diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt.c')
-rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.c | 89 |
1 files changed, 46 insertions, 43 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 3fbc8427be2e..277573b3d261 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -2953,6 +2953,45 @@ alloc_mem_err: return rc; } +static void bnxt_disable_int(struct bnxt *bp) +{ + int i; + + if (!bp->bnapi) + return; + + for (i = 0; i < bp->cp_nr_rings; i++) { + struct bnxt_napi *bnapi = bp->bnapi[i]; + struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; + + BNXT_CP_DB(cpr->cp_doorbell, cpr->cp_raw_cons); + } +} + +static void bnxt_disable_int_sync(struct bnxt *bp) +{ + int i; + + atomic_inc(&bp->intr_sem); + + bnxt_disable_int(bp); + for (i = 0; i < bp->cp_nr_rings; i++) + synchronize_irq(bp->irq_tbl[i].vector); +} + +static void bnxt_enable_int(struct bnxt *bp) +{ + int i; + + atomic_set(&bp->intr_sem, 0); + for (i = 0; i < bp->cp_nr_rings; i++) { + struct bnxt_napi *bnapi = bp->bnapi[i]; + struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; + + BNXT_CP_DB_REARM(cpr->cp_doorbell, cpr->cp_raw_cons); + } +} + void bnxt_hwrm_cmd_hdr_init(struct bnxt *bp, void *request, u16 req_type, u16 cmpl_ring, u16 target_id) { @@ -3937,6 +3976,12 @@ static void bnxt_hwrm_ring_free(struct bnxt *bp, bool close_path) } } + /* The completion rings are about to be freed. After that the + * IRQ doorbell will not work anymore. So we need to disable + * IRQ here. + */ + bnxt_disable_int_sync(bp); + for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; @@ -4658,34 +4703,6 @@ static int bnxt_init_nic(struct bnxt *bp, bool irq_re_init) return bnxt_init_chip(bp, irq_re_init); } -static void bnxt_disable_int(struct bnxt *bp) -{ - int i; - - if (!bp->bnapi) - return; - - for (i = 0; i < bp->cp_nr_rings; i++) { - struct bnxt_napi *bnapi = bp->bnapi[i]; - struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; - - BNXT_CP_DB(cpr->cp_doorbell, cpr->cp_raw_cons); - } -} - -static void bnxt_enable_int(struct bnxt *bp) -{ - int i; - - atomic_set(&bp->intr_sem, 0); - for (i = 0; i < bp->cp_nr_rings; i++) { - struct bnxt_napi *bnapi = bp->bnapi[i]; - struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; - - BNXT_CP_DB_REARM(cpr->cp_doorbell, cpr->cp_raw_cons); - } -} - static int bnxt_set_real_num_queues(struct bnxt *bp) { int rc; @@ -5640,19 +5657,6 @@ static int bnxt_open(struct net_device *dev) return __bnxt_open_nic(bp, true, true); } -static void bnxt_disable_int_sync(struct bnxt *bp) -{ - int i; - - atomic_inc(&bp->intr_sem); - if (!netif_running(bp->dev)) - return; - - bnxt_disable_int(bp); - for (i = 0; i < bp->cp_nr_rings; i++) - synchronize_irq(bp->irq_tbl[i].vector); -} - int bnxt_close_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) { int rc = 0; @@ -5674,13 +5678,12 @@ int bnxt_close_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) while (test_bit(BNXT_STATE_IN_SP_TASK, &bp->state)) msleep(20); - /* Flush rings before disabling interrupts */ + /* Flush rings and and disable interrupts */ bnxt_shutdown_nic(bp, irq_re_init); /* TODO CHIMP_FW: Link/PHY related cleanup if (link_re_init) */ bnxt_disable_napi(bp); - bnxt_disable_int_sync(bp); del_timer_sync(&bp->timer); bnxt_free_skbs(bp); |