2008-05-16 18:46:30 +00:00
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/******************************************************************************
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2012-01-30 16:42:02 +00:00
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Copyright (c) 2001-2012, Intel Corporation
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2008-05-16 18:46:30 +00:00
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the Intel Corporation nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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******************************************************************************/
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/*$FreeBSD$*/
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2007-07-11 23:03:16 +00:00
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#ifdef HAVE_KERNEL_OPTION_HEADERS
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2011-04-25 23:34:21 +00:00
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#include "opt_inet.h"
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2011-06-02 00:34:57 +00:00
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#include "opt_inet6.h"
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2007-07-11 23:03:16 +00:00
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#endif
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2007-07-12 19:04:11 +00:00
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#include "ixgbe.h"
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2007-07-11 23:03:16 +00:00
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/*********************************************************************
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* Set this to one to display debug statistics
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*********************************************************************/
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int ixgbe_display_debug_stats = 0;
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/*********************************************************************
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* Driver version
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*********************************************************************/
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2012-11-30 22:41:32 +00:00
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char ixgbe_driver_version[] = "2.5.0 - 3";
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2007-07-11 23:03:16 +00:00
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/*********************************************************************
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* PCI Device ID Table
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*
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* Used by probe to select devices to load on
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* Last field stores an index into ixgbe_strings
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* Last entry must be all 0s
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*
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* { Vendor ID, Device ID, SubVendor ID, SubDevice ID, String Index }
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*********************************************************************/
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static ixgbe_vendor_info_t ixgbe_vendor_info_array[] =
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{
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82598AF_DUAL_PORT, 0, 0, 0},
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82598AF_SINGLE_PORT, 0, 0, 0},
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2007-09-04 02:31:35 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82598EB_CX4, 0, 0, 0},
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2008-11-26 23:41:18 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82598AT, 0, 0, 0},
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2009-12-07 21:30:54 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82598AT2, 0, 0, 0},
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2008-11-26 23:41:18 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82598, 0, 0, 0},
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82598_DA_DUAL_PORT, 0, 0, 0},
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2008-05-16 18:46:30 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82598_CX4_DUAL_PORT, 0, 0, 0},
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82598EB_XF_LR, 0, 0, 0},
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2008-11-26 23:41:18 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM, 0, 0, 0},
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82598EB_SFP_LOM, 0, 0, 0},
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2009-04-10 00:22:48 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82599_KX4, 0, 0, 0},
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2009-12-07 21:30:54 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82599_KX4_MEZZ, 0, 0, 0},
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2009-04-10 00:22:48 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82599_SFP, 0, 0, 0},
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2009-06-24 18:27:07 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82599_XAUI_LOM, 0, 0, 0},
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2009-12-07 21:30:54 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82599_CX4, 0, 0, 0},
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2010-03-27 00:21:40 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82599_T3_LOM, 0, 0, 0},
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2009-12-07 21:30:54 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82599_COMBO_BACKPLANE, 0, 0, 0},
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2010-11-26 22:46:32 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82599_BACKPLANE_FCOE, 0, 0, 0},
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2012-07-05 20:51:44 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82599_SFP_SF2, 0, 0, 0},
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2010-11-26 22:46:32 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82599_SFP_FCOE, 0, 0, 0},
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2012-01-30 16:42:02 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82599EN_SFP, 0, 0, 0},
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2012-07-05 20:51:44 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X540T1, 0, 0, 0},
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2012-01-30 16:42:02 +00:00
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{IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X540T, 0, 0, 0},
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2007-07-11 23:03:16 +00:00
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/* required last entry */
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{0, 0, 0, 0, 0}
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};
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/*********************************************************************
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* Table of branding strings
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*********************************************************************/
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static char *ixgbe_strings[] = {
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"Intel(R) PRO/10GbE PCI-Express Network Driver"
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};
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/*********************************************************************
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* Function prototypes
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*********************************************************************/
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static int ixgbe_probe(device_t);
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static int ixgbe_attach(device_t);
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static int ixgbe_detach(device_t);
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static int ixgbe_shutdown(device_t);
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2009-06-24 18:27:07 +00:00
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#if __FreeBSD_version >= 800000
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static int ixgbe_mq_start(struct ifnet *, struct mbuf *);
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static int ixgbe_mq_start_locked(struct ifnet *,
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struct tx_ring *, struct mbuf *);
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static void ixgbe_qflush(struct ifnet *);
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2012-09-26 18:11:43 +00:00
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static void ixgbe_deferred_mq_start(void *, int);
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#else
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static void ixgbe_start(struct ifnet *);
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static void ixgbe_start_locked(struct tx_ring *, struct ifnet *);
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2009-06-24 18:27:07 +00:00
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#endif
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2007-07-11 23:03:16 +00:00
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static int ixgbe_ioctl(struct ifnet *, u_long, caddr_t);
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2010-03-30 19:09:18 +00:00
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static void ixgbe_init(void *);
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2010-06-03 00:00:45 +00:00
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static void ixgbe_init_locked(struct adapter *);
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2007-07-11 23:03:16 +00:00
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static void ixgbe_stop(void *);
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static void ixgbe_media_status(struct ifnet *, struct ifmediareq *);
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static int ixgbe_media_change(struct ifnet *);
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static void ixgbe_identify_hardware(struct adapter *);
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static int ixgbe_allocate_pci_resources(struct adapter *);
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2008-05-16 18:46:30 +00:00
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static int ixgbe_allocate_msix(struct adapter *);
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static int ixgbe_allocate_legacy(struct adapter *);
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static int ixgbe_allocate_queues(struct adapter *);
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static int ixgbe_setup_msix(struct adapter *);
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static void ixgbe_free_pci_resources(struct adapter *);
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2010-11-26 23:57:13 +00:00
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static void ixgbe_local_timer(void *);
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static int ixgbe_setup_interface(device_t, struct adapter *);
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static void ixgbe_config_link(struct adapter *);
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2008-05-16 18:46:30 +00:00
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2007-07-11 23:03:16 +00:00
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static int ixgbe_allocate_transmit_buffers(struct tx_ring *);
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static int ixgbe_setup_transmit_structures(struct adapter *);
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static void ixgbe_setup_transmit_ring(struct tx_ring *);
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static void ixgbe_initialize_transmit_units(struct adapter *);
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static void ixgbe_free_transmit_structures(struct adapter *);
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static void ixgbe_free_transmit_buffers(struct tx_ring *);
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static int ixgbe_allocate_receive_buffers(struct rx_ring *);
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static int ixgbe_setup_receive_structures(struct adapter *);
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static int ixgbe_setup_receive_ring(struct rx_ring *);
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static void ixgbe_initialize_receive_units(struct adapter *);
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static void ixgbe_free_receive_structures(struct adapter *);
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static void ixgbe_free_receive_buffers(struct rx_ring *);
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2009-12-07 21:30:54 +00:00
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static void ixgbe_setup_hw_rsc(struct rx_ring *);
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2007-07-11 23:03:16 +00:00
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static void ixgbe_enable_intr(struct adapter *);
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static void ixgbe_disable_intr(struct adapter *);
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static void ixgbe_update_stats_counters(struct adapter *);
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2007-09-04 02:31:35 +00:00
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static bool ixgbe_txeof(struct tx_ring *);
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2010-03-27 00:21:40 +00:00
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static bool ixgbe_rxeof(struct ix_queue *, int);
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2010-03-30 19:09:18 +00:00
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static void ixgbe_rx_checksum(u32, struct mbuf *, u32);
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2007-07-11 23:03:16 +00:00
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static void ixgbe_set_promisc(struct adapter *);
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static void ixgbe_set_multi(struct adapter *);
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static void ixgbe_update_link_status(struct adapter *);
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2010-03-27 00:21:40 +00:00
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static void ixgbe_refresh_mbufs(struct rx_ring *, int);
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2008-05-16 18:46:30 +00:00
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static int ixgbe_xmit(struct tx_ring *, struct mbuf **);
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2007-09-04 02:31:35 +00:00
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static int ixgbe_set_flowcntl(SYSCTL_HANDLER_ARGS);
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2010-06-30 01:10:08 +00:00
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static int ixgbe_set_advertise(SYSCTL_HANDLER_ARGS);
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2012-01-30 16:42:02 +00:00
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static int ixgbe_set_thermal_test(SYSCTL_HANDLER_ARGS);
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2007-07-11 23:03:16 +00:00
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static int ixgbe_dma_malloc(struct adapter *, bus_size_t,
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struct ixgbe_dma_alloc *, int);
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static void ixgbe_dma_free(struct adapter *, struct ixgbe_dma_alloc *);
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static void ixgbe_add_rx_process_limit(struct adapter *, const char *,
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const char *, int *, int);
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2009-06-24 18:27:07 +00:00
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static bool ixgbe_tx_ctx_setup(struct tx_ring *, struct mbuf *);
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2012-05-25 03:02:56 +00:00
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static bool ixgbe_tso_setup(struct tx_ring *, struct mbuf *, u32 *, u32 *);
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2009-06-24 18:27:07 +00:00
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static void ixgbe_set_ivar(struct adapter *, u8, u8, s8);
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2007-07-11 23:03:16 +00:00
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static void ixgbe_configure_ivars(struct adapter *);
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2008-05-16 18:46:30 +00:00
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static u8 * ixgbe_mc_array_itr(struct ixgbe_hw *, u8 **, u32 *);
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2009-06-24 18:27:07 +00:00
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static void ixgbe_setup_vlan_hw_support(struct adapter *);
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2008-07-30 18:15:18 +00:00
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static void ixgbe_register_vlan(void *, struct ifnet *, u16);
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static void ixgbe_unregister_vlan(void *, struct ifnet *, u16);
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2009-04-10 00:22:48 +00:00
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2010-11-27 01:34:09 +00:00
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static void ixgbe_add_hw_stats(struct adapter *adapter);
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2010-03-27 00:21:40 +00:00
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static __inline void ixgbe_rx_discard(struct rx_ring *, int);
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static __inline void ixgbe_rx_input(struct rx_ring *, struct ifnet *,
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struct mbuf *, u32);
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2008-11-26 23:41:18 +00:00
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A few important fixes:
- Testing TSO6 has led me to discover that HW RSC is
a problematic feature, it is ONLY designed to work
with IPv4 in the first place, and if IP forwarding
is done it can't be disabled as LRO in the stack,
also initial testing we've done at Intel shows an
equal performance using TSO[46] on the TX and LRO
on RX, if you ran older code on 82599 or later hardware
you actually could have detrimental performance for
this reason. So I am disabling the feature by default
and all our adapters will now use LRO instead.
- If you have flow control off and multiple queues it
was possible when the buffer of one queue becomes
full that all RX movement is stalled, to eliminate
this problem a feature bit is now set that will allow
packets to be dropped when full rather than stall.
Note, the default is to have flow control on, and this
keeps this from happening.
- Because of the recent fixes in the stack, LRO is now
auto-disabled when problematic, so I have decided to
enable it by default in the capabilities in the driver.
- There are some 1G modules used by some customers, a couple
small tweaks to properly support those in the media code.
- A note: we have now done some testing of TSO6 and using
LRO with IPv6 and it all works great!! Seeing line rate
in both directions in best cases. Thanks bz for your
excellent work!!
2012-10-31 23:50:36 +00:00
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static void ixgbe_enable_rx_drop(struct adapter *);
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static void ixgbe_disable_rx_drop(struct adapter *);
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2008-11-26 23:41:18 +00:00
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/* Support for pluggable optic modules */
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static bool ixgbe_sfp_probe(struct adapter *);
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2011-01-19 19:36:27 +00:00
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static void ixgbe_setup_optics(struct adapter *);
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2008-11-26 23:41:18 +00:00
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2008-05-16 18:46:30 +00:00
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/* Legacy (single vector interrupt handler */
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static void ixgbe_legacy_irq(void *);
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2007-07-11 23:03:16 +00:00
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/* The MSI/X Interrupt handlers */
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2010-03-27 00:21:40 +00:00
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static void ixgbe_msix_que(void *);
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2007-09-04 02:31:35 +00:00
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static void ixgbe_msix_link(void *);
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2009-04-10 00:22:48 +00:00
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/* Deferred interrupt tasklets */
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2010-03-27 00:21:40 +00:00
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static void ixgbe_handle_que(void *, int);
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2009-04-10 00:22:48 +00:00
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static void ixgbe_handle_link(void *, int);
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static void ixgbe_handle_msf(void *, int);
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static void ixgbe_handle_mod(void *, int);
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2007-07-11 23:03:16 +00:00
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2009-12-07 21:30:54 +00:00
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#ifdef IXGBE_FDIR
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static void ixgbe_atr(struct tx_ring *, struct mbuf *);
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static void ixgbe_reinit_fdir(void *, int);
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#endif
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2007-07-11 23:03:16 +00:00
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/*********************************************************************
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* FreeBSD Device Interface Entry Points
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*********************************************************************/
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static device_method_t ixgbe_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ixgbe_probe),
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DEVMETHOD(device_attach, ixgbe_attach),
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DEVMETHOD(device_detach, ixgbe_detach),
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DEVMETHOD(device_shutdown, ixgbe_shutdown),
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{0, 0}
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};
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static driver_t ixgbe_driver = {
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"ix", ixgbe_methods, sizeof(struct adapter),
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};
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2010-11-26 22:46:32 +00:00
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devclass_t ixgbe_devclass;
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2007-07-11 23:03:16 +00:00
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DRIVER_MODULE(ixgbe, pci, ixgbe_driver, ixgbe_devclass, 0, 0);
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MODULE_DEPEND(ixgbe, pci, 1, 1, 1);
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MODULE_DEPEND(ixgbe, ether, 1, 1, 1);
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2007-09-04 02:31:35 +00:00
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/*
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** TUNEABLE PARAMETERS:
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*/
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2008-11-26 23:41:18 +00:00
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/*
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2010-03-27 00:21:40 +00:00
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** AIM: Adaptive Interrupt Moderation
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** which means that the interrupt rate
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** is varied over time based on the
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** traffic for that interrupt vector
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2008-11-26 23:41:18 +00:00
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*/
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static int ixgbe_enable_aim = TRUE;
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TUNABLE_INT("hw.ixgbe.enable_aim", &ixgbe_enable_aim);
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2012-01-26 09:55:16 +00:00
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|
|
static int ixgbe_max_interrupt_rate = (4000000 / IXGBE_LOW_LATENCY);
|
2010-11-27 01:34:09 +00:00
|
|
|
TUNABLE_INT("hw.ixgbe.max_interrupt_rate", &ixgbe_max_interrupt_rate);
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* How many packets rxeof tries to clean at a time */
|
2010-03-27 00:21:40 +00:00
|
|
|
static int ixgbe_rx_process_limit = 128;
|
2007-07-11 23:03:16 +00:00
|
|
|
TUNABLE_INT("hw.ixgbe.rx_process_limit", &ixgbe_rx_process_limit);
|
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
/*
|
|
|
|
** Smart speed setting, default to on
|
|
|
|
** this only works as a compile option
|
|
|
|
** right now as its during attach, set
|
|
|
|
** this to 'ixgbe_smart_speed_off' to
|
|
|
|
** disable.
|
|
|
|
*/
|
|
|
|
static int ixgbe_smart_speed = ixgbe_smart_speed_on;
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
/*
|
|
|
|
* MSIX should be the default for best performance,
|
|
|
|
* but this allows it to be forced off for testing.
|
|
|
|
*/
|
|
|
|
static int ixgbe_enable_msix = 1;
|
|
|
|
TUNABLE_INT("hw.ixgbe.enable_msix", &ixgbe_enable_msix);
|
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
/*
|
2010-03-27 00:21:40 +00:00
|
|
|
* Number of Queues, can be set to 0,
|
|
|
|
* it then autoconfigures based on the
|
2011-04-25 23:34:21 +00:00
|
|
|
* number of cpus with a max of 8. This
|
|
|
|
* can be overriden manually here.
|
2008-11-26 23:41:18 +00:00
|
|
|
*/
|
2009-06-24 18:27:07 +00:00
|
|
|
static int ixgbe_num_queues = 0;
|
|
|
|
TUNABLE_INT("hw.ixgbe.num_queues", &ixgbe_num_queues);
|
2007-09-04 02:31:35 +00:00
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
/*
|
|
|
|
** Number of TX descriptors per ring,
|
|
|
|
** setting higher than RX as this seems
|
|
|
|
** the better performing choice.
|
|
|
|
*/
|
|
|
|
static int ixgbe_txd = PERFORM_TXD;
|
2007-09-04 02:31:35 +00:00
|
|
|
TUNABLE_INT("hw.ixgbe.txd", &ixgbe_txd);
|
|
|
|
|
|
|
|
/* Number of RX descriptors per ring */
|
2010-03-27 00:21:40 +00:00
|
|
|
static int ixgbe_rxd = PERFORM_RXD;
|
2007-09-04 02:31:35 +00:00
|
|
|
TUNABLE_INT("hw.ixgbe.rxd", &ixgbe_rxd);
|
|
|
|
|
A few important fixes:
- Testing TSO6 has led me to discover that HW RSC is
a problematic feature, it is ONLY designed to work
with IPv4 in the first place, and if IP forwarding
is done it can't be disabled as LRO in the stack,
also initial testing we've done at Intel shows an
equal performance using TSO[46] on the TX and LRO
on RX, if you ran older code on 82599 or later hardware
you actually could have detrimental performance for
this reason. So I am disabling the feature by default
and all our adapters will now use LRO instead.
- If you have flow control off and multiple queues it
was possible when the buffer of one queue becomes
full that all RX movement is stalled, to eliminate
this problem a feature bit is now set that will allow
packets to be dropped when full rather than stall.
Note, the default is to have flow control on, and this
keeps this from happening.
- Because of the recent fixes in the stack, LRO is now
auto-disabled when problematic, so I have decided to
enable it by default in the capabilities in the driver.
- There are some 1G modules used by some customers, a couple
small tweaks to properly support those in the media code.
- A note: we have now done some testing of TSO6 and using
LRO with IPv6 and it all works great!! Seeing line rate
in both directions in best cases. Thanks bz for your
excellent work!!
2012-10-31 23:50:36 +00:00
|
|
|
/*
|
|
|
|
** HW RSC control:
|
|
|
|
** this feature only works with
|
|
|
|
** IPv4, and only on 82599 and later.
|
|
|
|
** Also this will cause IP forwarding to
|
|
|
|
** fail and that can't be controlled by
|
|
|
|
** the stack as LRO can. For all these
|
|
|
|
** reasons I've deemed it best to leave
|
|
|
|
** this off and not bother with a tuneable
|
|
|
|
** interface, this would need to be compiled
|
|
|
|
** to enable.
|
|
|
|
*/
|
|
|
|
static bool ixgbe_rsc_enable = FALSE;
|
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
/* Keep running tab on them for sanity check */
|
2007-09-04 02:31:35 +00:00
|
|
|
static int ixgbe_total_ports;
|
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
#ifdef IXGBE_FDIR
|
|
|
|
/*
|
|
|
|
** For Flow Director: this is the
|
|
|
|
** number of TX packets we sample
|
|
|
|
** for the filter pool, this means
|
|
|
|
** every 20th packet will be probed.
|
|
|
|
**
|
|
|
|
** This feature can be disabled by
|
|
|
|
** setting this to 0.
|
|
|
|
*/
|
|
|
|
static int atr_sample_rate = 20;
|
|
|
|
/*
|
|
|
|
** Flow Director actually 'steals'
|
|
|
|
** part of the packet buffer as its
|
|
|
|
** filter pool, this variable controls
|
|
|
|
** how much it uses:
|
|
|
|
** 0 = 64K, 1 = 128K, 2 = 256K
|
|
|
|
*/
|
|
|
|
static int fdir_pballoc = 1;
|
|
|
|
#endif
|
|
|
|
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
#ifdef DEV_NETMAP
|
|
|
|
/*
|
|
|
|
* The #ifdef DEV_NETMAP / #endif blocks in this file are meant to
|
|
|
|
* be a reference on how to implement netmap support in a driver.
|
|
|
|
* Additional comments are in ixgbe_netmap.h .
|
|
|
|
*
|
2012-05-17 14:36:19 +00:00
|
|
|
* <dev/netmap/ixgbe_netmap.h> contains functions for netmap support
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
* that extend the standard driver.
|
|
|
|
*/
|
|
|
|
#include <dev/netmap/ixgbe_netmap.h>
|
|
|
|
#endif /* DEV_NETMAP */
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/*********************************************************************
|
|
|
|
* Device identification routine
|
|
|
|
*
|
|
|
|
* ixgbe_probe determines if the driver should be loaded on
|
|
|
|
* adapter based on PCI vendor/device id of the adapter.
|
|
|
|
*
|
2011-06-02 00:34:57 +00:00
|
|
|
* return BUS_PROBE_DEFAULT on success, positive on failure
|
2007-07-11 23:03:16 +00:00
|
|
|
*********************************************************************/
|
|
|
|
|
|
|
|
static int
|
|
|
|
ixgbe_probe(device_t dev)
|
|
|
|
{
|
|
|
|
ixgbe_vendor_info_t *ent;
|
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
u16 pci_vendor_id = 0;
|
|
|
|
u16 pci_device_id = 0;
|
|
|
|
u16 pci_subvendor_id = 0;
|
|
|
|
u16 pci_subdevice_id = 0;
|
|
|
|
char adapter_name[256];
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
INIT_DEBUGOUT("ixgbe_probe: begin");
|
|
|
|
|
|
|
|
pci_vendor_id = pci_get_vendor(dev);
|
|
|
|
if (pci_vendor_id != IXGBE_INTEL_VENDOR_ID)
|
|
|
|
return (ENXIO);
|
|
|
|
|
|
|
|
pci_device_id = pci_get_device(dev);
|
|
|
|
pci_subvendor_id = pci_get_subvendor(dev);
|
|
|
|
pci_subdevice_id = pci_get_subdevice(dev);
|
|
|
|
|
|
|
|
ent = ixgbe_vendor_info_array;
|
|
|
|
while (ent->vendor_id != 0) {
|
|
|
|
if ((pci_vendor_id == ent->vendor_id) &&
|
|
|
|
(pci_device_id == ent->device_id) &&
|
|
|
|
|
|
|
|
((pci_subvendor_id == ent->subvendor_id) ||
|
|
|
|
(ent->subvendor_id == 0)) &&
|
|
|
|
|
|
|
|
((pci_subdevice_id == ent->subdevice_id) ||
|
|
|
|
(ent->subdevice_id == 0))) {
|
|
|
|
sprintf(adapter_name, "%s, Version - %s",
|
|
|
|
ixgbe_strings[ent->index],
|
|
|
|
ixgbe_driver_version);
|
|
|
|
device_set_desc_copy(dev, adapter_name);
|
2009-04-10 00:22:48 +00:00
|
|
|
++ixgbe_total_ports;
|
2011-06-02 00:34:57 +00:00
|
|
|
return (BUS_PROBE_DEFAULT);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
ent++;
|
|
|
|
}
|
|
|
|
return (ENXIO);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
* Device initialization routine
|
|
|
|
*
|
|
|
|
* The attach entry point is called when the driver is being loaded.
|
|
|
|
* This routine identifies the type of hardware, allocates all resources
|
|
|
|
* and initializes the hardware.
|
|
|
|
*
|
|
|
|
* return 0 on success, positive on failure
|
|
|
|
*********************************************************************/
|
|
|
|
|
|
|
|
static int
|
|
|
|
ixgbe_attach(device_t dev)
|
|
|
|
{
|
|
|
|
struct adapter *adapter;
|
2009-04-10 00:22:48 +00:00
|
|
|
struct ixgbe_hw *hw;
|
2007-07-11 23:03:16 +00:00
|
|
|
int error = 0;
|
2011-01-19 19:36:27 +00:00
|
|
|
u16 csum;
|
2008-11-26 23:41:18 +00:00
|
|
|
u32 ctrl_ext;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
INIT_DEBUGOUT("ixgbe_attach: begin");
|
|
|
|
|
|
|
|
/* Allocate, clear, and link in our adapter structure */
|
|
|
|
adapter = device_get_softc(dev);
|
|
|
|
adapter->dev = adapter->osdep.dev = dev;
|
2009-04-10 00:22:48 +00:00
|
|
|
hw = &adapter->hw;
|
2008-05-16 18:46:30 +00:00
|
|
|
|
|
|
|
/* Core Lock Init*/
|
|
|
|
IXGBE_CORE_LOCK_INIT(adapter, device_get_nameunit(dev));
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* SYSCTL APIs */
|
|
|
|
|
2007-09-04 02:31:35 +00:00
|
|
|
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
|
2007-07-11 23:03:16 +00:00
|
|
|
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
|
2012-01-30 16:42:02 +00:00
|
|
|
OID_AUTO, "fc", CTLTYPE_INT | CTLFLAG_RW,
|
2007-09-04 02:31:35 +00:00
|
|
|
adapter, 0, ixgbe_set_flowcntl, "I", "Flow Control");
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
|
|
|
|
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
|
|
|
|
OID_AUTO, "enable_aim", CTLTYPE_INT|CTLFLAG_RW,
|
|
|
|
&ixgbe_enable_aim, 1, "Interrupt Moderation");
|
|
|
|
|
2012-01-30 16:42:02 +00:00
|
|
|
/*
|
|
|
|
** Allow a kind of speed control by forcing the autoneg
|
|
|
|
** advertised speed list to only a certain value, this
|
|
|
|
** supports 1G on 82599 devices, and 100Mb on x540.
|
|
|
|
*/
|
|
|
|
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
|
|
|
|
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
|
|
|
|
OID_AUTO, "advertise_speed", CTLTYPE_INT | CTLFLAG_RW,
|
|
|
|
adapter, 0, ixgbe_set_advertise, "I", "Link Speed");
|
|
|
|
|
|
|
|
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
|
|
|
|
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
|
|
|
|
OID_AUTO, "ts", CTLTYPE_INT | CTLFLAG_RW, adapter,
|
|
|
|
0, ixgbe_set_thermal_test, "I", "Thermal Test");
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* Set up the timer callout */
|
2007-09-04 02:31:35 +00:00
|
|
|
callout_init_mtx(&adapter->timer, &adapter->core_mtx, 0);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* Determine hardware revision */
|
|
|
|
ixgbe_identify_hardware(adapter);
|
|
|
|
|
|
|
|
/* Do base PCI setup - map BAR0 */
|
|
|
|
if (ixgbe_allocate_pci_resources(adapter)) {
|
|
|
|
device_printf(dev, "Allocation of PCI resources failed\n");
|
|
|
|
error = ENXIO;
|
|
|
|
goto err_out;
|
|
|
|
}
|
|
|
|
|
2007-09-04 02:31:35 +00:00
|
|
|
/* Do descriptor calc and sanity checks */
|
|
|
|
if (((ixgbe_txd * sizeof(union ixgbe_adv_tx_desc)) % DBA_ALIGN) != 0 ||
|
|
|
|
ixgbe_txd < MIN_TXD || ixgbe_txd > MAX_TXD) {
|
|
|
|
device_printf(dev, "TXD config issue, using default!\n");
|
|
|
|
adapter->num_tx_desc = DEFAULT_TXD;
|
|
|
|
} else
|
|
|
|
adapter->num_tx_desc = ixgbe_txd;
|
|
|
|
|
|
|
|
/*
|
|
|
|
** With many RX rings it is easy to exceed the
|
|
|
|
** system mbuf allocation. Tuning nmbclusters
|
|
|
|
** can alleviate this.
|
|
|
|
*/
|
2009-07-01 16:13:01 +00:00
|
|
|
if (nmbclusters > 0 ) {
|
2007-09-04 02:31:35 +00:00
|
|
|
int s;
|
2009-06-24 18:27:07 +00:00
|
|
|
s = (ixgbe_rxd * adapter->num_queues) * ixgbe_total_ports;
|
2007-09-04 02:31:35 +00:00
|
|
|
if (s > nmbclusters) {
|
|
|
|
device_printf(dev, "RX Descriptors exceed "
|
|
|
|
"system mbuf max, using default instead!\n");
|
|
|
|
ixgbe_rxd = DEFAULT_RXD;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (((ixgbe_rxd * sizeof(union ixgbe_adv_rx_desc)) % DBA_ALIGN) != 0 ||
|
|
|
|
ixgbe_rxd < MIN_TXD || ixgbe_rxd > MAX_TXD) {
|
|
|
|
device_printf(dev, "RXD config issue, using default!\n");
|
|
|
|
adapter->num_rx_desc = DEFAULT_RXD;
|
|
|
|
} else
|
|
|
|
adapter->num_rx_desc = ixgbe_rxd;
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* Allocate our TX/RX Queues */
|
|
|
|
if (ixgbe_allocate_queues(adapter)) {
|
|
|
|
error = ENOMEM;
|
|
|
|
goto err_out;
|
|
|
|
}
|
|
|
|
|
2010-11-26 23:57:13 +00:00
|
|
|
/* Allocate multicast array memory. */
|
|
|
|
adapter->mta = malloc(sizeof(u8) * IXGBE_ETH_LENGTH_OF_ADDRESS *
|
|
|
|
MAX_NUM_MULTICAST_ADDRESSES, M_DEVBUF, M_NOWAIT);
|
|
|
|
if (adapter->mta == NULL) {
|
|
|
|
device_printf(dev, "Can not allocate multicast setup array\n");
|
|
|
|
error = ENOMEM;
|
|
|
|
goto err_late;
|
|
|
|
}
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* Initialize the shared code */
|
2009-04-10 00:22:48 +00:00
|
|
|
error = ixgbe_init_shared_code(hw);
|
2008-11-26 23:41:18 +00:00
|
|
|
if (error == IXGBE_ERR_SFP_NOT_PRESENT) {
|
|
|
|
/*
|
|
|
|
** No optics in this port, set up
|
|
|
|
** so the timer routine will probe
|
|
|
|
** for later insertion.
|
|
|
|
*/
|
|
|
|
adapter->sfp_probe = TRUE;
|
|
|
|
error = 0;
|
|
|
|
} else if (error == IXGBE_ERR_SFP_NOT_SUPPORTED) {
|
|
|
|
device_printf(dev,"Unsupported SFP+ module detected!\n");
|
|
|
|
error = EIO;
|
|
|
|
goto err_late;
|
|
|
|
} else if (error) {
|
2007-07-11 23:03:16 +00:00
|
|
|
device_printf(dev,"Unable to initialize the shared code\n");
|
|
|
|
error = EIO;
|
2008-05-16 18:46:30 +00:00
|
|
|
goto err_late;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
/* Make sure we have a good EEPROM before we read from it */
|
|
|
|
if (ixgbe_validate_eeprom_checksum(&adapter->hw, &csum) < 0) {
|
|
|
|
device_printf(dev,"The EEPROM Checksum Is Not Valid\n");
|
2007-07-11 23:03:16 +00:00
|
|
|
error = EIO;
|
2008-05-16 18:46:30 +00:00
|
|
|
goto err_late;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
error = ixgbe_init_hw(hw);
|
2012-07-05 20:51:44 +00:00
|
|
|
switch (error) {
|
|
|
|
case IXGBE_ERR_EEPROM_VERSION:
|
2009-12-07 21:30:54 +00:00
|
|
|
device_printf(dev, "This device is a pre-production adapter/"
|
|
|
|
"LOM. Please be aware there may be issues associated "
|
|
|
|
"with your hardware.\n If you are experiencing problems "
|
|
|
|
"please contact your Intel or hardware representative "
|
|
|
|
"who provided you with this hardware.\n");
|
2012-07-05 20:51:44 +00:00
|
|
|
break;
|
|
|
|
case IXGBE_ERR_SFP_NOT_SUPPORTED:
|
2009-12-07 21:30:54 +00:00
|
|
|
device_printf(dev,"Unsupported SFP+ Module\n");
|
|
|
|
error = EIO;
|
|
|
|
device_printf(dev,"Hardware Initialization Failure\n");
|
|
|
|
goto err_late;
|
2012-07-05 20:51:44 +00:00
|
|
|
case IXGBE_ERR_SFP_NOT_PRESENT:
|
|
|
|
device_printf(dev,"No SFP+ Module found\n");
|
|
|
|
/* falls thru */
|
|
|
|
default:
|
|
|
|
break;
|
2009-12-07 21:30:54 +00:00
|
|
|
}
|
|
|
|
|
2011-01-19 19:36:27 +00:00
|
|
|
/* Detect and set physical type */
|
|
|
|
ixgbe_setup_optics(adapter);
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
if ((adapter->msix > 1) && (ixgbe_enable_msix))
|
|
|
|
error = ixgbe_allocate_msix(adapter);
|
|
|
|
else
|
|
|
|
error = ixgbe_allocate_legacy(adapter);
|
|
|
|
if (error)
|
|
|
|
goto err_late;
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* Setup OS specific network interface */
|
2010-11-26 23:57:13 +00:00
|
|
|
if (ixgbe_setup_interface(dev, adapter) != 0)
|
|
|
|
goto err_late;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* Sysctl for limiting the amount of work done in the taskqueue */
|
|
|
|
ixgbe_add_rx_process_limit(adapter, "rx_processing_limit",
|
|
|
|
"max number of rx packets to process", &adapter->rx_process_limit,
|
|
|
|
ixgbe_rx_process_limit);
|
|
|
|
|
|
|
|
/* Initialize statistics */
|
|
|
|
ixgbe_update_stats_counters(adapter);
|
|
|
|
|
2008-07-30 18:15:18 +00:00
|
|
|
/* Register for VLAN events */
|
|
|
|
adapter->vlan_attach = EVENTHANDLER_REGISTER(vlan_config,
|
2009-07-24 21:35:52 +00:00
|
|
|
ixgbe_register_vlan, adapter, EVENTHANDLER_PRI_FIRST);
|
2008-07-30 18:15:18 +00:00
|
|
|
adapter->vlan_detach = EVENTHANDLER_REGISTER(vlan_unconfig,
|
2009-07-24 21:35:52 +00:00
|
|
|
ixgbe_unregister_vlan, adapter, EVENTHANDLER_PRI_FIRST);
|
2009-04-10 00:22:48 +00:00
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
/* Print PCIE bus type/speed/width info */
|
|
|
|
ixgbe_get_bus_info(hw);
|
|
|
|
device_printf(dev,"PCI Express Bus: Speed %s %s\n",
|
|
|
|
((hw->bus.speed == ixgbe_bus_speed_5000) ? "5.0Gb/s":
|
|
|
|
(hw->bus.speed == ixgbe_bus_speed_2500) ? "2.5Gb/s":"Unknown"),
|
|
|
|
(hw->bus.width == ixgbe_bus_width_pcie_x8) ? "Width x8" :
|
|
|
|
(hw->bus.width == ixgbe_bus_width_pcie_x4) ? "Width x4" :
|
|
|
|
(hw->bus.width == ixgbe_bus_width_pcie_x1) ? "Width x1" :
|
|
|
|
("Unknown"));
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
if ((hw->bus.width <= ixgbe_bus_width_pcie_x4) &&
|
|
|
|
(hw->bus.speed == ixgbe_bus_speed_2500)) {
|
2009-12-07 21:30:54 +00:00
|
|
|
device_printf(dev, "PCI-Express bandwidth available"
|
|
|
|
" for this card\n is not sufficient for"
|
|
|
|
" optimal performance.\n");
|
|
|
|
device_printf(dev, "For optimal performance a x8 "
|
2010-03-27 00:21:40 +00:00
|
|
|
"PCIE, or x4 PCIE 2 slot is required.\n");
|
2009-12-07 21:30:54 +00:00
|
|
|
}
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* let hardware know driver is loaded */
|
2009-04-10 00:22:48 +00:00
|
|
|
ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
|
2007-07-11 23:03:16 +00:00
|
|
|
ctrl_ext |= IXGBE_CTRL_EXT_DRV_LOAD;
|
2009-04-10 00:22:48 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-11-27 01:34:09 +00:00
|
|
|
ixgbe_add_hw_stats(adapter);
|
|
|
|
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
#ifdef DEV_NETMAP
|
|
|
|
ixgbe_netmap_attach(adapter);
|
|
|
|
#endif /* DEV_NETMAP */
|
2007-07-11 23:03:16 +00:00
|
|
|
INIT_DEBUGOUT("ixgbe_attach: end");
|
|
|
|
return (0);
|
2008-05-16 18:46:30 +00:00
|
|
|
err_late:
|
|
|
|
ixgbe_free_transmit_structures(adapter);
|
|
|
|
ixgbe_free_receive_structures(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
err_out:
|
2010-11-26 23:57:13 +00:00
|
|
|
if (adapter->ifp != NULL)
|
|
|
|
if_free(adapter->ifp);
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_free_pci_resources(adapter);
|
2010-11-26 23:57:13 +00:00
|
|
|
free(adapter->mta, M_DEVBUF);
|
2007-07-11 23:03:16 +00:00
|
|
|
return (error);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
* Device removal routine
|
|
|
|
*
|
|
|
|
* The detach entry point is called when the driver is being removed.
|
|
|
|
* This routine stops the adapter and deallocates all the resources
|
|
|
|
* that were allocated for driver operation.
|
|
|
|
*
|
|
|
|
* return 0 on success, positive on failure
|
|
|
|
*********************************************************************/
|
|
|
|
|
|
|
|
static int
|
|
|
|
ixgbe_detach(device_t dev)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = device_get_softc(dev);
|
2010-03-27 00:21:40 +00:00
|
|
|
struct ix_queue *que = adapter->queues;
|
2012-09-26 18:11:43 +00:00
|
|
|
struct tx_ring *txr = adapter->tx_rings;
|
2007-07-11 23:03:16 +00:00
|
|
|
u32 ctrl_ext;
|
|
|
|
|
|
|
|
INIT_DEBUGOUT("ixgbe_detach: begin");
|
|
|
|
|
|
|
|
/* Make sure VLANS are not using driver */
|
|
|
|
if (adapter->ifp->if_vlantrunk != NULL) {
|
|
|
|
device_printf(dev,"Vlan in use, detach first\n");
|
|
|
|
return (EBUSY);
|
|
|
|
}
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_CORE_LOCK(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_stop(adapter);
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_CORE_UNLOCK(adapter);
|
2007-09-04 02:31:35 +00:00
|
|
|
|
2012-09-26 18:11:43 +00:00
|
|
|
for (int i = 0; i < adapter->num_queues; i++, que++, txr++) {
|
2010-03-27 00:21:40 +00:00
|
|
|
if (que->tq) {
|
2012-09-26 18:11:43 +00:00
|
|
|
#if __FreeBSD_version >= 800000
|
|
|
|
taskqueue_drain(que->tq, &txr->txq_task);
|
|
|
|
#endif
|
2010-03-27 00:21:40 +00:00
|
|
|
taskqueue_drain(que->tq, &que->que_task);
|
|
|
|
taskqueue_free(que->tq);
|
2008-07-30 18:15:18 +00:00
|
|
|
}
|
2008-05-16 18:46:30 +00:00
|
|
|
}
|
2008-07-30 18:15:18 +00:00
|
|
|
|
2009-04-10 00:22:48 +00:00
|
|
|
/* Drain the Link queue */
|
|
|
|
if (adapter->tq) {
|
|
|
|
taskqueue_drain(adapter->tq, &adapter->link_task);
|
|
|
|
taskqueue_drain(adapter->tq, &adapter->mod_task);
|
|
|
|
taskqueue_drain(adapter->tq, &adapter->msf_task);
|
2009-12-07 21:30:54 +00:00
|
|
|
#ifdef IXGBE_FDIR
|
|
|
|
taskqueue_drain(adapter->tq, &adapter->fdir_task);
|
|
|
|
#endif
|
2009-04-10 00:22:48 +00:00
|
|
|
taskqueue_free(adapter->tq);
|
|
|
|
}
|
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
/* let hardware know driver is unloading */
|
|
|
|
ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT);
|
|
|
|
ctrl_ext &= ~IXGBE_CTRL_EXT_DRV_LOAD;
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, ctrl_ext);
|
|
|
|
|
2008-07-30 18:15:18 +00:00
|
|
|
/* Unregister VLAN events */
|
|
|
|
if (adapter->vlan_attach != NULL)
|
|
|
|
EVENTHANDLER_DEREGISTER(vlan_config, adapter->vlan_attach);
|
|
|
|
if (adapter->vlan_detach != NULL)
|
|
|
|
EVENTHANDLER_DEREGISTER(vlan_unconfig, adapter->vlan_detach);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
ether_ifdetach(adapter->ifp);
|
|
|
|
callout_drain(&adapter->timer);
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
#ifdef DEV_NETMAP
|
|
|
|
netmap_detach(adapter->ifp);
|
|
|
|
#endif /* DEV_NETMAP */
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_free_pci_resources(adapter);
|
|
|
|
bus_generic_detach(dev);
|
|
|
|
if_free(adapter->ifp);
|
|
|
|
|
|
|
|
ixgbe_free_transmit_structures(adapter);
|
|
|
|
ixgbe_free_receive_structures(adapter);
|
2010-11-26 23:57:13 +00:00
|
|
|
free(adapter->mta, M_DEVBUF);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_CORE_LOCK_DESTROY(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Shutdown entry point
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
|
|
|
|
static int
|
|
|
|
ixgbe_shutdown(device_t dev)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = device_get_softc(dev);
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_CORE_LOCK(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_stop(adapter);
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_CORE_UNLOCK(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2012-09-26 18:11:43 +00:00
|
|
|
#if __FreeBSD_version < 800000
|
2007-07-11 23:03:16 +00:00
|
|
|
/*********************************************************************
|
|
|
|
* Transmit entry point
|
|
|
|
*
|
|
|
|
* ixgbe_start is called by the stack to initiate a transmit.
|
|
|
|
* The driver will remain in this routine as long as there are
|
|
|
|
* packets to transmit and transmit resources are available.
|
|
|
|
* In case resources are not available stack is notified and
|
|
|
|
* the packet is requeued.
|
|
|
|
**********************************************************************/
|
|
|
|
|
|
|
|
static void
|
2008-05-16 18:46:30 +00:00
|
|
|
ixgbe_start_locked(struct tx_ring *txr, struct ifnet * ifp)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
|
|
|
struct mbuf *m_head;
|
2008-05-16 18:46:30 +00:00
|
|
|
struct adapter *adapter = txr->adapter;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_TX_LOCK_ASSERT(txr);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2012-11-30 22:33:21 +00:00
|
|
|
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
|
2007-07-11 23:03:16 +00:00
|
|
|
return;
|
|
|
|
if (!adapter->link_active)
|
|
|
|
return;
|
|
|
|
|
|
|
|
while (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) {
|
2012-11-30 22:33:21 +00:00
|
|
|
if (txr->tx_avail <= IXGBE_QUEUE_MIN_FREE)
|
2012-01-30 16:42:02 +00:00
|
|
|
break;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head);
|
|
|
|
if (m_head == NULL)
|
|
|
|
break;
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
if (ixgbe_xmit(txr, &m_head)) {
|
2012-01-30 16:42:02 +00:00
|
|
|
if (m_head != NULL)
|
|
|
|
IFQ_DRV_PREPEND(&ifp->if_snd, m_head);
|
2007-07-11 23:03:16 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* Send a copy of the frame to the BPF listener */
|
2007-09-04 02:31:35 +00:00
|
|
|
ETHER_BPF_MTAP(ifp, m_head);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
/* Set watchdog on */
|
2010-04-16 16:33:05 +00:00
|
|
|
txr->watchdog_time = ticks;
|
2010-11-26 22:46:32 +00:00
|
|
|
txr->queue_status = IXGBE_QUEUE_WORKING;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
/*
|
|
|
|
* Legacy TX start - called by the stack, this
|
|
|
|
* always uses the first tx ring, and should
|
|
|
|
* not be used with multiqueue tx enabled.
|
|
|
|
*/
|
2007-07-11 23:03:16 +00:00
|
|
|
static void
|
|
|
|
ixgbe_start(struct ifnet *ifp)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = ifp->if_softc;
|
2008-05-16 18:46:30 +00:00
|
|
|
struct tx_ring *txr = adapter->tx_rings;
|
|
|
|
|
|
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
|
2009-06-24 18:27:07 +00:00
|
|
|
IXGBE_TX_LOCK(txr);
|
2008-05-16 18:46:30 +00:00
|
|
|
ixgbe_start_locked(txr, ifp);
|
|
|
|
IXGBE_TX_UNLOCK(txr);
|
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2012-09-26 18:11:43 +00:00
|
|
|
#else
|
2009-06-24 18:27:07 +00:00
|
|
|
/*
|
|
|
|
** Multiqueue Transmit driver
|
|
|
|
**
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
ixgbe_mq_start(struct ifnet *ifp, struct mbuf *m)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = ifp->if_softc;
|
2010-06-03 00:00:45 +00:00
|
|
|
struct ix_queue *que;
|
2009-06-24 18:27:07 +00:00
|
|
|
struct tx_ring *txr;
|
|
|
|
int i = 0, err = 0;
|
|
|
|
|
|
|
|
/* Which queue to use */
|
|
|
|
if ((m->m_flags & M_FLOWID) != 0)
|
|
|
|
i = m->m_pkthdr.flowid % adapter->num_queues;
|
2012-01-30 16:42:02 +00:00
|
|
|
else
|
|
|
|
i = curcpu % adapter->num_queues;
|
2010-03-27 00:21:40 +00:00
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
txr = &adapter->tx_rings[i];
|
2010-06-03 00:00:45 +00:00
|
|
|
que = &adapter->queues[i];
|
2009-06-24 18:27:07 +00:00
|
|
|
|
2012-11-30 22:33:21 +00:00
|
|
|
if (IXGBE_TX_TRYLOCK(txr)) {
|
2009-06-24 18:27:07 +00:00
|
|
|
err = ixgbe_mq_start_locked(ifp, txr, m);
|
|
|
|
IXGBE_TX_UNLOCK(txr);
|
2010-06-03 00:00:45 +00:00
|
|
|
} else {
|
2009-06-24 18:27:07 +00:00
|
|
|
err = drbr_enqueue(ifp, txr->br, m);
|
2012-09-26 18:11:43 +00:00
|
|
|
taskqueue_enqueue(que->tq, &txr->txq_task);
|
2010-06-03 00:00:45 +00:00
|
|
|
}
|
2009-06-24 18:27:07 +00:00
|
|
|
|
|
|
|
return (err);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
ixgbe_mq_start_locked(struct ifnet *ifp, struct tx_ring *txr, struct mbuf *m)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = txr->adapter;
|
|
|
|
struct mbuf *next;
|
2010-03-27 00:21:40 +00:00
|
|
|
int enqueued, err = 0;
|
2009-06-24 18:27:07 +00:00
|
|
|
|
2012-01-30 16:42:02 +00:00
|
|
|
if (((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) ||
|
|
|
|
adapter->link_active == 0) {
|
2010-03-27 00:21:40 +00:00
|
|
|
if (m != NULL)
|
|
|
|
err = drbr_enqueue(ifp, txr->br, m);
|
2009-06-24 18:27:07 +00:00
|
|
|
return (err);
|
|
|
|
}
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
enqueued = 0;
|
2010-03-30 19:09:18 +00:00
|
|
|
if (m == NULL) {
|
2010-03-27 00:21:40 +00:00
|
|
|
next = drbr_dequeue(ifp, txr->br);
|
2010-03-30 19:09:18 +00:00
|
|
|
} else if (drbr_needs_enqueue(ifp, txr->br)) {
|
|
|
|
if ((err = drbr_enqueue(ifp, txr->br, m)) != 0)
|
|
|
|
return (err);
|
|
|
|
next = drbr_dequeue(ifp, txr->br);
|
|
|
|
} else
|
2010-03-27 00:21:40 +00:00
|
|
|
next = m;
|
2009-06-24 18:27:07 +00:00
|
|
|
|
|
|
|
/* Process the queue */
|
2010-03-27 00:21:40 +00:00
|
|
|
while (next != NULL) {
|
2009-12-07 21:30:54 +00:00
|
|
|
if ((err = ixgbe_xmit(txr, &next)) != 0) {
|
|
|
|
if (next != NULL)
|
|
|
|
err = drbr_enqueue(ifp, txr->br, next);
|
2009-06-24 18:27:07 +00:00
|
|
|
break;
|
2009-12-07 21:30:54 +00:00
|
|
|
}
|
2010-03-27 00:21:40 +00:00
|
|
|
enqueued++;
|
|
|
|
/* Send a copy of the frame to the BPF listener */
|
2009-06-24 18:27:07 +00:00
|
|
|
ETHER_BPF_MTAP(ifp, next);
|
2010-03-27 00:21:40 +00:00
|
|
|
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
|
|
|
|
break;
|
2011-04-25 23:34:21 +00:00
|
|
|
if (txr->tx_avail < IXGBE_TX_OP_THRESHOLD)
|
|
|
|
ixgbe_txeof(txr);
|
2010-03-27 00:21:40 +00:00
|
|
|
next = drbr_dequeue(ifp, txr->br);
|
2009-06-24 18:27:07 +00:00
|
|
|
}
|
2010-03-27 00:21:40 +00:00
|
|
|
|
2010-04-16 16:33:05 +00:00
|
|
|
if (enqueued > 0) {
|
|
|
|
/* Set watchdog on */
|
2012-11-30 22:33:21 +00:00
|
|
|
txr->queue_status = IXGBE_QUEUE_WORKING;
|
2010-04-16 16:33:05 +00:00
|
|
|
txr->watchdog_time = ticks;
|
|
|
|
}
|
2009-06-24 18:27:07 +00:00
|
|
|
|
2012-01-30 16:42:02 +00:00
|
|
|
if (txr->tx_avail < IXGBE_TX_CLEANUP_THRESHOLD)
|
|
|
|
ixgbe_txeof(txr);
|
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
return (err);
|
|
|
|
}
|
|
|
|
|
2012-09-26 18:11:43 +00:00
|
|
|
/*
|
|
|
|
* Called from a taskqueue to drain queued transmit packets.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
ixgbe_deferred_mq_start(void *arg, int pending)
|
|
|
|
{
|
|
|
|
struct tx_ring *txr = arg;
|
|
|
|
struct adapter *adapter = txr->adapter;
|
|
|
|
struct ifnet *ifp = adapter->ifp;
|
|
|
|
|
|
|
|
IXGBE_TX_LOCK(txr);
|
|
|
|
if (!drbr_empty(ifp, txr->br))
|
|
|
|
ixgbe_mq_start_locked(ifp, txr, NULL);
|
|
|
|
IXGBE_TX_UNLOCK(txr);
|
|
|
|
}
|
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
/*
|
|
|
|
** Flush all ring buffers
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
ixgbe_qflush(struct ifnet *ifp)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = ifp->if_softc;
|
|
|
|
struct tx_ring *txr = adapter->tx_rings;
|
|
|
|
struct mbuf *m;
|
|
|
|
|
|
|
|
for (int i = 0; i < adapter->num_queues; i++, txr++) {
|
|
|
|
IXGBE_TX_LOCK(txr);
|
|
|
|
while ((m = buf_ring_dequeue_sc(txr->br)) != NULL)
|
|
|
|
m_freem(m);
|
|
|
|
IXGBE_TX_UNLOCK(txr);
|
|
|
|
}
|
|
|
|
if_qflush(ifp);
|
|
|
|
}
|
|
|
|
#endif /* __FreeBSD_version >= 800000 */
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/*********************************************************************
|
|
|
|
* Ioctl entry point
|
|
|
|
*
|
|
|
|
* ixgbe_ioctl is called when the user wants to configure the
|
|
|
|
* interface.
|
|
|
|
*
|
|
|
|
* return 0 on success, positive on failure
|
|
|
|
**********************************************************************/
|
|
|
|
|
|
|
|
static int
|
|
|
|
ixgbe_ioctl(struct ifnet * ifp, u_long command, caddr_t data)
|
|
|
|
{
|
2010-03-27 00:21:40 +00:00
|
|
|
struct adapter *adapter = ifp->if_softc;
|
2012-11-30 22:41:32 +00:00
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
2010-03-27 00:21:40 +00:00
|
|
|
struct ifreq *ifr = (struct ifreq *) data;
|
2011-06-02 00:34:57 +00:00
|
|
|
#if defined(INET) || defined(INET6)
|
2011-04-25 23:34:21 +00:00
|
|
|
struct ifaddr *ifa = (struct ifaddr *)data;
|
2011-06-02 00:34:57 +00:00
|
|
|
bool avoid_reset = FALSE;
|
2011-04-25 23:34:21 +00:00
|
|
|
#endif
|
2009-06-24 18:27:07 +00:00
|
|
|
int error = 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
switch (command) {
|
2009-12-07 21:30:54 +00:00
|
|
|
|
2011-04-25 23:34:21 +00:00
|
|
|
case SIOCSIFADDR:
|
|
|
|
#ifdef INET
|
2011-06-02 00:34:57 +00:00
|
|
|
if (ifa->ifa_addr->sa_family == AF_INET)
|
|
|
|
avoid_reset = TRUE;
|
|
|
|
#endif
|
|
|
|
#ifdef INET6
|
|
|
|
if (ifa->ifa_addr->sa_family == AF_INET6)
|
|
|
|
avoid_reset = TRUE;
|
|
|
|
#endif
|
|
|
|
#if defined(INET) || defined(INET6)
|
|
|
|
/*
|
|
|
|
** Calling init results in link renegotiation,
|
|
|
|
** so we avoid doing it when possible.
|
|
|
|
*/
|
|
|
|
if (avoid_reset) {
|
2011-04-25 23:34:21 +00:00
|
|
|
ifp->if_flags |= IFF_UP;
|
2011-06-02 00:34:57 +00:00
|
|
|
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
|
|
|
|
ixgbe_init(adapter);
|
2011-04-25 23:34:21 +00:00
|
|
|
if (!(ifp->if_flags & IFF_NOARP))
|
|
|
|
arp_ifinit(ifp, ifa);
|
|
|
|
} else
|
|
|
|
error = ether_ioctl(ifp, command, data);
|
2011-06-02 00:34:57 +00:00
|
|
|
#endif
|
2012-01-30 16:42:02 +00:00
|
|
|
break;
|
2007-07-11 23:03:16 +00:00
|
|
|
case SIOCSIFMTU:
|
|
|
|
IOCTL_DEBUGOUT("ioctl: SIOCSIFMTU (Set Interface MTU)");
|
|
|
|
if (ifr->ifr_mtu > IXGBE_MAX_FRAME_SIZE - ETHER_HDR_LEN) {
|
|
|
|
error = EINVAL;
|
|
|
|
} else {
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_CORE_LOCK(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
ifp->if_mtu = ifr->ifr_mtu;
|
|
|
|
adapter->max_frame_size =
|
|
|
|
ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
|
2010-06-03 00:00:45 +00:00
|
|
|
ixgbe_init_locked(adapter);
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_CORE_UNLOCK(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case SIOCSIFFLAGS:
|
|
|
|
IOCTL_DEBUGOUT("ioctl: SIOCSIFFLAGS (Set Interface Flags)");
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_CORE_LOCK(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
if (ifp->if_flags & IFF_UP) {
|
2007-07-12 19:04:11 +00:00
|
|
|
if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
|
2007-07-11 23:03:16 +00:00
|
|
|
if ((ifp->if_flags ^ adapter->if_flags) &
|
2008-05-16 18:46:30 +00:00
|
|
|
(IFF_PROMISC | IFF_ALLMULTI)) {
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_set_promisc(adapter);
|
|
|
|
}
|
|
|
|
} else
|
2010-06-03 00:00:45 +00:00
|
|
|
ixgbe_init_locked(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
} else
|
|
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
|
|
ixgbe_stop(adapter);
|
|
|
|
adapter->if_flags = ifp->if_flags;
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_CORE_UNLOCK(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
break;
|
|
|
|
case SIOCADDMULTI:
|
|
|
|
case SIOCDELMULTI:
|
|
|
|
IOCTL_DEBUGOUT("ioctl: SIOC(ADD|DEL)MULTI");
|
|
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_CORE_LOCK(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_disable_intr(adapter);
|
|
|
|
ixgbe_set_multi(adapter);
|
|
|
|
ixgbe_enable_intr(adapter);
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_CORE_UNLOCK(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case SIOCSIFMEDIA:
|
|
|
|
case SIOCGIFMEDIA:
|
|
|
|
IOCTL_DEBUGOUT("ioctl: SIOCxIFMEDIA (Get/Set Interface Media)");
|
|
|
|
error = ifmedia_ioctl(ifp, ifr, &adapter->media, command);
|
|
|
|
break;
|
|
|
|
case SIOCSIFCAP:
|
|
|
|
{
|
|
|
|
int mask = ifr->ifr_reqcap ^ ifp->if_capenable;
|
|
|
|
IOCTL_DEBUGOUT("ioctl: SIOCSIFCAP (Set Capabilities)");
|
|
|
|
if (mask & IFCAP_HWCSUM)
|
|
|
|
ifp->if_capenable ^= IFCAP_HWCSUM;
|
|
|
|
if (mask & IFCAP_TSO4)
|
|
|
|
ifp->if_capenable ^= IFCAP_TSO4;
|
2012-05-25 03:02:56 +00:00
|
|
|
if (mask & IFCAP_TSO6)
|
|
|
|
ifp->if_capenable ^= IFCAP_TSO6;
|
2010-03-27 00:21:40 +00:00
|
|
|
if (mask & IFCAP_LRO)
|
2009-06-24 18:27:07 +00:00
|
|
|
ifp->if_capenable ^= IFCAP_LRO;
|
2007-07-11 23:03:16 +00:00
|
|
|
if (mask & IFCAP_VLAN_HWTAGGING)
|
|
|
|
ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
|
2010-11-26 22:46:32 +00:00
|
|
|
if (mask & IFCAP_VLAN_HWFILTER)
|
|
|
|
ifp->if_capenable ^= IFCAP_VLAN_HWFILTER;
|
2011-06-02 00:34:57 +00:00
|
|
|
if (mask & IFCAP_VLAN_HWTSO)
|
|
|
|
ifp->if_capenable ^= IFCAP_VLAN_HWTSO;
|
2010-03-30 19:09:18 +00:00
|
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
|
|
|
|
IXGBE_CORE_LOCK(adapter);
|
2010-06-03 00:00:45 +00:00
|
|
|
ixgbe_init_locked(adapter);
|
2010-03-30 19:09:18 +00:00
|
|
|
IXGBE_CORE_UNLOCK(adapter);
|
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
VLAN_CAPABILITIES(ifp);
|
|
|
|
break;
|
|
|
|
}
|
2012-11-30 22:41:32 +00:00
|
|
|
case SIOCGI2C:
|
|
|
|
{
|
|
|
|
struct ixgbe_i2c_req i2c;
|
|
|
|
IOCTL_DEBUGOUT("ioctl: SIOCGI2C (Get I2C Data)");
|
|
|
|
error = copyin(ifr->ifr_data, &i2c, sizeof(i2c));
|
|
|
|
if (error)
|
|
|
|
break;
|
|
|
|
if ((i2c.dev_addr != 0xA0) || (i2c.dev_addr != 0xA2)){
|
|
|
|
error = EINVAL;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
hw->phy.ops.read_i2c_byte(hw, i2c.offset,
|
|
|
|
i2c.dev_addr, i2c.data);
|
|
|
|
error = copyout(&i2c, ifr->ifr_data, sizeof(i2c));
|
|
|
|
break;
|
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
default:
|
|
|
|
IOCTL_DEBUGOUT1("ioctl: UNKNOWN (0x%X)\n", (int)command);
|
|
|
|
error = ether_ioctl(ifp, command, data);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return (error);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
* Init entry point
|
|
|
|
*
|
|
|
|
* This routine is used in two ways. It is used by the stack as
|
|
|
|
* init entry point in network interface structure. It is also used
|
|
|
|
* by the driver as a hw/sw initialization routine to get to a
|
|
|
|
* consistent state.
|
|
|
|
*
|
|
|
|
* return 0 on success, positive on failure
|
|
|
|
**********************************************************************/
|
|
|
|
#define IXGBE_MHADD_MFS_SHIFT 16
|
|
|
|
|
2010-06-03 00:00:45 +00:00
|
|
|
static void
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_init_locked(struct adapter *adapter)
|
|
|
|
{
|
|
|
|
struct ifnet *ifp = adapter->ifp;
|
|
|
|
device_t dev = adapter->dev;
|
2010-03-27 00:21:40 +00:00
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
2008-11-26 23:41:18 +00:00
|
|
|
u32 k, txdctl, mhadd, gpie;
|
|
|
|
u32 rxdctl, rxctrl;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
mtx_assert(&adapter->core_mtx, MA_OWNED);
|
2007-07-11 23:03:16 +00:00
|
|
|
INIT_DEBUGOUT("ixgbe_init: begin");
|
2010-03-27 00:21:40 +00:00
|
|
|
hw->adapter_stopped = FALSE;
|
|
|
|
ixgbe_stop_adapter(hw);
|
|
|
|
callout_stop(&adapter->timer);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
/* reprogram the RAR[0] in case user changed it. */
|
|
|
|
ixgbe_set_rar(hw, 0, adapter->hw.mac.addr, 0, IXGBE_RAH_AV);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* Get the latest mac address, User can use a LAA */
|
2009-12-07 21:30:54 +00:00
|
|
|
bcopy(IF_LLADDR(adapter->ifp), hw->mac.addr,
|
2007-07-11 23:03:16 +00:00
|
|
|
IXGBE_ETH_LENGTH_OF_ADDRESS);
|
2009-12-07 21:30:54 +00:00
|
|
|
ixgbe_set_rar(hw, 0, hw->mac.addr, 0, 1);
|
|
|
|
hw->addr_ctrl.rar_used_count = 1;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-11-26 22:46:32 +00:00
|
|
|
/* Set the various hardware offload abilities */
|
|
|
|
ifp->if_hwassist = 0;
|
2012-05-25 03:02:56 +00:00
|
|
|
if (ifp->if_capenable & IFCAP_TSO)
|
2010-11-26 22:46:32 +00:00
|
|
|
ifp->if_hwassist |= CSUM_TSO;
|
|
|
|
if (ifp->if_capenable & IFCAP_TXCSUM) {
|
|
|
|
ifp->if_hwassist |= (CSUM_TCP | CSUM_UDP);
|
|
|
|
#if __FreeBSD_version >= 800000
|
2011-04-25 23:34:21 +00:00
|
|
|
if (hw->mac.type != ixgbe_mac_82598EB)
|
2010-11-26 22:46:32 +00:00
|
|
|
ifp->if_hwassist |= CSUM_SCTP;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* Prepare transmit descriptors and buffers */
|
|
|
|
if (ixgbe_setup_transmit_structures(adapter)) {
|
|
|
|
device_printf(dev,"Could not setup transmit structures\n");
|
|
|
|
ixgbe_stop(adapter);
|
2010-06-03 00:00:45 +00:00
|
|
|
return;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2011-01-19 19:36:27 +00:00
|
|
|
ixgbe_init_hw(hw);
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_initialize_transmit_units(adapter);
|
|
|
|
|
|
|
|
/* Setup Multicast table */
|
|
|
|
ixgbe_set_multi(adapter);
|
|
|
|
|
|
|
|
/*
|
2008-11-26 23:41:18 +00:00
|
|
|
** Determine the correct mbuf pool
|
2012-11-30 22:19:18 +00:00
|
|
|
** for doing jumbo frames
|
2007-07-11 23:03:16 +00:00
|
|
|
*/
|
2010-11-26 22:46:32 +00:00
|
|
|
if (adapter->max_frame_size <= 2048)
|
|
|
|
adapter->rx_mbuf_sz = MCLBYTES;
|
|
|
|
else if (adapter->max_frame_size <= 4096)
|
2008-11-26 23:41:18 +00:00
|
|
|
adapter->rx_mbuf_sz = MJUMPAGESIZE;
|
2011-01-19 19:36:27 +00:00
|
|
|
else if (adapter->max_frame_size <= 9216)
|
2010-11-26 22:46:32 +00:00
|
|
|
adapter->rx_mbuf_sz = MJUM9BYTES;
|
2011-01-19 19:36:27 +00:00
|
|
|
else
|
|
|
|
adapter->rx_mbuf_sz = MJUM16BYTES;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* Prepare receive descriptors and buffers */
|
|
|
|
if (ixgbe_setup_receive_structures(adapter)) {
|
|
|
|
device_printf(dev,"Could not setup receive structures\n");
|
|
|
|
ixgbe_stop(adapter);
|
2010-06-03 00:00:45 +00:00
|
|
|
return;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Configure RX settings */
|
|
|
|
ixgbe_initialize_receive_units(adapter);
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
gpie = IXGBE_READ_REG(&adapter->hw, IXGBE_GPIE);
|
2008-11-26 23:41:18 +00:00
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
/* Enable Fan Failure Interrupt */
|
2011-04-25 23:34:21 +00:00
|
|
|
gpie |= IXGBE_SDP1_GPIEN;
|
|
|
|
|
2012-01-30 16:42:02 +00:00
|
|
|
/* Add for Module detection */
|
2011-04-25 23:34:21 +00:00
|
|
|
if (hw->mac.type == ixgbe_mac_82599EB)
|
|
|
|
gpie |= IXGBE_SDP2_GPIEN;
|
2008-11-26 23:41:18 +00:00
|
|
|
|
2012-01-30 16:42:02 +00:00
|
|
|
/* Thermal Failure Detection */
|
|
|
|
if (hw->mac.type == ixgbe_mac_X540)
|
|
|
|
gpie |= IXGBE_SDP0_GPIEN;
|
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
if (adapter->msix > 1) {
|
2008-05-16 18:46:30 +00:00
|
|
|
/* Enable Enhanced MSIX mode */
|
2007-07-11 23:03:16 +00:00
|
|
|
gpie |= IXGBE_GPIE_MSIX_MODE;
|
|
|
|
gpie |= IXGBE_GPIE_EIAME | IXGBE_GPIE_PBA_SUPPORT |
|
|
|
|
IXGBE_GPIE_OCD;
|
|
|
|
}
|
2009-12-07 21:30:54 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* Set MTU size */
|
|
|
|
if (ifp->if_mtu > ETHERMTU) {
|
2009-12-07 21:30:54 +00:00
|
|
|
mhadd = IXGBE_READ_REG(hw, IXGBE_MHADD);
|
2007-07-11 23:03:16 +00:00
|
|
|
mhadd &= ~IXGBE_MHADD_MFS_MASK;
|
|
|
|
mhadd |= adapter->max_frame_size << IXGBE_MHADD_MFS_SHIFT;
|
2009-12-07 21:30:54 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_MHADD, mhadd);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Now enable all the queues */
|
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
for (int i = 0; i < adapter->num_queues; i++) {
|
2009-12-07 21:30:54 +00:00
|
|
|
txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i));
|
2007-07-11 23:03:16 +00:00
|
|
|
txdctl |= IXGBE_TXDCTL_ENABLE;
|
2008-05-16 18:46:30 +00:00
|
|
|
/* Set WTHRESH to 8, burst writeback */
|
|
|
|
txdctl |= (8 << 16);
|
2012-04-11 15:02:14 +00:00
|
|
|
/*
|
|
|
|
* When the internal queue falls below PTHRESH (32),
|
|
|
|
* start prefetching as long as there are at least
|
|
|
|
* HTHRESH (1) buffers ready. The values are taken
|
|
|
|
* from the Intel linux driver 3.8.21.
|
|
|
|
* Prefetching enables tx line rate even with 1 queue.
|
|
|
|
*/
|
2012-06-07 22:57:26 +00:00
|
|
|
txdctl |= (32 << 0) | (1 << 8);
|
2009-12-07 21:30:54 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(i), txdctl);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
for (int i = 0; i < adapter->num_queues; i++) {
|
2009-12-07 21:30:54 +00:00
|
|
|
rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
|
|
|
|
if (hw->mac.type == ixgbe_mac_82598EB) {
|
|
|
|
/*
|
|
|
|
** PTHRESH = 21
|
|
|
|
** HTHRESH = 4
|
|
|
|
** WTHRESH = 8
|
|
|
|
*/
|
|
|
|
rxdctl &= ~0x3FFFFF;
|
|
|
|
rxdctl |= 0x080420;
|
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
rxdctl |= IXGBE_RXDCTL_ENABLE;
|
2009-12-07 21:30:54 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(i), rxdctl);
|
2008-11-26 23:41:18 +00:00
|
|
|
for (k = 0; k < 10; k++) {
|
|
|
|
if (IXGBE_READ_REG(hw, IXGBE_RXDCTL(i)) &
|
|
|
|
IXGBE_RXDCTL_ENABLE)
|
|
|
|
break;
|
|
|
|
else
|
|
|
|
msec_delay(1);
|
|
|
|
}
|
|
|
|
wmb();
|
2012-01-19 09:36:19 +00:00
|
|
|
#ifdef DEV_NETMAP
|
|
|
|
/*
|
|
|
|
* In netmap mode, we must preserve the buffers made
|
|
|
|
* available to userspace before the if_init()
|
|
|
|
* (this is true by default on the TX side, because
|
|
|
|
* init makes all buffers available to userspace).
|
|
|
|
*
|
|
|
|
* netmap_reset() and the device specific routines
|
|
|
|
* (e.g. ixgbe_setup_receive_rings()) map these
|
|
|
|
* buffers at the end of the NIC ring, so here we
|
|
|
|
* must set the RDT (tail) register to make sure
|
|
|
|
* they are not overwritten.
|
|
|
|
*
|
|
|
|
* In this driver the NIC ring starts at RDH = 0,
|
|
|
|
* RDT points to the last slot available for reception (?),
|
|
|
|
* so RDT = num_rx_desc - 1 means the whole ring is available.
|
|
|
|
*/
|
|
|
|
if (ifp->if_capenable & IFCAP_NETMAP) {
|
|
|
|
struct netmap_adapter *na = NA(adapter->ifp);
|
|
|
|
struct netmap_kring *kring = &na->rx_rings[i];
|
|
|
|
int t = na->num_rx_desc - 1 - kring->nr_hwavail;
|
|
|
|
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RDT(i), t);
|
|
|
|
} else
|
|
|
|
#endif /* DEV_NETMAP */
|
2008-11-26 23:41:18 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RDT(i), adapter->num_rx_desc - 1);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2010-11-26 22:46:32 +00:00
|
|
|
/* Set up VLAN support and filter */
|
2009-06-24 18:27:07 +00:00
|
|
|
ixgbe_setup_vlan_hw_support(adapter);
|
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
/* Enable Receive engine */
|
|
|
|
rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
|
2009-12-07 21:30:54 +00:00
|
|
|
if (hw->mac.type == ixgbe_mac_82598EB)
|
2008-11-26 23:41:18 +00:00
|
|
|
rxctrl |= IXGBE_RXCTRL_DMBYPS;
|
|
|
|
rxctrl |= IXGBE_RXCTRL_RXEN;
|
2010-03-27 00:21:40 +00:00
|
|
|
ixgbe_enable_rx_dma(hw, rxctrl);
|
2008-11-26 23:41:18 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
callout_reset(&adapter->timer, hz, ixgbe_local_timer, adapter);
|
|
|
|
|
|
|
|
/* Set up MSI/X routing */
|
2010-05-19 00:03:48 +00:00
|
|
|
if (ixgbe_enable_msix) {
|
2008-11-26 23:41:18 +00:00
|
|
|
ixgbe_configure_ivars(adapter);
|
2010-05-19 00:03:48 +00:00
|
|
|
/* Set up auto-mask */
|
|
|
|
if (hw->mac.type == ixgbe_mac_82598EB)
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE);
|
|
|
|
else {
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(0), 0xFFFFFFFF);
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(1), 0xFFFFFFFF);
|
|
|
|
}
|
|
|
|
} else { /* Simple settings for Legacy/MSI */
|
2009-04-10 00:22:48 +00:00
|
|
|
ixgbe_set_ivar(adapter, 0, 0, 0);
|
|
|
|
ixgbe_set_ivar(adapter, 0, 0, 1);
|
2010-05-19 00:03:48 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE);
|
2009-04-10 00:22:48 +00:00
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
#ifdef IXGBE_FDIR
|
|
|
|
/* Init Flow director */
|
2012-01-30 16:42:02 +00:00
|
|
|
if (hw->mac.type != ixgbe_mac_82598EB) {
|
2012-07-05 20:51:44 +00:00
|
|
|
u32 hdrm = 32 << fdir_pballoc;
|
2012-01-30 16:42:02 +00:00
|
|
|
|
|
|
|
hw->mac.ops.setup_rxpba(hw, 0, hdrm, PBA_STRATEGY_EQUAL);
|
2009-12-07 21:30:54 +00:00
|
|
|
ixgbe_init_fdir_signature_82599(&adapter->hw, fdir_pballoc);
|
2012-01-30 16:42:02 +00:00
|
|
|
}
|
2009-12-07 21:30:54 +00:00
|
|
|
#endif
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2009-04-10 00:22:48 +00:00
|
|
|
/*
|
|
|
|
** Check on any SFP devices that
|
|
|
|
** need to be kick-started
|
|
|
|
*/
|
2010-03-30 19:09:18 +00:00
|
|
|
if (hw->phy.type == ixgbe_phy_none) {
|
|
|
|
int err = hw->phy.ops.identify(hw);
|
|
|
|
if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) {
|
|
|
|
device_printf(dev,
|
|
|
|
"Unsupported SFP+ module type was detected.\n");
|
2010-06-03 00:00:45 +00:00
|
|
|
return;
|
2010-03-30 19:09:18 +00:00
|
|
|
}
|
|
|
|
}
|
2009-12-07 21:30:54 +00:00
|
|
|
|
2010-05-14 22:00:37 +00:00
|
|
|
/* Set moderation on the Link interrupt */
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EITR(adapter->linkvec), IXGBE_LINK_ITR);
|
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
/* Config/Enable Link */
|
|
|
|
ixgbe_config_link(adapter);
|
|
|
|
|
2012-07-05 20:51:44 +00:00
|
|
|
/* Hardware Packet Buffer & Flow Control setup */
|
|
|
|
{
|
|
|
|
u32 rxpb, frame, size, tmp;
|
|
|
|
|
|
|
|
frame = adapter->max_frame_size;
|
|
|
|
|
|
|
|
/* Calculate High Water */
|
|
|
|
if (hw->mac.type == ixgbe_mac_X540)
|
|
|
|
tmp = IXGBE_DV_X540(frame, frame);
|
|
|
|
else
|
|
|
|
tmp = IXGBE_DV(frame, frame);
|
|
|
|
size = IXGBE_BT2KB(tmp);
|
|
|
|
rxpb = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(0)) >> 10;
|
|
|
|
hw->fc.high_water[0] = rxpb - size;
|
|
|
|
|
|
|
|
/* Now calculate Low Water */
|
|
|
|
if (hw->mac.type == ixgbe_mac_X540)
|
|
|
|
tmp = IXGBE_LOW_DV_X540(frame);
|
|
|
|
else
|
|
|
|
tmp = IXGBE_LOW_DV(frame);
|
|
|
|
hw->fc.low_water[0] = IXGBE_BT2KB(tmp);
|
|
|
|
|
|
|
|
adapter->fc = hw->fc.requested_mode = ixgbe_fc_full;
|
|
|
|
hw->fc.pause_time = IXGBE_FC_PAUSE;
|
|
|
|
hw->fc.send_xon = TRUE;
|
|
|
|
}
|
|
|
|
/* Initialize the FC settings */
|
|
|
|
ixgbe_start_hw(hw);
|
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
/* And now turn on interrupts */
|
|
|
|
ixgbe_enable_intr(adapter);
|
2009-04-10 00:22:48 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* Now inform the stack we're ready */
|
|
|
|
ifp->if_drv_flags |= IFF_DRV_RUNNING;
|
|
|
|
|
2010-06-03 00:00:45 +00:00
|
|
|
return;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
ixgbe_init(void *arg)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = arg;
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_CORE_LOCK(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_init_locked(adapter);
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_CORE_UNLOCK(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
/*
|
2009-06-24 18:27:07 +00:00
|
|
|
**
|
|
|
|
** MSIX Interrupt Handlers and Tasklets
|
|
|
|
**
|
2008-05-16 18:46:30 +00:00
|
|
|
*/
|
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
static inline void
|
|
|
|
ixgbe_enable_queue(struct adapter *adapter, u32 vector)
|
|
|
|
{
|
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
|
|
|
u64 queue = (u64)(1 << vector);
|
|
|
|
u32 mask;
|
|
|
|
|
|
|
|
if (hw->mac.type == ixgbe_mac_82598EB) {
|
|
|
|
mask = (IXGBE_EIMS_RTX_QUEUE & queue);
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EIMS, mask);
|
|
|
|
} else {
|
|
|
|
mask = (queue & 0xFFFFFFFF);
|
|
|
|
if (mask)
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(0), mask);
|
|
|
|
mask = (queue >> 32);
|
|
|
|
if (mask)
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(1), mask);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void
|
|
|
|
ixgbe_disable_queue(struct adapter *adapter, u32 vector)
|
|
|
|
{
|
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
|
|
|
u64 queue = (u64)(1 << vector);
|
|
|
|
u32 mask;
|
|
|
|
|
|
|
|
if (hw->mac.type == ixgbe_mac_82598EB) {
|
|
|
|
mask = (IXGBE_EIMS_RTX_QUEUE & queue);
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EIMC, mask);
|
|
|
|
} else {
|
|
|
|
mask = (queue & 0xFFFFFFFF);
|
|
|
|
if (mask)
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(0), mask);
|
|
|
|
mask = (queue >> 32);
|
|
|
|
if (mask)
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(1), mask);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void
|
2009-12-07 21:30:54 +00:00
|
|
|
ixgbe_rearm_queues(struct adapter *adapter, u64 queues)
|
2009-06-24 18:27:07 +00:00
|
|
|
{
|
|
|
|
u32 mask;
|
|
|
|
|
|
|
|
if (adapter->hw.mac.type == ixgbe_mac_82598EB) {
|
|
|
|
mask = (IXGBE_EIMS_RTX_QUEUE & queues);
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, mask);
|
|
|
|
} else {
|
|
|
|
mask = (queues & 0xFFFFFFFF);
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(0), mask);
|
|
|
|
mask = (queues >> 32);
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(1), mask);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
|
|
|
|
static void
|
2010-03-27 00:21:40 +00:00
|
|
|
ixgbe_handle_que(void *context, int pending)
|
2008-05-16 18:46:30 +00:00
|
|
|
{
|
2010-03-27 00:21:40 +00:00
|
|
|
struct ix_queue *que = context;
|
|
|
|
struct adapter *adapter = que->adapter;
|
|
|
|
struct tx_ring *txr = que->txr;
|
2008-05-16 18:46:30 +00:00
|
|
|
struct ifnet *ifp = adapter->ifp;
|
2010-04-16 16:33:05 +00:00
|
|
|
bool more;
|
2008-11-26 23:41:18 +00:00
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
|
2010-04-16 16:33:05 +00:00
|
|
|
more = ixgbe_rxeof(que, adapter->rx_process_limit);
|
|
|
|
IXGBE_TX_LOCK(txr);
|
|
|
|
ixgbe_txeof(txr);
|
2009-06-24 18:27:07 +00:00
|
|
|
#if __FreeBSD_version >= 800000
|
|
|
|
if (!drbr_empty(ifp, txr->br))
|
|
|
|
ixgbe_mq_start_locked(ifp, txr, NULL);
|
|
|
|
#else
|
|
|
|
if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
|
|
|
|
ixgbe_start_locked(txr, ifp);
|
|
|
|
#endif
|
2010-04-16 16:33:05 +00:00
|
|
|
IXGBE_TX_UNLOCK(txr);
|
2012-06-05 18:48:02 +00:00
|
|
|
if (more) {
|
2010-04-16 16:33:05 +00:00
|
|
|
taskqueue_enqueue(que->tq, &que->que_task);
|
|
|
|
return;
|
|
|
|
}
|
2009-06-24 18:27:07 +00:00
|
|
|
}
|
2008-11-26 23:41:18 +00:00
|
|
|
|
|
|
|
/* Reenable this interrupt */
|
2010-03-27 00:21:40 +00:00
|
|
|
ixgbe_enable_queue(adapter, que->msix);
|
2010-04-16 16:33:05 +00:00
|
|
|
return;
|
2007-09-04 02:31:35 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Legacy Interrupt Service routine
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
|
|
|
|
static void
|
2008-05-16 18:46:30 +00:00
|
|
|
ixgbe_legacy_irq(void *arg)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
2010-03-27 00:21:40 +00:00
|
|
|
struct ix_queue *que = arg;
|
|
|
|
struct adapter *adapter = que->adapter;
|
2008-11-26 23:41:18 +00:00
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
2008-05-16 18:46:30 +00:00
|
|
|
struct tx_ring *txr = adapter->tx_rings;
|
2010-03-27 00:21:40 +00:00
|
|
|
bool more_tx, more_rx;
|
2009-04-10 00:22:48 +00:00
|
|
|
u32 reg_eicr, loop = MAX_LOOP;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
|
|
|
|
reg_eicr = IXGBE_READ_REG(hw, IXGBE_EICR);
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
++que->irqs;
|
2008-11-26 23:41:18 +00:00
|
|
|
if (reg_eicr == 0) {
|
|
|
|
ixgbe_enable_intr(adapter);
|
2008-05-16 18:46:30 +00:00
|
|
|
return;
|
2008-11-26 23:41:18 +00:00
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
more_rx = ixgbe_rxeof(que, adapter->rx_process_limit);
|
2009-04-10 00:22:48 +00:00
|
|
|
|
|
|
|
IXGBE_TX_LOCK(txr);
|
|
|
|
do {
|
2010-03-27 00:21:40 +00:00
|
|
|
more_tx = ixgbe_txeof(txr);
|
|
|
|
} while (loop-- && more_tx);
|
2009-04-10 00:22:48 +00:00
|
|
|
IXGBE_TX_UNLOCK(txr);
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
if (more_rx || more_tx)
|
|
|
|
taskqueue_enqueue(que->tq, &que->que_task);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
/* Check for fan failure */
|
|
|
|
if ((hw->phy.media_type == ixgbe_media_type_copper) &&
|
|
|
|
(reg_eicr & IXGBE_EICR_GPI_SDP1)) {
|
|
|
|
device_printf(adapter->dev, "\nCRITICAL: FAN FAILURE!! "
|
|
|
|
"REPLACE IMMEDIATELY!!\n");
|
2008-11-26 23:41:18 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EICR_GPI_SDP1);
|
2008-05-16 18:46:30 +00:00
|
|
|
}
|
2008-11-26 23:41:18 +00:00
|
|
|
|
2007-09-04 02:31:35 +00:00
|
|
|
/* Link status change */
|
2010-03-27 00:21:40 +00:00
|
|
|
if (reg_eicr & IXGBE_EICR_LSC)
|
|
|
|
taskqueue_enqueue(adapter->tq, &adapter->link_task);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
ixgbe_enable_intr(adapter);
|
2008-05-16 18:46:30 +00:00
|
|
|
return;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
2011-06-02 00:34:57 +00:00
|
|
|
* MSIX Queue Interrupt Service routine
|
2007-07-11 23:03:16 +00:00
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
void
|
2010-03-27 00:21:40 +00:00
|
|
|
ixgbe_msix_que(void *arg)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
2010-03-27 00:21:40 +00:00
|
|
|
struct ix_queue *que = arg;
|
|
|
|
struct adapter *adapter = que->adapter;
|
|
|
|
struct tx_ring *txr = que->txr;
|
|
|
|
struct rx_ring *rxr = que->rxr;
|
|
|
|
bool more_tx, more_rx;
|
|
|
|
u32 newitr = 0;
|
|
|
|
|
2012-01-30 16:42:02 +00:00
|
|
|
ixgbe_disable_queue(adapter, que->msix);
|
2010-03-27 00:21:40 +00:00
|
|
|
++que->irqs;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
more_rx = ixgbe_rxeof(que, adapter->rx_process_limit);
|
2009-04-10 00:22:48 +00:00
|
|
|
|
2008-07-30 18:15:18 +00:00
|
|
|
IXGBE_TX_LOCK(txr);
|
2010-03-27 00:21:40 +00:00
|
|
|
more_tx = ixgbe_txeof(txr);
|
2011-06-02 00:34:57 +00:00
|
|
|
/*
|
|
|
|
** Make certain that if the stack
|
|
|
|
** has anything queued the task gets
|
|
|
|
** scheduled to handle it.
|
|
|
|
*/
|
|
|
|
#if __FreeBSD_version < 800000
|
|
|
|
if (!IFQ_DRV_IS_EMPTY(&adapter->ifp->if_snd))
|
|
|
|
#else
|
|
|
|
if (!drbr_empty(adapter->ifp, txr->br))
|
|
|
|
#endif
|
|
|
|
more_tx = 1;
|
2008-07-30 18:15:18 +00:00
|
|
|
IXGBE_TX_UNLOCK(txr);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
/* Do AIM now? */
|
2009-04-10 00:22:48 +00:00
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
if (ixgbe_enable_aim == FALSE)
|
|
|
|
goto no_calc;
|
|
|
|
/*
|
|
|
|
** Do Adaptive Interrupt Moderation:
|
|
|
|
** - Write out last calculated setting
|
|
|
|
** - Calculate based on average size over
|
|
|
|
** the last interval.
|
|
|
|
*/
|
|
|
|
if (que->eitr_setting)
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw,
|
|
|
|
IXGBE_EITR(que->msix), que->eitr_setting);
|
|
|
|
|
|
|
|
que->eitr_setting = 0;
|
|
|
|
|
|
|
|
/* Idle, do nothing */
|
|
|
|
if ((txr->bytes == 0) && (rxr->bytes == 0))
|
|
|
|
goto no_calc;
|
|
|
|
|
|
|
|
if ((txr->bytes) && (txr->packets))
|
|
|
|
newitr = txr->bytes/txr->packets;
|
|
|
|
if ((rxr->bytes) && (rxr->packets))
|
|
|
|
newitr = max(newitr,
|
|
|
|
(rxr->bytes / rxr->packets));
|
|
|
|
newitr += 24; /* account for hardware frame, crc */
|
|
|
|
|
|
|
|
/* set an upper boundary */
|
|
|
|
newitr = min(newitr, 3000);
|
|
|
|
|
|
|
|
/* Be nice to the mid range */
|
|
|
|
if ((newitr > 300) && (newitr < 1200))
|
|
|
|
newitr = (newitr / 3);
|
2008-11-26 23:41:18 +00:00
|
|
|
else
|
2010-03-27 00:21:40 +00:00
|
|
|
newitr = (newitr / 2);
|
|
|
|
|
|
|
|
if (adapter->hw.mac.type == ixgbe_mac_82598EB)
|
|
|
|
newitr |= newitr << 16;
|
|
|
|
else
|
|
|
|
newitr |= IXGBE_EITR_CNT_WDIS;
|
|
|
|
|
|
|
|
/* save for next interrupt */
|
|
|
|
que->eitr_setting = newitr;
|
|
|
|
|
|
|
|
/* Reset state */
|
|
|
|
txr->bytes = 0;
|
|
|
|
txr->packets = 0;
|
|
|
|
rxr->bytes = 0;
|
|
|
|
rxr->packets = 0;
|
|
|
|
|
|
|
|
no_calc:
|
|
|
|
if (more_tx || more_rx)
|
|
|
|
taskqueue_enqueue(que->tq, &que->que_task);
|
|
|
|
else /* Reenable this interrupt */
|
|
|
|
ixgbe_enable_queue(adapter, que->msix);
|
2008-05-16 18:46:30 +00:00
|
|
|
return;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2009-04-10 00:22:48 +00:00
|
|
|
|
|
|
|
static void
|
|
|
|
ixgbe_msix_link(void *arg)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = arg;
|
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
|
|
|
u32 reg_eicr;
|
|
|
|
|
|
|
|
++adapter->link_irq;
|
|
|
|
|
|
|
|
/* First get the cause */
|
|
|
|
reg_eicr = IXGBE_READ_REG(hw, IXGBE_EICS);
|
2009-06-24 18:27:07 +00:00
|
|
|
/* Clear interrupt with write */
|
2009-04-10 00:22:48 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EICR, reg_eicr);
|
|
|
|
|
|
|
|
/* Link status change */
|
|
|
|
if (reg_eicr & IXGBE_EICR_LSC)
|
|
|
|
taskqueue_enqueue(adapter->tq, &adapter->link_task);
|
|
|
|
|
2011-04-25 23:34:21 +00:00
|
|
|
if (adapter->hw.mac.type != ixgbe_mac_82598EB) {
|
2009-12-07 21:30:54 +00:00
|
|
|
#ifdef IXGBE_FDIR
|
|
|
|
if (reg_eicr & IXGBE_EICR_FLOW_DIR) {
|
|
|
|
/* This is probably overkill :) */
|
|
|
|
if (!atomic_cmpset_int(&adapter->fdir_reinit, 0, 1))
|
|
|
|
return;
|
2012-07-05 20:51:44 +00:00
|
|
|
/* Disable the interrupt */
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EICR_FLOW_DIR);
|
2009-12-07 21:30:54 +00:00
|
|
|
taskqueue_enqueue(adapter->tq, &adapter->fdir_task);
|
|
|
|
} else
|
|
|
|
#endif
|
2009-04-10 00:22:48 +00:00
|
|
|
if (reg_eicr & IXGBE_EICR_ECC) {
|
|
|
|
device_printf(adapter->dev, "\nCRITICAL: ECC ERROR!! "
|
|
|
|
"Please Reboot!!\n");
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_ECC);
|
2009-12-07 21:30:54 +00:00
|
|
|
} else
|
|
|
|
|
|
|
|
if (reg_eicr & IXGBE_EICR_GPI_SDP1) {
|
2009-04-10 00:22:48 +00:00
|
|
|
/* Clear the interrupt */
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1);
|
|
|
|
taskqueue_enqueue(adapter->tq, &adapter->msf_task);
|
|
|
|
} else if (reg_eicr & IXGBE_EICR_GPI_SDP2) {
|
|
|
|
/* Clear the interrupt */
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP2);
|
|
|
|
taskqueue_enqueue(adapter->tq, &adapter->mod_task);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Check for fan failure */
|
|
|
|
if ((hw->device_id == IXGBE_DEV_ID_82598AT) &&
|
|
|
|
(reg_eicr & IXGBE_EICR_GPI_SDP1)) {
|
|
|
|
device_printf(adapter->dev, "\nCRITICAL: FAN FAILURE!! "
|
|
|
|
"REPLACE IMMEDIATELY!!\n");
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1);
|
|
|
|
}
|
|
|
|
|
2012-01-30 16:42:02 +00:00
|
|
|
/* Check for over temp condition */
|
|
|
|
if ((hw->mac.type == ixgbe_mac_X540) &&
|
|
|
|
(reg_eicr & IXGBE_EICR_GPI_SDP0)) {
|
|
|
|
device_printf(adapter->dev, "\nCRITICAL: OVER TEMP!! "
|
|
|
|
"PHY IS SHUT DOWN!!\n");
|
|
|
|
device_printf(adapter->dev, "System shutdown required\n");
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP0);
|
|
|
|
}
|
|
|
|
|
2009-04-10 00:22:48 +00:00
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, IXGBE_EIMS_OTHER);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Media Ioctl callback
|
|
|
|
*
|
|
|
|
* This routine is called whenever the user queries the status of
|
|
|
|
* the interface using ifconfig.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static void
|
|
|
|
ixgbe_media_status(struct ifnet * ifp, struct ifmediareq * ifmr)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = ifp->if_softc;
|
|
|
|
|
|
|
|
INIT_DEBUGOUT("ixgbe_media_status: begin");
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_CORE_LOCK(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_update_link_status(adapter);
|
|
|
|
|
|
|
|
ifmr->ifm_status = IFM_AVALID;
|
|
|
|
ifmr->ifm_active = IFM_ETHER;
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
if (!adapter->link_active) {
|
|
|
|
IXGBE_CORE_UNLOCK(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
return;
|
2008-05-16 18:46:30 +00:00
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
ifmr->ifm_status |= IFM_ACTIVE;
|
2008-05-16 18:46:30 +00:00
|
|
|
|
|
|
|
switch (adapter->link_speed) {
|
2012-01-30 16:42:02 +00:00
|
|
|
case IXGBE_LINK_SPEED_100_FULL:
|
|
|
|
ifmr->ifm_active |= IFM_100_TX | IFM_FDX;
|
|
|
|
break;
|
2008-05-16 18:46:30 +00:00
|
|
|
case IXGBE_LINK_SPEED_1GB_FULL:
|
A few important fixes:
- Testing TSO6 has led me to discover that HW RSC is
a problematic feature, it is ONLY designed to work
with IPv4 in the first place, and if IP forwarding
is done it can't be disabled as LRO in the stack,
also initial testing we've done at Intel shows an
equal performance using TSO[46] on the TX and LRO
on RX, if you ran older code on 82599 or later hardware
you actually could have detrimental performance for
this reason. So I am disabling the feature by default
and all our adapters will now use LRO instead.
- If you have flow control off and multiple queues it
was possible when the buffer of one queue becomes
full that all RX movement is stalled, to eliminate
this problem a feature bit is now set that will allow
packets to be dropped when full rather than stall.
Note, the default is to have flow control on, and this
keeps this from happening.
- Because of the recent fixes in the stack, LRO is now
auto-disabled when problematic, so I have decided to
enable it by default in the capabilities in the driver.
- There are some 1G modules used by some customers, a couple
small tweaks to properly support those in the media code.
- A note: we have now done some testing of TSO6 and using
LRO with IPv6 and it all works great!! Seeing line rate
in both directions in best cases. Thanks bz for your
excellent work!!
2012-10-31 23:50:36 +00:00
|
|
|
ifmr->ifm_active |= adapter->optics | IFM_FDX;
|
2008-05-16 18:46:30 +00:00
|
|
|
break;
|
|
|
|
case IXGBE_LINK_SPEED_10GB_FULL:
|
2008-11-26 23:41:18 +00:00
|
|
|
ifmr->ifm_active |= adapter->optics | IFM_FDX;
|
2008-05-16 18:46:30 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
IXGBE_CORE_UNLOCK(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Media Ioctl callback
|
|
|
|
*
|
|
|
|
* This routine is called when the user changes speed/duplex using
|
|
|
|
* media/mediopt option with ifconfig.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static int
|
|
|
|
ixgbe_media_change(struct ifnet * ifp)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = ifp->if_softc;
|
|
|
|
struct ifmedia *ifm = &adapter->media;
|
|
|
|
|
|
|
|
INIT_DEBUGOUT("ixgbe_media_change: begin");
|
|
|
|
|
|
|
|
if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
|
|
|
|
return (EINVAL);
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
switch (IFM_SUBTYPE(ifm->ifm_media)) {
|
|
|
|
case IFM_AUTO:
|
|
|
|
adapter->hw.phy.autoneg_advertised =
|
2012-01-30 16:42:02 +00:00
|
|
|
IXGBE_LINK_SPEED_100_FULL |
|
|
|
|
IXGBE_LINK_SPEED_1GB_FULL |
|
|
|
|
IXGBE_LINK_SPEED_10GB_FULL;
|
2008-05-16 18:46:30 +00:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
device_printf(adapter->dev, "Only auto media type\n");
|
|
|
|
return (EINVAL);
|
|
|
|
}
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
2010-03-27 00:21:40 +00:00
|
|
|
* This routine maps the mbufs to tx descriptors, allowing the
|
|
|
|
* TX engine to transmit the packets.
|
|
|
|
* - return 0 on success, positive on failure
|
2007-07-11 23:03:16 +00:00
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
|
|
|
|
static int
|
2008-05-16 18:46:30 +00:00
|
|
|
ixgbe_xmit(struct tx_ring *txr, struct mbuf **m_headp)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
2008-05-16 18:46:30 +00:00
|
|
|
struct adapter *adapter = txr->adapter;
|
2009-04-10 00:22:48 +00:00
|
|
|
u32 olinfo_status = 0, cmd_type_len;
|
2008-11-26 23:41:18 +00:00
|
|
|
u32 paylen = 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
int i, j, error, nsegs;
|
2009-06-24 18:27:07 +00:00
|
|
|
int first, last = 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
struct mbuf *m_head;
|
2011-01-19 19:36:27 +00:00
|
|
|
bus_dma_segment_t segs[adapter->num_segs];
|
2007-07-11 23:03:16 +00:00
|
|
|
bus_dmamap_t map;
|
2011-06-02 00:34:57 +00:00
|
|
|
struct ixgbe_tx_buf *txbuf;
|
2007-07-11 23:03:16 +00:00
|
|
|
union ixgbe_adv_tx_desc *txd = NULL;
|
|
|
|
|
|
|
|
m_head = *m_headp;
|
|
|
|
|
|
|
|
/* Basic descriptor defines */
|
2009-04-10 00:22:48 +00:00
|
|
|
cmd_type_len = (IXGBE_ADVTXD_DTYP_DATA |
|
|
|
|
IXGBE_ADVTXD_DCMD_IFCS | IXGBE_ADVTXD_DCMD_DEXT);
|
2007-09-04 02:31:35 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
if (m_head->m_flags & M_VLANTAG)
|
|
|
|
cmd_type_len |= IXGBE_ADVTXD_DCMD_VLE;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Important to capture the first descriptor
|
|
|
|
* used because it will contain the index of
|
|
|
|
* the one we tell the hardware to report back
|
|
|
|
*/
|
2009-12-07 21:30:54 +00:00
|
|
|
first = txr->next_avail_desc;
|
2007-07-11 23:03:16 +00:00
|
|
|
txbuf = &txr->tx_buffers[first];
|
|
|
|
map = txbuf->map;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Map the packet for DMA.
|
|
|
|
*/
|
|
|
|
error = bus_dmamap_load_mbuf_sg(txr->txtag, map,
|
|
|
|
*m_headp, segs, &nsegs, BUS_DMA_NOWAIT);
|
|
|
|
|
|
|
|
if (error == EFBIG) {
|
|
|
|
struct mbuf *m;
|
|
|
|
|
|
|
|
m = m_defrag(*m_headp, M_DONTWAIT);
|
|
|
|
if (m == NULL) {
|
2008-11-26 23:41:18 +00:00
|
|
|
adapter->mbuf_defrag_failed++;
|
2007-07-11 23:03:16 +00:00
|
|
|
m_freem(*m_headp);
|
|
|
|
*m_headp = NULL;
|
|
|
|
return (ENOBUFS);
|
|
|
|
}
|
|
|
|
*m_headp = m;
|
|
|
|
|
|
|
|
/* Try it again */
|
|
|
|
error = bus_dmamap_load_mbuf_sg(txr->txtag, map,
|
|
|
|
*m_headp, segs, &nsegs, BUS_DMA_NOWAIT);
|
|
|
|
|
|
|
|
if (error == ENOMEM) {
|
|
|
|
adapter->no_tx_dma_setup++;
|
|
|
|
return (error);
|
|
|
|
} else if (error != 0) {
|
|
|
|
adapter->no_tx_dma_setup++;
|
|
|
|
m_freem(*m_headp);
|
|
|
|
*m_headp = NULL;
|
|
|
|
return (error);
|
|
|
|
}
|
|
|
|
} else if (error == ENOMEM) {
|
|
|
|
adapter->no_tx_dma_setup++;
|
|
|
|
return (error);
|
|
|
|
} else if (error != 0) {
|
|
|
|
adapter->no_tx_dma_setup++;
|
|
|
|
m_freem(*m_headp);
|
|
|
|
*m_headp = NULL;
|
|
|
|
return (error);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Make certain there are enough descriptors */
|
|
|
|
if (nsegs > txr->tx_avail - 2) {
|
2010-03-27 00:21:40 +00:00
|
|
|
txr->no_desc_avail++;
|
2007-07-11 23:03:16 +00:00
|
|
|
error = ENOBUFS;
|
2008-05-16 18:46:30 +00:00
|
|
|
goto xmit_fail;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
m_head = *m_headp;
|
|
|
|
|
|
|
|
/*
|
2009-04-10 00:22:48 +00:00
|
|
|
** Set up the appropriate offload context
|
2007-07-11 23:03:16 +00:00
|
|
|
** this becomes the first descriptor of
|
|
|
|
** a packet.
|
|
|
|
*/
|
2009-04-10 00:22:48 +00:00
|
|
|
if (m_head->m_pkthdr.csum_flags & CSUM_TSO) {
|
2012-05-25 03:02:56 +00:00
|
|
|
if (ixgbe_tso_setup(txr, m_head, &paylen, &olinfo_status)) {
|
2009-04-10 00:22:48 +00:00
|
|
|
cmd_type_len |= IXGBE_ADVTXD_DCMD_TSE;
|
2007-07-11 23:03:16 +00:00
|
|
|
olinfo_status |= IXGBE_TXD_POPTS_TXSM << 8;
|
2009-04-10 00:22:48 +00:00
|
|
|
olinfo_status |= paylen << IXGBE_ADVTXD_PAYLEN_SHIFT;
|
|
|
|
++adapter->tso_tx;
|
|
|
|
} else
|
|
|
|
return (ENXIO);
|
2009-06-24 18:27:07 +00:00
|
|
|
} else if (ixgbe_tx_ctx_setup(txr, m_head))
|
2009-04-10 00:22:48 +00:00
|
|
|
olinfo_status |= IXGBE_TXD_POPTS_TXSM << 8;
|
2009-06-24 18:27:07 +00:00
|
|
|
|
|
|
|
#ifdef IXGBE_IEEE1588
|
|
|
|
/* This is changing soon to an mtag detection */
|
|
|
|
if (we detect this mbuf has a TSTAMP mtag)
|
|
|
|
cmd_type_len |= IXGBE_ADVTXD_MAC_TSTAMP;
|
2009-04-10 00:22:48 +00:00
|
|
|
#endif
|
2009-06-24 18:27:07 +00:00
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
#ifdef IXGBE_FDIR
|
|
|
|
/* Do the flow director magic */
|
|
|
|
if ((txr->atr_sample) && (!adapter->fdir_reinit)) {
|
|
|
|
++txr->atr_count;
|
|
|
|
if (txr->atr_count >= atr_sample_rate) {
|
|
|
|
ixgbe_atr(txr, m_head);
|
|
|
|
txr->atr_count = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
2008-11-26 23:41:18 +00:00
|
|
|
/* Record payload length */
|
|
|
|
if (paylen == 0)
|
|
|
|
olinfo_status |= m_head->m_pkthdr.len <<
|
|
|
|
IXGBE_ADVTXD_PAYLEN_SHIFT;
|
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
i = txr->next_avail_desc;
|
2007-07-11 23:03:16 +00:00
|
|
|
for (j = 0; j < nsegs; j++) {
|
|
|
|
bus_size_t seglen;
|
|
|
|
bus_addr_t segaddr;
|
|
|
|
|
|
|
|
txbuf = &txr->tx_buffers[i];
|
|
|
|
txd = &txr->tx_base[i];
|
|
|
|
seglen = segs[j].ds_len;
|
|
|
|
segaddr = htole64(segs[j].ds_addr);
|
|
|
|
|
|
|
|
txd->read.buffer_addr = segaddr;
|
|
|
|
txd->read.cmd_type_len = htole32(txr->txd_cmd |
|
|
|
|
cmd_type_len |seglen);
|
|
|
|
txd->read.olinfo_status = htole32(olinfo_status);
|
2010-03-27 00:21:40 +00:00
|
|
|
last = i; /* descriptor that will get completion IRQ */
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
if (++i == adapter->num_tx_desc)
|
|
|
|
i = 0;
|
|
|
|
|
|
|
|
txbuf->m_head = NULL;
|
2009-04-10 00:22:48 +00:00
|
|
|
txbuf->eop_index = -1;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
txd->read.cmd_type_len |=
|
|
|
|
htole32(IXGBE_TXD_CMD_EOP | IXGBE_TXD_CMD_RS);
|
2007-07-11 23:03:16 +00:00
|
|
|
txr->tx_avail -= nsegs;
|
2009-12-07 21:30:54 +00:00
|
|
|
txr->next_avail_desc = i;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
txbuf->m_head = m_head;
|
2011-06-02 00:34:57 +00:00
|
|
|
/* Swap the dma map between the first and last descriptor */
|
|
|
|
txr->tx_buffers[first].map = txbuf->map;
|
2007-07-11 23:03:16 +00:00
|
|
|
txbuf->map = map;
|
|
|
|
bus_dmamap_sync(txr->txtag, map, BUS_DMASYNC_PREWRITE);
|
|
|
|
|
|
|
|
/* Set the index of the descriptor that will be marked done */
|
|
|
|
txbuf = &txr->tx_buffers[first];
|
2009-04-10 00:22:48 +00:00
|
|
|
txbuf->eop_index = last;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
bus_dmamap_sync(txr->txdma.dma_tag, txr->txdma.dma_map,
|
|
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
|
|
/*
|
|
|
|
* Advance the Transmit Descriptor Tail (Tdt), this tells the
|
|
|
|
* hardware that this frame is available to transmit.
|
|
|
|
*/
|
2008-11-26 23:41:18 +00:00
|
|
|
++txr->total_packets;
|
2007-07-11 23:03:16 +00:00
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_TDT(txr->me), i);
|
2010-03-27 00:21:40 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
return (0);
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
xmit_fail:
|
2007-07-11 23:03:16 +00:00
|
|
|
bus_dmamap_unload(txr->txtag, txbuf->map);
|
|
|
|
return (error);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
ixgbe_set_promisc(struct adapter *adapter)
|
|
|
|
{
|
|
|
|
u_int32_t reg_rctl;
|
|
|
|
struct ifnet *ifp = adapter->ifp;
|
|
|
|
|
|
|
|
reg_rctl = IXGBE_READ_REG(&adapter->hw, IXGBE_FCTRL);
|
2010-11-26 22:46:32 +00:00
|
|
|
reg_rctl &= (~IXGBE_FCTRL_UPE);
|
|
|
|
reg_rctl &= (~IXGBE_FCTRL_MPE);
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_FCTRL, reg_rctl);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
if (ifp->if_flags & IFF_PROMISC) {
|
|
|
|
reg_rctl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_FCTRL, reg_rctl);
|
|
|
|
} else if (ifp->if_flags & IFF_ALLMULTI) {
|
|
|
|
reg_rctl |= IXGBE_FCTRL_MPE;
|
|
|
|
reg_rctl &= ~IXGBE_FCTRL_UPE;
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_FCTRL, reg_rctl);
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
* Multicast Update
|
|
|
|
*
|
|
|
|
* This routine is called whenever multicast address list is updated.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
#define IXGBE_RAR_ENTRIES 16
|
|
|
|
|
|
|
|
static void
|
|
|
|
ixgbe_set_multi(struct adapter *adapter)
|
|
|
|
{
|
2008-05-16 18:46:30 +00:00
|
|
|
u32 fctrl;
|
2010-11-26 23:57:13 +00:00
|
|
|
u8 *mta;
|
2008-05-16 18:46:30 +00:00
|
|
|
u8 *update_ptr;
|
|
|
|
struct ifmultiaddr *ifma;
|
|
|
|
int mcnt = 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
struct ifnet *ifp = adapter->ifp;
|
|
|
|
|
|
|
|
IOCTL_DEBUGOUT("ixgbe_set_multi: begin");
|
|
|
|
|
2010-11-26 23:57:13 +00:00
|
|
|
mta = adapter->mta;
|
|
|
|
bzero(mta, sizeof(u8) * IXGBE_ETH_LENGTH_OF_ADDRESS *
|
|
|
|
MAX_NUM_MULTICAST_ADDRESSES);
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
fctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_FCTRL);
|
|
|
|
fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
|
|
|
|
if (ifp->if_flags & IFF_PROMISC)
|
|
|
|
fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
|
|
|
|
else if (ifp->if_flags & IFF_ALLMULTI) {
|
|
|
|
fctrl |= IXGBE_FCTRL_MPE;
|
|
|
|
fctrl &= ~IXGBE_FCTRL_UPE;
|
|
|
|
} else
|
|
|
|
fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
|
|
|
|
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_FCTRL, fctrl);
|
|
|
|
|
2009-08-24 20:41:51 +00:00
|
|
|
#if __FreeBSD_version < 800000
|
|
|
|
IF_ADDR_LOCK(ifp);
|
|
|
|
#else
|
2009-06-26 11:45:06 +00:00
|
|
|
if_maddr_rlock(ifp);
|
2009-08-24 20:41:51 +00:00
|
|
|
#endif
|
2007-07-11 23:03:16 +00:00
|
|
|
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
|
|
|
|
if (ifma->ifma_addr->sa_family != AF_LINK)
|
|
|
|
continue;
|
|
|
|
bcopy(LLADDR((struct sockaddr_dl *) ifma->ifma_addr),
|
|
|
|
&mta[mcnt * IXGBE_ETH_LENGTH_OF_ADDRESS],
|
|
|
|
IXGBE_ETH_LENGTH_OF_ADDRESS);
|
|
|
|
mcnt++;
|
|
|
|
}
|
2009-08-24 20:41:51 +00:00
|
|
|
#if __FreeBSD_version < 800000
|
|
|
|
IF_ADDR_UNLOCK(ifp);
|
|
|
|
#else
|
2009-06-26 11:45:06 +00:00
|
|
|
if_maddr_runlock(ifp);
|
2009-08-24 20:41:51 +00:00
|
|
|
#endif
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
update_ptr = mta;
|
|
|
|
ixgbe_update_mc_addr_list(&adapter->hw,
|
2012-01-30 16:42:02 +00:00
|
|
|
update_ptr, mcnt, ixgbe_mc_array_itr, TRUE);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
/*
|
|
|
|
* This is an iterator function now needed by the multicast
|
|
|
|
* shared code. It simply feeds the shared code routine the
|
|
|
|
* addresses in the array of ixgbe_set_multi() one by one.
|
|
|
|
*/
|
|
|
|
static u8 *
|
|
|
|
ixgbe_mc_array_itr(struct ixgbe_hw *hw, u8 **update_ptr, u32 *vmdq)
|
|
|
|
{
|
|
|
|
u8 *addr = *update_ptr;
|
|
|
|
u8 *newptr;
|
|
|
|
*vmdq = 0;
|
|
|
|
|
|
|
|
newptr = addr + IXGBE_ETH_LENGTH_OF_ADDRESS;
|
|
|
|
*update_ptr = newptr;
|
|
|
|
return addr;
|
|
|
|
}
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
* Timer routine
|
|
|
|
*
|
|
|
|
* This routine checks for link status,updates statistics,
|
2009-12-07 21:30:54 +00:00
|
|
|
* and runs the watchdog check.
|
2007-07-11 23:03:16 +00:00
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
|
|
|
|
static void
|
|
|
|
ixgbe_local_timer(void *arg)
|
|
|
|
{
|
2012-01-30 16:42:02 +00:00
|
|
|
struct adapter *adapter = arg;
|
2009-12-07 21:30:54 +00:00
|
|
|
device_t dev = adapter->dev;
|
2012-01-30 16:42:02 +00:00
|
|
|
struct ix_queue *que = adapter->queues;
|
|
|
|
struct tx_ring *txr = adapter->tx_rings;
|
2012-11-30 22:33:21 +00:00
|
|
|
int hung = 0, paused = 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2007-09-04 02:31:35 +00:00
|
|
|
mtx_assert(&adapter->core_mtx, MA_OWNED);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
/* Check for pluggable optics */
|
|
|
|
if (adapter->sfp_probe)
|
|
|
|
if (!ixgbe_sfp_probe(adapter))
|
|
|
|
goto out; /* Nothing to do */
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_update_link_status(adapter);
|
|
|
|
ixgbe_update_stats_counters(adapter);
|
2010-03-27 00:21:40 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* If the interface has been paused
|
|
|
|
* then don't do the watchdog check
|
|
|
|
*/
|
|
|
|
if (IXGBE_READ_REG(&adapter->hw, IXGBE_TFCS) & IXGBE_TFCS_TXOFF)
|
2012-01-30 16:42:02 +00:00
|
|
|
paused = 1;
|
2010-11-26 22:46:32 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/*
|
2012-01-30 16:42:02 +00:00
|
|
|
** Check the TX queues status
|
|
|
|
** - watchdog only if all queues show hung
|
|
|
|
*/
|
|
|
|
for (int i = 0; i < adapter->num_queues; i++, que++, txr++) {
|
2012-11-30 22:33:21 +00:00
|
|
|
if ((txr->queue_status == IXGBE_QUEUE_HUNG) &&
|
2012-01-30 16:42:02 +00:00
|
|
|
(paused == 0))
|
|
|
|
++hung;
|
2012-11-30 22:33:21 +00:00
|
|
|
else if (txr->queue_status == IXGBE_QUEUE_WORKING)
|
2012-01-30 16:42:02 +00:00
|
|
|
taskqueue_enqueue(que->tq, &que->que_task);
|
|
|
|
}
|
|
|
|
/* Only truely watchdog if all queues show hung */
|
|
|
|
if (hung == adapter->num_queues)
|
|
|
|
goto watchdog;
|
2010-11-26 22:46:32 +00:00
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
out:
|
2010-11-27 01:34:09 +00:00
|
|
|
ixgbe_rearm_queues(adapter, adapter->que_mask);
|
2007-07-11 23:03:16 +00:00
|
|
|
callout_reset(&adapter->timer, hz, ixgbe_local_timer, adapter);
|
2009-12-07 21:30:54 +00:00
|
|
|
return;
|
|
|
|
|
2012-01-30 16:42:02 +00:00
|
|
|
watchdog:
|
2009-12-07 21:30:54 +00:00
|
|
|
device_printf(adapter->dev, "Watchdog timeout -- resetting\n");
|
|
|
|
device_printf(dev,"Queue(%d) tdh = %d, hw tdt = %d\n", txr->me,
|
|
|
|
IXGBE_READ_REG(&adapter->hw, IXGBE_TDH(txr->me)),
|
|
|
|
IXGBE_READ_REG(&adapter->hw, IXGBE_TDT(txr->me)));
|
|
|
|
device_printf(dev,"TX(%d) desc avail = %d,"
|
|
|
|
"Next TX to Clean = %d\n",
|
|
|
|
txr->me, txr->tx_avail, txr->next_to_clean);
|
|
|
|
adapter->ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
|
|
|
|
adapter->watchdog_events++;
|
|
|
|
ixgbe_init_locked(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2009-04-10 00:22:48 +00:00
|
|
|
/*
|
|
|
|
** Note: this routine updates the OS on the link state
|
|
|
|
** the real check of the hardware only happens with
|
|
|
|
** a link interrupt.
|
|
|
|
*/
|
2007-07-11 23:03:16 +00:00
|
|
|
static void
|
|
|
|
ixgbe_update_link_status(struct adapter *adapter)
|
|
|
|
{
|
|
|
|
struct ifnet *ifp = adapter->ifp;
|
|
|
|
device_t dev = adapter->dev;
|
|
|
|
|
|
|
|
|
2009-04-10 00:22:48 +00:00
|
|
|
if (adapter->link_up){
|
2007-07-11 23:03:16 +00:00
|
|
|
if (adapter->link_active == FALSE) {
|
|
|
|
if (bootverbose)
|
2008-05-16 18:46:30 +00:00
|
|
|
device_printf(dev,"Link is up %d Gbps %s \n",
|
|
|
|
((adapter->link_speed == 128)? 10:1),
|
|
|
|
"Full Duplex");
|
2007-07-11 23:03:16 +00:00
|
|
|
adapter->link_active = TRUE;
|
2012-07-05 20:51:44 +00:00
|
|
|
/* Update any Flow Control changes */
|
|
|
|
ixgbe_fc_enable(&adapter->hw);
|
2007-07-11 23:03:16 +00:00
|
|
|
if_link_state_change(ifp, LINK_STATE_UP);
|
|
|
|
}
|
|
|
|
} else { /* Link down */
|
|
|
|
if (adapter->link_active == TRUE) {
|
|
|
|
if (bootverbose)
|
|
|
|
device_printf(dev,"Link is Down\n");
|
|
|
|
if_link_state_change(ifp, LINK_STATE_DOWN);
|
|
|
|
adapter->link_active = FALSE;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* This routine disables all traffic on the adapter by issuing a
|
|
|
|
* global reset on the MAC and deallocates TX/RX buffers.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
|
|
|
|
static void
|
|
|
|
ixgbe_stop(void *arg)
|
|
|
|
{
|
|
|
|
struct ifnet *ifp;
|
|
|
|
struct adapter *adapter = arg;
|
2010-11-26 22:46:32 +00:00
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
2007-07-11 23:03:16 +00:00
|
|
|
ifp = adapter->ifp;
|
|
|
|
|
2007-09-04 02:31:35 +00:00
|
|
|
mtx_assert(&adapter->core_mtx, MA_OWNED);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
INIT_DEBUGOUT("ixgbe_stop: begin\n");
|
|
|
|
ixgbe_disable_intr(adapter);
|
2012-01-30 16:42:02 +00:00
|
|
|
callout_stop(&adapter->timer);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2012-01-30 16:42:02 +00:00
|
|
|
/* Let the stack know...*/
|
|
|
|
ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-11-26 22:46:32 +00:00
|
|
|
ixgbe_reset_hw(hw);
|
|
|
|
hw->adapter_stopped = FALSE;
|
|
|
|
ixgbe_stop_adapter(hw);
|
|
|
|
/* Turn off the laser */
|
|
|
|
if (hw->phy.multispeed_fiber)
|
|
|
|
ixgbe_disable_tx_laser(hw);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2007-09-04 02:31:35 +00:00
|
|
|
/* reprogram the RAR[0] in case user changed it. */
|
|
|
|
ixgbe_set_rar(&adapter->hw, 0, adapter->hw.mac.addr, 0, IXGBE_RAH_AV);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Determine hardware revision.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static void
|
|
|
|
ixgbe_identify_hardware(struct adapter *adapter)
|
|
|
|
{
|
|
|
|
device_t dev = adapter->dev;
|
2011-01-19 19:36:27 +00:00
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* Save off the information about this board */
|
2011-01-19 19:36:27 +00:00
|
|
|
hw->vendor_id = pci_get_vendor(dev);
|
|
|
|
hw->device_id = pci_get_device(dev);
|
|
|
|
hw->revision_id = pci_read_config(dev, PCIR_REVID, 1);
|
|
|
|
hw->subsystem_vendor_id =
|
2007-07-11 23:03:16 +00:00
|
|
|
pci_read_config(dev, PCIR_SUBVEND_0, 2);
|
2011-01-19 19:36:27 +00:00
|
|
|
hw->subsystem_device_id =
|
2007-07-11 23:03:16 +00:00
|
|
|
pci_read_config(dev, PCIR_SUBDEV_0, 2);
|
|
|
|
|
2011-01-19 19:36:27 +00:00
|
|
|
/* We need this here to set the num_segs below */
|
|
|
|
ixgbe_set_mac_type(hw);
|
|
|
|
|
|
|
|
/* Pick up the 82599 and VF settings */
|
|
|
|
if (hw->mac.type != ixgbe_mac_82598EB) {
|
|
|
|
hw->phy.smart_speed = ixgbe_smart_speed;
|
|
|
|
adapter->num_segs = IXGBE_82599_SCATTER;
|
|
|
|
} else
|
|
|
|
adapter->num_segs = IXGBE_82598_SCATTER;
|
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Determine optic type
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static void
|
|
|
|
ixgbe_setup_optics(struct adapter *adapter)
|
|
|
|
{
|
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
|
|
|
int layer;
|
|
|
|
|
|
|
|
layer = ixgbe_get_supported_physical_layer(hw);
|
2012-01-30 16:42:02 +00:00
|
|
|
|
|
|
|
if (layer & IXGBE_PHYSICAL_LAYER_10GBASE_T) {
|
|
|
|
adapter->optics = IFM_10G_T;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (layer & IXGBE_PHYSICAL_LAYER_1000BASE_T) {
|
|
|
|
adapter->optics = IFM_1000_T;
|
|
|
|
return;
|
2011-01-19 19:36:27 +00:00
|
|
|
}
|
2012-01-30 16:42:02 +00:00
|
|
|
|
A few important fixes:
- Testing TSO6 has led me to discover that HW RSC is
a problematic feature, it is ONLY designed to work
with IPv4 in the first place, and if IP forwarding
is done it can't be disabled as LRO in the stack,
also initial testing we've done at Intel shows an
equal performance using TSO[46] on the TX and LRO
on RX, if you ran older code on 82599 or later hardware
you actually could have detrimental performance for
this reason. So I am disabling the feature by default
and all our adapters will now use LRO instead.
- If you have flow control off and multiple queues it
was possible when the buffer of one queue becomes
full that all RX movement is stalled, to eliminate
this problem a feature bit is now set that will allow
packets to be dropped when full rather than stall.
Note, the default is to have flow control on, and this
keeps this from happening.
- Because of the recent fixes in the stack, LRO is now
auto-disabled when problematic, so I have decided to
enable it by default in the capabilities in the driver.
- There are some 1G modules used by some customers, a couple
small tweaks to properly support those in the media code.
- A note: we have now done some testing of TSO6 and using
LRO with IPv6 and it all works great!! Seeing line rate
in both directions in best cases. Thanks bz for your
excellent work!!
2012-10-31 23:50:36 +00:00
|
|
|
if (layer & IXGBE_PHYSICAL_LAYER_1000BASE_SX) {
|
|
|
|
adapter->optics = IFM_1000_SX;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2012-01-30 16:42:02 +00:00
|
|
|
if (layer & (IXGBE_PHYSICAL_LAYER_10GBASE_LR |
|
|
|
|
IXGBE_PHYSICAL_LAYER_10GBASE_LRM)) {
|
|
|
|
adapter->optics = IFM_10G_LR;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (layer & IXGBE_PHYSICAL_LAYER_10GBASE_SR) {
|
|
|
|
adapter->optics = IFM_10G_SR;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (layer & IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU) {
|
|
|
|
adapter->optics = IFM_10G_TWINAX;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (layer & (IXGBE_PHYSICAL_LAYER_10GBASE_KX4 |
|
|
|
|
IXGBE_PHYSICAL_LAYER_10GBASE_CX4)) {
|
|
|
|
adapter->optics = IFM_10G_CX4;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we get here just set the default */
|
|
|
|
adapter->optics = IFM_ETHER | IFM_AUTO;
|
2007-07-11 23:03:16 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
2008-05-16 18:46:30 +00:00
|
|
|
* Setup the Legacy or MSI Interrupt handler
|
2007-07-11 23:03:16 +00:00
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static int
|
2008-05-16 18:46:30 +00:00
|
|
|
ixgbe_allocate_legacy(struct adapter *adapter)
|
|
|
|
{
|
|
|
|
device_t dev = adapter->dev;
|
2010-03-27 00:21:40 +00:00
|
|
|
struct ix_queue *que = adapter->queues;
|
2012-09-26 18:11:43 +00:00
|
|
|
#if __FreeBSD_version >= 800000
|
|
|
|
struct tx_ring *txr = adapter->tx_rings;
|
|
|
|
#endif
|
2009-06-24 18:27:07 +00:00
|
|
|
int error, rid = 0;
|
2008-05-16 18:46:30 +00:00
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
/* MSI RID at 1 */
|
|
|
|
if (adapter->msix == 1)
|
|
|
|
rid = 1;
|
2008-05-16 18:46:30 +00:00
|
|
|
|
|
|
|
/* We allocate a single interrupt resource */
|
2009-06-24 18:27:07 +00:00
|
|
|
adapter->res = bus_alloc_resource_any(dev,
|
|
|
|
SYS_RES_IRQ, &rid, RF_SHAREABLE | RF_ACTIVE);
|
|
|
|
if (adapter->res == NULL) {
|
2008-05-16 18:46:30 +00:00
|
|
|
device_printf(dev, "Unable to allocate bus resource: "
|
|
|
|
"interrupt\n");
|
|
|
|
return (ENXIO);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Try allocating a fast interrupt and the associated deferred
|
|
|
|
* processing contexts.
|
|
|
|
*/
|
2012-09-26 18:11:43 +00:00
|
|
|
#if __FreeBSD_version >= 800000
|
|
|
|
TASK_INIT(&txr->txq_task, 0, ixgbe_deferred_mq_start, txr);
|
|
|
|
#endif
|
2010-03-27 00:21:40 +00:00
|
|
|
TASK_INIT(&que->que_task, 0, ixgbe_handle_que, que);
|
|
|
|
que->tq = taskqueue_create_fast("ixgbe_que", M_NOWAIT,
|
|
|
|
taskqueue_thread_enqueue, &que->tq);
|
|
|
|
taskqueue_start_threads(&que->tq, 1, PI_NET, "%s ixq",
|
2008-05-16 18:46:30 +00:00
|
|
|
device_get_nameunit(adapter->dev));
|
2009-04-10 00:22:48 +00:00
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
/* Tasklets for Link, SFP and Multispeed Fiber */
|
|
|
|
TASK_INIT(&adapter->link_task, 0, ixgbe_handle_link, adapter);
|
|
|
|
TASK_INIT(&adapter->mod_task, 0, ixgbe_handle_mod, adapter);
|
|
|
|
TASK_INIT(&adapter->msf_task, 0, ixgbe_handle_msf, adapter);
|
2009-12-07 21:30:54 +00:00
|
|
|
#ifdef IXGBE_FDIR
|
|
|
|
TASK_INIT(&adapter->fdir_task, 0, ixgbe_reinit_fdir, adapter);
|
|
|
|
#endif
|
2009-06-24 18:27:07 +00:00
|
|
|
adapter->tq = taskqueue_create_fast("ixgbe_link", M_NOWAIT,
|
|
|
|
taskqueue_thread_enqueue, &adapter->tq);
|
|
|
|
taskqueue_start_threads(&adapter->tq, 1, PI_NET, "%s linkq",
|
|
|
|
device_get_nameunit(adapter->dev));
|
|
|
|
|
|
|
|
if ((error = bus_setup_intr(dev, adapter->res,
|
2008-05-16 18:46:30 +00:00
|
|
|
INTR_TYPE_NET | INTR_MPSAFE, NULL, ixgbe_legacy_irq,
|
2010-03-27 00:21:40 +00:00
|
|
|
que, &adapter->tag)) != 0) {
|
2008-05-16 18:46:30 +00:00
|
|
|
device_printf(dev, "Failed to register fast interrupt "
|
|
|
|
"handler: %d\n", error);
|
2010-03-27 00:21:40 +00:00
|
|
|
taskqueue_free(que->tq);
|
|
|
|
taskqueue_free(adapter->tq);
|
|
|
|
que->tq = NULL;
|
|
|
|
adapter->tq = NULL;
|
2008-05-16 18:46:30 +00:00
|
|
|
return (error);
|
|
|
|
}
|
2010-03-27 00:21:40 +00:00
|
|
|
/* For simplicity in the handlers */
|
|
|
|
adapter->que_mask = IXGBE_EIMS_ENABLE_MASK;
|
2008-05-16 18:46:30 +00:00
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Setup MSIX Interrupt resources and handlers
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static int
|
|
|
|
ixgbe_allocate_msix(struct adapter *adapter)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
|
|
|
device_t dev = adapter->dev;
|
2010-03-27 00:21:40 +00:00
|
|
|
struct ix_queue *que = adapter->queues;
|
2012-09-26 18:11:43 +00:00
|
|
|
struct tx_ring *txr = adapter->tx_rings;
|
2009-06-24 18:27:07 +00:00
|
|
|
int error, rid, vector = 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2012-09-26 18:11:43 +00:00
|
|
|
for (int i = 0; i < adapter->num_queues; i++, vector++, que++, txr++) {
|
2009-06-24 18:27:07 +00:00
|
|
|
rid = vector + 1;
|
2010-03-27 00:21:40 +00:00
|
|
|
que->res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
|
2007-07-11 23:03:16 +00:00
|
|
|
RF_SHAREABLE | RF_ACTIVE);
|
2010-03-27 00:21:40 +00:00
|
|
|
if (que->res == NULL) {
|
2007-07-11 23:03:16 +00:00
|
|
|
device_printf(dev,"Unable to allocate"
|
2010-03-27 00:21:40 +00:00
|
|
|
" bus resource: que interrupt [%d]\n", vector);
|
2007-07-11 23:03:16 +00:00
|
|
|
return (ENXIO);
|
|
|
|
}
|
|
|
|
/* Set the handler function */
|
2010-03-27 00:21:40 +00:00
|
|
|
error = bus_setup_intr(dev, que->res,
|
2009-06-24 18:27:07 +00:00
|
|
|
INTR_TYPE_NET | INTR_MPSAFE, NULL,
|
2010-03-27 00:21:40 +00:00
|
|
|
ixgbe_msix_que, que, &que->tag);
|
2007-07-11 23:03:16 +00:00
|
|
|
if (error) {
|
2010-03-27 00:21:40 +00:00
|
|
|
que->res = NULL;
|
|
|
|
device_printf(dev, "Failed to register QUE handler");
|
2007-07-11 23:03:16 +00:00
|
|
|
return (error);
|
|
|
|
}
|
2010-06-11 19:03:59 +00:00
|
|
|
#if __FreeBSD_version >= 800504
|
|
|
|
bus_describe_intr(dev, que->res, que->tag, "que %d", i);
|
|
|
|
#endif
|
2010-03-27 00:21:40 +00:00
|
|
|
que->msix = vector;
|
|
|
|
adapter->que_mask |= (u64)(1 << que->msix);
|
2009-06-24 18:27:07 +00:00
|
|
|
/*
|
|
|
|
** Bind the msix vector, and thus the
|
|
|
|
** ring to the corresponding cpu.
|
|
|
|
*/
|
2009-06-25 18:40:27 +00:00
|
|
|
if (adapter->num_queues > 1)
|
2010-03-27 00:21:40 +00:00
|
|
|
bus_bind_intr(dev, que->res, i);
|
2009-06-25 17:16:26 +00:00
|
|
|
|
2012-09-26 18:11:43 +00:00
|
|
|
#if __FreeBSD_version >= 800000
|
|
|
|
TASK_INIT(&txr->txq_task, 0, ixgbe_deferred_mq_start, txr);
|
|
|
|
#endif
|
2010-03-27 00:21:40 +00:00
|
|
|
TASK_INIT(&que->que_task, 0, ixgbe_handle_que, que);
|
|
|
|
que->tq = taskqueue_create_fast("ixgbe_que", M_NOWAIT,
|
|
|
|
taskqueue_thread_enqueue, &que->tq);
|
|
|
|
taskqueue_start_threads(&que->tq, 1, PI_NET, "%s que",
|
2008-11-26 23:41:18 +00:00
|
|
|
device_get_nameunit(adapter->dev));
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
/* and Link */
|
2009-06-24 18:27:07 +00:00
|
|
|
rid = vector + 1;
|
|
|
|
adapter->res = bus_alloc_resource_any(dev,
|
|
|
|
SYS_RES_IRQ, &rid, RF_SHAREABLE | RF_ACTIVE);
|
|
|
|
if (!adapter->res) {
|
2007-07-11 23:03:16 +00:00
|
|
|
device_printf(dev,"Unable to allocate"
|
2009-06-24 18:27:07 +00:00
|
|
|
" bus resource: Link interrupt [%d]\n", rid);
|
2007-07-11 23:03:16 +00:00
|
|
|
return (ENXIO);
|
|
|
|
}
|
|
|
|
/* Set the link handler function */
|
2009-06-24 18:27:07 +00:00
|
|
|
error = bus_setup_intr(dev, adapter->res,
|
|
|
|
INTR_TYPE_NET | INTR_MPSAFE, NULL,
|
|
|
|
ixgbe_msix_link, adapter, &adapter->tag);
|
2007-07-11 23:03:16 +00:00
|
|
|
if (error) {
|
2009-06-24 18:27:07 +00:00
|
|
|
adapter->res = NULL;
|
2007-07-11 23:03:16 +00:00
|
|
|
device_printf(dev, "Failed to register LINK handler");
|
|
|
|
return (error);
|
|
|
|
}
|
2010-06-11 19:03:59 +00:00
|
|
|
#if __FreeBSD_version >= 800504
|
|
|
|
bus_describe_intr(dev, adapter->res, adapter->tag, "link");
|
|
|
|
#endif
|
2008-05-16 18:46:30 +00:00
|
|
|
adapter->linkvec = vector;
|
2009-04-10 00:22:48 +00:00
|
|
|
/* Tasklets for Link, SFP and Multispeed Fiber */
|
|
|
|
TASK_INIT(&adapter->link_task, 0, ixgbe_handle_link, adapter);
|
|
|
|
TASK_INIT(&adapter->mod_task, 0, ixgbe_handle_mod, adapter);
|
|
|
|
TASK_INIT(&adapter->msf_task, 0, ixgbe_handle_msf, adapter);
|
2009-12-07 21:30:54 +00:00
|
|
|
#ifdef IXGBE_FDIR
|
|
|
|
TASK_INIT(&adapter->fdir_task, 0, ixgbe_reinit_fdir, adapter);
|
|
|
|
#endif
|
2009-04-10 00:22:48 +00:00
|
|
|
adapter->tq = taskqueue_create_fast("ixgbe_link", M_NOWAIT,
|
|
|
|
taskqueue_thread_enqueue, &adapter->tq);
|
|
|
|
taskqueue_start_threads(&adapter->tq, 1, PI_NET, "%s linkq",
|
|
|
|
device_get_nameunit(adapter->dev));
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
/*
|
|
|
|
* Setup Either MSI/X or MSI
|
|
|
|
*/
|
2007-07-11 23:03:16 +00:00
|
|
|
static int
|
2008-05-16 18:46:30 +00:00
|
|
|
ixgbe_setup_msix(struct adapter *adapter)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
2008-05-16 18:46:30 +00:00
|
|
|
device_t dev = adapter->dev;
|
|
|
|
int rid, want, queues, msgs;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
/* Override by tuneable */
|
|
|
|
if (ixgbe_enable_msix == 0)
|
|
|
|
goto msi;
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
/* First try MSI/X */
|
2008-11-26 23:41:18 +00:00
|
|
|
rid = PCIR_BAR(MSIX_82598_BAR);
|
2008-05-16 18:46:30 +00:00
|
|
|
adapter->msix_mem = bus_alloc_resource_any(dev,
|
|
|
|
SYS_RES_MEMORY, &rid, RF_ACTIVE);
|
2008-11-26 23:41:18 +00:00
|
|
|
if (!adapter->msix_mem) {
|
|
|
|
rid += 4; /* 82599 maps in higher BAR */
|
|
|
|
adapter->msix_mem = bus_alloc_resource_any(dev,
|
|
|
|
SYS_RES_MEMORY, &rid, RF_ACTIVE);
|
|
|
|
}
|
2008-05-16 18:46:30 +00:00
|
|
|
if (!adapter->msix_mem) {
|
|
|
|
/* May not be enabled */
|
|
|
|
device_printf(adapter->dev,
|
|
|
|
"Unable to map MSIX table \n");
|
|
|
|
goto msi;
|
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
msgs = pci_msix_count(dev);
|
|
|
|
if (msgs == 0) { /* system has msix disabled */
|
|
|
|
bus_release_resource(dev, SYS_RES_MEMORY,
|
2008-11-26 23:41:18 +00:00
|
|
|
rid, adapter->msix_mem);
|
2008-05-16 18:46:30 +00:00
|
|
|
adapter->msix_mem = NULL;
|
|
|
|
goto msi;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Figure out a reasonable auto config value */
|
2010-03-27 00:21:40 +00:00
|
|
|
queues = (mp_ncpus > (msgs-1)) ? (msgs-1) : mp_ncpus;
|
2008-05-16 18:46:30 +00:00
|
|
|
|
2010-05-19 00:03:48 +00:00
|
|
|
if (ixgbe_num_queues != 0)
|
|
|
|
queues = ixgbe_num_queues;
|
2011-01-19 19:36:27 +00:00
|
|
|
/* Set max queues to 8 when autoconfiguring */
|
|
|
|
else if ((ixgbe_num_queues == 0) && (queues > 8))
|
2010-11-26 22:46:32 +00:00
|
|
|
queues = 8;
|
2010-05-19 00:03:48 +00:00
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
/*
|
2010-03-27 00:21:40 +00:00
|
|
|
** Want one vector (RX/TX pair) per queue
|
2009-06-24 18:27:07 +00:00
|
|
|
** plus an additional for Link.
|
|
|
|
*/
|
2010-05-19 00:03:48 +00:00
|
|
|
want = queues + 1;
|
2008-05-16 18:46:30 +00:00
|
|
|
if (msgs >= want)
|
|
|
|
msgs = want;
|
|
|
|
else {
|
|
|
|
device_printf(adapter->dev,
|
|
|
|
"MSIX Configuration Problem, "
|
|
|
|
"%d vectors but %d queues wanted!\n",
|
|
|
|
msgs, want);
|
2009-06-24 18:27:07 +00:00
|
|
|
return (0); /* Will go to Legacy setup */
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
2008-05-16 18:46:30 +00:00
|
|
|
if ((msgs) && pci_alloc_msix(dev, &msgs) == 0) {
|
|
|
|
device_printf(adapter->dev,
|
|
|
|
"Using MSIX interrupts with %d vectors\n", msgs);
|
2010-05-19 00:03:48 +00:00
|
|
|
adapter->num_queues = queues;
|
2008-05-16 18:46:30 +00:00
|
|
|
return (msgs);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
2008-05-16 18:46:30 +00:00
|
|
|
msi:
|
|
|
|
msgs = pci_msi_count(dev);
|
|
|
|
if (msgs == 1 && pci_alloc_msi(dev, &msgs) == 0)
|
2011-06-02 00:34:57 +00:00
|
|
|
device_printf(adapter->dev,"Using an MSI interrupt\n");
|
|
|
|
else
|
|
|
|
device_printf(adapter->dev,"Using a Legacy interrupt\n");
|
2008-05-16 18:46:30 +00:00
|
|
|
return (msgs);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
2009-06-24 18:27:07 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
static int
|
2008-05-16 18:46:30 +00:00
|
|
|
ixgbe_allocate_pci_resources(struct adapter *adapter)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
2008-05-16 18:46:30 +00:00
|
|
|
int rid;
|
2007-07-11 23:03:16 +00:00
|
|
|
device_t dev = adapter->dev;
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
rid = PCIR_BAR(0);
|
|
|
|
adapter->pci_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
|
2007-07-11 23:03:16 +00:00
|
|
|
&rid, RF_ACTIVE);
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
if (!(adapter->pci_mem)) {
|
|
|
|
device_printf(dev,"Unable to allocate bus resource: memory\n");
|
|
|
|
return (ENXIO);
|
|
|
|
}
|
|
|
|
|
|
|
|
adapter->osdep.mem_bus_space_tag =
|
|
|
|
rman_get_bustag(adapter->pci_mem);
|
|
|
|
adapter->osdep.mem_bus_space_handle =
|
|
|
|
rman_get_bushandle(adapter->pci_mem);
|
|
|
|
adapter->hw.hw_addr = (u8 *) &adapter->osdep.mem_bus_space_handle;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
/* Legacy defaults */
|
2009-06-24 18:27:07 +00:00
|
|
|
adapter->num_queues = 1;
|
|
|
|
adapter->hw.back = &adapter->osdep;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
/*
|
|
|
|
** Now setup MSI or MSI/X, should
|
|
|
|
** return us the number of supported
|
|
|
|
** vectors. (Will be 1 for MSI)
|
|
|
|
*/
|
2008-05-16 18:46:30 +00:00
|
|
|
adapter->msix = ixgbe_setup_msix(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
ixgbe_free_pci_resources(struct adapter * adapter)
|
|
|
|
{
|
2010-03-27 00:21:40 +00:00
|
|
|
struct ix_queue *que = adapter->queues;
|
2008-11-26 23:41:18 +00:00
|
|
|
device_t dev = adapter->dev;
|
2009-06-24 18:27:07 +00:00
|
|
|
int rid, memrid;
|
2008-05-16 18:46:30 +00:00
|
|
|
|
2009-04-10 00:22:48 +00:00
|
|
|
if (adapter->hw.mac.type == ixgbe_mac_82598EB)
|
2009-06-24 18:27:07 +00:00
|
|
|
memrid = PCIR_BAR(MSIX_82598_BAR);
|
2009-04-10 00:22:48 +00:00
|
|
|
else
|
2009-06-24 18:27:07 +00:00
|
|
|
memrid = PCIR_BAR(MSIX_82599_BAR);
|
2008-11-26 23:41:18 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/*
|
2009-06-24 18:27:07 +00:00
|
|
|
** There is a slight possibility of a failure mode
|
|
|
|
** in attach that will result in entering this function
|
|
|
|
** before interrupt resources have been initialized, and
|
|
|
|
** in that case we do not want to execute the loops below
|
|
|
|
** We can detect this reliably by the state of the adapter
|
|
|
|
** res pointer.
|
|
|
|
*/
|
|
|
|
if (adapter->res == NULL)
|
|
|
|
goto mem;
|
|
|
|
|
|
|
|
/*
|
2010-03-27 00:21:40 +00:00
|
|
|
** Release all msix queue resources:
|
2009-06-24 18:27:07 +00:00
|
|
|
*/
|
2010-03-27 00:21:40 +00:00
|
|
|
for (int i = 0; i < adapter->num_queues; i++, que++) {
|
|
|
|
rid = que->msix + 1;
|
|
|
|
if (que->tag != NULL) {
|
|
|
|
bus_teardown_intr(dev, que->res, que->tag);
|
|
|
|
que->tag = NULL;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
2010-03-27 00:21:40 +00:00
|
|
|
if (que->res != NULL)
|
|
|
|
bus_release_resource(dev, SYS_RES_IRQ, rid, que->res);
|
2009-06-24 18:27:07 +00:00
|
|
|
}
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
/* Clean the Legacy or Link interrupt last */
|
|
|
|
if (adapter->linkvec) /* we are doing MSIX */
|
|
|
|
rid = adapter->linkvec + 1;
|
|
|
|
else
|
|
|
|
(adapter->msix != 0) ? (rid = 1):(rid = 0);
|
|
|
|
|
|
|
|
if (adapter->tag != NULL) {
|
|
|
|
bus_teardown_intr(dev, adapter->res, adapter->tag);
|
|
|
|
adapter->tag = NULL;
|
|
|
|
}
|
|
|
|
if (adapter->res != NULL)
|
|
|
|
bus_release_resource(dev, SYS_RES_IRQ, rid, adapter->res);
|
2010-03-27 00:21:40 +00:00
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
mem:
|
2008-05-16 18:46:30 +00:00
|
|
|
if (adapter->msix)
|
|
|
|
pci_release_msi(dev);
|
|
|
|
|
|
|
|
if (adapter->msix_mem != NULL)
|
2007-07-11 23:03:16 +00:00
|
|
|
bus_release_resource(dev, SYS_RES_MEMORY,
|
2009-06-24 18:27:07 +00:00
|
|
|
memrid, adapter->msix_mem);
|
2008-05-16 18:46:30 +00:00
|
|
|
|
|
|
|
if (adapter->pci_mem != NULL)
|
|
|
|
bus_release_resource(dev, SYS_RES_MEMORY,
|
|
|
|
PCIR_BAR(0), adapter->pci_mem);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Setup networking device structure and register an interface.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
2010-11-26 23:57:13 +00:00
|
|
|
static int
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_setup_interface(device_t dev, struct adapter *adapter)
|
|
|
|
{
|
2008-05-16 18:46:30 +00:00
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
2009-12-07 21:30:54 +00:00
|
|
|
struct ifnet *ifp;
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
INIT_DEBUGOUT("ixgbe_setup_interface: begin");
|
|
|
|
|
|
|
|
ifp = adapter->ifp = if_alloc(IFT_ETHER);
|
2010-11-26 23:57:13 +00:00
|
|
|
if (ifp == NULL) {
|
|
|
|
device_printf(dev, "can not allocate ifnet structure\n");
|
|
|
|
return (-1);
|
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
|
2012-10-17 19:24:13 +00:00
|
|
|
if_initbaudrate(ifp, IF_Gbps(10));
|
2007-07-11 23:03:16 +00:00
|
|
|
ifp->if_init = ixgbe_init;
|
|
|
|
ifp->if_softc = adapter;
|
|
|
|
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
|
|
|
|
ifp->if_ioctl = ixgbe_ioctl;
|
2009-06-24 18:27:07 +00:00
|
|
|
#if __FreeBSD_version >= 800000
|
|
|
|
ifp->if_transmit = ixgbe_mq_start;
|
|
|
|
ifp->if_qflush = ixgbe_qflush;
|
2012-09-26 18:11:43 +00:00
|
|
|
#else
|
|
|
|
ifp->if_start = ixgbe_start;
|
|
|
|
IFQ_SET_MAXLEN(&ifp->if_snd, adapter->num_tx_desc - 2);
|
2009-06-24 18:27:07 +00:00
|
|
|
#endif
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
ether_ifattach(ifp, adapter->hw.mac.addr);
|
|
|
|
|
|
|
|
adapter->max_frame_size =
|
|
|
|
ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Tell the upper layer(s) we support long frames.
|
|
|
|
*/
|
|
|
|
ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
|
|
|
|
|
2012-05-25 03:02:56 +00:00
|
|
|
ifp->if_capabilities |= IFCAP_HWCSUM | IFCAP_TSO | IFCAP_VLAN_HWCSUM;
|
2010-11-26 22:46:32 +00:00
|
|
|
ifp->if_capabilities |= IFCAP_JUMBO_MTU;
|
A few important fixes:
- Testing TSO6 has led me to discover that HW RSC is
a problematic feature, it is ONLY designed to work
with IPv4 in the first place, and if IP forwarding
is done it can't be disabled as LRO in the stack,
also initial testing we've done at Intel shows an
equal performance using TSO[46] on the TX and LRO
on RX, if you ran older code on 82599 or later hardware
you actually could have detrimental performance for
this reason. So I am disabling the feature by default
and all our adapters will now use LRO instead.
- If you have flow control off and multiple queues it
was possible when the buffer of one queue becomes
full that all RX movement is stalled, to eliminate
this problem a feature bit is now set that will allow
packets to be dropped when full rather than stall.
Note, the default is to have flow control on, and this
keeps this from happening.
- Because of the recent fixes in the stack, LRO is now
auto-disabled when problematic, so I have decided to
enable it by default in the capabilities in the driver.
- There are some 1G modules used by some customers, a couple
small tweaks to properly support those in the media code.
- A note: we have now done some testing of TSO6 and using
LRO with IPv6 and it all works great!! Seeing line rate
in both directions in best cases. Thanks bz for your
excellent work!!
2012-10-31 23:50:36 +00:00
|
|
|
ifp->if_capabilities |= IFCAP_LRO;
|
2011-06-02 00:34:57 +00:00
|
|
|
ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING
|
|
|
|
| IFCAP_VLAN_HWTSO
|
|
|
|
| IFCAP_VLAN_MTU;
|
2007-07-11 23:03:16 +00:00
|
|
|
ifp->if_capenable = ifp->if_capabilities;
|
|
|
|
|
2010-11-26 22:46:32 +00:00
|
|
|
/*
|
2011-06-02 00:34:57 +00:00
|
|
|
** Don't turn this on by default, if vlans are
|
2010-11-26 22:46:32 +00:00
|
|
|
** created on another pseudo device (eg. lagg)
|
|
|
|
** then vlan events are not passed thru, breaking
|
|
|
|
** operation, but with HW FILTER off it works. If
|
2011-06-02 00:34:57 +00:00
|
|
|
** using vlans directly on the ixgbe driver you can
|
2010-11-26 22:46:32 +00:00
|
|
|
** enable this and get full hardware tag filtering.
|
|
|
|
*/
|
|
|
|
ifp->if_capabilities |= IFCAP_VLAN_HWFILTER;
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/*
|
|
|
|
* Specify the media types supported by this adapter and register
|
|
|
|
* callbacks to update media and link information
|
|
|
|
*/
|
|
|
|
ifmedia_init(&adapter->media, IFM_IMASK, ixgbe_media_change,
|
|
|
|
ixgbe_media_status);
|
2011-01-19 19:36:27 +00:00
|
|
|
ifmedia_add(&adapter->media, IFM_ETHER | adapter->optics, 0, NULL);
|
|
|
|
ifmedia_set(&adapter->media, IFM_ETHER | adapter->optics);
|
2008-11-26 23:41:18 +00:00
|
|
|
if (hw->device_id == IXGBE_DEV_ID_82598AT) {
|
2008-05-16 18:46:30 +00:00
|
|
|
ifmedia_add(&adapter->media,
|
|
|
|
IFM_ETHER | IFM_1000_T | IFM_FDX, 0, NULL);
|
|
|
|
ifmedia_add(&adapter->media,
|
|
|
|
IFM_ETHER | IFM_1000_T, 0, NULL);
|
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
ifmedia_add(&adapter->media, IFM_ETHER | IFM_AUTO, 0, NULL);
|
|
|
|
ifmedia_set(&adapter->media, IFM_ETHER | IFM_AUTO);
|
2010-03-27 00:21:40 +00:00
|
|
|
|
2010-11-26 23:57:13 +00:00
|
|
|
return (0);
|
2009-12-07 21:30:54 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
ixgbe_config_link(struct adapter *adapter)
|
|
|
|
{
|
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
|
|
|
u32 autoneg, err = 0;
|
|
|
|
bool sfp, negotiate;
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
sfp = ixgbe_is_sfp(hw);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
if (sfp) {
|
|
|
|
if (hw->phy.multispeed_fiber) {
|
|
|
|
hw->mac.ops.setup_sfp(hw);
|
2010-11-26 22:46:32 +00:00
|
|
|
ixgbe_enable_tx_laser(hw);
|
2009-12-07 21:30:54 +00:00
|
|
|
taskqueue_enqueue(adapter->tq, &adapter->msf_task);
|
|
|
|
} else
|
|
|
|
taskqueue_enqueue(adapter->tq, &adapter->mod_task);
|
|
|
|
} else {
|
|
|
|
if (hw->mac.ops.check_link)
|
|
|
|
err = ixgbe_check_link(hw, &autoneg,
|
|
|
|
&adapter->link_up, FALSE);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
autoneg = hw->phy.autoneg_advertised;
|
|
|
|
if ((!autoneg) && (hw->mac.ops.get_link_capabilities))
|
|
|
|
err = hw->mac.ops.get_link_capabilities(hw,
|
|
|
|
&autoneg, &negotiate);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
if (hw->mac.ops.setup_link)
|
|
|
|
err = hw->mac.ops.setup_link(hw, autoneg,
|
|
|
|
negotiate, adapter->link_up);
|
|
|
|
}
|
|
|
|
out:
|
2007-07-11 23:03:16 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/********************************************************************
|
|
|
|
* Manage DMA'able memory.
|
|
|
|
*******************************************************************/
|
|
|
|
static void
|
|
|
|
ixgbe_dmamap_cb(void *arg, bus_dma_segment_t * segs, int nseg, int error)
|
|
|
|
{
|
|
|
|
if (error)
|
|
|
|
return;
|
|
|
|
*(bus_addr_t *) arg = segs->ds_addr;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
ixgbe_dma_malloc(struct adapter *adapter, bus_size_t size,
|
|
|
|
struct ixgbe_dma_alloc *dma, int mapflags)
|
|
|
|
{
|
|
|
|
device_t dev = adapter->dev;
|
|
|
|
int r;
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
r = bus_dma_tag_create(bus_get_dma_tag(adapter->dev), /* parent */
|
|
|
|
DBA_ALIGN, 0, /* alignment, bounds */
|
2007-07-11 23:03:16 +00:00
|
|
|
BUS_SPACE_MAXADDR, /* lowaddr */
|
|
|
|
BUS_SPACE_MAXADDR, /* highaddr */
|
|
|
|
NULL, NULL, /* filter, filterarg */
|
|
|
|
size, /* maxsize */
|
|
|
|
1, /* nsegments */
|
|
|
|
size, /* maxsegsize */
|
|
|
|
BUS_DMA_ALLOCNOW, /* flags */
|
|
|
|
NULL, /* lockfunc */
|
|
|
|
NULL, /* lockfuncarg */
|
|
|
|
&dma->dma_tag);
|
|
|
|
if (r != 0) {
|
|
|
|
device_printf(dev,"ixgbe_dma_malloc: bus_dma_tag_create failed; "
|
|
|
|
"error %u\n", r);
|
|
|
|
goto fail_0;
|
|
|
|
}
|
|
|
|
r = bus_dmamem_alloc(dma->dma_tag, (void **)&dma->dma_vaddr,
|
|
|
|
BUS_DMA_NOWAIT, &dma->dma_map);
|
|
|
|
if (r != 0) {
|
|
|
|
device_printf(dev,"ixgbe_dma_malloc: bus_dmamem_alloc failed; "
|
|
|
|
"error %u\n", r);
|
|
|
|
goto fail_1;
|
|
|
|
}
|
|
|
|
r = bus_dmamap_load(dma->dma_tag, dma->dma_map, dma->dma_vaddr,
|
|
|
|
size,
|
|
|
|
ixgbe_dmamap_cb,
|
|
|
|
&dma->dma_paddr,
|
|
|
|
mapflags | BUS_DMA_NOWAIT);
|
|
|
|
if (r != 0) {
|
|
|
|
device_printf(dev,"ixgbe_dma_malloc: bus_dmamap_load failed; "
|
|
|
|
"error %u\n", r);
|
|
|
|
goto fail_2;
|
|
|
|
}
|
|
|
|
dma->dma_size = size;
|
|
|
|
return (0);
|
|
|
|
fail_2:
|
|
|
|
bus_dmamem_free(dma->dma_tag, dma->dma_vaddr, dma->dma_map);
|
|
|
|
fail_1:
|
|
|
|
bus_dma_tag_destroy(dma->dma_tag);
|
|
|
|
fail_0:
|
|
|
|
dma->dma_map = NULL;
|
|
|
|
dma->dma_tag = NULL;
|
|
|
|
return (r);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
ixgbe_dma_free(struct adapter *adapter, struct ixgbe_dma_alloc *dma)
|
|
|
|
{
|
2007-09-04 02:31:35 +00:00
|
|
|
bus_dmamap_sync(dma->dma_tag, dma->dma_map,
|
|
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
2007-07-11 23:03:16 +00:00
|
|
|
bus_dmamap_unload(dma->dma_tag, dma->dma_map);
|
|
|
|
bus_dmamem_free(dma->dma_tag, dma->dma_vaddr, dma->dma_map);
|
|
|
|
bus_dma_tag_destroy(dma->dma_tag);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Allocate memory for the transmit and receive rings, and then
|
|
|
|
* the descriptors associated with each, called only once at attach.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static int
|
|
|
|
ixgbe_allocate_queues(struct adapter *adapter)
|
|
|
|
{
|
2010-03-27 00:21:40 +00:00
|
|
|
device_t dev = adapter->dev;
|
|
|
|
struct ix_queue *que;
|
|
|
|
struct tx_ring *txr;
|
|
|
|
struct rx_ring *rxr;
|
2007-09-04 02:31:35 +00:00
|
|
|
int rsize, tsize, error = IXGBE_SUCCESS;
|
2007-07-11 23:03:16 +00:00
|
|
|
int txconf = 0, rxconf = 0;
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
/* First allocate the top level queue structs */
|
|
|
|
if (!(adapter->queues =
|
|
|
|
(struct ix_queue *) malloc(sizeof(struct ix_queue) *
|
|
|
|
adapter->num_queues, M_DEVBUF, M_NOWAIT | M_ZERO))) {
|
|
|
|
device_printf(dev, "Unable to allocate queue memory\n");
|
|
|
|
error = ENOMEM;
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* First allocate the TX ring struct memory */
|
|
|
|
if (!(adapter->tx_rings =
|
|
|
|
(struct tx_ring *) malloc(sizeof(struct tx_ring) *
|
2009-06-24 18:27:07 +00:00
|
|
|
adapter->num_queues, M_DEVBUF, M_NOWAIT | M_ZERO))) {
|
2007-07-11 23:03:16 +00:00
|
|
|
device_printf(dev, "Unable to allocate TX ring memory\n");
|
|
|
|
error = ENOMEM;
|
2010-03-27 00:21:40 +00:00
|
|
|
goto tx_fail;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Next allocate the RX */
|
|
|
|
if (!(adapter->rx_rings =
|
|
|
|
(struct rx_ring *) malloc(sizeof(struct rx_ring) *
|
2009-06-24 18:27:07 +00:00
|
|
|
adapter->num_queues, M_DEVBUF, M_NOWAIT | M_ZERO))) {
|
2007-07-11 23:03:16 +00:00
|
|
|
device_printf(dev, "Unable to allocate RX ring memory\n");
|
|
|
|
error = ENOMEM;
|
|
|
|
goto rx_fail;
|
|
|
|
}
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
/* For the ring itself */
|
2007-09-04 02:31:35 +00:00
|
|
|
tsize = roundup2(adapter->num_tx_desc *
|
2010-03-27 00:21:40 +00:00
|
|
|
sizeof(union ixgbe_adv_tx_desc), DBA_ALIGN);
|
2008-05-16 18:46:30 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/*
|
|
|
|
* Now set up the TX queues, txconf is needed to handle the
|
|
|
|
* possibility that things fail midcourse and we need to
|
|
|
|
* undo memory gracefully
|
|
|
|
*/
|
2009-06-24 18:27:07 +00:00
|
|
|
for (int i = 0; i < adapter->num_queues; i++, txconf++) {
|
2007-07-11 23:03:16 +00:00
|
|
|
/* Set up some basics */
|
|
|
|
txr = &adapter->tx_rings[i];
|
|
|
|
txr->adapter = adapter;
|
|
|
|
txr->me = i;
|
2008-05-16 18:46:30 +00:00
|
|
|
|
|
|
|
/* Initialize the TX side lock */
|
2008-11-26 23:41:18 +00:00
|
|
|
snprintf(txr->mtx_name, sizeof(txr->mtx_name), "%s:tx(%d)",
|
2008-05-16 18:46:30 +00:00
|
|
|
device_get_nameunit(dev), txr->me);
|
2008-11-26 23:41:18 +00:00
|
|
|
mtx_init(&txr->tx_mtx, txr->mtx_name, NULL, MTX_DEF);
|
2007-09-04 02:31:35 +00:00
|
|
|
|
|
|
|
if (ixgbe_dma_malloc(adapter, tsize,
|
2007-07-11 23:03:16 +00:00
|
|
|
&txr->txdma, BUS_DMA_NOWAIT)) {
|
|
|
|
device_printf(dev,
|
|
|
|
"Unable to allocate TX Descriptor memory\n");
|
|
|
|
error = ENOMEM;
|
|
|
|
goto err_tx_desc;
|
|
|
|
}
|
|
|
|
txr->tx_base = (union ixgbe_adv_tx_desc *)txr->txdma.dma_vaddr;
|
2007-09-04 02:31:35 +00:00
|
|
|
bzero((void *)txr->tx_base, tsize);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* Now allocate transmit buffers for the ring */
|
|
|
|
if (ixgbe_allocate_transmit_buffers(txr)) {
|
|
|
|
device_printf(dev,
|
|
|
|
"Critical Failure setting up transmit buffers\n");
|
|
|
|
error = ENOMEM;
|
|
|
|
goto err_tx_desc;
|
|
|
|
}
|
2009-06-24 18:27:07 +00:00
|
|
|
#if __FreeBSD_version >= 800000
|
|
|
|
/* Allocate a buf ring */
|
|
|
|
txr->br = buf_ring_alloc(IXGBE_BR_SIZE, M_DEVBUF,
|
|
|
|
M_WAITOK, &txr->tx_mtx);
|
2010-03-27 00:21:40 +00:00
|
|
|
if (txr->br == NULL) {
|
|
|
|
device_printf(dev,
|
|
|
|
"Critical Failure setting up buf ring\n");
|
|
|
|
error = ENOMEM;
|
|
|
|
goto err_tx_desc;
|
|
|
|
}
|
2009-06-24 18:27:07 +00:00
|
|
|
#endif
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Next the RX queues...
|
|
|
|
*/
|
2007-09-04 02:31:35 +00:00
|
|
|
rsize = roundup2(adapter->num_rx_desc *
|
2010-03-27 00:21:40 +00:00
|
|
|
sizeof(union ixgbe_adv_rx_desc), DBA_ALIGN);
|
2009-06-24 18:27:07 +00:00
|
|
|
for (int i = 0; i < adapter->num_queues; i++, rxconf++) {
|
2007-07-11 23:03:16 +00:00
|
|
|
rxr = &adapter->rx_rings[i];
|
|
|
|
/* Set up some basics */
|
|
|
|
rxr->adapter = adapter;
|
|
|
|
rxr->me = i;
|
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
/* Initialize the RX side lock */
|
|
|
|
snprintf(rxr->mtx_name, sizeof(rxr->mtx_name), "%s:rx(%d)",
|
2008-05-16 18:46:30 +00:00
|
|
|
device_get_nameunit(dev), rxr->me);
|
2008-11-26 23:41:18 +00:00
|
|
|
mtx_init(&rxr->rx_mtx, rxr->mtx_name, NULL, MTX_DEF);
|
2008-05-16 18:46:30 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
if (ixgbe_dma_malloc(adapter, rsize,
|
|
|
|
&rxr->rxdma, BUS_DMA_NOWAIT)) {
|
|
|
|
device_printf(dev,
|
|
|
|
"Unable to allocate RxDescriptor memory\n");
|
|
|
|
error = ENOMEM;
|
|
|
|
goto err_rx_desc;
|
|
|
|
}
|
|
|
|
rxr->rx_base = (union ixgbe_adv_rx_desc *)rxr->rxdma.dma_vaddr;
|
|
|
|
bzero((void *)rxr->rx_base, rsize);
|
|
|
|
|
|
|
|
/* Allocate receive buffers for the ring*/
|
|
|
|
if (ixgbe_allocate_receive_buffers(rxr)) {
|
|
|
|
device_printf(dev,
|
|
|
|
"Critical Failure setting up receive buffers\n");
|
|
|
|
error = ENOMEM;
|
|
|
|
goto err_rx_desc;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
/*
|
|
|
|
** Finally set up the queue holding structs
|
|
|
|
*/
|
|
|
|
for (int i = 0; i < adapter->num_queues; i++) {
|
|
|
|
que = &adapter->queues[i];
|
|
|
|
que->adapter = adapter;
|
|
|
|
que->txr = &adapter->tx_rings[i];
|
|
|
|
que->rxr = &adapter->rx_rings[i];
|
|
|
|
}
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
return (0);
|
|
|
|
|
|
|
|
err_rx_desc:
|
|
|
|
for (rxr = adapter->rx_rings; rxconf > 0; rxr++, rxconf--)
|
|
|
|
ixgbe_dma_free(adapter, &rxr->rxdma);
|
|
|
|
err_tx_desc:
|
|
|
|
for (txr = adapter->tx_rings; txconf > 0; txr++, txconf--)
|
|
|
|
ixgbe_dma_free(adapter, &txr->txdma);
|
|
|
|
free(adapter->rx_rings, M_DEVBUF);
|
|
|
|
rx_fail:
|
|
|
|
free(adapter->tx_rings, M_DEVBUF);
|
2010-03-27 00:21:40 +00:00
|
|
|
tx_fail:
|
|
|
|
free(adapter->queues, M_DEVBUF);
|
2007-07-11 23:03:16 +00:00
|
|
|
fail:
|
|
|
|
return (error);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Allocate memory for tx_buffer structures. The tx_buffer stores all
|
|
|
|
* the information needed to transmit a packet on the wire. This is
|
|
|
|
* called only once at attach, setup is done every reset.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static int
|
|
|
|
ixgbe_allocate_transmit_buffers(struct tx_ring *txr)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = txr->adapter;
|
|
|
|
device_t dev = adapter->dev;
|
|
|
|
struct ixgbe_tx_buf *txbuf;
|
|
|
|
int error, i;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Setup DMA descriptor areas.
|
|
|
|
*/
|
2012-03-12 18:15:08 +00:00
|
|
|
if ((error = bus_dma_tag_create(
|
|
|
|
bus_get_dma_tag(adapter->dev), /* parent */
|
2009-04-10 00:22:48 +00:00
|
|
|
1, 0, /* alignment, bounds */
|
2007-07-11 23:03:16 +00:00
|
|
|
BUS_SPACE_MAXADDR, /* lowaddr */
|
|
|
|
BUS_SPACE_MAXADDR, /* highaddr */
|
|
|
|
NULL, NULL, /* filter, filterarg */
|
|
|
|
IXGBE_TSO_SIZE, /* maxsize */
|
2011-01-19 19:36:27 +00:00
|
|
|
adapter->num_segs, /* nsegments */
|
2007-07-11 23:03:16 +00:00
|
|
|
PAGE_SIZE, /* maxsegsize */
|
|
|
|
0, /* flags */
|
|
|
|
NULL, /* lockfunc */
|
|
|
|
NULL, /* lockfuncarg */
|
|
|
|
&txr->txtag))) {
|
|
|
|
device_printf(dev,"Unable to allocate TX DMA tag\n");
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(txr->tx_buffers =
|
|
|
|
(struct ixgbe_tx_buf *) malloc(sizeof(struct ixgbe_tx_buf) *
|
|
|
|
adapter->num_tx_desc, M_DEVBUF, M_NOWAIT | M_ZERO))) {
|
|
|
|
device_printf(dev, "Unable to allocate tx_buffer memory\n");
|
|
|
|
error = ENOMEM;
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Create the descriptor buffer dma maps */
|
|
|
|
txbuf = txr->tx_buffers;
|
|
|
|
for (i = 0; i < adapter->num_tx_desc; i++, txbuf++) {
|
|
|
|
error = bus_dmamap_create(txr->txtag, 0, &txbuf->map);
|
|
|
|
if (error != 0) {
|
|
|
|
device_printf(dev, "Unable to create TX DMA map\n");
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
|
|
/* We free all, it handles case where we are in the middle */
|
|
|
|
ixgbe_free_transmit_structures(adapter);
|
|
|
|
return (error);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Initialize a transmit ring.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static void
|
|
|
|
ixgbe_setup_transmit_ring(struct tx_ring *txr)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = txr->adapter;
|
|
|
|
struct ixgbe_tx_buf *txbuf;
|
|
|
|
int i;
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
#ifdef DEV_NETMAP
|
|
|
|
struct netmap_adapter *na = NA(adapter->ifp);
|
|
|
|
struct netmap_slot *slot;
|
|
|
|
#endif /* DEV_NETMAP */
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* Clear the old ring contents */
|
2010-03-27 00:21:40 +00:00
|
|
|
IXGBE_TX_LOCK(txr);
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
#ifdef DEV_NETMAP
|
|
|
|
/*
|
|
|
|
* (under lock): if in netmap mode, do some consistency
|
|
|
|
* checks and set slot to entry 0 of the netmap ring.
|
|
|
|
*/
|
|
|
|
slot = netmap_reset(na, NR_TX, txr->me, 0);
|
|
|
|
#endif /* DEV_NETMAP */
|
2007-07-11 23:03:16 +00:00
|
|
|
bzero((void *)txr->tx_base,
|
|
|
|
(sizeof(union ixgbe_adv_tx_desc)) * adapter->num_tx_desc);
|
|
|
|
/* Reset indices */
|
2009-12-07 21:30:54 +00:00
|
|
|
txr->next_avail_desc = 0;
|
|
|
|
txr->next_to_clean = 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* Free any existing tx buffers. */
|
|
|
|
txbuf = txr->tx_buffers;
|
|
|
|
for (i = 0; i < adapter->num_tx_desc; i++, txbuf++) {
|
|
|
|
if (txbuf->m_head != NULL) {
|
|
|
|
bus_dmamap_sync(txr->txtag, txbuf->map,
|
|
|
|
BUS_DMASYNC_POSTWRITE);
|
|
|
|
bus_dmamap_unload(txr->txtag, txbuf->map);
|
|
|
|
m_freem(txbuf->m_head);
|
|
|
|
txbuf->m_head = NULL;
|
|
|
|
}
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
#ifdef DEV_NETMAP
|
|
|
|
/*
|
|
|
|
* In netmap mode, set the map for the packet buffer.
|
|
|
|
* NOTE: Some drivers (not this one) also need to set
|
|
|
|
* the physical buffer address in the NIC ring.
|
|
|
|
* Slots in the netmap ring (indexed by "si") are
|
|
|
|
* kring->nkr_hwofs positions "ahead" wrt the
|
|
|
|
* corresponding slot in the NIC ring. In some drivers
|
2012-02-15 23:13:29 +00:00
|
|
|
* (not here) nkr_hwofs can be negative. Function
|
2012-02-27 19:05:01 +00:00
|
|
|
* netmap_idx_n2k() handles wraparounds properly.
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
*/
|
|
|
|
if (slot) {
|
2012-02-27 19:05:01 +00:00
|
|
|
int si = netmap_idx_n2k(&na->tx_rings[txr->me], i);
|
2012-01-10 19:57:23 +00:00
|
|
|
netmap_load_map(txr->txtag, txbuf->map, NMB(slot + si));
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
}
|
|
|
|
#endif /* DEV_NETMAP */
|
2009-04-10 00:22:48 +00:00
|
|
|
/* Clear the EOP index */
|
|
|
|
txbuf->eop_index = -1;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
#ifdef IXGBE_FDIR
|
|
|
|
/* Set the rate at which we sample packets */
|
2011-04-25 23:34:21 +00:00
|
|
|
if (adapter->hw.mac.type != ixgbe_mac_82598EB)
|
2009-12-07 21:30:54 +00:00
|
|
|
txr->atr_sample = atr_sample_rate;
|
|
|
|
#endif
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* Set number of descriptors available */
|
|
|
|
txr->tx_avail = adapter->num_tx_desc;
|
|
|
|
|
|
|
|
bus_dmamap_sync(txr->txdma.dma_tag, txr->txdma.dma_map,
|
|
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
2010-03-27 00:21:40 +00:00
|
|
|
IXGBE_TX_UNLOCK(txr);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Initialize all transmit rings.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static int
|
|
|
|
ixgbe_setup_transmit_structures(struct adapter *adapter)
|
|
|
|
{
|
|
|
|
struct tx_ring *txr = adapter->tx_rings;
|
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
for (int i = 0; i < adapter->num_queues; i++, txr++)
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_setup_transmit_ring(txr);
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Enable transmit unit.
|
2008-05-16 18:46:30 +00:00
|
|
|
*
|
2007-07-11 23:03:16 +00:00
|
|
|
**********************************************************************/
|
|
|
|
static void
|
|
|
|
ixgbe_initialize_transmit_units(struct adapter *adapter)
|
|
|
|
{
|
2008-05-16 18:46:30 +00:00
|
|
|
struct tx_ring *txr = adapter->tx_rings;
|
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* Setup the Base and Length of the Tx Descriptor Ring */
|
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
for (int i = 0; i < adapter->num_queues; i++, txr++) {
|
2009-04-10 00:22:48 +00:00
|
|
|
u64 tdba = txr->txdma.dma_paddr;
|
2009-12-07 21:30:54 +00:00
|
|
|
u32 txctrl;
|
2008-05-16 18:46:30 +00:00
|
|
|
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_TDBAL(i),
|
2007-07-11 23:03:16 +00:00
|
|
|
(tdba & 0x00000000ffffffffULL));
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_TDBAH(i), (tdba >> 32));
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_TDLEN(i),
|
|
|
|
adapter->num_tx_desc * sizeof(struct ixgbe_legacy_tx_desc));
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
/* Setup the HW Tx Head and Tail descriptor pointers */
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_TDH(i), 0);
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_TDT(i), 0);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
/* Setup Transmit Descriptor Cmd Settings */
|
|
|
|
txr->txd_cmd = IXGBE_TXD_CMD_IFCS;
|
2010-11-26 22:46:32 +00:00
|
|
|
txr->queue_status = IXGBE_QUEUE_IDLE;
|
2009-12-07 21:30:54 +00:00
|
|
|
|
|
|
|
/* Disable Head Writeback */
|
|
|
|
switch (hw->mac.type) {
|
|
|
|
case ixgbe_mac_82598EB:
|
|
|
|
txctrl = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
|
|
|
|
break;
|
|
|
|
case ixgbe_mac_82599EB:
|
2012-01-30 16:42:02 +00:00
|
|
|
case ixgbe_mac_X540:
|
2009-12-07 21:30:54 +00:00
|
|
|
default:
|
|
|
|
txctrl = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(i));
|
|
|
|
break;
|
|
|
|
}
|
2012-07-05 20:51:44 +00:00
|
|
|
txctrl &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
|
2009-12-07 21:30:54 +00:00
|
|
|
switch (hw->mac.type) {
|
|
|
|
case ixgbe_mac_82598EB:
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(i), txctrl);
|
|
|
|
break;
|
|
|
|
case ixgbe_mac_82599EB:
|
2012-01-30 16:42:02 +00:00
|
|
|
case ixgbe_mac_X540:
|
2009-12-07 21:30:54 +00:00
|
|
|
default:
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(i), txctrl);
|
|
|
|
break;
|
|
|
|
}
|
2008-05-16 18:46:30 +00:00
|
|
|
|
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2011-04-25 23:34:21 +00:00
|
|
|
if (hw->mac.type != ixgbe_mac_82598EB) {
|
2009-12-07 21:30:54 +00:00
|
|
|
u32 dmatxctl, rttdcs;
|
2009-04-10 00:22:48 +00:00
|
|
|
dmatxctl = IXGBE_READ_REG(hw, IXGBE_DMATXCTL);
|
|
|
|
dmatxctl |= IXGBE_DMATXCTL_TE;
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, dmatxctl);
|
2009-12-07 21:30:54 +00:00
|
|
|
/* Disable arbiter to set MTQC */
|
|
|
|
rttdcs = IXGBE_READ_REG(hw, IXGBE_RTTDCS);
|
|
|
|
rttdcs |= IXGBE_RTTDCS_ARBDIS;
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs);
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_MTQC, IXGBE_MTQC_64Q_1PB);
|
|
|
|
rttdcs &= ~IXGBE_RTTDCS_ARBDIS;
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs);
|
2009-04-10 00:22:48 +00:00
|
|
|
}
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Free all transmit rings.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static void
|
|
|
|
ixgbe_free_transmit_structures(struct adapter *adapter)
|
|
|
|
{
|
|
|
|
struct tx_ring *txr = adapter->tx_rings;
|
2008-05-16 18:46:30 +00:00
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
for (int i = 0; i < adapter->num_queues; i++, txr++) {
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_TX_LOCK(txr);
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_free_transmit_buffers(txr);
|
|
|
|
ixgbe_dma_free(adapter, &txr->txdma);
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_TX_UNLOCK(txr);
|
|
|
|
IXGBE_TX_LOCK_DESTROY(txr);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
free(adapter->tx_rings, M_DEVBUF);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Free transmit ring related data structures.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static void
|
|
|
|
ixgbe_free_transmit_buffers(struct tx_ring *txr)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = txr->adapter;
|
|
|
|
struct ixgbe_tx_buf *tx_buffer;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
INIT_DEBUGOUT("free_transmit_ring: begin");
|
|
|
|
|
|
|
|
if (txr->tx_buffers == NULL)
|
|
|
|
return;
|
|
|
|
|
|
|
|
tx_buffer = txr->tx_buffers;
|
|
|
|
for (i = 0; i < adapter->num_tx_desc; i++, tx_buffer++) {
|
|
|
|
if (tx_buffer->m_head != NULL) {
|
|
|
|
bus_dmamap_sync(txr->txtag, tx_buffer->map,
|
|
|
|
BUS_DMASYNC_POSTWRITE);
|
|
|
|
bus_dmamap_unload(txr->txtag,
|
|
|
|
tx_buffer->map);
|
|
|
|
m_freem(tx_buffer->m_head);
|
|
|
|
tx_buffer->m_head = NULL;
|
|
|
|
if (tx_buffer->map != NULL) {
|
|
|
|
bus_dmamap_destroy(txr->txtag,
|
|
|
|
tx_buffer->map);
|
|
|
|
tx_buffer->map = NULL;
|
|
|
|
}
|
|
|
|
} else if (tx_buffer->map != NULL) {
|
|
|
|
bus_dmamap_unload(txr->txtag,
|
|
|
|
tx_buffer->map);
|
|
|
|
bus_dmamap_destroy(txr->txtag,
|
|
|
|
tx_buffer->map);
|
|
|
|
tx_buffer->map = NULL;
|
|
|
|
}
|
|
|
|
}
|
2009-06-24 18:27:07 +00:00
|
|
|
#if __FreeBSD_version >= 800000
|
2009-07-24 16:57:49 +00:00
|
|
|
if (txr->br != NULL)
|
|
|
|
buf_ring_free(txr->br, M_DEVBUF);
|
2009-06-24 18:27:07 +00:00
|
|
|
#endif
|
2007-07-11 23:03:16 +00:00
|
|
|
if (txr->tx_buffers != NULL) {
|
|
|
|
free(txr->tx_buffers, M_DEVBUF);
|
|
|
|
txr->tx_buffers = NULL;
|
|
|
|
}
|
|
|
|
if (txr->txtag != NULL) {
|
|
|
|
bus_dma_tag_destroy(txr->txtag);
|
|
|
|
txr->txtag = NULL;
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Advanced Context Descriptor setup for VLAN or CSUM
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
|
Consistently use types in ixgbe driver code:
- {ixgbe,ixv}_header_split is passed to TUNABLE_INT, so delcare it
int, not bool.
- {ixgbe,ixv}_tx_ctx_setup() returns a boolean value, so declare it
bool, not int.
- {ixgbe,ixv}_tso_setup() returns a bool, so declare it bool, not boolean_t.
- {ixgbe,ixv}_txeof() returns a bool, so declare it bool, not boolean_t.
- Do not re-define bool if the symbol already exists.
MFC after: 2 weeks
Sponsored by: Isilon Systems, LLC
2011-12-12 18:27:28 +00:00
|
|
|
static bool
|
2008-05-16 18:46:30 +00:00
|
|
|
ixgbe_tx_ctx_setup(struct tx_ring *txr, struct mbuf *mp)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
|
|
|
struct adapter *adapter = txr->adapter;
|
|
|
|
struct ixgbe_adv_tx_context_desc *TXD;
|
|
|
|
struct ixgbe_tx_buf *tx_buffer;
|
2008-05-16 18:46:30 +00:00
|
|
|
u32 vlan_macip_lens = 0, type_tucmd_mlhl = 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
struct ether_vlan_header *eh;
|
2009-06-24 18:27:07 +00:00
|
|
|
struct ip *ip;
|
2007-07-11 23:03:16 +00:00
|
|
|
struct ip6_hdr *ip6;
|
2008-05-16 18:46:30 +00:00
|
|
|
int ehdrlen, ip_hlen = 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
u16 etype;
|
2008-05-16 18:46:30 +00:00
|
|
|
u8 ipproto = 0;
|
2009-06-24 18:27:07 +00:00
|
|
|
bool offload = TRUE;
|
2009-12-07 21:30:54 +00:00
|
|
|
int ctxd = txr->next_avail_desc;
|
2007-07-11 23:03:16 +00:00
|
|
|
u16 vtag = 0;
|
2007-09-04 02:31:35 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
if ((mp->m_pkthdr.csum_flags & CSUM_OFFLOAD) == 0)
|
|
|
|
offload = FALSE;
|
2008-05-16 18:46:30 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
tx_buffer = &txr->tx_buffers[ctxd];
|
|
|
|
TXD = (struct ixgbe_adv_tx_context_desc *) &txr->tx_base[ctxd];
|
|
|
|
|
|
|
|
/*
|
|
|
|
** In advanced descriptors the vlan tag must
|
|
|
|
** be placed into the descriptor itself.
|
|
|
|
*/
|
|
|
|
if (mp->m_flags & M_VLANTAG) {
|
|
|
|
vtag = htole16(mp->m_pkthdr.ether_vtag);
|
|
|
|
vlan_macip_lens |= (vtag << IXGBE_ADVTXD_VLAN_SHIFT);
|
2009-06-24 18:27:07 +00:00
|
|
|
} else if (offload == FALSE)
|
|
|
|
return FALSE;
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/*
|
|
|
|
* Determine where frame payload starts.
|
|
|
|
* Jump over vlan headers if already present,
|
|
|
|
* helpful for QinQ too.
|
|
|
|
*/
|
|
|
|
eh = mtod(mp, struct ether_vlan_header *);
|
|
|
|
if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN)) {
|
|
|
|
etype = ntohs(eh->evl_proto);
|
|
|
|
ehdrlen = ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN;
|
|
|
|
} else {
|
|
|
|
etype = ntohs(eh->evl_encap_proto);
|
|
|
|
ehdrlen = ETHER_HDR_LEN;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Set the ether header length */
|
|
|
|
vlan_macip_lens |= ehdrlen << IXGBE_ADVTXD_MACLEN_SHIFT;
|
|
|
|
|
|
|
|
switch (etype) {
|
|
|
|
case ETHERTYPE_IP:
|
|
|
|
ip = (struct ip *)(mp->m_data + ehdrlen);
|
|
|
|
ip_hlen = ip->ip_hl << 2;
|
|
|
|
ipproto = ip->ip_p;
|
|
|
|
type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_IPV4;
|
|
|
|
break;
|
|
|
|
case ETHERTYPE_IPV6:
|
|
|
|
ip6 = (struct ip6_hdr *)(mp->m_data + ehdrlen);
|
|
|
|
ip_hlen = sizeof(struct ip6_hdr);
|
2012-05-25 03:02:56 +00:00
|
|
|
/* XXX-BZ this will go badly in case of ext hdrs. */
|
2007-07-11 23:03:16 +00:00
|
|
|
ipproto = ip6->ip6_nxt;
|
|
|
|
type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_IPV6;
|
|
|
|
break;
|
|
|
|
default:
|
2009-06-24 18:27:07 +00:00
|
|
|
offload = FALSE;
|
|
|
|
break;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
vlan_macip_lens |= ip_hlen;
|
|
|
|
type_tucmd_mlhl |= IXGBE_ADVTXD_DCMD_DEXT | IXGBE_ADVTXD_DTYP_CTXT;
|
|
|
|
|
|
|
|
switch (ipproto) {
|
|
|
|
case IPPROTO_TCP:
|
2009-06-24 18:27:07 +00:00
|
|
|
if (mp->m_pkthdr.csum_flags & CSUM_TCP)
|
2007-07-11 23:03:16 +00:00
|
|
|
type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_TCP;
|
|
|
|
break;
|
2009-04-10 00:22:48 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
case IPPROTO_UDP:
|
2009-06-24 18:27:07 +00:00
|
|
|
if (mp->m_pkthdr.csum_flags & CSUM_UDP)
|
2007-07-11 23:03:16 +00:00
|
|
|
type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_UDP;
|
|
|
|
break;
|
2009-04-10 00:22:48 +00:00
|
|
|
|
2010-03-30 19:09:18 +00:00
|
|
|
#if __FreeBSD_version >= 800000
|
|
|
|
case IPPROTO_SCTP:
|
|
|
|
if (mp->m_pkthdr.csum_flags & CSUM_SCTP)
|
|
|
|
type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_SCTP;
|
|
|
|
break;
|
|
|
|
#endif
|
2008-05-16 18:46:30 +00:00
|
|
|
default:
|
2009-06-24 18:27:07 +00:00
|
|
|
offload = FALSE;
|
|
|
|
break;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Now copy bits into descriptor */
|
|
|
|
TXD->vlan_macip_lens |= htole32(vlan_macip_lens);
|
|
|
|
TXD->type_tucmd_mlhl |= htole32(type_tucmd_mlhl);
|
|
|
|
TXD->seqnum_seed = htole32(0);
|
|
|
|
TXD->mss_l4len_idx = htole32(0);
|
|
|
|
|
|
|
|
tx_buffer->m_head = NULL;
|
2009-04-10 00:22:48 +00:00
|
|
|
tx_buffer->eop_index = -1;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* We've consumed the first desc, adjust counters */
|
|
|
|
if (++ctxd == adapter->num_tx_desc)
|
|
|
|
ctxd = 0;
|
2009-12-07 21:30:54 +00:00
|
|
|
txr->next_avail_desc = ctxd;
|
2007-07-11 23:03:16 +00:00
|
|
|
--txr->tx_avail;
|
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
return (offload);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/**********************************************************************
|
|
|
|
*
|
|
|
|
* Setup work for hardware segmentation offload (TSO) on
|
|
|
|
* adapters using advanced tx descriptors
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
Consistently use types in ixgbe driver code:
- {ixgbe,ixv}_header_split is passed to TUNABLE_INT, so delcare it
int, not bool.
- {ixgbe,ixv}_tx_ctx_setup() returns a boolean value, so declare it
bool, not int.
- {ixgbe,ixv}_tso_setup() returns a bool, so declare it bool, not boolean_t.
- {ixgbe,ixv}_txeof() returns a bool, so declare it bool, not boolean_t.
- Do not re-define bool if the symbol already exists.
MFC after: 2 weeks
Sponsored by: Isilon Systems, LLC
2011-12-12 18:27:28 +00:00
|
|
|
static bool
|
2012-05-25 03:02:56 +00:00
|
|
|
ixgbe_tso_setup(struct tx_ring *txr, struct mbuf *mp, u32 *paylen,
|
|
|
|
u32 *olinfo_status)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
|
|
|
struct adapter *adapter = txr->adapter;
|
|
|
|
struct ixgbe_adv_tx_context_desc *TXD;
|
|
|
|
struct ixgbe_tx_buf *tx_buffer;
|
|
|
|
u32 vlan_macip_lens = 0, type_tucmd_mlhl = 0;
|
2012-05-25 03:02:56 +00:00
|
|
|
u32 mss_l4len_idx = 0, len;
|
|
|
|
u16 vtag = 0, eh_type;
|
|
|
|
int ctxd, ehdrlen, ip_hlen, tcp_hlen;
|
2007-07-11 23:03:16 +00:00
|
|
|
struct ether_vlan_header *eh;
|
2012-05-25 03:02:56 +00:00
|
|
|
#ifdef INET6
|
|
|
|
struct ip6_hdr *ip6;
|
|
|
|
#endif
|
|
|
|
#ifdef INET
|
2007-07-11 23:03:16 +00:00
|
|
|
struct ip *ip;
|
2012-05-25 03:02:56 +00:00
|
|
|
#endif
|
2007-07-11 23:03:16 +00:00
|
|
|
struct tcphdr *th;
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Determine where frame payload starts.
|
|
|
|
* Jump over vlan headers if already present
|
|
|
|
*/
|
|
|
|
eh = mtod(mp, struct ether_vlan_header *);
|
2012-05-25 03:02:56 +00:00
|
|
|
if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN)) {
|
2007-07-11 23:03:16 +00:00
|
|
|
ehdrlen = ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN;
|
2012-05-25 03:02:56 +00:00
|
|
|
eh_type = eh->evl_proto;
|
|
|
|
} else {
|
2007-07-11 23:03:16 +00:00
|
|
|
ehdrlen = ETHER_HDR_LEN;
|
2012-05-25 03:02:56 +00:00
|
|
|
eh_type = eh->evl_encap_proto;
|
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* Ensure we have at least the IP+TCP header in the first mbuf. */
|
2012-05-25 03:02:56 +00:00
|
|
|
len = ehdrlen + sizeof(struct tcphdr);
|
|
|
|
switch (ntohs(eh_type)) {
|
|
|
|
#ifdef INET6
|
|
|
|
case ETHERTYPE_IPV6:
|
|
|
|
if (mp->m_len < len + sizeof(struct ip6_hdr))
|
|
|
|
return FALSE;
|
|
|
|
ip6 = (struct ip6_hdr *)(mp->m_data + ehdrlen);
|
|
|
|
/* XXX-BZ For now we do not pretend to support ext. hdrs. */
|
|
|
|
if (ip6->ip6_nxt != IPPROTO_TCP)
|
|
|
|
return FALSE;
|
|
|
|
ip_hlen = sizeof(struct ip6_hdr);
|
|
|
|
th = (struct tcphdr *)((caddr_t)ip6 + ip_hlen);
|
|
|
|
th->th_sum = in6_cksum_pseudo(ip6, 0, IPPROTO_TCP, 0);
|
|
|
|
type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_IPV6;
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
#ifdef INET
|
|
|
|
case ETHERTYPE_IP:
|
|
|
|
if (mp->m_len < len + sizeof(struct ip))
|
|
|
|
return FALSE;
|
|
|
|
ip = (struct ip *)(mp->m_data + ehdrlen);
|
|
|
|
if (ip->ip_p != IPPROTO_TCP)
|
|
|
|
return FALSE;
|
|
|
|
ip->ip_sum = 0;
|
|
|
|
ip_hlen = ip->ip_hl << 2;
|
|
|
|
th = (struct tcphdr *)((caddr_t)ip + ip_hlen);
|
|
|
|
th->th_sum = in_pseudo(ip->ip_src.s_addr,
|
|
|
|
ip->ip_dst.s_addr, htons(IPPROTO_TCP));
|
|
|
|
type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_IPV4;
|
|
|
|
/* Tell transmit desc to also do IPv4 checksum. */
|
|
|
|
*olinfo_status |= IXGBE_TXD_POPTS_IXSM << 8;
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
default:
|
|
|
|
panic("%s: CSUM_TSO but no supported IP version (0x%04x)",
|
|
|
|
__func__, ntohs(eh_type));
|
|
|
|
break;
|
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
ctxd = txr->next_avail_desc;
|
2007-07-11 23:03:16 +00:00
|
|
|
tx_buffer = &txr->tx_buffers[ctxd];
|
|
|
|
TXD = (struct ixgbe_adv_tx_context_desc *) &txr->tx_base[ctxd];
|
|
|
|
|
|
|
|
tcp_hlen = th->th_off << 2;
|
2009-04-10 00:22:48 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* This is used in the transmit desc in encap */
|
2012-05-25 03:02:56 +00:00
|
|
|
*paylen = mp->m_pkthdr.len - ehdrlen - ip_hlen - tcp_hlen;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* VLAN MACLEN IPLEN */
|
|
|
|
if (mp->m_flags & M_VLANTAG) {
|
|
|
|
vtag = htole16(mp->m_pkthdr.ether_vtag);
|
|
|
|
vlan_macip_lens |= (vtag << IXGBE_ADVTXD_VLAN_SHIFT);
|
|
|
|
}
|
|
|
|
|
|
|
|
vlan_macip_lens |= ehdrlen << IXGBE_ADVTXD_MACLEN_SHIFT;
|
|
|
|
vlan_macip_lens |= ip_hlen;
|
|
|
|
TXD->vlan_macip_lens |= htole32(vlan_macip_lens);
|
|
|
|
|
|
|
|
/* ADV DTYPE TUCMD */
|
|
|
|
type_tucmd_mlhl |= IXGBE_ADVTXD_DCMD_DEXT | IXGBE_ADVTXD_DTYP_CTXT;
|
|
|
|
type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_TCP;
|
|
|
|
TXD->type_tucmd_mlhl |= htole32(type_tucmd_mlhl);
|
|
|
|
|
|
|
|
/* MSS L4LEN IDX */
|
|
|
|
mss_l4len_idx |= (mp->m_pkthdr.tso_segsz << IXGBE_ADVTXD_MSS_SHIFT);
|
|
|
|
mss_l4len_idx |= (tcp_hlen << IXGBE_ADVTXD_L4LEN_SHIFT);
|
|
|
|
TXD->mss_l4len_idx = htole32(mss_l4len_idx);
|
|
|
|
|
|
|
|
TXD->seqnum_seed = htole32(0);
|
|
|
|
tx_buffer->m_head = NULL;
|
2009-04-10 00:22:48 +00:00
|
|
|
tx_buffer->eop_index = -1;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
if (++ctxd == adapter->num_tx_desc)
|
|
|
|
ctxd = 0;
|
|
|
|
|
|
|
|
txr->tx_avail--;
|
2009-12-07 21:30:54 +00:00
|
|
|
txr->next_avail_desc = ctxd;
|
2007-07-11 23:03:16 +00:00
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
#ifdef IXGBE_FDIR
|
|
|
|
/*
|
|
|
|
** This routine parses packet headers so that Flow
|
|
|
|
** Director can make a hashed filter table entry
|
|
|
|
** allowing traffic flows to be identified and kept
|
|
|
|
** on the same cpu. This would be a performance
|
|
|
|
** hit, but we only do it at IXGBE_FDIR_RATE of
|
|
|
|
** packets.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
ixgbe_atr(struct tx_ring *txr, struct mbuf *mp)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = txr->adapter;
|
2010-03-27 00:21:40 +00:00
|
|
|
struct ix_queue *que;
|
2009-12-07 21:30:54 +00:00
|
|
|
struct ip *ip;
|
|
|
|
struct tcphdr *th;
|
|
|
|
struct udphdr *uh;
|
|
|
|
struct ether_vlan_header *eh;
|
2011-01-19 19:36:27 +00:00
|
|
|
union ixgbe_atr_hash_dword input = {.dword = 0};
|
|
|
|
union ixgbe_atr_hash_dword common = {.dword = 0};
|
2009-12-07 21:30:54 +00:00
|
|
|
int ehdrlen, ip_hlen;
|
2011-01-19 19:36:27 +00:00
|
|
|
u16 etype;
|
2009-12-07 21:30:54 +00:00
|
|
|
|
|
|
|
eh = mtod(mp, struct ether_vlan_header *);
|
2011-01-19 19:36:27 +00:00
|
|
|
if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN)) {
|
2009-12-07 21:30:54 +00:00
|
|
|
ehdrlen = ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN;
|
2011-01-19 19:36:27 +00:00
|
|
|
etype = eh->evl_proto;
|
|
|
|
} else {
|
2009-12-07 21:30:54 +00:00
|
|
|
ehdrlen = ETHER_HDR_LEN;
|
2011-01-19 19:36:27 +00:00
|
|
|
etype = eh->evl_encap_proto;
|
|
|
|
}
|
2009-12-07 21:30:54 +00:00
|
|
|
|
|
|
|
/* Only handling IPv4 */
|
2011-01-19 19:36:27 +00:00
|
|
|
if (etype != htons(ETHERTYPE_IP))
|
2009-12-07 21:30:54 +00:00
|
|
|
return;
|
|
|
|
|
|
|
|
ip = (struct ip *)(mp->m_data + ehdrlen);
|
|
|
|
ip_hlen = ip->ip_hl << 2;
|
|
|
|
|
|
|
|
/* check if we're UDP or TCP */
|
2011-01-19 19:36:27 +00:00
|
|
|
switch (ip->ip_p) {
|
2009-12-07 21:30:54 +00:00
|
|
|
case IPPROTO_TCP:
|
|
|
|
th = (struct tcphdr *)((caddr_t)ip + ip_hlen);
|
2011-01-19 19:36:27 +00:00
|
|
|
/* src and dst are inverted */
|
|
|
|
common.port.dst ^= th->th_sport;
|
|
|
|
common.port.src ^= th->th_dport;
|
|
|
|
input.formatted.flow_type ^= IXGBE_ATR_FLOW_TYPE_TCPV4;
|
2009-12-07 21:30:54 +00:00
|
|
|
break;
|
|
|
|
case IPPROTO_UDP:
|
|
|
|
uh = (struct udphdr *)((caddr_t)ip + ip_hlen);
|
2011-01-19 19:36:27 +00:00
|
|
|
/* src and dst are inverted */
|
|
|
|
common.port.dst ^= uh->uh_sport;
|
|
|
|
common.port.src ^= uh->uh_dport;
|
|
|
|
input.formatted.flow_type ^= IXGBE_ATR_FLOW_TYPE_UDPV4;
|
2009-12-07 21:30:54 +00:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2011-01-19 19:36:27 +00:00
|
|
|
input.formatted.vlan_id = htobe16(mp->m_pkthdr.ether_vtag);
|
|
|
|
if (mp->m_pkthdr.ether_vtag)
|
|
|
|
common.flex_bytes ^= htons(ETHERTYPE_VLAN);
|
|
|
|
else
|
|
|
|
common.flex_bytes ^= etype;
|
|
|
|
common.ip ^= ip->ip_src.s_addr ^ ip->ip_dst.s_addr;
|
2009-12-07 21:30:54 +00:00
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
que = &adapter->queues[txr->me];
|
2011-01-19 19:36:27 +00:00
|
|
|
/*
|
|
|
|
** This assumes the Rx queue and Tx
|
|
|
|
** queue are bound to the same CPU
|
|
|
|
*/
|
2009-12-07 21:30:54 +00:00
|
|
|
ixgbe_fdir_add_signature_filter_82599(&adapter->hw,
|
2011-01-19 19:36:27 +00:00
|
|
|
input, common, que->msix);
|
2009-12-07 21:30:54 +00:00
|
|
|
}
|
2011-01-19 19:36:27 +00:00
|
|
|
#endif /* IXGBE_FDIR */
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/**********************************************************************
|
|
|
|
*
|
|
|
|
* Examine each tx_buffer in the used queue. If the hardware is done
|
|
|
|
* processing the packet then free associated resources. The
|
|
|
|
* tx_buffer is put back on the free queue.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
Consistently use types in ixgbe driver code:
- {ixgbe,ixv}_header_split is passed to TUNABLE_INT, so delcare it
int, not bool.
- {ixgbe,ixv}_tx_ctx_setup() returns a boolean value, so declare it
bool, not int.
- {ixgbe,ixv}_tso_setup() returns a bool, so declare it bool, not boolean_t.
- {ixgbe,ixv}_txeof() returns a bool, so declare it bool, not boolean_t.
- Do not re-define bool if the symbol already exists.
MFC after: 2 weeks
Sponsored by: Isilon Systems, LLC
2011-12-12 18:27:28 +00:00
|
|
|
static bool
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_txeof(struct tx_ring *txr)
|
|
|
|
{
|
2009-12-07 21:30:54 +00:00
|
|
|
struct adapter *adapter = txr->adapter;
|
2007-07-11 23:03:16 +00:00
|
|
|
struct ifnet *ifp = adapter->ifp;
|
2010-11-26 22:46:32 +00:00
|
|
|
u32 first, last, done, processed;
|
2007-07-11 23:03:16 +00:00
|
|
|
struct ixgbe_tx_buf *tx_buffer;
|
2009-04-10 00:22:48 +00:00
|
|
|
struct ixgbe_legacy_tx_desc *tx_desc, *eop_desc;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2009-04-10 00:22:48 +00:00
|
|
|
mtx_assert(&txr->tx_mtx, MA_OWNED);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
#ifdef DEV_NETMAP
|
|
|
|
if (ifp->if_capenable & IFCAP_NETMAP) {
|
|
|
|
struct netmap_adapter *na = NA(ifp);
|
2012-01-26 09:55:16 +00:00
|
|
|
struct netmap_kring *kring = &na->tx_rings[txr->me];
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
|
2012-01-26 09:55:16 +00:00
|
|
|
tx_desc = (struct ixgbe_legacy_tx_desc *)txr->tx_base;
|
|
|
|
|
|
|
|
bus_dmamap_sync(txr->txdma.dma_tag, txr->txdma.dma_map,
|
|
|
|
BUS_DMASYNC_POSTREAD);
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
/*
|
|
|
|
* In netmap mode, all the work is done in the context
|
|
|
|
* of the client thread. Interrupt handlers only wake up
|
|
|
|
* clients, which may be sleeping on individual rings
|
|
|
|
* or on a global resource for all rings.
|
2012-01-26 09:55:16 +00:00
|
|
|
* To implement tx interrupt mitigation, we wake up the client
|
|
|
|
* thread roughly every half ring, even if the NIC interrupts
|
|
|
|
* more frequently. This is implemented as follows:
|
|
|
|
* - ixgbe_txsync() sets kring->nr_kflags with the index of
|
|
|
|
* the slot that should wake up the thread (nkr_num_slots
|
|
|
|
* means the user thread should not be woken up);
|
|
|
|
* - the driver ignores tx interrupts unless netmap_mitigate=0
|
|
|
|
* or the slot has the DD bit set.
|
|
|
|
*
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
* When the driver has separate locks, we need to
|
|
|
|
* release and re-acquire txlock to avoid deadlocks.
|
|
|
|
* XXX see if we can find a better way.
|
|
|
|
*/
|
2012-01-26 09:55:16 +00:00
|
|
|
if (!netmap_mitigate ||
|
|
|
|
(kring->nr_kflags < kring->nkr_num_slots &&
|
|
|
|
tx_desc[kring->nr_kflags].upper.fields.status & IXGBE_TXD_STAT_DD)) {
|
|
|
|
kring->nr_kflags = kring->nkr_num_slots;
|
|
|
|
selwakeuppri(&na->tx_rings[txr->me].si, PI_NET);
|
|
|
|
IXGBE_TX_UNLOCK(txr);
|
|
|
|
IXGBE_CORE_LOCK(adapter);
|
2012-02-27 19:05:01 +00:00
|
|
|
selwakeuppri(&na->tx_si, PI_NET);
|
2012-01-26 09:55:16 +00:00
|
|
|
IXGBE_CORE_UNLOCK(adapter);
|
|
|
|
IXGBE_TX_LOCK(txr);
|
|
|
|
}
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
#endif /* DEV_NETMAP */
|
|
|
|
|
2010-11-26 22:46:32 +00:00
|
|
|
if (txr->tx_avail == adapter->num_tx_desc) {
|
|
|
|
txr->queue_status = IXGBE_QUEUE_IDLE;
|
2007-07-11 23:03:16 +00:00
|
|
|
return FALSE;
|
2010-11-26 22:46:32 +00:00
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-11-26 22:46:32 +00:00
|
|
|
processed = 0;
|
2009-12-07 21:30:54 +00:00
|
|
|
first = txr->next_to_clean;
|
2007-07-11 23:03:16 +00:00
|
|
|
tx_buffer = &txr->tx_buffers[first];
|
|
|
|
/* For cleanup we just use legacy struct */
|
|
|
|
tx_desc = (struct ixgbe_legacy_tx_desc *)&txr->tx_base[first];
|
2009-04-10 00:22:48 +00:00
|
|
|
last = tx_buffer->eop_index;
|
|
|
|
if (last == -1)
|
|
|
|
return FALSE;
|
|
|
|
eop_desc = (struct ixgbe_legacy_tx_desc *)&txr->tx_base[last];
|
2009-12-07 21:30:54 +00:00
|
|
|
|
2009-04-10 00:22:48 +00:00
|
|
|
/*
|
|
|
|
** Get the index of the first descriptor
|
|
|
|
** BEYOND the EOP and call that 'done'.
|
|
|
|
** I do this so the comparison in the
|
|
|
|
** inner while loop below can be simple
|
|
|
|
*/
|
|
|
|
if (++last == adapter->num_tx_desc) last = 0;
|
|
|
|
done = last;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
bus_dmamap_sync(txr->txdma.dma_tag, txr->txdma.dma_map,
|
|
|
|
BUS_DMASYNC_POSTREAD);
|
2009-04-10 00:22:48 +00:00
|
|
|
/*
|
|
|
|
** Only the EOP descriptor of a packet now has the DD
|
|
|
|
** bit set, this is what we look for...
|
|
|
|
*/
|
|
|
|
while (eop_desc->upper.fields.status & IXGBE_TXD_STAT_DD) {
|
|
|
|
/* We clean the range of the packet */
|
2007-07-11 23:03:16 +00:00
|
|
|
while (first != done) {
|
|
|
|
tx_desc->upper.data = 0;
|
|
|
|
tx_desc->lower.data = 0;
|
|
|
|
tx_desc->buffer_addr = 0;
|
2009-12-07 21:30:54 +00:00
|
|
|
++txr->tx_avail;
|
2010-11-26 22:46:32 +00:00
|
|
|
++processed;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
if (tx_buffer->m_head) {
|
2010-03-27 00:21:40 +00:00
|
|
|
txr->bytes +=
|
|
|
|
tx_buffer->m_head->m_pkthdr.len;
|
2007-07-11 23:03:16 +00:00
|
|
|
bus_dmamap_sync(txr->txtag,
|
|
|
|
tx_buffer->map,
|
|
|
|
BUS_DMASYNC_POSTWRITE);
|
|
|
|
bus_dmamap_unload(txr->txtag,
|
|
|
|
tx_buffer->map);
|
|
|
|
m_freem(tx_buffer->m_head);
|
|
|
|
tx_buffer->m_head = NULL;
|
|
|
|
tx_buffer->map = NULL;
|
|
|
|
}
|
2009-04-10 00:22:48 +00:00
|
|
|
tx_buffer->eop_index = -1;
|
2009-12-07 21:30:54 +00:00
|
|
|
txr->watchdog_time = ticks;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
if (++first == adapter->num_tx_desc)
|
|
|
|
first = 0;
|
|
|
|
|
|
|
|
tx_buffer = &txr->tx_buffers[first];
|
|
|
|
tx_desc =
|
|
|
|
(struct ixgbe_legacy_tx_desc *)&txr->tx_base[first];
|
|
|
|
}
|
2010-03-27 00:21:40 +00:00
|
|
|
++txr->packets;
|
|
|
|
++ifp->if_opackets;
|
2008-05-16 18:46:30 +00:00
|
|
|
/* See if there is more work now */
|
2009-04-10 00:22:48 +00:00
|
|
|
last = tx_buffer->eop_index;
|
|
|
|
if (last != -1) {
|
|
|
|
eop_desc =
|
|
|
|
(struct ixgbe_legacy_tx_desc *)&txr->tx_base[last];
|
|
|
|
/* Get next done point */
|
|
|
|
if (++last == adapter->num_tx_desc) last = 0;
|
|
|
|
done = last;
|
|
|
|
} else
|
2007-07-11 23:03:16 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
bus_dmamap_sync(txr->txdma.dma_tag, txr->txdma.dma_map,
|
|
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
txr->next_to_clean = first;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-11-26 22:46:32 +00:00
|
|
|
/*
|
|
|
|
** Watchdog calculation, we know there's
|
|
|
|
** work outstanding or the first return
|
|
|
|
** would have been taken, so none processed
|
|
|
|
** for too long indicates a hang.
|
|
|
|
*/
|
|
|
|
if ((!processed) && ((ticks - txr->watchdog_time) > IXGBE_WATCHDOG))
|
|
|
|
txr->queue_status = IXGBE_QUEUE_HUNG;
|
|
|
|
|
2012-01-30 16:42:02 +00:00
|
|
|
if (txr->tx_avail == adapter->num_tx_desc) {
|
|
|
|
txr->queue_status = IXGBE_QUEUE_IDLE;
|
|
|
|
return (FALSE);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
2010-03-27 00:21:40 +00:00
|
|
|
* Refresh mbuf buffers for RX descriptor rings
|
|
|
|
* - now keeps its own state so discards due to resource
|
|
|
|
* exhaustion are unnecessary, if an mbuf cannot be obtained
|
|
|
|
* it just returns, keeping its placeholder, thus it can simply
|
|
|
|
* be recalled to try again.
|
2007-07-11 23:03:16 +00:00
|
|
|
*
|
|
|
|
**********************************************************************/
|
2010-03-27 00:21:40 +00:00
|
|
|
static void
|
|
|
|
ixgbe_refresh_mbufs(struct rx_ring *rxr, int limit)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
2008-11-26 23:41:18 +00:00
|
|
|
struct adapter *adapter = rxr->adapter;
|
2012-11-30 22:19:18 +00:00
|
|
|
bus_dma_segment_t seg[1];
|
2007-07-11 23:03:16 +00:00
|
|
|
struct ixgbe_rx_buf *rxbuf;
|
2012-11-30 22:19:18 +00:00
|
|
|
struct mbuf *mp;
|
2011-04-25 23:34:21 +00:00
|
|
|
int i, j, nsegs, error;
|
|
|
|
bool refreshed = FALSE;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2011-04-25 23:34:21 +00:00
|
|
|
i = j = rxr->next_to_refresh;
|
|
|
|
/* Control the loop with one beyond */
|
|
|
|
if (++j == adapter->num_rx_desc)
|
|
|
|
j = 0;
|
|
|
|
|
|
|
|
while (j != limit) {
|
2009-12-07 21:30:54 +00:00
|
|
|
rxbuf = &rxr->rx_buffers[i];
|
2012-11-30 22:19:18 +00:00
|
|
|
if (rxbuf->buf == NULL) {
|
2009-12-07 21:30:54 +00:00
|
|
|
mp = m_getjcl(M_DONTWAIT, MT_DATA,
|
|
|
|
M_PKTHDR, adapter->rx_mbuf_sz);
|
|
|
|
if (mp == NULL)
|
2010-03-27 00:21:40 +00:00
|
|
|
goto update;
|
2010-11-26 22:46:32 +00:00
|
|
|
} else
|
2012-11-30 22:19:18 +00:00
|
|
|
mp = rxbuf->buf;
|
2010-11-26 22:46:32 +00:00
|
|
|
|
|
|
|
mp->m_pkthdr.len = mp->m_len = adapter->rx_mbuf_sz;
|
2012-08-31 10:07:38 +00:00
|
|
|
|
|
|
|
/* If we're dealing with an mbuf that was copied rather
|
|
|
|
* than replaced, there's no need to go through busdma.
|
|
|
|
*/
|
|
|
|
if ((rxbuf->flags & IXGBE_RX_COPY) == 0) {
|
|
|
|
/* Get the memory mapping */
|
2012-11-30 22:19:18 +00:00
|
|
|
error = bus_dmamap_load_mbuf_sg(rxr->tag,
|
|
|
|
rxbuf->map, mp, seg, &nsegs, BUS_DMA_NOWAIT);
|
2012-08-31 10:07:38 +00:00
|
|
|
if (error != 0) {
|
|
|
|
printf("Refresh mbufs: payload dmamap load"
|
|
|
|
" failure - %d\n", error);
|
|
|
|
m_free(mp);
|
2012-11-30 22:19:18 +00:00
|
|
|
rxbuf->buf = NULL;
|
2012-08-31 10:07:38 +00:00
|
|
|
goto update;
|
|
|
|
}
|
2012-11-30 22:19:18 +00:00
|
|
|
rxbuf->buf = mp;
|
|
|
|
bus_dmamap_sync(rxr->tag, rxbuf->map,
|
2012-08-31 10:07:38 +00:00
|
|
|
BUS_DMASYNC_PREREAD);
|
2012-11-30 22:19:18 +00:00
|
|
|
rxbuf->addr = rxr->rx_base[i].read.pkt_addr =
|
|
|
|
htole64(seg[0].ds_addr);
|
2012-08-31 10:07:38 +00:00
|
|
|
} else {
|
2012-11-30 22:19:18 +00:00
|
|
|
rxr->rx_base[i].read.pkt_addr = rxbuf->addr;
|
2012-08-31 10:07:38 +00:00
|
|
|
rxbuf->flags &= ~IXGBE_RX_COPY;
|
2009-12-07 21:30:54 +00:00
|
|
|
}
|
2008-11-26 23:41:18 +00:00
|
|
|
|
2011-04-25 23:34:21 +00:00
|
|
|
refreshed = TRUE;
|
|
|
|
/* Next is precalculated */
|
|
|
|
i = j;
|
2010-03-27 00:21:40 +00:00
|
|
|
rxr->next_to_refresh = i;
|
2011-04-25 23:34:21 +00:00
|
|
|
if (++j == adapter->num_rx_desc)
|
|
|
|
j = 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
2010-03-27 00:21:40 +00:00
|
|
|
update:
|
2011-04-25 23:34:21 +00:00
|
|
|
if (refreshed) /* Update hardware tail index */
|
2010-05-19 00:03:48 +00:00
|
|
|
IXGBE_WRITE_REG(&adapter->hw,
|
2011-04-25 23:34:21 +00:00
|
|
|
IXGBE_RDT(rxr->me), rxr->next_to_refresh);
|
2010-03-27 00:21:40 +00:00
|
|
|
return;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Allocate memory for rx_buffer structures. Since we use one
|
|
|
|
* rx_buffer per received packet, the maximum number of rx_buffer's
|
|
|
|
* that we'll need is equal to the number of receive descriptors
|
|
|
|
* that we've allocated.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static int
|
|
|
|
ixgbe_allocate_receive_buffers(struct rx_ring *rxr)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = rxr->adapter;
|
|
|
|
device_t dev = adapter->dev;
|
|
|
|
struct ixgbe_rx_buf *rxbuf;
|
|
|
|
int i, bsize, error;
|
|
|
|
|
|
|
|
bsize = sizeof(struct ixgbe_rx_buf) * adapter->num_rx_desc;
|
|
|
|
if (!(rxr->rx_buffers =
|
|
|
|
(struct ixgbe_rx_buf *) malloc(bsize,
|
|
|
|
M_DEVBUF, M_NOWAIT | M_ZERO))) {
|
|
|
|
device_printf(dev, "Unable to allocate rx_buffer memory\n");
|
|
|
|
error = ENOMEM;
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
2010-05-19 00:03:48 +00:00
|
|
|
if ((error = bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */
|
|
|
|
1, 0, /* alignment, bounds */
|
|
|
|
BUS_SPACE_MAXADDR, /* lowaddr */
|
|
|
|
BUS_SPACE_MAXADDR, /* highaddr */
|
|
|
|
NULL, NULL, /* filter, filterarg */
|
2011-01-19 19:36:27 +00:00
|
|
|
MJUM16BYTES, /* maxsize */
|
2010-05-19 00:03:48 +00:00
|
|
|
1, /* nsegments */
|
2011-01-19 19:36:27 +00:00
|
|
|
MJUM16BYTES, /* maxsegsize */
|
2010-05-19 00:03:48 +00:00
|
|
|
0, /* flags */
|
|
|
|
NULL, /* lockfunc */
|
|
|
|
NULL, /* lockfuncarg */
|
2012-11-30 22:19:18 +00:00
|
|
|
&rxr->tag))) {
|
2010-05-19 00:03:48 +00:00
|
|
|
device_printf(dev, "Unable to create RX DMA tag\n");
|
2007-07-11 23:03:16 +00:00
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < adapter->num_rx_desc; i++, rxbuf++) {
|
|
|
|
rxbuf = &rxr->rx_buffers[i];
|
2012-11-30 22:19:18 +00:00
|
|
|
error = bus_dmamap_create(rxr->tag,
|
|
|
|
BUS_DMA_NOWAIT, &rxbuf->map);
|
2007-07-11 23:03:16 +00:00
|
|
|
if (error) {
|
2012-11-30 22:19:18 +00:00
|
|
|
device_printf(dev, "Unable to create RX dma map\n");
|
2007-07-11 23:03:16 +00:00
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
|
|
|
|
fail:
|
|
|
|
/* Frees all, but can handle partial completion */
|
|
|
|
ixgbe_free_receive_structures(adapter);
|
|
|
|
return (error);
|
|
|
|
}
|
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
/*
|
|
|
|
** Used to detect a descriptor that has
|
|
|
|
** been merged by Hardware RSC.
|
|
|
|
*/
|
|
|
|
static inline u32
|
|
|
|
ixgbe_rsc_count(union ixgbe_adv_rx_desc *rx)
|
|
|
|
{
|
|
|
|
return (le32toh(rx->wb.lower.lo_dword.data) &
|
|
|
|
IXGBE_RXDADV_RSCCNT_MASK) >> IXGBE_RXDADV_RSCCNT_SHIFT;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Initialize Hardware RSC (LRO) feature on 82599
|
|
|
|
* for an RX ring, this is toggled by the LRO capability
|
|
|
|
* even though it is transparent to the stack.
|
|
|
|
*
|
A few important fixes:
- Testing TSO6 has led me to discover that HW RSC is
a problematic feature, it is ONLY designed to work
with IPv4 in the first place, and if IP forwarding
is done it can't be disabled as LRO in the stack,
also initial testing we've done at Intel shows an
equal performance using TSO[46] on the TX and LRO
on RX, if you ran older code on 82599 or later hardware
you actually could have detrimental performance for
this reason. So I am disabling the feature by default
and all our adapters will now use LRO instead.
- If you have flow control off and multiple queues it
was possible when the buffer of one queue becomes
full that all RX movement is stalled, to eliminate
this problem a feature bit is now set that will allow
packets to be dropped when full rather than stall.
Note, the default is to have flow control on, and this
keeps this from happening.
- Because of the recent fixes in the stack, LRO is now
auto-disabled when problematic, so I have decided to
enable it by default in the capabilities in the driver.
- There are some 1G modules used by some customers, a couple
small tweaks to properly support those in the media code.
- A note: we have now done some testing of TSO6 and using
LRO with IPv6 and it all works great!! Seeing line rate
in both directions in best cases. Thanks bz for your
excellent work!!
2012-10-31 23:50:36 +00:00
|
|
|
* NOTE: since this HW feature only works with IPV4 and
|
|
|
|
* our testing has shown soft LRO to be as effective
|
|
|
|
* I have decided to disable this by default.
|
|
|
|
*
|
2009-12-07 21:30:54 +00:00
|
|
|
**********************************************************************/
|
|
|
|
static void
|
|
|
|
ixgbe_setup_hw_rsc(struct rx_ring *rxr)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = rxr->adapter;
|
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
2010-03-27 00:21:40 +00:00
|
|
|
u32 rscctrl, rdrxctl;
|
2009-12-07 21:30:54 +00:00
|
|
|
|
A few important fixes:
- Testing TSO6 has led me to discover that HW RSC is
a problematic feature, it is ONLY designed to work
with IPv4 in the first place, and if IP forwarding
is done it can't be disabled as LRO in the stack,
also initial testing we've done at Intel shows an
equal performance using TSO[46] on the TX and LRO
on RX, if you ran older code on 82599 or later hardware
you actually could have detrimental performance for
this reason. So I am disabling the feature by default
and all our adapters will now use LRO instead.
- If you have flow control off and multiple queues it
was possible when the buffer of one queue becomes
full that all RX movement is stalled, to eliminate
this problem a feature bit is now set that will allow
packets to be dropped when full rather than stall.
Note, the default is to have flow control on, and this
keeps this from happening.
- Because of the recent fixes in the stack, LRO is now
auto-disabled when problematic, so I have decided to
enable it by default in the capabilities in the driver.
- There are some 1G modules used by some customers, a couple
small tweaks to properly support those in the media code.
- A note: we have now done some testing of TSO6 and using
LRO with IPv6 and it all works great!! Seeing line rate
in both directions in best cases. Thanks bz for your
excellent work!!
2012-10-31 23:50:36 +00:00
|
|
|
/* If turning LRO/RSC off we need to disable it */
|
|
|
|
if ((adapter->ifp->if_capenable & IFCAP_LRO) == 0) {
|
|
|
|
rscctrl = IXGBE_READ_REG(hw, IXGBE_RSCCTL(rxr->me));
|
|
|
|
rscctrl &= ~IXGBE_RSCCTL_RSCEN;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL);
|
|
|
|
rdrxctl &= ~IXGBE_RDRXCTL_RSCFRSTSIZE;
|
2012-04-13 16:42:54 +00:00
|
|
|
#ifdef DEV_NETMAP /* crcstrip is optional in netmap */
|
|
|
|
if (adapter->ifp->if_capenable & IFCAP_NETMAP && !ix_crcstrip)
|
|
|
|
#endif /* DEV_NETMAP */
|
2009-12-07 21:30:54 +00:00
|
|
|
rdrxctl |= IXGBE_RDRXCTL_CRCSTRIP;
|
2010-03-27 00:21:40 +00:00
|
|
|
rdrxctl |= IXGBE_RDRXCTL_RSCACKC;
|
2009-12-07 21:30:54 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl);
|
|
|
|
|
|
|
|
rscctrl = IXGBE_READ_REG(hw, IXGBE_RSCCTL(rxr->me));
|
|
|
|
rscctrl |= IXGBE_RSCCTL_RSCEN;
|
|
|
|
/*
|
|
|
|
** Limit the total number of descriptors that
|
|
|
|
** can be combined, so it does not exceed 64K
|
|
|
|
*/
|
|
|
|
if (adapter->rx_mbuf_sz == MCLBYTES)
|
|
|
|
rscctrl |= IXGBE_RSCCTL_MAXDESC_16;
|
2011-01-19 19:36:27 +00:00
|
|
|
else if (adapter->rx_mbuf_sz == MJUMPAGESIZE)
|
2009-12-07 21:30:54 +00:00
|
|
|
rscctrl |= IXGBE_RSCCTL_MAXDESC_8;
|
2011-01-19 19:36:27 +00:00
|
|
|
else if (adapter->rx_mbuf_sz == MJUM9BYTES)
|
|
|
|
rscctrl |= IXGBE_RSCCTL_MAXDESC_4;
|
|
|
|
else /* Using 16K cluster */
|
|
|
|
rscctrl |= IXGBE_RSCCTL_MAXDESC_1;
|
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RSCCTL(rxr->me), rscctrl);
|
|
|
|
|
|
|
|
/* Enable TCP header recognition */
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(0),
|
|
|
|
(IXGBE_READ_REG(hw, IXGBE_PSRTYPE(0)) |
|
|
|
|
IXGBE_PSRTYPE_TCPHDR));
|
|
|
|
|
|
|
|
/* Disable RSC for ACK packets */
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RSCDBU,
|
|
|
|
(IXGBE_RSCDBU_RSCACKDIS | IXGBE_READ_REG(hw, IXGBE_RSCDBU)));
|
|
|
|
|
|
|
|
rxr->hw_rsc = TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2010-05-19 00:03:48 +00:00
|
|
|
static void
|
|
|
|
ixgbe_free_receive_ring(struct rx_ring *rxr)
|
|
|
|
{
|
|
|
|
struct adapter *adapter;
|
|
|
|
struct ixgbe_rx_buf *rxbuf;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
adapter = rxr->adapter;
|
|
|
|
for (i = 0; i < adapter->num_rx_desc; i++) {
|
|
|
|
rxbuf = &rxr->rx_buffers[i];
|
2012-11-30 22:19:18 +00:00
|
|
|
if (rxbuf->buf != NULL) {
|
|
|
|
bus_dmamap_sync(rxr->tag, rxbuf->map,
|
2010-05-19 00:03:48 +00:00
|
|
|
BUS_DMASYNC_POSTREAD);
|
2012-11-30 22:19:18 +00:00
|
|
|
bus_dmamap_unload(rxr->tag, rxbuf->map);
|
|
|
|
rxbuf->buf->m_flags |= M_PKTHDR;
|
|
|
|
m_freem(rxbuf->buf);
|
|
|
|
rxbuf->buf = NULL;
|
2010-05-19 00:03:48 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Initialize a receive ring and its buffers.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static int
|
|
|
|
ixgbe_setup_receive_ring(struct rx_ring *rxr)
|
|
|
|
{
|
|
|
|
struct adapter *adapter;
|
2009-06-24 18:27:07 +00:00
|
|
|
struct ifnet *ifp;
|
2008-05-16 18:46:30 +00:00
|
|
|
device_t dev;
|
|
|
|
struct ixgbe_rx_buf *rxbuf;
|
2012-11-30 22:19:18 +00:00
|
|
|
bus_dma_segment_t seg[1];
|
2008-05-16 18:46:30 +00:00
|
|
|
struct lro_ctrl *lro = &rxr->lro;
|
2010-05-19 00:03:48 +00:00
|
|
|
int rsize, nsegs, error = 0;
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
#ifdef DEV_NETMAP
|
|
|
|
struct netmap_adapter *na = NA(rxr->adapter->ifp);
|
|
|
|
struct netmap_slot *slot;
|
|
|
|
#endif /* DEV_NETMAP */
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
adapter = rxr->adapter;
|
2009-06-24 18:27:07 +00:00
|
|
|
ifp = adapter->ifp;
|
2008-05-16 18:46:30 +00:00
|
|
|
dev = adapter->dev;
|
2008-11-26 23:41:18 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* Clear the ring contents */
|
2010-03-27 00:21:40 +00:00
|
|
|
IXGBE_RX_LOCK(rxr);
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
#ifdef DEV_NETMAP
|
|
|
|
/* same as in ixgbe_setup_transmit_ring() */
|
|
|
|
slot = netmap_reset(na, NR_RX, rxr->me, 0);
|
|
|
|
#endif /* DEV_NETMAP */
|
2008-11-26 23:41:18 +00:00
|
|
|
rsize = roundup2(adapter->num_rx_desc *
|
|
|
|
sizeof(union ixgbe_adv_rx_desc), DBA_ALIGN);
|
2007-07-11 23:03:16 +00:00
|
|
|
bzero((void *)rxr->rx_base, rsize);
|
|
|
|
|
2010-05-19 00:03:48 +00:00
|
|
|
/* Free current RX buffer structs and their mbufs */
|
|
|
|
ixgbe_free_receive_ring(rxr);
|
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
/* Now replenish the mbufs */
|
|
|
|
for (int j = 0; j != adapter->num_rx_desc; ++j) {
|
2012-11-30 22:19:18 +00:00
|
|
|
struct mbuf *mp;
|
2009-12-07 21:30:54 +00:00
|
|
|
|
|
|
|
rxbuf = &rxr->rx_buffers[j];
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
#ifdef DEV_NETMAP
|
|
|
|
/*
|
|
|
|
* In netmap mode, fill the map and set the buffer
|
|
|
|
* address in the NIC ring, considering the offset
|
|
|
|
* between the netmap and NIC rings (see comment in
|
|
|
|
* ixgbe_setup_transmit_ring() ). No need to allocate
|
|
|
|
* an mbuf, so end the block with a continue;
|
|
|
|
*/
|
|
|
|
if (slot) {
|
2012-02-27 19:05:01 +00:00
|
|
|
int sj = netmap_idx_n2k(&na->rx_rings[rxr->me], j);
|
2012-01-10 19:57:23 +00:00
|
|
|
uint64_t paddr;
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
void *addr;
|
|
|
|
|
2012-01-10 19:57:23 +00:00
|
|
|
addr = PNMB(slot + sj, &paddr);
|
2012-11-30 22:19:18 +00:00
|
|
|
netmap_load_map(rxr->tag, rxbuf->map, addr);
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
/* Update descriptor */
|
2012-01-10 19:57:23 +00:00
|
|
|
rxr->rx_base[j].read.pkt_addr = htole64(paddr);
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
continue;
|
|
|
|
}
|
|
|
|
#endif /* DEV_NETMAP */
|
2012-11-30 22:19:18 +00:00
|
|
|
rxbuf->buf = m_getjcl(M_NOWAIT, MT_DATA,
|
2009-12-07 21:30:54 +00:00
|
|
|
M_PKTHDR, adapter->rx_mbuf_sz);
|
2012-11-30 22:19:18 +00:00
|
|
|
if (rxbuf->buf == NULL) {
|
2010-06-03 00:00:45 +00:00
|
|
|
error = ENOBUFS;
|
2010-05-19 00:03:48 +00:00
|
|
|
goto fail;
|
2010-06-03 00:00:45 +00:00
|
|
|
}
|
2012-11-30 22:19:18 +00:00
|
|
|
mp = rxbuf->buf;
|
2010-05-19 00:03:48 +00:00
|
|
|
mp->m_pkthdr.len = mp->m_len = adapter->rx_mbuf_sz;
|
2009-12-07 21:30:54 +00:00
|
|
|
/* Get the memory mapping */
|
2012-11-30 22:19:18 +00:00
|
|
|
error = bus_dmamap_load_mbuf_sg(rxr->tag,
|
|
|
|
rxbuf->map, mp, seg,
|
2009-12-07 21:30:54 +00:00
|
|
|
&nsegs, BUS_DMA_NOWAIT);
|
|
|
|
if (error != 0)
|
2010-05-19 00:03:48 +00:00
|
|
|
goto fail;
|
2012-11-30 22:19:18 +00:00
|
|
|
bus_dmamap_sync(rxr->tag,
|
|
|
|
rxbuf->map, BUS_DMASYNC_PREREAD);
|
2009-12-07 21:30:54 +00:00
|
|
|
/* Update descriptor */
|
2012-11-30 22:19:18 +00:00
|
|
|
rxr->rx_base[j].read.pkt_addr = htole64(seg[0].ds_addr);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2009-12-07 21:30:54 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* Setup our descriptor indices */
|
|
|
|
rxr->next_to_check = 0;
|
2010-03-27 00:21:40 +00:00
|
|
|
rxr->next_to_refresh = 0;
|
2009-06-24 18:27:07 +00:00
|
|
|
rxr->lro_enabled = FALSE;
|
2012-08-31 10:07:38 +00:00
|
|
|
rxr->rx_copies = 0;
|
2010-05-19 00:03:48 +00:00
|
|
|
rxr->rx_bytes = 0;
|
2011-04-25 23:34:21 +00:00
|
|
|
rxr->discard = FALSE;
|
2012-01-30 16:42:02 +00:00
|
|
|
rxr->vtag_strip = FALSE;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
bus_dmamap_sync(rxr->rxdma.dma_tag, rxr->rxdma.dma_map,
|
|
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
/*
|
2009-12-07 21:30:54 +00:00
|
|
|
** Now set up the LRO interface:
|
2009-06-24 18:27:07 +00:00
|
|
|
*/
|
A few important fixes:
- Testing TSO6 has led me to discover that HW RSC is
a problematic feature, it is ONLY designed to work
with IPv4 in the first place, and if IP forwarding
is done it can't be disabled as LRO in the stack,
also initial testing we've done at Intel shows an
equal performance using TSO[46] on the TX and LRO
on RX, if you ran older code on 82599 or later hardware
you actually could have detrimental performance for
this reason. So I am disabling the feature by default
and all our adapters will now use LRO instead.
- If you have flow control off and multiple queues it
was possible when the buffer of one queue becomes
full that all RX movement is stalled, to eliminate
this problem a feature bit is now set that will allow
packets to be dropped when full rather than stall.
Note, the default is to have flow control on, and this
keeps this from happening.
- Because of the recent fixes in the stack, LRO is now
auto-disabled when problematic, so I have decided to
enable it by default in the capabilities in the driver.
- There are some 1G modules used by some customers, a couple
small tweaks to properly support those in the media code.
- A note: we have now done some testing of TSO6 and using
LRO with IPv6 and it all works great!! Seeing line rate
in both directions in best cases. Thanks bz for your
excellent work!!
2012-10-31 23:50:36 +00:00
|
|
|
if (ixgbe_rsc_enable)
|
2010-03-27 00:21:40 +00:00
|
|
|
ixgbe_setup_hw_rsc(rxr);
|
|
|
|
else if (ifp->if_capenable & IFCAP_LRO) {
|
2008-05-16 18:46:30 +00:00
|
|
|
int err = tcp_lro_init(lro);
|
2010-05-19 00:03:48 +00:00
|
|
|
if (err) {
|
|
|
|
device_printf(dev, "LRO Initialization failed!\n");
|
|
|
|
goto fail;
|
|
|
|
}
|
2009-12-07 21:30:54 +00:00
|
|
|
INIT_DEBUGOUT("RX Soft LRO Initialized\n");
|
2009-06-24 18:27:07 +00:00
|
|
|
rxr->lro_enabled = TRUE;
|
2008-05-16 18:46:30 +00:00
|
|
|
lro->ifp = adapter->ifp;
|
|
|
|
}
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
IXGBE_RX_UNLOCK(rxr);
|
2007-07-11 23:03:16 +00:00
|
|
|
return (0);
|
2010-05-19 00:03:48 +00:00
|
|
|
|
|
|
|
fail:
|
|
|
|
ixgbe_free_receive_ring(rxr);
|
|
|
|
IXGBE_RX_UNLOCK(rxr);
|
|
|
|
return (error);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Initialize all receive rings.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static int
|
|
|
|
ixgbe_setup_receive_structures(struct adapter *adapter)
|
|
|
|
{
|
|
|
|
struct rx_ring *rxr = adapter->rx_rings;
|
2008-11-26 23:41:18 +00:00
|
|
|
int j;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
for (j = 0; j < adapter->num_queues; j++, rxr++)
|
2007-07-11 23:03:16 +00:00
|
|
|
if (ixgbe_setup_receive_ring(rxr))
|
|
|
|
goto fail;
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
fail:
|
|
|
|
/*
|
|
|
|
* Free RX buffers allocated so far, we will only handle
|
|
|
|
* the rings that completed, the failing case will have
|
2008-11-26 23:41:18 +00:00
|
|
|
* cleaned up for itself. 'j' failed, so its the terminus.
|
2007-07-11 23:03:16 +00:00
|
|
|
*/
|
2009-04-10 00:22:48 +00:00
|
|
|
for (int i = 0; i < j; ++i) {
|
2008-11-26 23:41:18 +00:00
|
|
|
rxr = &adapter->rx_rings[i];
|
2010-05-19 00:03:48 +00:00
|
|
|
ixgbe_free_receive_ring(rxr);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return (ENOBUFS);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
2008-11-26 23:41:18 +00:00
|
|
|
* Setup receive registers and features.
|
2007-07-11 23:03:16 +00:00
|
|
|
*
|
|
|
|
**********************************************************************/
|
2008-11-26 23:41:18 +00:00
|
|
|
#define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2
|
|
|
|
|
2011-09-05 17:54:19 +00:00
|
|
|
#define BSIZEPKT_ROUNDUP ((1<<IXGBE_SRRCTL_BSIZEPKT_SHIFT)-1)
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
static void
|
|
|
|
ixgbe_initialize_receive_units(struct adapter *adapter)
|
|
|
|
{
|
|
|
|
struct rx_ring *rxr = adapter->rx_rings;
|
2008-11-26 23:41:18 +00:00
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
2007-07-11 23:03:16 +00:00
|
|
|
struct ifnet *ifp = adapter->ifp;
|
2009-07-01 16:13:01 +00:00
|
|
|
u32 bufsz, rxctrl, fctrl, srrctl, rxcsum;
|
2008-11-26 23:41:18 +00:00
|
|
|
u32 reta, mrqc = 0, hlreg, random[10];
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Make sure receives are disabled while
|
|
|
|
* setting up the descriptor ring
|
|
|
|
*/
|
2008-11-26 23:41:18 +00:00
|
|
|
rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RXCTRL,
|
2007-07-11 23:03:16 +00:00
|
|
|
rxctrl & ~IXGBE_RXCTRL_RXEN);
|
|
|
|
|
|
|
|
/* Enable broadcasts */
|
2008-11-26 23:41:18 +00:00
|
|
|
fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
|
2007-07-11 23:03:16 +00:00
|
|
|
fctrl |= IXGBE_FCTRL_BAM;
|
2008-11-26 23:41:18 +00:00
|
|
|
fctrl |= IXGBE_FCTRL_DPF;
|
|
|
|
fctrl |= IXGBE_FCTRL_PMCF;
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
/* Set for Jumbo Frames? */
|
2009-07-01 16:13:01 +00:00
|
|
|
hlreg = IXGBE_READ_REG(hw, IXGBE_HLREG0);
|
2011-01-19 19:36:27 +00:00
|
|
|
if (ifp->if_mtu > ETHERMTU)
|
2008-11-26 23:41:18 +00:00
|
|
|
hlreg |= IXGBE_HLREG0_JUMBOEN;
|
2011-01-19 19:36:27 +00:00
|
|
|
else
|
2008-11-26 23:41:18 +00:00
|
|
|
hlreg &= ~IXGBE_HLREG0_JUMBOEN;
|
2012-04-13 16:42:54 +00:00
|
|
|
#ifdef DEV_NETMAP
|
|
|
|
/* crcstrip is conditional in netmap (in RDRXCTL too ?) */
|
|
|
|
if (ifp->if_capenable & IFCAP_NETMAP && !ix_crcstrip)
|
|
|
|
hlreg &= ~IXGBE_HLREG0_RXCRCSTRP;
|
|
|
|
else
|
|
|
|
hlreg |= IXGBE_HLREG0_RXCRCSTRP;
|
|
|
|
#endif /* DEV_NETMAP */
|
2008-11-26 23:41:18 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2012-01-30 16:42:02 +00:00
|
|
|
bufsz = (adapter->rx_mbuf_sz +
|
|
|
|
BSIZEPKT_ROUNDUP) >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
|
2011-01-19 19:36:27 +00:00
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
for (int i = 0; i < adapter->num_queues; i++, rxr++) {
|
2007-07-11 23:03:16 +00:00
|
|
|
u64 rdba = rxr->rxdma.dma_paddr;
|
2009-07-01 16:13:01 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* Setup the Base and Length of the Rx Descriptor Ring */
|
2008-11-26 23:41:18 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RDBAL(i),
|
2007-07-11 23:03:16 +00:00
|
|
|
(rdba & 0x00000000ffffffffULL));
|
2008-11-26 23:41:18 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RDBAH(i), (rdba >> 32));
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RDLEN(i),
|
2007-07-11 23:03:16 +00:00
|
|
|
adapter->num_rx_desc * sizeof(union ixgbe_adv_rx_desc));
|
|
|
|
|
2009-07-01 16:13:01 +00:00
|
|
|
/* Set up the SRRCTL register */
|
|
|
|
srrctl = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i));
|
|
|
|
srrctl &= ~IXGBE_SRRCTL_BSIZEHDR_MASK;
|
|
|
|
srrctl &= ~IXGBE_SRRCTL_BSIZEPKT_MASK;
|
|
|
|
srrctl |= bufsz;
|
2012-11-30 22:19:18 +00:00
|
|
|
srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF;
|
2009-07-01 16:13:01 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(i), srrctl);
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* Setup the HW Rx Head and Tail Descriptor Pointers */
|
2008-11-26 23:41:18 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RDH(i), 0);
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RDT(i), 0);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2011-04-25 23:34:21 +00:00
|
|
|
if (adapter->hw.mac.type != ixgbe_mac_82598EB) {
|
2010-05-19 00:03:48 +00:00
|
|
|
u32 psrtype = IXGBE_PSRTYPE_TCPHDR |
|
|
|
|
IXGBE_PSRTYPE_UDPHDR |
|
|
|
|
IXGBE_PSRTYPE_IPV4HDR |
|
|
|
|
IXGBE_PSRTYPE_IPV6HDR;
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(0), psrtype);
|
|
|
|
}
|
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM);
|
2008-05-16 18:46:30 +00:00
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
/* Setup RSS */
|
2009-06-24 18:27:07 +00:00
|
|
|
if (adapter->num_queues > 1) {
|
2008-11-26 23:41:18 +00:00
|
|
|
int i, j;
|
|
|
|
reta = 0;
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* set up random bits */
|
|
|
|
arc4rand(&random, sizeof(random), 0);
|
2008-07-30 18:15:18 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/* Set up the redirection table */
|
2008-11-26 23:41:18 +00:00
|
|
|
for (i = 0, j = 0; i < 128; i++, j++) {
|
2009-06-24 18:27:07 +00:00
|
|
|
if (j == adapter->num_queues) j = 0;
|
2008-11-26 23:41:18 +00:00
|
|
|
reta = (reta << 8) | (j * 0x11);
|
|
|
|
if ((i & 3) == 3)
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RETA(i >> 2), reta);
|
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* Now fill our hash function seeds */
|
|
|
|
for (int i = 0; i < 10; i++)
|
2008-11-26 23:41:18 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RSSRK(i), random[i]);
|
|
|
|
|
|
|
|
/* Perform hash on these packet types */
|
2009-07-01 16:13:01 +00:00
|
|
|
mrqc = IXGBE_MRQC_RSSEN
|
2008-11-26 23:41:18 +00:00
|
|
|
| IXGBE_MRQC_RSS_FIELD_IPV4
|
|
|
|
| IXGBE_MRQC_RSS_FIELD_IPV4_TCP
|
|
|
|
| IXGBE_MRQC_RSS_FIELD_IPV4_UDP
|
|
|
|
| IXGBE_MRQC_RSS_FIELD_IPV6_EX_TCP
|
|
|
|
| IXGBE_MRQC_RSS_FIELD_IPV6_EX
|
|
|
|
| IXGBE_MRQC_RSS_FIELD_IPV6
|
|
|
|
| IXGBE_MRQC_RSS_FIELD_IPV6_TCP
|
|
|
|
| IXGBE_MRQC_RSS_FIELD_IPV6_UDP
|
|
|
|
| IXGBE_MRQC_RSS_FIELD_IPV6_EX_UDP;
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* RSS and RX IPP Checksum are mutually exclusive */
|
|
|
|
rxcsum |= IXGBE_RXCSUM_PCSD;
|
|
|
|
}
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
if (ifp->if_capenable & IFCAP_RXCSUM)
|
|
|
|
rxcsum |= IXGBE_RXCSUM_PCSD;
|
|
|
|
|
|
|
|
if (!(rxcsum & IXGBE_RXCSUM_PCSD))
|
|
|
|
rxcsum |= IXGBE_RXCSUM_IPPCSE;
|
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Free all receive rings.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static void
|
|
|
|
ixgbe_free_receive_structures(struct adapter *adapter)
|
|
|
|
{
|
|
|
|
struct rx_ring *rxr = adapter->rx_rings;
|
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
for (int i = 0; i < adapter->num_queues; i++, rxr++) {
|
2008-05-16 18:46:30 +00:00
|
|
|
struct lro_ctrl *lro = &rxr->lro;
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_free_receive_buffers(rxr);
|
2008-05-16 18:46:30 +00:00
|
|
|
/* Free LRO memory */
|
|
|
|
tcp_lro_free(lro);
|
2007-07-11 23:03:16 +00:00
|
|
|
/* Free the ring memory as well */
|
|
|
|
ixgbe_dma_free(adapter, &rxr->rxdma);
|
|
|
|
}
|
|
|
|
|
|
|
|
free(adapter->rx_rings, M_DEVBUF);
|
|
|
|
}
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Free receive ring data structures
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
2010-05-19 00:03:48 +00:00
|
|
|
static void
|
2007-07-11 23:03:16 +00:00
|
|
|
ixgbe_free_receive_buffers(struct rx_ring *rxr)
|
|
|
|
{
|
2010-05-19 00:03:48 +00:00
|
|
|
struct adapter *adapter = rxr->adapter;
|
|
|
|
struct ixgbe_rx_buf *rxbuf;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-05-19 00:03:48 +00:00
|
|
|
INIT_DEBUGOUT("free_receive_structures: begin");
|
|
|
|
|
|
|
|
/* Cleanup any existing buffers */
|
2007-07-11 23:03:16 +00:00
|
|
|
if (rxr->rx_buffers != NULL) {
|
|
|
|
for (int i = 0; i < adapter->num_rx_desc; i++) {
|
2010-05-19 00:03:48 +00:00
|
|
|
rxbuf = &rxr->rx_buffers[i];
|
2012-11-30 22:19:18 +00:00
|
|
|
if (rxbuf->buf != NULL) {
|
|
|
|
bus_dmamap_sync(rxr->tag, rxbuf->map,
|
2010-05-19 00:03:48 +00:00
|
|
|
BUS_DMASYNC_POSTREAD);
|
2012-11-30 22:19:18 +00:00
|
|
|
bus_dmamap_unload(rxr->tag, rxbuf->map);
|
|
|
|
rxbuf->buf->m_flags |= M_PKTHDR;
|
|
|
|
m_freem(rxbuf->buf);
|
2010-05-19 00:03:48 +00:00
|
|
|
}
|
2012-11-30 22:19:18 +00:00
|
|
|
rxbuf->buf = NULL;
|
|
|
|
if (rxbuf->map != NULL) {
|
|
|
|
bus_dmamap_destroy(rxr->tag, rxbuf->map);
|
|
|
|
rxbuf->map = NULL;
|
2010-05-19 00:03:48 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
if (rxr->rx_buffers != NULL) {
|
|
|
|
free(rxr->rx_buffers, M_DEVBUF);
|
|
|
|
rxr->rx_buffers = NULL;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
}
|
2010-05-19 00:03:48 +00:00
|
|
|
|
2012-11-30 22:19:18 +00:00
|
|
|
if (rxr->tag != NULL) {
|
|
|
|
bus_dma_tag_destroy(rxr->tag);
|
|
|
|
rxr->tag = NULL;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
2010-05-19 00:03:48 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
static __inline void
|
|
|
|
ixgbe_rx_input(struct rx_ring *rxr, struct ifnet *ifp, struct mbuf *m, u32 ptype)
|
|
|
|
{
|
|
|
|
|
|
|
|
/*
|
2012-05-25 03:02:56 +00:00
|
|
|
* ATM LRO is only for IP/TCP packets and TCP checksum of the packet
|
2010-03-27 00:21:40 +00:00
|
|
|
* should be computed by hardware. Also it should not have VLAN tag in
|
2012-05-25 03:02:56 +00:00
|
|
|
* ethernet header. In case of IPv6 we do not yet support ext. hdrs.
|
2010-03-27 00:21:40 +00:00
|
|
|
*/
|
|
|
|
if (rxr->lro_enabled &&
|
|
|
|
(ifp->if_capenable & IFCAP_VLAN_HWTAGGING) != 0 &&
|
|
|
|
(ptype & IXGBE_RXDADV_PKTTYPE_ETQF) == 0 &&
|
2012-05-25 03:02:56 +00:00
|
|
|
((ptype & (IXGBE_RXDADV_PKTTYPE_IPV4 | IXGBE_RXDADV_PKTTYPE_TCP)) ==
|
|
|
|
(IXGBE_RXDADV_PKTTYPE_IPV4 | IXGBE_RXDADV_PKTTYPE_TCP) ||
|
|
|
|
(ptype & (IXGBE_RXDADV_PKTTYPE_IPV6 | IXGBE_RXDADV_PKTTYPE_TCP)) ==
|
|
|
|
(IXGBE_RXDADV_PKTTYPE_IPV6 | IXGBE_RXDADV_PKTTYPE_TCP)) &&
|
2010-03-27 00:21:40 +00:00
|
|
|
(m->m_pkthdr.csum_flags & (CSUM_DATA_VALID | CSUM_PSEUDO_HDR)) ==
|
|
|
|
(CSUM_DATA_VALID | CSUM_PSEUDO_HDR)) {
|
|
|
|
/*
|
|
|
|
* Send to the stack if:
|
|
|
|
** - LRO not enabled, or
|
|
|
|
** - no LRO resources, or
|
|
|
|
** - lro enqueue fails
|
|
|
|
*/
|
|
|
|
if (rxr->lro.lro_cnt != 0)
|
|
|
|
if (tcp_lro_rx(&rxr->lro, m, 0) == 0)
|
|
|
|
return;
|
|
|
|
}
|
2011-01-19 19:36:27 +00:00
|
|
|
IXGBE_RX_UNLOCK(rxr);
|
2010-03-27 00:21:40 +00:00
|
|
|
(*ifp->if_input)(ifp, m);
|
2011-01-19 19:36:27 +00:00
|
|
|
IXGBE_RX_LOCK(rxr);
|
2010-03-27 00:21:40 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
ixgbe_rx_discard(struct rx_ring *rxr, int i)
|
|
|
|
{
|
|
|
|
struct ixgbe_rx_buf *rbuf;
|
|
|
|
|
|
|
|
rbuf = &rxr->rx_buffers[i];
|
|
|
|
|
2010-11-26 22:46:32 +00:00
|
|
|
if (rbuf->fmp != NULL) {/* Partial chain ? */
|
|
|
|
rbuf->fmp->m_flags |= M_PKTHDR;
|
|
|
|
m_freem(rbuf->fmp);
|
|
|
|
rbuf->fmp = NULL;
|
|
|
|
}
|
2010-03-27 00:21:40 +00:00
|
|
|
|
2010-11-26 22:46:32 +00:00
|
|
|
/*
|
|
|
|
** With advanced descriptors the writeback
|
|
|
|
** clobbers the buffer addrs, so its easier
|
|
|
|
** to just free the existing mbufs and take
|
|
|
|
** the normal refresh path to get new buffers
|
|
|
|
** and mapping.
|
|
|
|
*/
|
2012-11-30 22:19:18 +00:00
|
|
|
if (rbuf->buf) {
|
|
|
|
m_free(rbuf->buf);
|
|
|
|
rbuf->buf = NULL;
|
2010-11-26 22:46:32 +00:00
|
|
|
}
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* This routine executes in interrupt context. It replenishes
|
|
|
|
* the mbufs in the descriptor and sends data which has been
|
|
|
|
* dma'ed into host memory to upper layer.
|
|
|
|
*
|
|
|
|
* We loop at most count times if count is > 0, or until done if
|
|
|
|
* count < 0.
|
|
|
|
*
|
2008-11-26 23:41:18 +00:00
|
|
|
* Return TRUE for more work, FALSE for all clean.
|
2007-07-11 23:03:16 +00:00
|
|
|
*********************************************************************/
|
2008-05-16 18:46:30 +00:00
|
|
|
static bool
|
2010-03-27 00:21:40 +00:00
|
|
|
ixgbe_rxeof(struct ix_queue *que, int count)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
2010-03-27 00:21:40 +00:00
|
|
|
struct adapter *adapter = que->adapter;
|
|
|
|
struct rx_ring *rxr = que->rxr;
|
|
|
|
struct ifnet *ifp = adapter->ifp;
|
2008-05-16 18:46:30 +00:00
|
|
|
struct lro_ctrl *lro = &rxr->lro;
|
|
|
|
struct lro_entry *queued;
|
2010-03-27 00:21:40 +00:00
|
|
|
int i, nextp, processed = 0;
|
|
|
|
u32 staterr = 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
union ixgbe_adv_rx_desc *cur;
|
2010-03-27 00:21:40 +00:00
|
|
|
struct ixgbe_rx_buf *rbuf, *nbuf;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_RX_LOCK(rxr);
|
2008-11-26 23:41:18 +00:00
|
|
|
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
#ifdef DEV_NETMAP
|
|
|
|
if (ifp->if_capenable & IFCAP_NETMAP) {
|
|
|
|
/*
|
2012-01-26 09:55:16 +00:00
|
|
|
* Same as the txeof routine: only wakeup clients on intr.
|
|
|
|
* NKR_PENDINTR in nr_kflags is used to implement interrupt
|
|
|
|
* mitigation (ixgbe_rxsync() will not look for new packets
|
|
|
|
* unless NKR_PENDINTR is set).
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
*/
|
|
|
|
struct netmap_adapter *na = NA(ifp);
|
|
|
|
|
2012-01-26 09:55:16 +00:00
|
|
|
na->rx_rings[rxr->me].nr_kflags |= NKR_PENDINTR;
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
selwakeuppri(&na->rx_rings[rxr->me].si, PI_NET);
|
|
|
|
IXGBE_RX_UNLOCK(rxr);
|
|
|
|
IXGBE_CORE_LOCK(adapter);
|
2012-02-27 19:05:01 +00:00
|
|
|
selwakeuppri(&na->rx_si, PI_NET);
|
1. Fix the handling of link reset while in netmap more.
A link reset now is completely transparent for the netmap client:
even if the NIC resets its own ring (e.g. restarting from 0),
the client will not see any change in the current rx/tx positions,
because the driver will keep track of the offset between the two.
2. make the device-specific code more uniform across different drivers
There were some inconsistencies in the implementation of the netmap
support routines, now drivers have been aligned to a common
code structure.
3. import netmap support for ixgbe . This is implemented as a very
small patch for ixgbe.c (233 lines, 11 chunks, mostly comments:
in total the patch has only 54 lines of new code) , as most of
the code is in an external file sys/dev/netmap/ixgbe_netmap.h ,
following some initial comments from Jack Vogel about making
changes less intrusive.
(Note, i have emailed Jack multiple times asking if he had
comments on this structure of the code; i got no reply so
i assume he is fine with it).
Support for other drivers (em, lem, re, igb) will come later.
"ixgbe" is now the reference driver for netmap support. Both the
external file (sys/dev/netmap/ixgbe_netmap.h) and the device-specific
patches (in sys/dev/ixgbe/ixgbe.c) are heavily commented and should
serve as a reference for other device drivers.
Tested on i386 and amd64 with the pkt-gen program in tools/tools/netmap,
the sender does 14.88 Mpps at 1050 Mhz and 14.2 Mpps at 900 MHz
on an i7-860 with 4 cores and 82599 card. Haven't tried yet more
aggressive optimizations such as adding 'prefetch' instructions
in the time-critical parts of the code.
2011-12-05 12:06:53 +00:00
|
|
|
IXGBE_CORE_UNLOCK(adapter);
|
|
|
|
return (FALSE);
|
|
|
|
}
|
|
|
|
#endif /* DEV_NETMAP */
|
2010-03-27 00:21:40 +00:00
|
|
|
for (i = rxr->next_to_check; count != 0;) {
|
2012-11-30 22:19:18 +00:00
|
|
|
struct mbuf *sendmp, *mp;
|
2010-03-27 00:21:40 +00:00
|
|
|
u32 rsc, ptype;
|
2012-11-30 22:19:18 +00:00
|
|
|
u16 len;
|
2012-01-30 16:42:02 +00:00
|
|
|
u16 vtag = 0;
|
2010-03-27 00:21:40 +00:00
|
|
|
bool eop;
|
|
|
|
|
2010-06-03 00:00:45 +00:00
|
|
|
/* Sync the ring. */
|
|
|
|
bus_dmamap_sync(rxr->rxdma.dma_tag, rxr->rxdma.dma_map,
|
|
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
cur = &rxr->rx_base[i];
|
|
|
|
staterr = le32toh(cur->wb.upper.status_error);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
if ((staterr & IXGBE_RXD_STAT_DD) == 0)
|
|
|
|
break;
|
|
|
|
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
|
|
|
|
break;
|
2008-11-26 23:41:18 +00:00
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
count--;
|
|
|
|
sendmp = NULL;
|
|
|
|
nbuf = NULL;
|
|
|
|
rsc = 0;
|
|
|
|
cur->wb.upper.status_error = 0;
|
|
|
|
rbuf = &rxr->rx_buffers[i];
|
2012-11-30 22:19:18 +00:00
|
|
|
mp = rbuf->buf;
|
2010-03-27 00:21:40 +00:00
|
|
|
|
2012-11-30 22:19:18 +00:00
|
|
|
len = le16toh(cur->wb.upper.length);
|
2010-03-27 00:21:40 +00:00
|
|
|
ptype = le32toh(cur->wb.lower.lo_dword.data) &
|
|
|
|
IXGBE_RXDADV_PKTTYPE_MASK;
|
2009-12-07 21:30:54 +00:00
|
|
|
eop = ((staterr & IXGBE_RXD_STAT_EOP) != 0);
|
|
|
|
|
2010-11-26 22:46:32 +00:00
|
|
|
/* Make sure bad packets are discarded */
|
2010-03-27 00:21:40 +00:00
|
|
|
if (((staterr & IXGBE_RXDADV_ERR_FRAME_ERR_MASK) != 0) ||
|
|
|
|
(rxr->discard)) {
|
|
|
|
ifp->if_ierrors++;
|
|
|
|
rxr->rx_discarded++;
|
2010-11-26 22:46:32 +00:00
|
|
|
if (eop)
|
2010-03-27 00:21:40 +00:00
|
|
|
rxr->discard = FALSE;
|
2010-11-26 22:46:32 +00:00
|
|
|
else
|
|
|
|
rxr->discard = TRUE;
|
2010-03-27 00:21:40 +00:00
|
|
|
ixgbe_rx_discard(rxr, i);
|
|
|
|
goto next_desc;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** On 82599 which supports a hardware
|
|
|
|
** LRO (called HW RSC), packets need
|
|
|
|
** not be fragmented across sequential
|
|
|
|
** descriptors, rather the next descriptor
|
|
|
|
** is indicated in bits of the descriptor.
|
2010-11-26 22:46:32 +00:00
|
|
|
** This also means that we might proceses
|
2010-03-27 00:21:40 +00:00
|
|
|
** more than one packet at a time, something
|
|
|
|
** that has never been true before, it
|
|
|
|
** required eliminating global chain pointers
|
|
|
|
** in favor of what we are doing here. -jfv
|
|
|
|
*/
|
2009-12-07 21:30:54 +00:00
|
|
|
if (!eop) {
|
|
|
|
/*
|
2010-03-27 00:21:40 +00:00
|
|
|
** Figure out the next descriptor
|
|
|
|
** of this frame.
|
2009-12-07 21:30:54 +00:00
|
|
|
*/
|
|
|
|
if (rxr->hw_rsc == TRUE) {
|
|
|
|
rsc = ixgbe_rsc_count(cur);
|
|
|
|
rxr->rsc_num += (rsc - 1);
|
|
|
|
}
|
2010-03-27 00:21:40 +00:00
|
|
|
if (rsc) { /* Get hardware index */
|
2009-12-07 21:30:54 +00:00
|
|
|
nextp = ((staterr &
|
|
|
|
IXGBE_RXDADV_NEXTP_MASK) >>
|
|
|
|
IXGBE_RXDADV_NEXTP_SHIFT);
|
2010-03-27 00:21:40 +00:00
|
|
|
} else { /* Just sequential */
|
2009-12-07 21:30:54 +00:00
|
|
|
nextp = i + 1;
|
|
|
|
if (nextp == adapter->num_rx_desc)
|
|
|
|
nextp = 0;
|
|
|
|
}
|
2010-03-27 00:21:40 +00:00
|
|
|
nbuf = &rxr->rx_buffers[nextp];
|
|
|
|
prefetch(nbuf);
|
2009-12-07 21:30:54 +00:00
|
|
|
}
|
2008-11-26 23:41:18 +00:00
|
|
|
/*
|
2009-12-07 21:30:54 +00:00
|
|
|
** Rather than using the fmp/lmp global pointers
|
|
|
|
** we now keep the head of a packet chain in the
|
2010-03-27 00:21:40 +00:00
|
|
|
** buffer struct and pass this along from one
|
2009-12-07 21:30:54 +00:00
|
|
|
** descriptor to the next, until we get EOP.
|
2008-11-26 23:41:18 +00:00
|
|
|
*/
|
2012-11-30 22:19:18 +00:00
|
|
|
mp->m_len = len;
|
|
|
|
/*
|
|
|
|
** See if there is a stored head
|
|
|
|
** that determines what we are
|
|
|
|
*/
|
|
|
|
sendmp = rbuf->fmp;
|
|
|
|
if (sendmp != NULL) { /* secondary frag */
|
|
|
|
rbuf->buf = rbuf->fmp = NULL;
|
|
|
|
mp->m_flags &= ~M_PKTHDR;
|
|
|
|
sendmp->m_pkthdr.len += mp->m_len;
|
2008-11-26 23:41:18 +00:00
|
|
|
} else {
|
|
|
|
/*
|
2012-11-30 22:19:18 +00:00
|
|
|
* Optimize. This might be a small packet,
|
|
|
|
* maybe just a TCP ACK. Do a fast copy that
|
|
|
|
* is cache aligned into a new mbuf, and
|
|
|
|
* leave the old mbuf+cluster for re-use.
|
|
|
|
*/
|
|
|
|
if (eop && len <= IXGBE_RX_COPY_LEN) {
|
|
|
|
sendmp = m_gethdr(M_NOWAIT, MT_DATA);
|
|
|
|
if (sendmp != NULL) {
|
|
|
|
sendmp->m_data +=
|
|
|
|
IXGBE_RX_COPY_ALIGN;
|
|
|
|
ixgbe_bcopy(mp->m_data,
|
|
|
|
sendmp->m_data, len);
|
|
|
|
sendmp->m_len = len;
|
|
|
|
rxr->rx_copies++;
|
|
|
|
rbuf->flags |= IXGBE_RX_COPY;
|
2009-12-07 21:30:54 +00:00
|
|
|
}
|
|
|
|
}
|
2012-11-30 22:19:18 +00:00
|
|
|
if (sendmp == NULL) {
|
|
|
|
rbuf->buf = rbuf->fmp = NULL;
|
|
|
|
sendmp = mp;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* first desc of a non-ps chain */
|
|
|
|
sendmp->m_flags |= M_PKTHDR;
|
|
|
|
sendmp->m_pkthdr.len = mp->m_len;
|
2008-11-26 23:41:18 +00:00
|
|
|
}
|
2010-03-27 00:21:40 +00:00
|
|
|
++processed;
|
2012-11-30 22:19:18 +00:00
|
|
|
|
|
|
|
/* Pass the head pointer on */
|
|
|
|
if (eop == 0) {
|
|
|
|
nbuf->fmp = sendmp;
|
|
|
|
sendmp = NULL;
|
|
|
|
mp->m_next = nbuf->buf;
|
|
|
|
} else { /* Sending this frame */
|
2010-03-27 00:21:40 +00:00
|
|
|
sendmp->m_pkthdr.rcvif = ifp;
|
|
|
|
ifp->if_ipackets++;
|
|
|
|
rxr->rx_packets++;
|
|
|
|
/* capture data for AIM */
|
|
|
|
rxr->bytes += sendmp->m_pkthdr.len;
|
|
|
|
rxr->rx_bytes += sendmp->m_pkthdr.len;
|
2012-11-30 22:19:18 +00:00
|
|
|
/* Process vlan info */
|
|
|
|
if ((rxr->vtag_strip) &&
|
|
|
|
(staterr & IXGBE_RXD_STAT_VP))
|
|
|
|
vtag = le16toh(cur->wb.upper.vlan);
|
|
|
|
if (vtag) {
|
|
|
|
sendmp->m_pkthdr.ether_vtag = vtag;
|
|
|
|
sendmp->m_flags |= M_VLANTAG;
|
|
|
|
}
|
2010-03-27 00:21:40 +00:00
|
|
|
if ((ifp->if_capenable & IFCAP_RXCSUM) != 0)
|
2010-03-30 19:09:18 +00:00
|
|
|
ixgbe_rx_checksum(staterr, sendmp, ptype);
|
2009-06-24 18:27:07 +00:00
|
|
|
#if __FreeBSD_version >= 800000
|
2010-03-27 00:21:40 +00:00
|
|
|
sendmp->m_pkthdr.flowid = que->msix;
|
|
|
|
sendmp->m_flags |= M_FLOWID;
|
2009-06-24 18:27:07 +00:00
|
|
|
#endif
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
2010-03-27 00:21:40 +00:00
|
|
|
next_desc:
|
2007-07-11 23:03:16 +00:00
|
|
|
bus_dmamap_sync(rxr->rxdma.dma_tag, rxr->rxdma.dma_map,
|
|
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
/* Advance our pointers to the next descriptor. */
|
2007-07-11 23:03:16 +00:00
|
|
|
if (++i == adapter->num_rx_desc)
|
|
|
|
i = 0;
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
/* Now send to the stack or do LRO */
|
2011-01-19 19:36:27 +00:00
|
|
|
if (sendmp != NULL) {
|
|
|
|
rxr->next_to_check = i;
|
2010-03-27 00:21:40 +00:00
|
|
|
ixgbe_rx_input(rxr, ifp, sendmp, ptype);
|
2011-01-19 19:36:27 +00:00
|
|
|
i = rxr->next_to_check;
|
|
|
|
}
|
2008-11-26 23:41:18 +00:00
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
/* Every 8 descriptors we go to refresh mbufs */
|
2009-12-07 21:30:54 +00:00
|
|
|
if (processed == 8) {
|
2010-03-27 00:21:40 +00:00
|
|
|
ixgbe_refresh_mbufs(rxr, i);
|
2009-12-07 21:30:54 +00:00
|
|
|
processed = 0;
|
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
/* Refresh any remaining buf structs */
|
2011-04-25 23:34:21 +00:00
|
|
|
if (ixgbe_rx_unrefreshed(rxr))
|
2010-03-27 00:21:40 +00:00
|
|
|
ixgbe_refresh_mbufs(rxr, i);
|
2009-12-07 21:30:54 +00:00
|
|
|
|
|
|
|
rxr->next_to_check = i;
|
2008-05-16 18:46:30 +00:00
|
|
|
|
|
|
|
/*
|
2008-11-26 23:41:18 +00:00
|
|
|
* Flush any outstanding LRO work
|
|
|
|
*/
|
2010-03-27 00:21:40 +00:00
|
|
|
while ((queued = SLIST_FIRST(&lro->lro_active)) != NULL) {
|
2008-05-16 18:46:30 +00:00
|
|
|
SLIST_REMOVE_HEAD(&lro->lro_active, next);
|
|
|
|
tcp_lro_flush(lro, queued);
|
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
IXGBE_RX_UNLOCK(rxr);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
/*
|
2010-03-27 00:21:40 +00:00
|
|
|
** We still have cleaning to do?
|
|
|
|
** Schedule another interrupt if so.
|
2008-11-26 23:41:18 +00:00
|
|
|
*/
|
2010-03-27 00:21:40 +00:00
|
|
|
if ((staterr & IXGBE_RXD_STAT_DD) != 0) {
|
|
|
|
ixgbe_rearm_queues(adapter, (u64)(1 << que->msix));
|
|
|
|
return (TRUE);
|
2008-11-26 23:41:18 +00:00
|
|
|
}
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
return (FALSE);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/*********************************************************************
|
|
|
|
*
|
|
|
|
* Verify that the hardware indicated that the checksum is valid.
|
|
|
|
* Inform the stack about the status of checksum so that stack
|
|
|
|
* doesn't spend time verifying the checksum.
|
|
|
|
*
|
|
|
|
*********************************************************************/
|
|
|
|
static void
|
2010-03-30 19:09:18 +00:00
|
|
|
ixgbe_rx_checksum(u32 staterr, struct mbuf * mp, u32 ptype)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
2010-03-30 19:09:18 +00:00
|
|
|
u16 status = (u16) staterr;
|
|
|
|
u8 errors = (u8) (staterr >> 24);
|
|
|
|
bool sctp = FALSE;
|
|
|
|
|
|
|
|
if ((ptype & IXGBE_RXDADV_PKTTYPE_ETQF) == 0 &&
|
|
|
|
(ptype & IXGBE_RXDADV_PKTTYPE_SCTP) != 0)
|
|
|
|
sctp = TRUE;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
if (status & IXGBE_RXD_STAT_IPCS) {
|
|
|
|
if (!(errors & IXGBE_RXD_ERR_IPE)) {
|
|
|
|
/* IP Checksum Good */
|
|
|
|
mp->m_pkthdr.csum_flags = CSUM_IP_CHECKED;
|
|
|
|
mp->m_pkthdr.csum_flags |= CSUM_IP_VALID;
|
|
|
|
|
|
|
|
} else
|
|
|
|
mp->m_pkthdr.csum_flags = 0;
|
|
|
|
}
|
|
|
|
if (status & IXGBE_RXD_STAT_L4CS) {
|
2010-03-30 19:09:18 +00:00
|
|
|
u16 type = (CSUM_DATA_VALID | CSUM_PSEUDO_HDR);
|
|
|
|
#if __FreeBSD_version >= 800000
|
|
|
|
if (sctp)
|
|
|
|
type = CSUM_SCTP_VALID;
|
|
|
|
#endif
|
2007-07-11 23:03:16 +00:00
|
|
|
if (!(errors & IXGBE_RXD_ERR_TCPE)) {
|
2010-03-30 19:09:18 +00:00
|
|
|
mp->m_pkthdr.csum_flags |= type;
|
|
|
|
if (!sctp)
|
|
|
|
mp->m_pkthdr.csum_data = htons(0xffff);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
|
2008-07-30 18:15:18 +00:00
|
|
|
/*
|
2009-06-24 18:27:07 +00:00
|
|
|
** This routine is run via an vlan config EVENT,
|
|
|
|
** it enables us to use the HW Filter table since
|
|
|
|
** we can get the vlan id. This just creates the
|
|
|
|
** entry in the soft version of the VFTA, init will
|
|
|
|
** repopulate the real table.
|
|
|
|
*/
|
2007-07-11 23:03:16 +00:00
|
|
|
static void
|
2009-07-24 21:35:52 +00:00
|
|
|
ixgbe_register_vlan(void *arg, struct ifnet *ifp, u16 vtag)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
2008-07-30 18:15:18 +00:00
|
|
|
struct adapter *adapter = ifp->if_softc;
|
2009-06-24 18:27:07 +00:00
|
|
|
u16 index, bit;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2009-07-24 21:35:52 +00:00
|
|
|
if (ifp->if_softc != arg) /* Not our event */
|
2009-07-24 16:57:49 +00:00
|
|
|
return;
|
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
if ((vtag == 0) || (vtag > 4095)) /* Invalid */
|
|
|
|
return;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-11-26 22:46:32 +00:00
|
|
|
IXGBE_CORE_LOCK(adapter);
|
2009-06-24 18:27:07 +00:00
|
|
|
index = (vtag >> 5) & 0x7F;
|
|
|
|
bit = vtag & 0x1F;
|
2010-11-26 22:46:32 +00:00
|
|
|
adapter->shadow_vfta[index] |= (1 << bit);
|
2009-06-24 18:27:07 +00:00
|
|
|
++adapter->num_vlans;
|
2010-11-26 22:46:32 +00:00
|
|
|
ixgbe_init_locked(adapter);
|
|
|
|
IXGBE_CORE_UNLOCK(adapter);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2008-07-30 18:15:18 +00:00
|
|
|
/*
|
2009-06-24 18:27:07 +00:00
|
|
|
** This routine is run via an vlan
|
|
|
|
** unconfig EVENT, remove our entry
|
|
|
|
** in the soft vfta.
|
|
|
|
*/
|
2008-07-30 18:15:18 +00:00
|
|
|
static void
|
2009-07-24 21:35:52 +00:00
|
|
|
ixgbe_unregister_vlan(void *arg, struct ifnet *ifp, u16 vtag)
|
2008-07-30 18:15:18 +00:00
|
|
|
{
|
|
|
|
struct adapter *adapter = ifp->if_softc;
|
2009-06-24 18:27:07 +00:00
|
|
|
u16 index, bit;
|
2008-07-30 18:15:18 +00:00
|
|
|
|
2009-07-24 21:35:52 +00:00
|
|
|
if (ifp->if_softc != arg)
|
2009-07-24 16:57:49 +00:00
|
|
|
return;
|
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
if ((vtag == 0) || (vtag > 4095)) /* Invalid */
|
|
|
|
return;
|
2008-07-30 18:15:18 +00:00
|
|
|
|
2010-11-26 22:46:32 +00:00
|
|
|
IXGBE_CORE_LOCK(adapter);
|
2009-06-24 18:27:07 +00:00
|
|
|
index = (vtag >> 5) & 0x7F;
|
|
|
|
bit = vtag & 0x1F;
|
2010-11-26 22:46:32 +00:00
|
|
|
adapter->shadow_vfta[index] &= ~(1 << bit);
|
2009-06-24 18:27:07 +00:00
|
|
|
--adapter->num_vlans;
|
|
|
|
/* Re-init to load the changes */
|
2010-11-26 22:46:32 +00:00
|
|
|
ixgbe_init_locked(adapter);
|
|
|
|
IXGBE_CORE_UNLOCK(adapter);
|
2009-06-24 18:27:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
ixgbe_setup_vlan_hw_support(struct adapter *adapter)
|
|
|
|
{
|
2010-11-26 22:46:32 +00:00
|
|
|
struct ifnet *ifp = adapter->ifp;
|
2009-06-24 18:27:07 +00:00
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
2012-01-30 16:42:02 +00:00
|
|
|
struct rx_ring *rxr;
|
2009-06-24 18:27:07 +00:00
|
|
|
u32 ctrl;
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
** We get here thru init_locked, meaning
|
|
|
|
** a soft reset, this has already cleared
|
|
|
|
** the VFTA and other state, so if there
|
|
|
|
** have been no vlan's registered do nothing.
|
|
|
|
*/
|
|
|
|
if (adapter->num_vlans == 0)
|
|
|
|
return;
|
|
|
|
|
|
|
|
/*
|
|
|
|
** A soft reset zero's out the VFTA, so
|
|
|
|
** we need to repopulate it now.
|
|
|
|
*/
|
|
|
|
for (int i = 0; i < IXGBE_VFTA_SIZE; i++)
|
2010-11-26 22:46:32 +00:00
|
|
|
if (adapter->shadow_vfta[i] != 0)
|
2009-06-24 18:27:07 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_VFTA(i),
|
2010-11-26 22:46:32 +00:00
|
|
|
adapter->shadow_vfta[i]);
|
2009-06-24 18:27:07 +00:00
|
|
|
|
|
|
|
ctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
|
2010-11-26 22:46:32 +00:00
|
|
|
/* Enable the Filter Table if enabled */
|
|
|
|
if (ifp->if_capenable & IFCAP_VLAN_HWFILTER) {
|
|
|
|
ctrl &= ~IXGBE_VLNCTRL_CFIEN;
|
|
|
|
ctrl |= IXGBE_VLNCTRL_VFE;
|
|
|
|
}
|
2009-06-24 18:27:07 +00:00
|
|
|
if (hw->mac.type == ixgbe_mac_82598EB)
|
|
|
|
ctrl |= IXGBE_VLNCTRL_VME;
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, ctrl);
|
|
|
|
|
2012-01-30 16:42:02 +00:00
|
|
|
/* Setup the queues for vlans */
|
|
|
|
for (int i = 0; i < adapter->num_queues; i++) {
|
|
|
|
rxr = &adapter->rx_rings[i];
|
|
|
|
/* On 82599 the VLAN enable is per/queue in RXDCTL */
|
|
|
|
if (hw->mac.type != ixgbe_mac_82598EB) {
|
2009-06-24 18:27:07 +00:00
|
|
|
ctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
|
2012-01-30 16:42:02 +00:00
|
|
|
ctrl |= IXGBE_RXDCTL_VME;
|
2009-06-24 18:27:07 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(i), ctrl);
|
|
|
|
}
|
2012-01-30 16:42:02 +00:00
|
|
|
rxr->vtag_strip = TRUE;
|
|
|
|
}
|
2008-07-30 18:15:18 +00:00
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
static void
|
|
|
|
ixgbe_enable_intr(struct adapter *adapter)
|
|
|
|
{
|
2008-05-16 18:46:30 +00:00
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
2010-03-27 00:21:40 +00:00
|
|
|
struct ix_queue *que = adapter->queues;
|
2009-06-24 18:27:07 +00:00
|
|
|
u32 mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE);
|
2008-05-16 18:46:30 +00:00
|
|
|
|
2009-04-10 00:22:48 +00:00
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
/* Enable Fan Failure detection */
|
2009-04-10 00:22:48 +00:00
|
|
|
if (hw->device_id == IXGBE_DEV_ID_82598AT)
|
2008-05-16 18:46:30 +00:00
|
|
|
mask |= IXGBE_EIMS_GPI_SDP1;
|
2011-04-25 23:34:21 +00:00
|
|
|
else {
|
2009-04-10 00:22:48 +00:00
|
|
|
mask |= IXGBE_EIMS_ECC;
|
2012-01-30 16:42:02 +00:00
|
|
|
mask |= IXGBE_EIMS_GPI_SDP0;
|
2009-04-10 00:22:48 +00:00
|
|
|
mask |= IXGBE_EIMS_GPI_SDP1;
|
|
|
|
mask |= IXGBE_EIMS_GPI_SDP2;
|
2009-12-07 21:30:54 +00:00
|
|
|
#ifdef IXGBE_FDIR
|
|
|
|
mask |= IXGBE_EIMS_FLOW_DIR;
|
|
|
|
#endif
|
2009-04-10 00:22:48 +00:00
|
|
|
}
|
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EIMS, mask);
|
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
/* With RSS we use auto clear */
|
|
|
|
if (adapter->msix_mem) {
|
2009-04-10 00:22:48 +00:00
|
|
|
mask = IXGBE_EIMS_ENABLE_MASK;
|
2010-11-26 23:57:13 +00:00
|
|
|
/* Don't autoclear Link */
|
2007-07-11 23:03:16 +00:00
|
|
|
mask &= ~IXGBE_EIMS_OTHER;
|
|
|
|
mask &= ~IXGBE_EIMS_LSC;
|
2008-11-26 23:41:18 +00:00
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EIAC, mask);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2009-06-24 18:27:07 +00:00
|
|
|
/*
|
2010-11-26 23:57:13 +00:00
|
|
|
** Now enable all queues, this is done separately to
|
2009-06-24 18:27:07 +00:00
|
|
|
** allow for handling the extended (beyond 32) MSIX
|
|
|
|
** vectors that can be used by 82599
|
|
|
|
*/
|
2010-03-27 00:21:40 +00:00
|
|
|
for (int i = 0; i < adapter->num_queues; i++, que++)
|
|
|
|
ixgbe_enable_queue(adapter, que->msix);
|
2009-06-24 18:27:07 +00:00
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_WRITE_FLUSH(hw);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
ixgbe_disable_intr(struct adapter *adapter)
|
|
|
|
{
|
2008-05-16 18:46:30 +00:00
|
|
|
if (adapter->msix_mem)
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIAC, 0);
|
2009-06-24 18:27:07 +00:00
|
|
|
if (adapter->hw.mac.type == ixgbe_mac_82598EB) {
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, ~0);
|
|
|
|
} else {
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFF0000);
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(0), ~0);
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), ~0);
|
|
|
|
}
|
2008-05-16 18:46:30 +00:00
|
|
|
IXGBE_WRITE_FLUSH(&adapter->hw);
|
2007-07-11 23:03:16 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
u16
|
|
|
|
ixgbe_read_pci_cfg(struct ixgbe_hw *hw, u32 reg)
|
|
|
|
{
|
|
|
|
u16 value;
|
|
|
|
|
|
|
|
value = pci_read_config(((struct ixgbe_osdep *)hw->back)->dev,
|
|
|
|
reg, 2);
|
|
|
|
|
|
|
|
return (value);
|
|
|
|
}
|
|
|
|
|
2009-04-10 00:22:48 +00:00
|
|
|
void
|
|
|
|
ixgbe_write_pci_cfg(struct ixgbe_hw *hw, u32 reg, u16 value)
|
|
|
|
{
|
|
|
|
pci_write_config(((struct ixgbe_osdep *)hw->back)->dev,
|
|
|
|
reg, value, 2);
|
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
/*
|
|
|
|
** Setup the correct IVAR register for a particular MSIX interrupt
|
|
|
|
** (yes this is all very magic and confusing :)
|
|
|
|
** - entry is the register array entry
|
|
|
|
** - vector is the MSIX vector for this queue
|
|
|
|
** - type is RX/TX/MISC
|
|
|
|
*/
|
2007-07-11 23:03:16 +00:00
|
|
|
static void
|
2009-06-24 18:27:07 +00:00
|
|
|
ixgbe_set_ivar(struct adapter *adapter, u8 entry, u8 vector, s8 type)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
2008-11-26 23:41:18 +00:00
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
2007-07-11 23:03:16 +00:00
|
|
|
u32 ivar, index;
|
2008-05-16 18:46:30 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
vector |= IXGBE_IVAR_ALLOC_VAL;
|
2008-11-26 23:41:18 +00:00
|
|
|
|
|
|
|
switch (hw->mac.type) {
|
|
|
|
|
|
|
|
case ixgbe_mac_82598EB:
|
|
|
|
if (type == -1)
|
|
|
|
entry = IXGBE_IVAR_OTHER_CAUSES_INDEX;
|
|
|
|
else
|
|
|
|
entry += (type * 64);
|
|
|
|
index = (entry >> 2) & 0x1F;
|
|
|
|
ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(index));
|
|
|
|
ivar &= ~(0xFF << (8 * (entry & 0x3)));
|
|
|
|
ivar |= (vector << (8 * (entry & 0x3)));
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_IVAR(index), ivar);
|
|
|
|
break;
|
|
|
|
|
2009-04-10 00:22:48 +00:00
|
|
|
case ixgbe_mac_82599EB:
|
2012-01-30 16:42:02 +00:00
|
|
|
case ixgbe_mac_X540:
|
2009-04-10 00:22:48 +00:00
|
|
|
if (type == -1) { /* MISC IVAR */
|
|
|
|
index = (entry & 1) * 8;
|
|
|
|
ivar = IXGBE_READ_REG(hw, IXGBE_IVAR_MISC);
|
|
|
|
ivar &= ~(0xFF << index);
|
|
|
|
ivar |= (vector << index);
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_IVAR_MISC, ivar);
|
|
|
|
} else { /* RX/TX IVARS */
|
|
|
|
index = (16 * (entry & 1)) + (8 * type);
|
|
|
|
ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(entry >> 1));
|
|
|
|
ivar &= ~(0xFF << index);
|
|
|
|
ivar |= (vector << index);
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_IVAR(entry >> 1), ivar);
|
|
|
|
}
|
|
|
|
|
2008-11-26 23:41:18 +00:00
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
ixgbe_configure_ivars(struct adapter *adapter)
|
|
|
|
{
|
2010-03-27 00:21:40 +00:00
|
|
|
struct ix_queue *que = adapter->queues;
|
2010-11-27 01:34:09 +00:00
|
|
|
u32 newitr;
|
|
|
|
|
|
|
|
if (ixgbe_max_interrupt_rate > 0)
|
2012-01-26 09:55:16 +00:00
|
|
|
newitr = (4000000 / ixgbe_max_interrupt_rate) & 0x0FF8;
|
2010-11-27 01:34:09 +00:00
|
|
|
else
|
|
|
|
newitr = 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-03-27 00:21:40 +00:00
|
|
|
for (int i = 0; i < adapter->num_queues; i++, que++) {
|
|
|
|
/* First the RX queue entry */
|
|
|
|
ixgbe_set_ivar(adapter, i, que->msix, 0);
|
|
|
|
/* ... and the TX */
|
|
|
|
ixgbe_set_ivar(adapter, i, que->msix, 1);
|
|
|
|
/* Set an Initial EITR value */
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw,
|
2010-11-27 01:34:09 +00:00
|
|
|
IXGBE_EITR(que->msix), newitr);
|
2010-03-27 00:21:40 +00:00
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* For the Link interrupt */
|
2008-11-26 23:41:18 +00:00
|
|
|
ixgbe_set_ivar(adapter, 1, adapter->linkvec, -1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** ixgbe_sfp_probe - called in the local timer to
|
|
|
|
** determine if a port had optics inserted.
|
|
|
|
*/
|
|
|
|
static bool ixgbe_sfp_probe(struct adapter *adapter)
|
|
|
|
{
|
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
|
|
|
device_t dev = adapter->dev;
|
|
|
|
bool result = FALSE;
|
|
|
|
|
|
|
|
if ((hw->phy.type == ixgbe_phy_nl) &&
|
|
|
|
(hw->phy.sfp_type == ixgbe_sfp_type_not_present)) {
|
|
|
|
s32 ret = hw->phy.ops.identify_sfp(hw);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
ret = hw->phy.ops.reset(hw);
|
|
|
|
if (ret == IXGBE_ERR_SFP_NOT_SUPPORTED) {
|
|
|
|
device_printf(dev,"Unsupported SFP+ module detected!");
|
|
|
|
printf(" Reload driver with supported module.\n");
|
|
|
|
adapter->sfp_probe = FALSE;
|
|
|
|
goto out;
|
|
|
|
} else
|
|
|
|
device_printf(dev,"SFP+ module detected!\n");
|
|
|
|
/* We now have supported optics */
|
|
|
|
adapter->sfp_probe = FALSE;
|
2011-01-19 19:36:27 +00:00
|
|
|
/* Set the optics type so system reports correctly */
|
|
|
|
ixgbe_setup_optics(adapter);
|
2008-11-26 23:41:18 +00:00
|
|
|
result = TRUE;
|
|
|
|
}
|
|
|
|
out:
|
|
|
|
return (result);
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2009-04-10 00:22:48 +00:00
|
|
|
/*
|
|
|
|
** Tasklet handler for MSIX Link interrupts
|
|
|
|
** - do outside interrupt since it might sleep
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
ixgbe_handle_link(void *context, int pending)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = context;
|
|
|
|
|
|
|
|
ixgbe_check_link(&adapter->hw,
|
|
|
|
&adapter->link_speed, &adapter->link_up, 0);
|
|
|
|
ixgbe_update_link_status(adapter);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** Tasklet for handling SFP module interrupts
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
ixgbe_handle_mod(void *context, int pending)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = context;
|
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
|
|
|
device_t dev = adapter->dev;
|
|
|
|
u32 err;
|
|
|
|
|
|
|
|
err = hw->phy.ops.identify_sfp(hw);
|
|
|
|
if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) {
|
|
|
|
device_printf(dev,
|
|
|
|
"Unsupported SFP+ module type was detected.\n");
|
|
|
|
return;
|
|
|
|
}
|
2009-12-07 21:30:54 +00:00
|
|
|
err = hw->mac.ops.setup_sfp(hw);
|
|
|
|
if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) {
|
|
|
|
device_printf(dev,
|
|
|
|
"Setup failure - unsupported SFP+ module type.\n");
|
|
|
|
return;
|
|
|
|
}
|
2009-04-10 00:22:48 +00:00
|
|
|
taskqueue_enqueue(adapter->tq, &adapter->msf_task);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
** Tasklet for handling MSF (multispeed fiber) interrupts
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
ixgbe_handle_msf(void *context, int pending)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = context;
|
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
|
|
|
u32 autoneg;
|
2009-12-07 21:30:54 +00:00
|
|
|
bool negotiate;
|
|
|
|
|
|
|
|
autoneg = hw->phy.autoneg_advertised;
|
|
|
|
if ((!autoneg) && (hw->mac.ops.get_link_capabilities))
|
|
|
|
hw->mac.ops.get_link_capabilities(hw, &autoneg, &negotiate);
|
|
|
|
if (hw->mac.ops.setup_link)
|
|
|
|
hw->mac.ops.setup_link(hw, autoneg, negotiate, TRUE);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef IXGBE_FDIR
|
|
|
|
/*
|
|
|
|
** Tasklet for reinitializing the Flow Director filter table
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
ixgbe_reinit_fdir(void *context, int pending)
|
|
|
|
{
|
|
|
|
struct adapter *adapter = context;
|
2010-01-07 21:01:37 +00:00
|
|
|
struct ifnet *ifp = adapter->ifp;
|
2009-12-07 21:30:54 +00:00
|
|
|
|
|
|
|
if (adapter->fdir_reinit != 1) /* Shouldn't happen */
|
|
|
|
return;
|
|
|
|
ixgbe_reinit_fdir_tables_82599(&adapter->hw);
|
|
|
|
adapter->fdir_reinit = 0;
|
2012-07-05 20:51:44 +00:00
|
|
|
/* re-enable flow director interrupts */
|
|
|
|
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, IXGBE_EIMS_FLOW_DIR);
|
2009-12-07 21:30:54 +00:00
|
|
|
/* Restart the interface */
|
|
|
|
ifp->if_drv_flags |= IFF_DRV_RUNNING;
|
2009-04-10 00:22:48 +00:00
|
|
|
return;
|
|
|
|
}
|
2009-12-07 21:30:54 +00:00
|
|
|
#endif
|
2008-11-26 23:41:18 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/**********************************************************************
|
|
|
|
*
|
|
|
|
* Update the board statistics counters.
|
|
|
|
*
|
|
|
|
**********************************************************************/
|
|
|
|
static void
|
|
|
|
ixgbe_update_stats_counters(struct adapter *adapter)
|
|
|
|
{
|
2010-01-07 21:01:37 +00:00
|
|
|
struct ifnet *ifp = adapter->ifp;
|
2007-07-11 23:03:16 +00:00
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
2008-05-16 18:46:30 +00:00
|
|
|
u32 missed_rx = 0, bprc, lxon, lxoff, total;
|
2009-08-24 20:41:51 +00:00
|
|
|
u64 total_missed_rx = 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
adapter->stats.crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS);
|
2010-11-27 01:34:09 +00:00
|
|
|
adapter->stats.illerrc += IXGBE_READ_REG(hw, IXGBE_ILLERRC);
|
|
|
|
adapter->stats.errbc += IXGBE_READ_REG(hw, IXGBE_ERRBC);
|
|
|
|
adapter->stats.mspdc += IXGBE_READ_REG(hw, IXGBE_MSPDC);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
for (int i = 0; i < 8; i++) {
|
2009-09-11 00:00:23 +00:00
|
|
|
u32 mp;
|
|
|
|
mp = IXGBE_READ_REG(hw, IXGBE_MPC(i));
|
2009-08-24 20:41:51 +00:00
|
|
|
/* missed_rx tallies misses for the gprc workaround */
|
2009-09-11 00:00:23 +00:00
|
|
|
missed_rx += mp;
|
2009-12-07 21:30:54 +00:00
|
|
|
/* global total per queue */
|
2009-09-11 00:00:23 +00:00
|
|
|
adapter->stats.mpc[i] += mp;
|
2009-08-24 20:41:51 +00:00
|
|
|
/* Running comprehensive total for stats display */
|
|
|
|
total_missed_rx += adapter->stats.mpc[i];
|
|
|
|
if (hw->mac.type == ixgbe_mac_82598EB)
|
2010-11-27 01:34:09 +00:00
|
|
|
adapter->stats.rnbc[i] +=
|
|
|
|
IXGBE_READ_REG(hw, IXGBE_RNBC(i));
|
|
|
|
adapter->stats.pxontxc[i] +=
|
|
|
|
IXGBE_READ_REG(hw, IXGBE_PXONTXC(i));
|
|
|
|
adapter->stats.pxonrxc[i] +=
|
|
|
|
IXGBE_READ_REG(hw, IXGBE_PXONRXC(i));
|
|
|
|
adapter->stats.pxofftxc[i] +=
|
|
|
|
IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i));
|
|
|
|
adapter->stats.pxoffrxc[i] +=
|
|
|
|
IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i));
|
|
|
|
adapter->stats.pxon2offc[i] +=
|
|
|
|
IXGBE_READ_REG(hw, IXGBE_PXON2OFFCNT(i));
|
|
|
|
}
|
|
|
|
for (int i = 0; i < 16; i++) {
|
|
|
|
adapter->stats.qprc[i] += IXGBE_READ_REG(hw, IXGBE_QPRC(i));
|
|
|
|
adapter->stats.qptc[i] += IXGBE_READ_REG(hw, IXGBE_QPTC(i));
|
|
|
|
adapter->stats.qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC(i));
|
|
|
|
adapter->stats.qbrc[i] +=
|
|
|
|
((u64)IXGBE_READ_REG(hw, IXGBE_QBRC(i)) << 32);
|
|
|
|
adapter->stats.qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC(i));
|
|
|
|
adapter->stats.qbtc[i] +=
|
|
|
|
((u64)IXGBE_READ_REG(hw, IXGBE_QBTC(i)) << 32);
|
|
|
|
adapter->stats.qprdc[i] += IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
|
|
|
|
}
|
|
|
|
adapter->stats.mlfc += IXGBE_READ_REG(hw, IXGBE_MLFC);
|
|
|
|
adapter->stats.mrfc += IXGBE_READ_REG(hw, IXGBE_MRFC);
|
|
|
|
adapter->stats.rlec += IXGBE_READ_REG(hw, IXGBE_RLEC);
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2008-05-16 18:46:30 +00:00
|
|
|
/* Hardware workaround, gprc counts missed packets */
|
|
|
|
adapter->stats.gprc += IXGBE_READ_REG(hw, IXGBE_GPRC);
|
|
|
|
adapter->stats.gprc -= missed_rx;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2011-04-25 23:34:21 +00:00
|
|
|
if (hw->mac.type != ixgbe_mac_82598EB) {
|
2010-11-27 01:34:09 +00:00
|
|
|
adapter->stats.gorc += IXGBE_READ_REG(hw, IXGBE_GORCL) +
|
|
|
|
((u64)IXGBE_READ_REG(hw, IXGBE_GORCH) << 32);
|
|
|
|
adapter->stats.gotc += IXGBE_READ_REG(hw, IXGBE_GOTCL) +
|
|
|
|
((u64)IXGBE_READ_REG(hw, IXGBE_GOTCH) << 32);
|
|
|
|
adapter->stats.tor += IXGBE_READ_REG(hw, IXGBE_TORL) +
|
|
|
|
((u64)IXGBE_READ_REG(hw, IXGBE_TORH) << 32);
|
2009-08-24 20:41:51 +00:00
|
|
|
adapter->stats.lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXCNT);
|
|
|
|
adapter->stats.lxoffrxc += IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT);
|
|
|
|
} else {
|
|
|
|
adapter->stats.lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXC);
|
|
|
|
adapter->stats.lxoffrxc += IXGBE_READ_REG(hw, IXGBE_LXOFFRXC);
|
|
|
|
/* 82598 only has a counter in the high register */
|
|
|
|
adapter->stats.gorc += IXGBE_READ_REG(hw, IXGBE_GORCH);
|
2010-05-14 22:00:37 +00:00
|
|
|
adapter->stats.gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH);
|
2009-08-24 20:41:51 +00:00
|
|
|
adapter->stats.tor += IXGBE_READ_REG(hw, IXGBE_TORH);
|
|
|
|
}
|
2008-05-16 18:46:30 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
/*
|
|
|
|
* Workaround: mprc hardware is incorrectly counting
|
|
|
|
* broadcasts, so for now we subtract those.
|
|
|
|
*/
|
2008-05-16 18:46:30 +00:00
|
|
|
bprc = IXGBE_READ_REG(hw, IXGBE_BPRC);
|
|
|
|
adapter->stats.bprc += bprc;
|
|
|
|
adapter->stats.mprc += IXGBE_READ_REG(hw, IXGBE_MPRC);
|
2011-01-19 19:36:27 +00:00
|
|
|
if (hw->mac.type == ixgbe_mac_82598EB)
|
|
|
|
adapter->stats.mprc -= bprc;
|
2008-05-16 18:46:30 +00:00
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
adapter->stats.prc64 += IXGBE_READ_REG(hw, IXGBE_PRC64);
|
|
|
|
adapter->stats.prc127 += IXGBE_READ_REG(hw, IXGBE_PRC127);
|
|
|
|
adapter->stats.prc255 += IXGBE_READ_REG(hw, IXGBE_PRC255);
|
|
|
|
adapter->stats.prc511 += IXGBE_READ_REG(hw, IXGBE_PRC511);
|
|
|
|
adapter->stats.prc1023 += IXGBE_READ_REG(hw, IXGBE_PRC1023);
|
|
|
|
adapter->stats.prc1522 += IXGBE_READ_REG(hw, IXGBE_PRC1522);
|
2008-05-16 18:46:30 +00:00
|
|
|
|
|
|
|
lxon = IXGBE_READ_REG(hw, IXGBE_LXONTXC);
|
|
|
|
adapter->stats.lxontxc += lxon;
|
|
|
|
lxoff = IXGBE_READ_REG(hw, IXGBE_LXOFFTXC);
|
|
|
|
adapter->stats.lxofftxc += lxoff;
|
|
|
|
total = lxon + lxoff;
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
adapter->stats.gptc += IXGBE_READ_REG(hw, IXGBE_GPTC);
|
2008-05-16 18:46:30 +00:00
|
|
|
adapter->stats.mptc += IXGBE_READ_REG(hw, IXGBE_MPTC);
|
|
|
|
adapter->stats.ptc64 += IXGBE_READ_REG(hw, IXGBE_PTC64);
|
|
|
|
adapter->stats.gptc -= total;
|
|
|
|
adapter->stats.mptc -= total;
|
|
|
|
adapter->stats.ptc64 -= total;
|
|
|
|
adapter->stats.gotc -= total * ETHER_MIN_LEN;
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
adapter->stats.ruc += IXGBE_READ_REG(hw, IXGBE_RUC);
|
|
|
|
adapter->stats.rfc += IXGBE_READ_REG(hw, IXGBE_RFC);
|
2010-11-27 01:34:09 +00:00
|
|
|
adapter->stats.roc += IXGBE_READ_REG(hw, IXGBE_ROC);
|
2007-07-11 23:03:16 +00:00
|
|
|
adapter->stats.rjc += IXGBE_READ_REG(hw, IXGBE_RJC);
|
2010-11-27 01:34:09 +00:00
|
|
|
adapter->stats.mngprc += IXGBE_READ_REG(hw, IXGBE_MNGPRC);
|
|
|
|
adapter->stats.mngpdc += IXGBE_READ_REG(hw, IXGBE_MNGPDC);
|
|
|
|
adapter->stats.mngptc += IXGBE_READ_REG(hw, IXGBE_MNGPTC);
|
2007-07-11 23:03:16 +00:00
|
|
|
adapter->stats.tpr += IXGBE_READ_REG(hw, IXGBE_TPR);
|
2010-11-27 01:34:09 +00:00
|
|
|
adapter->stats.tpt += IXGBE_READ_REG(hw, IXGBE_TPT);
|
2007-07-11 23:03:16 +00:00
|
|
|
adapter->stats.ptc127 += IXGBE_READ_REG(hw, IXGBE_PTC127);
|
|
|
|
adapter->stats.ptc255 += IXGBE_READ_REG(hw, IXGBE_PTC255);
|
|
|
|
adapter->stats.ptc511 += IXGBE_READ_REG(hw, IXGBE_PTC511);
|
|
|
|
adapter->stats.ptc1023 += IXGBE_READ_REG(hw, IXGBE_PTC1023);
|
|
|
|
adapter->stats.ptc1522 += IXGBE_READ_REG(hw, IXGBE_PTC1522);
|
|
|
|
adapter->stats.bptc += IXGBE_READ_REG(hw, IXGBE_BPTC);
|
2010-11-27 01:34:09 +00:00
|
|
|
adapter->stats.xec += IXGBE_READ_REG(hw, IXGBE_XEC);
|
|
|
|
adapter->stats.fccrc += IXGBE_READ_REG(hw, IXGBE_FCCRC);
|
|
|
|
adapter->stats.fclast += IXGBE_READ_REG(hw, IXGBE_FCLAST);
|
2011-01-19 19:36:27 +00:00
|
|
|
/* Only read FCOE on 82599 */
|
2011-04-25 23:34:21 +00:00
|
|
|
if (hw->mac.type != ixgbe_mac_82598EB) {
|
2011-01-19 19:36:27 +00:00
|
|
|
adapter->stats.fcoerpdc += IXGBE_READ_REG(hw, IXGBE_FCOERPDC);
|
|
|
|
adapter->stats.fcoeprc += IXGBE_READ_REG(hw, IXGBE_FCOEPRC);
|
|
|
|
adapter->stats.fcoeptc += IXGBE_READ_REG(hw, IXGBE_FCOEPTC);
|
|
|
|
adapter->stats.fcoedwrc += IXGBE_READ_REG(hw, IXGBE_FCOEDWRC);
|
|
|
|
adapter->stats.fcoedwtc += IXGBE_READ_REG(hw, IXGBE_FCOEDWTC);
|
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
|
|
|
|
/* Fill out the OS statistics structure */
|
|
|
|
ifp->if_ipackets = adapter->stats.gprc;
|
|
|
|
ifp->if_opackets = adapter->stats.gptc;
|
|
|
|
ifp->if_ibytes = adapter->stats.gorc;
|
|
|
|
ifp->if_obytes = adapter->stats.gotc;
|
|
|
|
ifp->if_imcasts = adapter->stats.mprc;
|
The drbr(9) API appeared to be so unclear, that most drivers in
tree used it incorrectly, which lead to inaccurate overrated
if_obytes accounting. The drbr(9) used to update ifnet stats on
drbr_enqueue(), which is not accurate since enqueuing doesn't
imply successful processing by driver. Dequeuing neither mean
that. Most drivers also called drbr_stats_update() which did
accounting again, leading to doubled if_obytes statistics. And
in case of severe transmitting, when a packet could be several
times enqueued and dequeued it could have been accounted several
times.
o Thus, make drbr(9) API thinner. Now drbr(9) merely chooses between
ALTQ queueing or buf_ring(9) queueing.
- It doesn't touch the buf_ring stats any more.
- It doesn't touch ifnet stats anymore.
- drbr_stats_update() no longer exists.
o buf_ring(9) handles its stats itself:
- It handles br_drops itself.
- br_prod_bytes stats are dropped. Rationale: no one ever
reads them but update of a common counter on every packet
negatively affects performance due to excessive cache
invalidation.
- buf_ring_enqueue_bytes() reduced to buf_ring_enqueue(), since
we no longer account bytes.
o Drivers handle their stats theirselves: if_obytes, if_omcasts.
o mlx4(4), igb(4), em(4), vxge(4), oce(4) and ixv(4) no longer
use drbr_stats_update(), and update ifnet stats theirselves.
o bxe(4) was the most correct driver, it didn't call
drbr_stats_update(), thus it was the only driver accurate under
moderate load. Now it also maintains stats itself.
o ixgbe(4) had already taken stats from hardware, so just
- drop software stats updating.
- take multicast packet count from hardware as well.
o mxge(4) just no longer needs NO_SLOW_STATS define.
o cxgb(4), cxgbe(4) need no change, since they obtain stats
from hardware.
Reviewed by: jfv, gnn
2012-09-28 18:28:27 +00:00
|
|
|
ifp->if_omcasts = adapter->stats.mptc;
|
2007-07-11 23:03:16 +00:00
|
|
|
ifp->if_collisions = 0;
|
|
|
|
|
|
|
|
/* Rx Errors */
|
2009-08-24 20:41:51 +00:00
|
|
|
ifp->if_ierrors = total_missed_rx + adapter->stats.crcerrs +
|
2007-07-11 23:03:16 +00:00
|
|
|
adapter->stats.rlec;
|
|
|
|
}
|
|
|
|
|
2010-11-27 01:34:09 +00:00
|
|
|
/** ixgbe_sysctl_tdh_handler - Handler function
|
|
|
|
* Retrieves the TDH value from the hardware
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
ixgbe_sysctl_tdh_handler(SYSCTL_HANDLER_ARGS)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
2010-11-27 01:34:09 +00:00
|
|
|
int error;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-11-27 01:34:09 +00:00
|
|
|
struct tx_ring *txr = ((struct tx_ring *)oidp->oid_arg1);
|
|
|
|
if (!txr) return 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-11-27 01:34:09 +00:00
|
|
|
unsigned val = IXGBE_READ_REG(&txr->adapter->hw, IXGBE_TDH(txr->me));
|
|
|
|
error = sysctl_handle_int(oidp, &val, 0, req);
|
|
|
|
if (error || !req->newptr)
|
|
|
|
return error;
|
|
|
|
return 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2010-11-27 01:34:09 +00:00
|
|
|
/** ixgbe_sysctl_tdt_handler - Handler function
|
|
|
|
* Retrieves the TDT value from the hardware
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
ixgbe_sysctl_tdt_handler(SYSCTL_HANDLER_ARGS)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
2010-11-27 01:34:09 +00:00
|
|
|
int error;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-11-27 01:34:09 +00:00
|
|
|
struct tx_ring *txr = ((struct tx_ring *)oidp->oid_arg1);
|
|
|
|
if (!txr) return 0;
|
|
|
|
|
|
|
|
unsigned val = IXGBE_READ_REG(&txr->adapter->hw, IXGBE_TDT(txr->me));
|
|
|
|
error = sysctl_handle_int(oidp, &val, 0, req);
|
|
|
|
if (error || !req->newptr)
|
|
|
|
return error;
|
|
|
|
return 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2010-11-27 01:34:09 +00:00
|
|
|
/** ixgbe_sysctl_rdh_handler - Handler function
|
|
|
|
* Retrieves the RDH value from the hardware
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
ixgbe_sysctl_rdh_handler(SYSCTL_HANDLER_ARGS)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
2010-11-27 01:34:09 +00:00
|
|
|
int error;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-11-27 01:34:09 +00:00
|
|
|
struct rx_ring *rxr = ((struct rx_ring *)oidp->oid_arg1);
|
|
|
|
if (!rxr) return 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-11-27 01:34:09 +00:00
|
|
|
unsigned val = IXGBE_READ_REG(&rxr->adapter->hw, IXGBE_RDH(rxr->me));
|
|
|
|
error = sysctl_handle_int(oidp, &val, 0, req);
|
2007-07-11 23:03:16 +00:00
|
|
|
if (error || !req->newptr)
|
2010-11-27 01:34:09 +00:00
|
|
|
return error;
|
|
|
|
return 0;
|
|
|
|
}
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-11-27 01:34:09 +00:00
|
|
|
/** ixgbe_sysctl_rdt_handler - Handler function
|
|
|
|
* Retrieves the RDT value from the hardware
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
ixgbe_sysctl_rdt_handler(SYSCTL_HANDLER_ARGS)
|
|
|
|
{
|
|
|
|
int error;
|
|
|
|
|
|
|
|
struct rx_ring *rxr = ((struct rx_ring *)oidp->oid_arg1);
|
|
|
|
if (!rxr) return 0;
|
|
|
|
|
|
|
|
unsigned val = IXGBE_READ_REG(&rxr->adapter->hw, IXGBE_RDT(rxr->me));
|
|
|
|
error = sysctl_handle_int(oidp, &val, 0, req);
|
|
|
|
if (error || !req->newptr)
|
|
|
|
return error;
|
|
|
|
return 0;
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2010-11-27 01:34:09 +00:00
|
|
|
ixgbe_sysctl_interrupt_rate_handler(SYSCTL_HANDLER_ARGS)
|
2007-07-11 23:03:16 +00:00
|
|
|
{
|
2010-11-27 01:34:09 +00:00
|
|
|
int error;
|
|
|
|
struct ix_queue *que = ((struct ix_queue *)oidp->oid_arg1);
|
|
|
|
unsigned int reg, usec, rate;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-11-27 01:34:09 +00:00
|
|
|
reg = IXGBE_READ_REG(&que->adapter->hw, IXGBE_EITR(que->msix));
|
|
|
|
usec = ((reg & 0x0FF8) >> 3);
|
|
|
|
if (usec > 0)
|
2012-01-26 09:55:16 +00:00
|
|
|
rate = 500000 / usec;
|
2010-11-27 01:34:09 +00:00
|
|
|
else
|
|
|
|
rate = 0;
|
|
|
|
error = sysctl_handle_int(oidp, &rate, 0, req);
|
2007-07-11 23:03:16 +00:00
|
|
|
if (error || !req->newptr)
|
2010-11-27 01:34:09 +00:00
|
|
|
return error;
|
2012-01-26 09:55:16 +00:00
|
|
|
reg &= ~0xfff; /* default, no limitation */
|
|
|
|
ixgbe_max_interrupt_rate = 0;
|
|
|
|
if (rate > 0 && rate < 500000) {
|
|
|
|
if (rate < 1000)
|
|
|
|
rate = 1000;
|
|
|
|
ixgbe_max_interrupt_rate = rate;
|
|
|
|
reg |= ((4000000/rate) & 0xff8 );
|
|
|
|
}
|
|
|
|
IXGBE_WRITE_REG(&que->adapter->hw, IXGBE_EITR(que->msix), reg);
|
2010-11-27 01:34:09 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Add sysctl variables, one per statistic, to the system.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
ixgbe_add_hw_stats(struct adapter *adapter)
|
|
|
|
{
|
|
|
|
|
|
|
|
device_t dev = adapter->dev;
|
|
|
|
|
|
|
|
struct tx_ring *txr = adapter->tx_rings;
|
|
|
|
struct rx_ring *rxr = adapter->rx_rings;
|
2007-07-11 23:03:16 +00:00
|
|
|
|
2010-11-27 01:34:09 +00:00
|
|
|
struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(dev);
|
|
|
|
struct sysctl_oid *tree = device_get_sysctl_tree(dev);
|
|
|
|
struct sysctl_oid_list *child = SYSCTL_CHILDREN(tree);
|
|
|
|
struct ixgbe_hw_stats *stats = &adapter->stats;
|
|
|
|
|
|
|
|
struct sysctl_oid *stat_node, *queue_node;
|
|
|
|
struct sysctl_oid_list *stat_list, *queue_list;
|
|
|
|
|
|
|
|
#define QUEUE_NAME_LEN 32
|
|
|
|
char namebuf[QUEUE_NAME_LEN];
|
|
|
|
|
|
|
|
/* Driver Statistics */
|
|
|
|
SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "dropped",
|
|
|
|
CTLFLAG_RD, &adapter->dropped_pkts,
|
|
|
|
"Driver dropped packets");
|
|
|
|
SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "mbuf_defrag_failed",
|
|
|
|
CTLFLAG_RD, &adapter->mbuf_defrag_failed,
|
|
|
|
"m_defrag() failed");
|
|
|
|
SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "no_tx_dma_setup",
|
|
|
|
CTLFLAG_RD, &adapter->no_tx_dma_setup,
|
|
|
|
"Driver tx dma failure in xmit");
|
|
|
|
SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "watchdog_events",
|
|
|
|
CTLFLAG_RD, &adapter->watchdog_events,
|
|
|
|
"Watchdog timeouts");
|
|
|
|
SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "tso_tx",
|
|
|
|
CTLFLAG_RD, &adapter->tso_tx,
|
|
|
|
"TSO");
|
|
|
|
SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "link_irq",
|
|
|
|
CTLFLAG_RD, &adapter->link_irq,
|
|
|
|
"Link MSIX IRQ Handled");
|
|
|
|
|
|
|
|
for (int i = 0; i < adapter->num_queues; i++, txr++) {
|
|
|
|
snprintf(namebuf, QUEUE_NAME_LEN, "queue%d", i);
|
|
|
|
queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf,
|
|
|
|
CTLFLAG_RD, NULL, "Queue Name");
|
|
|
|
queue_list = SYSCTL_CHILDREN(queue_node);
|
|
|
|
|
|
|
|
SYSCTL_ADD_PROC(ctx, queue_list, OID_AUTO, "interrupt_rate",
|
2012-01-26 09:55:16 +00:00
|
|
|
CTLTYPE_UINT | CTLFLAG_RW, &adapter->queues[i],
|
2011-01-18 21:14:23 +00:00
|
|
|
sizeof(&adapter->queues[i]),
|
2010-11-27 01:34:09 +00:00
|
|
|
ixgbe_sysctl_interrupt_rate_handler, "IU",
|
|
|
|
"Interrupt Rate");
|
2012-01-26 09:55:16 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "irqs",
|
|
|
|
CTLFLAG_RD, &(adapter->queues[i].irqs),
|
|
|
|
"irqs on this queue");
|
2010-11-27 01:34:09 +00:00
|
|
|
SYSCTL_ADD_PROC(ctx, queue_list, OID_AUTO, "txd_head",
|
2011-01-18 21:14:23 +00:00
|
|
|
CTLTYPE_UINT | CTLFLAG_RD, txr, sizeof(txr),
|
2010-11-27 01:34:09 +00:00
|
|
|
ixgbe_sysctl_tdh_handler, "IU",
|
|
|
|
"Transmit Descriptor Head");
|
|
|
|
SYSCTL_ADD_PROC(ctx, queue_list, OID_AUTO, "txd_tail",
|
2011-01-18 21:14:23 +00:00
|
|
|
CTLTYPE_UINT | CTLFLAG_RD, txr, sizeof(txr),
|
2010-11-27 01:34:09 +00:00
|
|
|
ixgbe_sysctl_tdt_handler, "IU",
|
|
|
|
"Transmit Descriptor Tail");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "no_desc_avail",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &txr->no_desc_avail,
|
|
|
|
"Queue No Descriptor Available");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "tx_packets",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &txr->total_packets,
|
|
|
|
"Queue Packets Transmitted");
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
2010-11-27 01:34:09 +00:00
|
|
|
|
|
|
|
for (int i = 0; i < adapter->num_queues; i++, rxr++) {
|
|
|
|
snprintf(namebuf, QUEUE_NAME_LEN, "queue%d", i);
|
|
|
|
queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf,
|
|
|
|
CTLFLAG_RD, NULL, "Queue Name");
|
|
|
|
queue_list = SYSCTL_CHILDREN(queue_node);
|
|
|
|
|
|
|
|
struct lro_ctrl *lro = &rxr->lro;
|
|
|
|
|
|
|
|
snprintf(namebuf, QUEUE_NAME_LEN, "queue%d", i);
|
|
|
|
queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf,
|
|
|
|
CTLFLAG_RD, NULL, "Queue Name");
|
|
|
|
queue_list = SYSCTL_CHILDREN(queue_node);
|
|
|
|
|
|
|
|
SYSCTL_ADD_PROC(ctx, queue_list, OID_AUTO, "rxd_head",
|
2011-01-18 21:14:23 +00:00
|
|
|
CTLTYPE_UINT | CTLFLAG_RD, rxr, sizeof(rxr),
|
2010-11-27 01:34:09 +00:00
|
|
|
ixgbe_sysctl_rdh_handler, "IU",
|
|
|
|
"Receive Descriptor Head");
|
|
|
|
SYSCTL_ADD_PROC(ctx, queue_list, OID_AUTO, "rxd_tail",
|
2011-01-18 21:14:23 +00:00
|
|
|
CTLTYPE_UINT | CTLFLAG_RD, rxr, sizeof(rxr),
|
2010-11-27 01:34:09 +00:00
|
|
|
ixgbe_sysctl_rdt_handler, "IU",
|
|
|
|
"Receive Descriptor Tail");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "rx_packets",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &rxr->rx_packets,
|
|
|
|
"Queue Packets Received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "rx_bytes",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &rxr->rx_bytes,
|
|
|
|
"Queue Bytes Received");
|
2012-08-31 10:07:38 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "rx_copies",
|
|
|
|
CTLFLAG_RD, &rxr->rx_copies,
|
|
|
|
"Copied RX Frames");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_INT(ctx, queue_list, OID_AUTO, "lro_queued",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &lro->lro_queued, 0,
|
|
|
|
"LRO Queued");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_INT(ctx, queue_list, OID_AUTO, "lro_flushed",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &lro->lro_flushed, 0,
|
|
|
|
"LRO Flushed");
|
|
|
|
}
|
|
|
|
|
|
|
|
/* MAC stats get the own sub node */
|
|
|
|
|
|
|
|
stat_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "mac_stats",
|
|
|
|
CTLFLAG_RD, NULL, "MAC Statistics");
|
|
|
|
stat_list = SYSCTL_CHILDREN(stat_node);
|
|
|
|
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "crc_errs",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->crcerrs,
|
|
|
|
"CRC Errors");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "ill_errs",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->illerrc,
|
|
|
|
"Illegal Byte Errors");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "byte_errs",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->errbc,
|
|
|
|
"Byte Errors");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "short_discards",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->mspdc,
|
|
|
|
"MAC Short Packets Discarded");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "local_faults",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->mlfc,
|
|
|
|
"MAC Local Faults");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "remote_faults",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->mrfc,
|
|
|
|
"MAC Remote Faults");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "rec_len_errs",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->rlec,
|
|
|
|
"Receive Length Errors");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "link_xon_txd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->lxontxc,
|
|
|
|
"Link XON Transmitted");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "link_xon_rcvd",
|
2011-01-07 22:34:56 +00:00
|
|
|
CTLFLAG_RD, &stats->lxonrxc,
|
2010-11-27 01:34:09 +00:00
|
|
|
"Link XON Received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "link_xoff_txd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->lxofftxc,
|
|
|
|
"Link XOFF Transmitted");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "link_xoff_rcvd",
|
2011-01-07 22:34:56 +00:00
|
|
|
CTLFLAG_RD, &stats->lxoffrxc,
|
2010-11-27 01:34:09 +00:00
|
|
|
"Link XOFF Received");
|
|
|
|
|
|
|
|
/* Packet Reception Stats */
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "total_octets_rcvd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->tor,
|
|
|
|
"Total Octets Received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_octets_rcvd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->gorc,
|
|
|
|
"Good Octets Received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "total_pkts_rcvd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->tpr,
|
|
|
|
"Total Packets Received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_pkts_rcvd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->gprc,
|
|
|
|
"Good Packets Received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "mcast_pkts_rcvd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->mprc,
|
|
|
|
"Multicast Packets Received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "bcast_pkts_rcvd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->bprc,
|
|
|
|
"Broadcast Packets Received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "rx_frames_64",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->prc64,
|
|
|
|
"64 byte frames received ");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "rx_frames_65_127",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->prc127,
|
|
|
|
"65-127 byte frames received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "rx_frames_128_255",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->prc255,
|
|
|
|
"128-255 byte frames received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "rx_frames_256_511",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->prc511,
|
|
|
|
"256-511 byte frames received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "rx_frames_512_1023",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->prc1023,
|
|
|
|
"512-1023 byte frames received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "rx_frames_1024_1522",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->prc1522,
|
|
|
|
"1023-1522 byte frames received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "recv_undersized",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->ruc,
|
|
|
|
"Receive Undersized");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "recv_fragmented",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->rfc,
|
|
|
|
"Fragmented Packets Received ");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "recv_oversized",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->roc,
|
|
|
|
"Oversized Packets Received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "recv_jabberd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->rjc,
|
|
|
|
"Received Jabber");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "management_pkts_rcvd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->mngprc,
|
|
|
|
"Management Packets Received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "management_pkts_drpd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->mngptc,
|
|
|
|
"Management Packets Dropped");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "checksum_errs",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->xec,
|
|
|
|
"Checksum Errors");
|
|
|
|
|
|
|
|
/* Packet Transmission Stats */
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_octets_txd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->gotc,
|
|
|
|
"Good Octets Transmitted");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "total_pkts_txd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->tpt,
|
|
|
|
"Total Packets Transmitted");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_pkts_txd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->gptc,
|
|
|
|
"Good Packets Transmitted");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "bcast_pkts_txd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->bptc,
|
|
|
|
"Broadcast Packets Transmitted");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "mcast_pkts_txd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->mptc,
|
|
|
|
"Multicast Packets Transmitted");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "management_pkts_txd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->mngptc,
|
|
|
|
"Management Packets Transmitted");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "tx_frames_64",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->ptc64,
|
|
|
|
"64 byte frames transmitted ");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "tx_frames_65_127",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->ptc127,
|
|
|
|
"65-127 byte frames transmitted");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "tx_frames_128_255",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->ptc255,
|
|
|
|
"128-255 byte frames transmitted");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "tx_frames_256_511",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->ptc511,
|
|
|
|
"256-511 byte frames transmitted");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "tx_frames_512_1023",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->ptc1023,
|
|
|
|
"512-1023 byte frames transmitted");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "tx_frames_1024_1522",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->ptc1522,
|
|
|
|
"1024-1522 byte frames transmitted");
|
|
|
|
|
|
|
|
/* FC Stats */
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "fc_crc",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->fccrc,
|
|
|
|
"FC CRC Errors");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "fc_last",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->fclast,
|
|
|
|
"FC Last Error");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "fc_drpd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->fcoerpdc,
|
|
|
|
"FCoE Packets Dropped");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "fc_pkts_rcvd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->fcoeprc,
|
|
|
|
"FCoE Packets Received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "fc_pkts_txd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->fcoeptc,
|
|
|
|
"FCoE Packets Transmitted");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "fc_dword_rcvd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->fcoedwrc,
|
|
|
|
"FCoE DWords Received");
|
2011-01-12 19:53:23 +00:00
|
|
|
SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "fc_dword_txd",
|
2010-11-27 01:34:09 +00:00
|
|
|
CTLFLAG_RD, &stats->fcoedwtc,
|
|
|
|
"FCoE DWords Transmitted");
|
2007-07-11 23:03:16 +00:00
|
|
|
}
|
|
|
|
|
2007-09-04 02:31:35 +00:00
|
|
|
/*
|
|
|
|
** Set flow control using sysctl:
|
|
|
|
** Flow control values:
|
|
|
|
** 0 - off
|
|
|
|
** 1 - rx pause
|
|
|
|
** 2 - tx pause
|
|
|
|
** 3 - full
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
ixgbe_set_flowcntl(SYSCTL_HANDLER_ARGS)
|
|
|
|
{
|
2012-01-30 16:42:02 +00:00
|
|
|
int error, last;
|
|
|
|
struct adapter *adapter = (struct adapter *) arg1;
|
2007-09-04 02:31:35 +00:00
|
|
|
|
2012-01-30 16:42:02 +00:00
|
|
|
last = adapter->fc;
|
|
|
|
error = sysctl_handle_int(oidp, &adapter->fc, 0, req);
|
|
|
|
if ((error) || (req->newptr == NULL))
|
2007-09-04 02:31:35 +00:00
|
|
|
return (error);
|
|
|
|
|
2011-01-22 00:19:15 +00:00
|
|
|
/* Don't bother if it's not changed */
|
2012-01-30 16:42:02 +00:00
|
|
|
if (adapter->fc == last)
|
2011-01-22 00:19:15 +00:00
|
|
|
return (0);
|
|
|
|
|
2012-01-30 16:42:02 +00:00
|
|
|
switch (adapter->fc) {
|
2007-09-04 02:31:35 +00:00
|
|
|
case ixgbe_fc_rx_pause:
|
|
|
|
case ixgbe_fc_tx_pause:
|
|
|
|
case ixgbe_fc_full:
|
2012-01-30 16:42:02 +00:00
|
|
|
adapter->hw.fc.requested_mode = adapter->fc;
|
A few important fixes:
- Testing TSO6 has led me to discover that HW RSC is
a problematic feature, it is ONLY designed to work
with IPv4 in the first place, and if IP forwarding
is done it can't be disabled as LRO in the stack,
also initial testing we've done at Intel shows an
equal performance using TSO[46] on the TX and LRO
on RX, if you ran older code on 82599 or later hardware
you actually could have detrimental performance for
this reason. So I am disabling the feature by default
and all our adapters will now use LRO instead.
- If you have flow control off and multiple queues it
was possible when the buffer of one queue becomes
full that all RX movement is stalled, to eliminate
this problem a feature bit is now set that will allow
packets to be dropped when full rather than stall.
Note, the default is to have flow control on, and this
keeps this from happening.
- Because of the recent fixes in the stack, LRO is now
auto-disabled when problematic, so I have decided to
enable it by default in the capabilities in the driver.
- There are some 1G modules used by some customers, a couple
small tweaks to properly support those in the media code.
- A note: we have now done some testing of TSO6 and using
LRO with IPv6 and it all works great!! Seeing line rate
in both directions in best cases. Thanks bz for your
excellent work!!
2012-10-31 23:50:36 +00:00
|
|
|
if (adapter->num_queues > 1)
|
|
|
|
ixgbe_disable_rx_drop(adapter);
|
2007-09-04 02:31:35 +00:00
|
|
|
break;
|
|
|
|
case ixgbe_fc_none:
|
|
|
|
default:
|
2008-11-26 23:41:18 +00:00
|
|
|
adapter->hw.fc.requested_mode = ixgbe_fc_none;
|
A few important fixes:
- Testing TSO6 has led me to discover that HW RSC is
a problematic feature, it is ONLY designed to work
with IPv4 in the first place, and if IP forwarding
is done it can't be disabled as LRO in the stack,
also initial testing we've done at Intel shows an
equal performance using TSO[46] on the TX and LRO
on RX, if you ran older code on 82599 or later hardware
you actually could have detrimental performance for
this reason. So I am disabling the feature by default
and all our adapters will now use LRO instead.
- If you have flow control off and multiple queues it
was possible when the buffer of one queue becomes
full that all RX movement is stalled, to eliminate
this problem a feature bit is now set that will allow
packets to be dropped when full rather than stall.
Note, the default is to have flow control on, and this
keeps this from happening.
- Because of the recent fixes in the stack, LRO is now
auto-disabled when problematic, so I have decided to
enable it by default in the capabilities in the driver.
- There are some 1G modules used by some customers, a couple
small tweaks to properly support those in the media code.
- A note: we have now done some testing of TSO6 and using
LRO with IPv6 and it all works great!! Seeing line rate
in both directions in best cases. Thanks bz for your
excellent work!!
2012-10-31 23:50:36 +00:00
|
|
|
if (adapter->num_queues > 1)
|
|
|
|
ixgbe_enable_rx_drop(adapter);
|
2007-09-04 02:31:35 +00:00
|
|
|
}
|
2012-07-05 20:51:44 +00:00
|
|
|
/* Don't autoneg if forcing a value */
|
|
|
|
adapter->hw.fc.disable_fc_autoneg = TRUE;
|
|
|
|
ixgbe_fc_enable(&adapter->hw);
|
2007-09-04 02:31:35 +00:00
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
2007-07-11 23:03:16 +00:00
|
|
|
static void
|
|
|
|
ixgbe_add_rx_process_limit(struct adapter *adapter, const char *name,
|
|
|
|
const char *description, int *limit, int value)
|
|
|
|
{
|
|
|
|
*limit = value;
|
|
|
|
SYSCTL_ADD_INT(device_get_sysctl_ctx(adapter->dev),
|
|
|
|
SYSCTL_CHILDREN(device_get_sysctl_tree(adapter->dev)),
|
|
|
|
OID_AUTO, name, CTLTYPE_INT|CTLFLAG_RW, limit, value, description);
|
|
|
|
}
|
2010-06-30 01:10:08 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
** Control link advertise speed:
|
|
|
|
** 1 - advertise only 1G
|
2012-01-30 16:42:02 +00:00
|
|
|
** 2 - advertise 100Mb
|
2012-07-05 20:51:44 +00:00
|
|
|
** 3 - advertise normal
|
2010-06-30 01:10:08 +00:00
|
|
|
*/
|
|
|
|
static int
|
|
|
|
ixgbe_set_advertise(SYSCTL_HANDLER_ARGS)
|
|
|
|
{
|
2011-06-02 00:34:57 +00:00
|
|
|
int error = 0;
|
2010-06-30 01:10:08 +00:00
|
|
|
struct adapter *adapter;
|
2012-01-30 16:42:02 +00:00
|
|
|
device_t dev;
|
2010-06-30 01:10:08 +00:00
|
|
|
struct ixgbe_hw *hw;
|
|
|
|
ixgbe_link_speed speed, last;
|
|
|
|
|
|
|
|
adapter = (struct adapter *) arg1;
|
2012-01-30 16:42:02 +00:00
|
|
|
dev = adapter->dev;
|
2010-06-30 01:10:08 +00:00
|
|
|
hw = &adapter->hw;
|
2012-07-05 20:51:44 +00:00
|
|
|
last = adapter->advertise;
|
2010-06-30 01:10:08 +00:00
|
|
|
|
|
|
|
error = sysctl_handle_int(oidp, &adapter->advertise, 0, req);
|
|
|
|
if ((error) || (adapter->advertise == -1))
|
|
|
|
return (error);
|
|
|
|
|
2012-07-05 20:51:44 +00:00
|
|
|
if (adapter->advertise == last) /* no change */
|
|
|
|
return (0);
|
|
|
|
|
2010-06-30 01:10:08 +00:00
|
|
|
if (!((hw->phy.media_type == ixgbe_media_type_copper) ||
|
|
|
|
(hw->phy.multispeed_fiber)))
|
|
|
|
return (error);
|
|
|
|
|
2012-01-30 16:42:02 +00:00
|
|
|
if ((adapter->advertise == 2) && (hw->mac.type != ixgbe_mac_X540)) {
|
|
|
|
device_printf(dev, "Set Advertise: 100Mb on X540 only\n");
|
|
|
|
return (error);
|
|
|
|
}
|
|
|
|
|
2010-06-30 01:10:08 +00:00
|
|
|
if (adapter->advertise == 1)
|
|
|
|
speed = IXGBE_LINK_SPEED_1GB_FULL;
|
2012-01-30 16:42:02 +00:00
|
|
|
else if (adapter->advertise == 2)
|
|
|
|
speed = IXGBE_LINK_SPEED_100_FULL;
|
2012-07-05 20:51:44 +00:00
|
|
|
else if (adapter->advertise == 3)
|
2010-06-30 01:10:08 +00:00
|
|
|
speed = IXGBE_LINK_SPEED_1GB_FULL |
|
|
|
|
IXGBE_LINK_SPEED_10GB_FULL;
|
2012-07-05 20:51:44 +00:00
|
|
|
else /* bogus value */
|
2010-06-30 01:10:08 +00:00
|
|
|
return (error);
|
|
|
|
|
|
|
|
hw->mac.autotry_restart = TRUE;
|
|
|
|
hw->mac.ops.setup_link(hw, speed, TRUE, TRUE);
|
|
|
|
|
|
|
|
return (error);
|
|
|
|
}
|
2012-01-30 16:42:02 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
** Thermal Shutdown Trigger
|
|
|
|
** - cause a Thermal Overtemp IRQ
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
ixgbe_set_thermal_test(SYSCTL_HANDLER_ARGS)
|
|
|
|
{
|
|
|
|
int error, fire = 0;
|
|
|
|
struct adapter *adapter = (struct adapter *) arg1;
|
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
|
|
|
|
|
|
|
|
|
|
|
if (hw->mac.type != ixgbe_mac_X540)
|
|
|
|
return (0);
|
|
|
|
|
|
|
|
error = sysctl_handle_int(oidp, &fire, 0, req);
|
|
|
|
if ((error) || (req->newptr == NULL))
|
|
|
|
return (error);
|
|
|
|
|
|
|
|
if (fire) {
|
|
|
|
u32 reg = IXGBE_READ_REG(hw, IXGBE_EICS);
|
|
|
|
reg |= IXGBE_EICR_TS;
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_EICS, reg);
|
|
|
|
}
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
A few important fixes:
- Testing TSO6 has led me to discover that HW RSC is
a problematic feature, it is ONLY designed to work
with IPv4 in the first place, and if IP forwarding
is done it can't be disabled as LRO in the stack,
also initial testing we've done at Intel shows an
equal performance using TSO[46] on the TX and LRO
on RX, if you ran older code on 82599 or later hardware
you actually could have detrimental performance for
this reason. So I am disabling the feature by default
and all our adapters will now use LRO instead.
- If you have flow control off and multiple queues it
was possible when the buffer of one queue becomes
full that all RX movement is stalled, to eliminate
this problem a feature bit is now set that will allow
packets to be dropped when full rather than stall.
Note, the default is to have flow control on, and this
keeps this from happening.
- Because of the recent fixes in the stack, LRO is now
auto-disabled when problematic, so I have decided to
enable it by default in the capabilities in the driver.
- There are some 1G modules used by some customers, a couple
small tweaks to properly support those in the media code.
- A note: we have now done some testing of TSO6 and using
LRO with IPv6 and it all works great!! Seeing line rate
in both directions in best cases. Thanks bz for your
excellent work!!
2012-10-31 23:50:36 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
** Enable the hardware to drop packets when the buffer is
|
|
|
|
** full. This is useful when multiqueue,so that no single
|
|
|
|
** queue being full stalls the entire RX engine. We only
|
|
|
|
** enable this when Multiqueue AND when Flow Control is
|
|
|
|
** disabled.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
ixgbe_enable_rx_drop(struct adapter *adapter)
|
|
|
|
{
|
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
|
|
|
|
|
|
|
for (int i = 0; i < adapter->num_queues; i++) {
|
|
|
|
u32 srrctl = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i));
|
|
|
|
srrctl |= IXGBE_SRRCTL_DROP_EN;
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(i), srrctl);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
ixgbe_disable_rx_drop(struct adapter *adapter)
|
|
|
|
{
|
|
|
|
struct ixgbe_hw *hw = &adapter->hw;
|
|
|
|
|
|
|
|
for (int i = 0; i < adapter->num_queues; i++) {
|
|
|
|
u32 srrctl = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i));
|
|
|
|
srrctl &= ~IXGBE_SRRCTL_DROP_EN;
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(i), srrctl);
|
|
|
|
}
|
|
|
|
}
|