548 lines
14 KiB
C
548 lines
14 KiB
C
/*
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* BSD LICENSE
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*
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* Copyright(c) 2017 Cavium, Inc.. All rights reserved.
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* All rights reserved.
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*
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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
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Cavium, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "lio_bsd.h"
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#include "lio_common.h"
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#include "lio_droq.h"
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#include "lio_iq.h"
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#include "lio_response_manager.h"
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#include "lio_device.h"
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#include "lio_network.h"
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#include "lio_ctrl.h"
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#include "cn23xx_pf_device.h"
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#include "lio_image.h"
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#include "lio_ioctl.h"
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#include "lio_main.h"
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#include "lio_rxtx.h"
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static int lio_set_rx_csum(if_t ifp, uint32_t data);
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static int lio_set_tso4(if_t ifp);
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static int lio_set_tso6(if_t ifp);
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static int lio_set_lro(if_t ifp);
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static int lio_change_mtu(if_t ifp, int new_mtu);
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static int lio_set_mcast_list(if_t ifp);
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static inline enum lio_ifflags lio_get_new_flags(if_t ifp);
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static inline bool
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lio_is_valid_ether_addr(const uint8_t *addr)
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{
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return (!(0x01 & addr[0]) && !((addr[0] + addr[1] + addr[2] + addr[3] +
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addr[4] + addr[5]) == 0x00));
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}
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static int
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lio_change_dev_flags(if_t ifp)
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{
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struct lio_ctrl_pkt nctrl;
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struct lio *lio = if_getsoftc(ifp);
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struct octeon_device *oct = lio->oct_dev;
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int ret = 0;
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bzero(&nctrl, sizeof(struct lio_ctrl_pkt));
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/* Create a ctrl pkt command to be sent to core app. */
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nctrl.ncmd.cmd64 = 0;
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nctrl.ncmd.s.cmd = LIO_CMD_CHANGE_DEVFLAGS;
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nctrl.ncmd.s.param1 = lio_get_new_flags(ifp);
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nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
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nctrl.lio = lio;
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nctrl.cb_fn = lio_ctrl_cmd_completion;
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ret = lio_send_ctrl_pkt(oct, &nctrl);
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if (ret)
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lio_dev_err(oct, "Failed to change flags ret %d\n", ret);
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return (ret);
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}
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/*
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* lio_ioctl : User calls this routine for configuring
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* the interface.
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*
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* return 0 on success, positive on failure
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*/
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int
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lio_ioctl(if_t ifp, u_long cmd, caddr_t data)
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{
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struct lio *lio = if_getsoftc(ifp);
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struct ifreq *ifrequest = (struct ifreq *)data;
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int error = 0;
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switch (cmd) {
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case SIOCSIFADDR:
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lio_dev_dbg(lio->oct_dev, "ioctl: SIOCSIFADDR\n");
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if_setflagbits(ifp, IFF_UP, 0);
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error = ether_ioctl(ifp, cmd, data);
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break;
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case SIOCSIFMTU:
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lio_dev_dbg(lio->oct_dev, "ioctl: SIOCSIFMTU\n");
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error = lio_change_mtu(ifp, ifrequest->ifr_mtu);
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break;
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case SIOCSIFFLAGS:
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lio_dev_dbg(lio->oct_dev, "ioctl: SIOCSIFFLAGS\n");
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if (if_getflags(ifp) & IFF_UP) {
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if (if_getdrvflags(ifp) & IFF_DRV_RUNNING) {
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if ((if_getflags(ifp) ^ lio->if_flags) &
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(IFF_PROMISC | IFF_ALLMULTI))
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error = lio_change_dev_flags(ifp);
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} else {
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if (!(atomic_load_acq_int(&lio->ifstate) &
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LIO_IFSTATE_DETACH))
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lio_open(lio);
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}
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} else {
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if (if_getdrvflags(ifp) & IFF_DRV_RUNNING)
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lio_stop(ifp);
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}
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lio->if_flags = if_getflags(ifp);
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break;
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case SIOCADDMULTI:
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lio_dev_dbg(lio->oct_dev, "ioctl: SIOCADDMULTI\n");
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if (if_getdrvflags(ifp) & IFF_DRV_RUNNING)
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error = lio_set_mcast_list(ifp);
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break;
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case SIOCDELMULTI:
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lio_dev_dbg(lio->oct_dev, "ioctl: SIOCSIFMULTI\n");
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break;
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case SIOCSIFMEDIA:
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lio_dev_dbg(lio->oct_dev, "ioctl: SIOCSIFMEDIA\n");
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case SIOCGIFMEDIA:
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lio_dev_dbg(lio->oct_dev, "ioctl: SIOCGIFMEDIA\n");
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case SIOCGIFXMEDIA:
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lio_dev_dbg(lio->oct_dev, "ioctl: SIOCGIFXMEDIA\n");
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error = ifmedia_ioctl(ifp, ifrequest, &lio->ifmedia, cmd);
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break;
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case SIOCSIFCAP:
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{
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int features = ifrequest->ifr_reqcap ^
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if_getcapenable(ifp);
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lio_dev_dbg(lio->oct_dev, "ioctl: SIOCSIFCAP (Set Capabilities)\n");
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if (!features)
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break;
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if (features & IFCAP_TXCSUM) {
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if_togglecapenable(ifp, IFCAP_TXCSUM);
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if (if_getcapenable(ifp) & IFCAP_TXCSUM)
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if_sethwassistbits(ifp, (CSUM_TCP |
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CSUM_UDP |
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CSUM_IP), 0);
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else
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if_sethwassistbits(ifp, 0,
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(CSUM_TCP | CSUM_UDP |
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CSUM_IP));
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}
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if (features & IFCAP_TXCSUM_IPV6) {
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if_togglecapenable(ifp, IFCAP_TXCSUM_IPV6);
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if (if_getcapenable(ifp) & IFCAP_TXCSUM_IPV6)
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if_sethwassistbits(ifp, (CSUM_UDP_IPV6 |
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CSUM_TCP_IPV6), 0);
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else
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if_sethwassistbits(ifp, 0,
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(CSUM_UDP_IPV6 |
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CSUM_TCP_IPV6));
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}
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if (features & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6))
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error |= lio_set_rx_csum(ifp, (features &
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(IFCAP_RXCSUM |
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IFCAP_RXCSUM_IPV6)));
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if (features & IFCAP_TSO4)
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error |= lio_set_tso4(ifp);
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if (features & IFCAP_TSO6)
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error |= lio_set_tso6(ifp);
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if (features & IFCAP_LRO)
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error |= lio_set_lro(ifp);
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if (features & IFCAP_VLAN_HWTAGGING)
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if_togglecapenable(ifp, IFCAP_VLAN_HWTAGGING);
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if (features & IFCAP_VLAN_HWFILTER)
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if_togglecapenable(ifp, IFCAP_VLAN_HWFILTER);
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if (features & IFCAP_VLAN_HWTSO)
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if_togglecapenable(ifp, IFCAP_VLAN_HWTSO);
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VLAN_CAPABILITIES(ifp);
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break;
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}
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default:
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lio_dev_dbg(lio->oct_dev, "ioctl: UNKNOWN (0x%X)\n", (int)cmd);
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error = ether_ioctl(ifp, cmd, data);
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break;
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}
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return (error);
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}
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static int
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lio_set_tso4(if_t ifp)
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{
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struct lio *lio = if_getsoftc(ifp);
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if (if_getcapabilities(ifp) & IFCAP_TSO4) {
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if_togglecapenable(ifp, IFCAP_TSO4);
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if (if_getcapenable(ifp) & IFCAP_TSO4)
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if_sethwassistbits(ifp, CSUM_IP_TSO, 0);
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else
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if_sethwassistbits(ifp, 0, CSUM_IP_TSO);
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} else {
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lio_dev_info(lio->oct_dev, "TSO4 capability not supported\n");
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return (EINVAL);
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}
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return (0);
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}
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static int
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lio_set_tso6(if_t ifp)
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{
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struct lio *lio = if_getsoftc(ifp);
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if (if_getcapabilities(ifp) & IFCAP_TSO6) {
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if_togglecapenable(ifp, IFCAP_TSO6);
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if (if_getcapenable(ifp) & IFCAP_TSO6)
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if_sethwassistbits(ifp, CSUM_IP6_TSO, 0);
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else
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if_sethwassistbits(ifp, 0, CSUM_IP6_TSO);
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} else {
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lio_dev_info(lio->oct_dev, "TSO6 capability not supported\n");
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return (EINVAL);
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}
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return (0);
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}
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static int
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lio_set_rx_csum(if_t ifp, uint32_t data)
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{
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struct lio *lio = if_getsoftc(ifp);
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int ret = 0;
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if (if_getcapabilities(ifp) & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)) {
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if_togglecapenable(ifp, (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6));
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if (data) {
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/* LRO requires RXCSUM */
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if ((if_getcapabilities(ifp) & IFCAP_LRO) &&
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(if_getcapenable(ifp) & IFCAP_LRO)) {
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ret = lio_set_feature(ifp, LIO_CMD_LRO_DISABLE,
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LIO_LROIPV4 |
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LIO_LROIPV6);
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if_togglecapenable(ifp, IFCAP_LRO);
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}
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}
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} else {
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lio_dev_info(lio->oct_dev, "Rx checksum offload capability not supported\n");
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return (ENODEV);
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}
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return ((ret) ? EINVAL : 0);
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}
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static int
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lio_set_lro(if_t ifp)
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{
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struct lio *lio = if_getsoftc(ifp);
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int ret = 0;
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if (!(if_getcapabilities(ifp) & IFCAP_LRO)) {
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lio_dev_info(lio->oct_dev, "LRO capability not supported\n");
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return (ENODEV);
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}
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if ((!(if_getcapenable(ifp) & IFCAP_LRO)) &&
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(if_getcapenable(ifp) & IFCAP_RXCSUM) &&
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(if_getcapenable(ifp) & IFCAP_RXCSUM_IPV6)) {
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if_togglecapenable(ifp, IFCAP_LRO);
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if (lio_hwlro)
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ret = lio_set_feature(ifp, LIO_CMD_LRO_ENABLE, LIO_LROIPV4 |
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LIO_LROIPV6);
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} else if (if_getcapenable(ifp) & IFCAP_LRO) {
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if_togglecapenable(ifp, IFCAP_LRO);
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if (lio_hwlro)
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ret = lio_set_feature(ifp, LIO_CMD_LRO_DISABLE, LIO_LROIPV4 |
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LIO_LROIPV6);
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} else
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lio_dev_info(lio->oct_dev, "LRO requires RXCSUM");
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return ((ret) ? EINVAL : 0);
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}
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static void
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lio_mtu_ctl_callback(struct octeon_device *oct, uint32_t status, void *buf)
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{
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struct lio_soft_command *sc = buf;
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volatile int *mtu_sc_ctx;
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mtu_sc_ctx = sc->ctxptr;
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if (status) {
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lio_dev_err(oct, "MTU updation ctl instruction failed. Status: %llx\n",
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LIO_CAST64(status));
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*mtu_sc_ctx = -1;
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/*
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* This barrier is required to be sure that the
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* response has been written fully.
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*/
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wmb();
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return;
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}
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*mtu_sc_ctx = 1;
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/*
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* This barrier is required to be sure that the response has been
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* written fully.
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*/
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wmb();
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}
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/* @param ifp is network device */
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static int
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lio_change_mtu(if_t ifp, int new_mtu)
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{
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struct lio *lio = if_getsoftc(ifp);
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struct octeon_device *oct = lio->oct_dev;
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struct lio_soft_command *sc;
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union octeon_cmd *ncmd;
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volatile int *mtu_sc_ctx;
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int retval = 0;
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if (lio->mtu == new_mtu)
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return (0);
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/*
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* Limit the MTU to make sure the ethernet packets are between
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* LIO_MIN_MTU_SIZE bytes and LIO_MAX_MTU_SIZE bytes
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*/
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if ((new_mtu < LIO_MIN_MTU_SIZE) || (new_mtu > LIO_MAX_MTU_SIZE)) {
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lio_dev_err(oct, "Invalid MTU: %d\n", new_mtu);
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lio_dev_err(oct, "Valid range %d and %d\n",
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LIO_MIN_MTU_SIZE, LIO_MAX_MTU_SIZE);
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return (EINVAL);
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}
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sc = lio_alloc_soft_command(oct, OCTEON_CMD_SIZE, 16,
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sizeof(*mtu_sc_ctx));
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if (sc == NULL)
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return (ENOMEM);
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ncmd = (union octeon_cmd *)sc->virtdptr;
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mtu_sc_ctx = sc->ctxptr;
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*mtu_sc_ctx = 0;
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ncmd->cmd64 = 0;
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ncmd->s.cmd = LIO_CMD_CHANGE_MTU;
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ncmd->s.param1 = new_mtu;
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lio_swap_8B_data((uint64_t *)ncmd, (OCTEON_CMD_SIZE >> 3));
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sc->iq_no = lio->linfo.txpciq[0].s.q_no;
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lio_prepare_soft_command(oct, sc, LIO_OPCODE_NIC,
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LIO_OPCODE_NIC_CMD, 0, 0, 0);
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sc->callback = lio_mtu_ctl_callback;
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sc->callback_arg = sc;
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sc->wait_time = 5000;
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retval = lio_send_soft_command(oct, sc);
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if (retval == LIO_IQ_SEND_FAILED) {
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lio_dev_info(oct,
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"Failed to send MTU update Control message\n");
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retval = EBUSY;
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goto mtu_updation_failed;
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}
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/*
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* Sleep on a wait queue till the cond flag indicates that the
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* response arrived or timed-out.
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*/
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lio_sleep_cond(oct, mtu_sc_ctx);
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if (*mtu_sc_ctx < 0) {
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retval = EBUSY;
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goto mtu_updation_failed;
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}
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lio_dev_info(oct, "MTU Changed from %d to %d\n", if_getmtu(ifp),
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new_mtu);
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if_setmtu(ifp, new_mtu);
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lio->mtu = new_mtu;
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retval = 0; /*
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* this updation is make sure that LIO_IQ_SEND_STOP case
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* also success
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*/
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mtu_updation_failed:
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lio_free_soft_command(oct, sc);
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return (retval);
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}
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/* @param ifp network device */
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int
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lio_set_mac(if_t ifp, uint8_t *p)
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{
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struct lio_ctrl_pkt nctrl;
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struct lio *lio = if_getsoftc(ifp);
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struct octeon_device *oct = lio->oct_dev;
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int ret = 0;
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if (!lio_is_valid_ether_addr(p))
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return (EADDRNOTAVAIL);
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bzero(&nctrl, sizeof(struct lio_ctrl_pkt));
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nctrl.ncmd.cmd64 = 0;
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nctrl.ncmd.s.cmd = LIO_CMD_CHANGE_MACADDR;
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nctrl.ncmd.s.param1 = 0;
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nctrl.ncmd.s.more = 1;
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nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
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nctrl.lio = lio;
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nctrl.cb_fn = lio_ctrl_cmd_completion;
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nctrl.wait_time = 100;
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nctrl.udd[0] = 0;
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/* The MAC Address is presented in network byte order. */
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memcpy((uint8_t *)&nctrl.udd[0] + 2, p, ETHER_HDR_LEN);
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ret = lio_send_ctrl_pkt(lio->oct_dev, &nctrl);
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if (ret < 0) {
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lio_dev_err(oct, "MAC Address change failed\n");
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return (ENOMEM);
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}
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memcpy(((uint8_t *)&lio->linfo.hw_addr) + 2, p, ETHER_HDR_LEN);
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return (0);
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}
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/*
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* \brief Converts a mask based on ifp flags
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* @param ifp network device
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*
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* This routine generates a lio_ifflags mask from the ifp flags
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* received from the OS.
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*/
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static inline enum lio_ifflags
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lio_get_new_flags(if_t ifp)
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{
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enum lio_ifflags f = LIO_IFFLAG_UNICAST;
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if (if_getflags(ifp) & IFF_PROMISC)
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f |= LIO_IFFLAG_PROMISC;
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if (if_getflags(ifp) & IFF_ALLMULTI)
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f |= LIO_IFFLAG_ALLMULTI;
|
|
|
|
if (if_getflags(ifp) & IFF_MULTICAST) {
|
|
f |= LIO_IFFLAG_MULTICAST;
|
|
|
|
/*
|
|
* Accept all multicast addresses if there are more than we
|
|
* can handle
|
|
*/
|
|
if (if_getamcount(ifp) > LIO_MAX_MULTICAST_ADDR)
|
|
f |= LIO_IFFLAG_ALLMULTI;
|
|
}
|
|
if (if_getflags(ifp) & IFF_BROADCAST)
|
|
f |= LIO_IFFLAG_BROADCAST;
|
|
|
|
return (f);
|
|
}
|
|
|
|
static u_int
|
|
lio_copy_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt)
|
|
{
|
|
uint64_t *mc = arg;
|
|
|
|
if (cnt == LIO_MAX_MULTICAST_ADDR)
|
|
return (0);
|
|
|
|
mc += cnt;
|
|
*mc = 0;
|
|
memcpy(((uint8_t *)mc) + 2, LLADDR(sdl), ETHER_ADDR_LEN);
|
|
/* no need to swap bytes */
|
|
|
|
return (1);
|
|
}
|
|
|
|
/* @param ifp network device */
|
|
static int
|
|
lio_set_mcast_list(if_t ifp)
|
|
{
|
|
struct lio *lio = if_getsoftc(ifp);
|
|
struct octeon_device *oct = lio->oct_dev;
|
|
struct lio_ctrl_pkt nctrl;
|
|
int mc_count;
|
|
int ret;
|
|
|
|
bzero(&nctrl, sizeof(struct lio_ctrl_pkt));
|
|
|
|
/* Create a ctrl pkt command to be sent to core app. */
|
|
nctrl.ncmd.cmd64 = 0;
|
|
nctrl.ncmd.s.cmd = LIO_CMD_SET_MULTI_LIST;
|
|
nctrl.ncmd.s.param1 = lio_get_new_flags(ifp);
|
|
nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
|
|
nctrl.lio = lio;
|
|
nctrl.cb_fn = lio_ctrl_cmd_completion;
|
|
|
|
/* copy all the addresses into the udd */
|
|
mc_count = if_foreach_llmaddr(ifp, lio_copy_maddr, &nctrl.udd[0]);
|
|
|
|
/*
|
|
* Apparently, any activity in this call from the kernel has to
|
|
* be atomic. So we won't wait for response.
|
|
*/
|
|
nctrl.wait_time = 0;
|
|
nctrl.ncmd.s.param2 = mc_count;
|
|
nctrl.ncmd.s.more = mc_count;
|
|
|
|
ret = lio_send_ctrl_pkt(lio->oct_dev, &nctrl);
|
|
if (ret < 0) {
|
|
lio_dev_err(oct, "DEVFLAGS change failed in core (ret: 0x%x)\n",
|
|
ret);
|
|
}
|
|
|
|
return ((ret) ? EINVAL : 0);
|
|
}
|