Date: Tue, 30 Jun 2015 19:54:00 +0000 (UTC) From: David C Somayajulu <davidcs@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r284971 - stable/9/sys/dev/bxe Message-ID: <201506301954.t5UJs0or091642@svn.freebsd.org>
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Author: davidcs Date: Tue Jun 30 19:53:59 2015 New Revision: 284971 URL: https://svnweb.freebsd.org/changeset/base/284971 Log: MFC r284335 PHY LOCK acquires the hardware lock via bxe_acquire_phy_lock() and releases it via bxe_release_phy_lock(). It was simply acquiring a mutex earlier which can cause the PHY to use bogus values. Fixes intermittent link failures. bxe_ioctl() completes all functions within its context as opposed to a taskqueue earlier. bxe_handle_rx_mode_tq() no longer required. bxe_set_rx_mode() handles the functionality within its context Submitted by:gary.zambrano@qlogic.com Modified: stable/9/sys/dev/bxe/bxe.c stable/9/sys/dev/bxe/bxe.h stable/9/sys/dev/bxe/ecore_reg.h Directory Properties: stable/9/ (props changed) stable/9/sys/ (props changed) stable/9/sys/dev/ (props changed) Modified: stable/9/sys/dev/bxe/bxe.c ============================================================================== --- stable/9/sys/dev/bxe/bxe.c Tue Jun 30 19:53:26 2015 (r284970) +++ stable/9/sys/dev/bxe/bxe.c Tue Jun 30 19:53:59 2015 (r284971) @@ -737,7 +737,6 @@ static __noinline int bxe_nic_unload(str uint8_t keep_link); static void bxe_handle_sp_tq(void *context, int pending); -static void bxe_handle_rx_mode_tq(void *context, int pending); static void bxe_handle_fp_tq(void *context, int pending); @@ -1185,7 +1184,17 @@ bxe_release_hw_lock(struct bxe_softc *sc REG_WR(sc, hw_lock_control_reg, resource_bit); return (0); } +static void bxe_acquire_phy_lock(struct bxe_softc *sc) +{ + BXE_PHY_LOCK(sc); + bxe_acquire_hw_lock(sc,HW_LOCK_RESOURCE_MDIO); +} +static void bxe_release_phy_lock(struct bxe_softc *sc) +{ + bxe_release_hw_lock(sc,HW_LOCK_RESOURCE_MDIO); + BXE_PHY_UNLOCK(sc); +} /* * Per pf misc lock must be acquired before the per port mcp lock. Otherwise, * had we done things the other way around, if two pfs from the same port @@ -4775,29 +4784,6 @@ bxe_handle_chip_tq(void *context, switch (work) { - case CHIP_TQ_START: - if ((sc->ifnet->if_flags & IFF_UP) && - !(sc->ifnet->if_drv_flags & IFF_DRV_RUNNING)) { - /* start the interface */ - BLOGD(sc, DBG_LOAD, "Starting the interface...\n"); - BXE_CORE_LOCK(sc); - bxe_init_locked(sc); - BXE_CORE_UNLOCK(sc); - } - break; - - case CHIP_TQ_STOP: - if (!(sc->ifnet->if_flags & IFF_UP) && - (sc->ifnet->if_drv_flags & IFF_DRV_RUNNING)) { - /* bring down the interface */ - BLOGD(sc, DBG_LOAD, "Stopping the interface...\n"); - bxe_periodic_stop(sc); - BXE_CORE_LOCK(sc); - bxe_stop_locked(sc); - BXE_CORE_UNLOCK(sc); - } - break; - case CHIP_TQ_REINIT: if (sc->ifnet->if_drv_flags & IFF_DRV_RUNNING) { /* restart the interface */ @@ -4867,21 +4853,22 @@ bxe_ioctl(struct ifnet *ifp, /* toggle the interface state up or down */ BLOGD(sc, DBG_IOCTL, "Received SIOCSIFFLAGS ioctl\n"); + BXE_CORE_LOCK(sc); /* check if the interface is up */ if (ifp->if_flags & IFF_UP) { if (ifp->if_drv_flags & IFF_DRV_RUNNING) { /* set the receive mode flags */ bxe_set_rx_mode(sc); } else { - atomic_store_rel_long(&sc->chip_tq_flags, CHIP_TQ_START); - taskqueue_enqueue(sc->chip_tq, &sc->chip_tq_task); + bxe_init_locked(sc); } } else { if (ifp->if_drv_flags & IFF_DRV_RUNNING) { - atomic_store_rel_long(&sc->chip_tq_flags, CHIP_TQ_STOP); - taskqueue_enqueue(sc->chip_tq, &sc->chip_tq_task); + bxe_periodic_stop(sc); + bxe_stop_locked(sc); } } + BXE_CORE_UNLOCK(sc); break; @@ -4893,7 +4880,9 @@ bxe_ioctl(struct ifnet *ifp, /* check if the interface is up */ if (ifp->if_drv_flags & IFF_DRV_RUNNING) { /* set the receive mode flags */ + BXE_CORE_LOCK(sc); bxe_set_rx_mode(sc); + BXE_CORE_UNLOCK(sc); } break; @@ -5051,8 +5040,11 @@ bxe_ioctl(struct ifnet *ifp, if (reinit && (sc->ifnet->if_drv_flags & IFF_DRV_RUNNING)) { BLOGD(sc, DBG_LOAD | DBG_IOCTL, "Re-initializing hardware from IOCTL change\n"); - atomic_store_rel_long(&sc->chip_tq_flags, CHIP_TQ_REINIT); - taskqueue_enqueue(sc->chip_tq, &sc->chip_tq_task); + bxe_periodic_stop(sc); + BXE_CORE_LOCK(sc); + bxe_stop_locked(sc); + bxe_init_locked(sc); + BXE_CORE_UNLOCK(sc); } return (error); @@ -7503,8 +7495,7 @@ bxe_attn_int_asserted(struct bxe_softc * if (asserted & ATTN_HARD_WIRED_MASK) { if (asserted & ATTN_NIG_FOR_FUNC) { - BXE_PHY_LOCK(sc); - + bxe_acquire_phy_lock(sc); /* save nig interrupt mask */ nig_mask = REG_RD(sc, nig_int_mask_addr); @@ -7597,7 +7588,7 @@ bxe_attn_int_asserted(struct bxe_softc * REG_WR(sc, nig_int_mask_addr, nig_mask); - BXE_PHY_UNLOCK(sc); + bxe_release_phy_lock(sc); } } @@ -8355,10 +8346,10 @@ bxe_attn_int_deasserted3(struct bxe_soft if (sc->link_vars.periodic_flags & ELINK_PERIODIC_FLAGS_LINK_EVENT) { /* sync with link */ - BXE_PHY_LOCK(sc); + bxe_acquire_phy_lock(sc); sc->link_vars.periodic_flags &= ~ELINK_PERIODIC_FLAGS_LINK_EVENT; - BXE_PHY_UNLOCK(sc); + bxe_release_phy_lock(sc); if (IS_MF(sc)) ; // XXX bxe_link_sync_notify(sc); bxe_link_report(sc); @@ -8551,9 +8542,9 @@ bxe_attn_int_deasserted0(struct bxe_soft } if ((attn & sc->link_vars.aeu_int_mask) && sc->port.pmf) { - BXE_PHY_LOCK(sc); + bxe_acquire_phy_lock(sc); elink_handle_module_detect_int(&sc->link_params); - BXE_PHY_UNLOCK(sc); + bxe_release_phy_lock(sc); } if (attn & HW_INTERRUT_ASSERT_SET_0) { @@ -9580,11 +9571,6 @@ bxe_interrupt_detach(struct bxe_softc *s } } - if (sc->rx_mode_tq) { - taskqueue_drain(sc->rx_mode_tq, &sc->rx_mode_tq_task); - taskqueue_free(sc->rx_mode_tq); - sc->rx_mode_tq = NULL; - } if (sc->sp_tq) { taskqueue_drain(sc->sp_tq, &sc->sp_tq_task); @@ -9618,14 +9604,6 @@ bxe_interrupt_attach(struct bxe_softc *s taskqueue_start_threads(&sc->sp_tq, 1, PWAIT, /* lower priority */ "%s", sc->sp_tq_name); - snprintf(sc->rx_mode_tq_name, sizeof(sc->rx_mode_tq_name), - "bxe%d_rx_mode_tq", sc->unit); - TASK_INIT(&sc->rx_mode_tq_task, 0, bxe_handle_rx_mode_tq, sc); - sc->rx_mode_tq = taskqueue_create_fast(sc->rx_mode_tq_name, M_NOWAIT, - taskqueue_thread_enqueue, - &sc->rx_mode_tq); - taskqueue_start_threads(&sc->rx_mode_tq, 1, PWAIT, /* lower priority */ - "%s", sc->rx_mode_tq_name); for (i = 0; i < sc->num_queues; i++) { fp = &sc->fp[i]; @@ -12379,9 +12357,9 @@ bxe_link_report_locked(struct bxe_softc static void bxe_link_report(struct bxe_softc *sc) { - BXE_PHY_LOCK(sc); + bxe_acquire_phy_lock(sc); bxe_link_report_locked(sc); - BXE_PHY_UNLOCK(sc); + bxe_release_phy_lock(sc); } static void @@ -12497,7 +12475,7 @@ bxe_initial_phy_init(struct bxe_softc *s sc->link_params.feature_config_flags |= feat; } - BXE_PHY_LOCK(sc); + bxe_acquire_phy_lock(sc); if (load_mode == LOAD_DIAG) { lp->loopback_mode = ELINK_LOOPBACK_XGXS; @@ -12518,7 +12496,7 @@ bxe_initial_phy_init(struct bxe_softc *s rc = elink_phy_init(&sc->link_params, &sc->link_vars); - BXE_PHY_UNLOCK(sc); + bxe_release_phy_lock(sc); bxe_calc_fc_adv(sc); @@ -12706,18 +12684,13 @@ bxe_set_uc_list(struct bxe_softc *sc) } static void -bxe_handle_rx_mode_tq(void *context, - int pending) +bxe_set_rx_mode(struct bxe_softc *sc) { - struct bxe_softc *sc = (struct bxe_softc *)context; struct ifnet *ifp = sc->ifnet; uint32_t rx_mode = BXE_RX_MODE_NORMAL; - BXE_CORE_LOCK(sc); - if (sc->state != BXE_STATE_OPEN) { BLOGD(sc, DBG_SP, "state is %x, returning\n", sc->state); - BXE_CORE_UNLOCK(sc); return; } @@ -12759,7 +12732,6 @@ bxe_handle_rx_mode_tq(void *context, if (bxe_test_bit(ECORE_FILTER_RX_MODE_PENDING, &sc->sp_state)) { BLOGD(sc, DBG_LOAD, "Scheduled setting rx_mode with ECORE...\n"); bxe_set_bit(ECORE_FILTER_RX_MODE_SCHED, &sc->sp_state); - BXE_CORE_UNLOCK(sc); return; } @@ -12779,14 +12751,8 @@ bxe_handle_rx_mode_tq(void *context, } #endif - BXE_CORE_UNLOCK(sc); } -static void -bxe_set_rx_mode(struct bxe_softc *sc) -{ - taskqueue_enqueue(sc->rx_mode_tq, &sc->rx_mode_tq_task); -} /* update flags in shmem */ static void @@ -12857,13 +12823,13 @@ bxe_periodic_callout_func(void *xsc) */ mb(); if (sc->port.pmf) { - BXE_PHY_LOCK(sc); + bxe_acquire_phy_lock(sc); elink_period_func(&sc->link_params, &sc->link_vars); - BXE_PHY_UNLOCK(sc); + bxe_release_phy_lock(sc); } } - if (IS_PF(sc) && !BXE_NOMCP(sc)) { + if (IS_PF(sc) && !(sc->flags & BXE_NO_PULSE)) { int mb_idx = SC_FW_MB_IDX(sc); uint32_t drv_pulse; uint32_t mcp_pulse; @@ -13007,6 +12973,11 @@ bxe_nic_load(struct bxe_softc *sc, } } + /* set ALWAYS_ALIVE bit in shmem */ + sc->fw_drv_pulse_wr_seq |= DRV_PULSE_ALWAYS_ALIVE; + bxe_drv_pulse(sc); + sc->flags |= BXE_NO_PULSE; + /* attach interrupts */ if (bxe_interrupt_attach(sc) != 0) { sc->state = BXE_STATE_CLOSED; @@ -16764,10 +16735,10 @@ bxe_common_init_phy(struct bxe_softc *sc shmem2_base[1] = SHMEM2_RD(sc, other_shmem2_base_addr); } - BXE_PHY_LOCK(sc); + bxe_acquire_phy_lock(sc); elink_common_init_phy(sc, shmem_base, shmem2_base, sc->devinfo.chip_id, 0); - BXE_PHY_UNLOCK(sc); + bxe_release_phy_lock(sc); } static void @@ -18644,9 +18615,9 @@ static void bxe_link_reset(struct bxe_softc *sc) { if (!BXE_NOMCP(sc)) { - BXE_PHY_LOCK(sc); + bxe_acquire_phy_lock(sc); elink_lfa_reset(&sc->link_params, &sc->link_vars); - BXE_PHY_UNLOCK(sc); + bxe_release_phy_lock(sc); } else { if (!CHIP_REV_IS_SLOW(sc)) { BLOGW(sc, "Bootcode is missing - cannot reset link\n"); Modified: stable/9/sys/dev/bxe/bxe.h ============================================================================== --- stable/9/sys/dev/bxe/bxe.h Tue Jun 30 19:53:26 2015 (r284970) +++ stable/9/sys/dev/bxe/bxe.h Tue Jun 30 19:53:59 2015 (r284971) @@ -1400,6 +1400,7 @@ struct bxe_softc { //#define BXE_SAFC_TX_FLAG 0x00000400 #define BXE_MF_FUNC_DIS 0x00000800 #define BXE_TX_SWITCHING 0x00001000 +#define BXE_NO_PULSE 0x00002000 unsigned long debug; /* per-instance debug logging config */ @@ -1429,11 +1430,6 @@ struct bxe_softc { struct taskqueue *sp_tq; char sp_tq_name[32]; - /* set rx_mode asynchronous taskqueue */ - struct task rx_mode_tq_task; - struct taskqueue *rx_mode_tq; - char rx_mode_tq_name[32]; - struct bxe_fastpath fp[MAX_RSS_CHAINS]; struct bxe_sp_objs sp_objs[MAX_RSS_CHAINS]; Modified: stable/9/sys/dev/bxe/ecore_reg.h ============================================================================== --- stable/9/sys/dev/bxe/ecore_reg.h Tue Jun 30 19:53:26 2015 (r284970) +++ stable/9/sys/dev/bxe/ecore_reg.h Tue Jun 30 19:53:59 2015 (r284971) @@ -1965,6 +1965,7 @@ __FBSDID("$FreeBSD$"); #define MISC_SPIO_SPIO5 0x20 #define HW_LOCK_MAX_RESOURCE_VALUE 31 #define HW_LOCK_RESOURCE_DRV_FLAGS 10 +#define HW_LOCK_RESOURCE_MDIO 0 #define HW_LOCK_RESOURCE_GPIO 1 #define HW_LOCK_RESOURCE_NVRAM 12 #define HW_LOCK_RESOURCE_PORT0_ATT_MASK 3
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