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freebsd-nq/sys/dev/vxge/vxgehal/vxgehal-swapper.c
George V. Neville-Neil 548d35fd69 Exar driver for X3100 10GbE Server/Storage adapters 
Features: Jumbo frames (up to 9600), LRO (Large Receive Offload),
          TSO (TCP segmentation offload), RTH (Receive Traffic Hash).

Submitted by: Sriram Rapuru at Exar
MFC after:	2 weeks
2011-04-28 14:33:15 +00:00

244 lines
6.8 KiB
C
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/*-
* Copyright(c) 2002-2011 Exar Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification are permitted provided the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Exar Corporation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*$FreeBSD$*/
#include <dev/vxge/vxgehal/vxgehal.h>
/*
* _hal_legacy_swapper_set - Set the swapper bits for the legacy secion.
* @pdev: PCI device object.
* @regh: BAR0 mapped memory handle (Solaris), or simply PCI device @pdev
* (Linux and the rest.)
* @legacy_reg: Address of the legacy register space.
*
* Set the swapper bits appropriately for the lagacy section.
*
* Returns: VXGE_HAL_OK - success.
* VXGE_HAL_ERR_SWAPPER_CTRL - failed.
*
* See also: vxge_hal_status_e {}.
*/
vxge_hal_status_e
__hal_legacy_swapper_set(
pci_dev_h pdev,
pci_reg_h regh,
vxge_hal_legacy_reg_t *legacy_reg)
{
u64 val64;
vxge_hal_status_e status;
vxge_assert(legacy_reg != NULL);
vxge_hal_trace_log_driver("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_driver(
"pdev = 0x"VXGE_OS_STXFMT", regh = 0x"VXGE_OS_STXFMT", "
"legacy_reg = 0x"VXGE_OS_STXFMT, (ptr_t) pdev, (ptr_t) regh,
(ptr_t) legacy_reg);
val64 = vxge_os_pio_mem_read64(pdev, regh, &legacy_reg->toc_swapper_fb);
vxge_hal_info_log_driver("TOC Swapper Fb: 0x"VXGE_OS_LLXFMT, val64);
vxge_os_wmb();
switch (val64) {
case VXGE_HAL_SWAPPER_INITIAL_VALUE:
return (VXGE_HAL_OK);
case VXGE_HAL_SWAPPER_BYTE_SWAPPED_BIT_FLIPPED:
vxge_os_pio_mem_write64(pdev, regh,
VXGE_HAL_SWAPPER_READ_BYTE_SWAP_ENABLE,
&legacy_reg->pifm_rd_swap_en);
vxge_os_pio_mem_write64(pdev, regh,
VXGE_HAL_SWAPPER_READ_BIT_FLAP_ENABLE,
&legacy_reg->pifm_rd_flip_en);
vxge_os_pio_mem_write64(pdev, regh,
VXGE_HAL_SWAPPER_WRITE_BYTE_SWAP_ENABLE,
&legacy_reg->pifm_wr_swap_en);
vxge_os_pio_mem_write64(pdev, regh,
VXGE_HAL_SWAPPER_WRITE_BIT_FLAP_ENABLE,
&legacy_reg->pifm_wr_flip_en);
break;
case VXGE_HAL_SWAPPER_BYTE_SWAPPED:
vxge_os_pio_mem_write64(pdev, regh,
VXGE_HAL_SWAPPER_READ_BYTE_SWAP_ENABLE,
&legacy_reg->pifm_rd_swap_en);
vxge_os_pio_mem_write64(pdev, regh,
VXGE_HAL_SWAPPER_WRITE_BYTE_SWAP_ENABLE,
&legacy_reg->pifm_wr_swap_en);
break;
case VXGE_HAL_SWAPPER_BIT_FLIPPED:
vxge_os_pio_mem_write64(pdev, regh,
VXGE_HAL_SWAPPER_READ_BIT_FLAP_ENABLE,
&legacy_reg->pifm_rd_flip_en);
vxge_os_pio_mem_write64(pdev, regh,
VXGE_HAL_SWAPPER_WRITE_BIT_FLAP_ENABLE,
&legacy_reg->pifm_wr_flip_en);
break;
}
vxge_os_wmb();
val64 = vxge_os_pio_mem_read64(pdev, regh, &legacy_reg->toc_swapper_fb);
if (val64 == VXGE_HAL_SWAPPER_INITIAL_VALUE) {
status = VXGE_HAL_OK;
} else {
vxge_hal_err_log_driver("%s:TOC Swapper setting failed",
__func__);
status = VXGE_HAL_ERR_SWAPPER_CTRL;
}
vxge_hal_info_log_driver("TOC Swapper Fb: 0x"VXGE_OS_LLXFMT, val64);
vxge_hal_trace_log_driver("<== %s:%s:%d Result: %d",
__FILE__, __func__, __LINE__, status);
return (status);
}
/*
* __hal_vpath_swapper_set - Set the swapper bits for the vpath.
* @hldev: HAL device object.
* @vp_id: Vpath Id
*
* Set the swapper bits appropriately for the vpath.
*
* Returns: VXGE_HAL_OK - success.
* VXGE_HAL_ERR_SWAPPER_CTRL - failed.
*
* See also: vxge_hal_status_e {}.
*/
vxge_hal_status_e
__hal_vpath_swapper_set(
vxge_hal_device_t *hldev,
u32 vp_id)
{
#if !defined(VXGE_OS_HOST_BIG_ENDIAN)
u64 val64;
vxge_hal_vpath_reg_t *vpath_reg;
vxge_assert(hldev != NULL);
vxge_hal_trace_log_vpath("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_vpath(
"hldev = 0x"VXGE_OS_STXFMT", vp_id = %d",
(ptr_t) hldev, vp_id);
vpath_reg = ((__hal_device_t *) hldev)->vpath_reg[vp_id];
val64 = vxge_os_pio_mem_read64(hldev->pdev, hldev->regh0,
&vpath_reg->vpath_general_cfg1);
vxge_os_wmb();
val64 |= VXGE_HAL_VPATH_GENERAL_CFG1_CTL_BYTE_SWAPEN;
vxge_os_pio_mem_write64(hldev->pdev, hldev->regh0,
val64,
&vpath_reg->vpath_general_cfg1);
vxge_os_wmb();
vxge_hal_trace_log_vpath("<== %s:%s:%d Result: 0",
__FILE__, __func__, __LINE__);
#endif
return (VXGE_HAL_OK);
}
/*
* __hal_kdfc_swapper_set - Set the swapper bits for the kdfc.
* @hldev: HAL device object.
* @vp_id: Vpath Id
*
* Set the swapper bits appropriately for the vpath.
*
* Returns: VXGE_HAL_OK - success.
* VXGE_HAL_ERR_SWAPPER_CTRL - failed.
*
* See also: vxge_hal_status_e {}.
*/
vxge_hal_status_e
__hal_kdfc_swapper_set(
vxge_hal_device_t *hldev,
u32 vp_id)
{
u64 val64;
vxge_hal_vpath_reg_t *vpath_reg;
vxge_hal_legacy_reg_t *legacy_reg;
vxge_assert(hldev != NULL);
vxge_hal_trace_log_vpath("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_vpath("hldev = 0x"VXGE_OS_STXFMT", vp_id = %d",
(ptr_t) hldev, vp_id);
vpath_reg = ((__hal_device_t *) hldev)->vpath_reg[vp_id];
legacy_reg = ((__hal_device_t *) hldev)->legacy_reg;
val64 = vxge_os_pio_mem_read64(hldev->pdev, hldev->regh0,
&legacy_reg->pifm_wr_swap_en);
if (val64 == VXGE_HAL_SWAPPER_WRITE_BYTE_SWAP_ENABLE) {
val64 = vxge_os_pio_mem_read64(hldev->pdev, hldev->regh0,
&vpath_reg->kdfcctl_cfg0);
vxge_os_wmb();
val64 |= VXGE_HAL_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO0 |
VXGE_HAL_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO1 |
VXGE_HAL_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO2;
vxge_os_pio_mem_write64(hldev->pdev, hldev->regh0,
val64,
&vpath_reg->kdfcctl_cfg0);
vxge_os_wmb();
}
vxge_hal_trace_log_vpath("<== %s:%s:%d Result: 0",
__FILE__, __func__, __LINE__);
return (VXGE_HAL_OK);
}
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