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Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt.c')
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt.c89
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);