[dpdk-dev] [PATCH 13/16] net/bnxt: add more checks for fw reset

[Somnath Kotur]

From: Kalesh AP <kalesh-anakkur.pura...@broadcom.com>

Added check for fw reset or fw errors in few more routines.
While processing the events, if it is fw fatal or non-fatal
event, there is no need to process the remaining events as
driver triggers recovery mechanism.

Also added a check for fw reset or fatal error in bnxt_disable_int()
to avoid bar access in case of fatal error.

Signed-off-by: Kalesh AP <kalesh-anakkur.pura...@broadcom.com>
Reviewed-by: Rahul Gupta <rahul.gu...@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.ko...@broadcom.com>
Reviewed-by: Ajit Kumar Khaparde <ajit.khapa...@broadcom.com>
Signed-off-by: Somnath Kotur <somnath.ko...@broadcom.com>
---
 drivers/net/bnxt/bnxt_irq.c | 8 ++++++++
 drivers/net/bnxt/bnxt_rxr.c | 3 +++
 2 files changed, 11 insertions(+)

diff --git a/drivers/net/bnxt/bnxt_irq.c b/drivers/net/bnxt/bnxt_irq.c
index 4feb637..846325e 100644
--- a/drivers/net/bnxt/bnxt_irq.c
+++ b/drivers/net/bnxt/bnxt_irq.c
@@ -37,6 +37,11 @@ void bnxt_int_handler(void *param)
                        return;
                }
 
+               if (is_bnxt_in_error(bp)) {
+                       pthread_mutex_unlock(&bp->def_cp_lock);
+                       return;
+               }
+
                cons = RING_CMP(cpr->cp_ring_struct, raw_cons);
                cmp = &cpr->cp_desc_ring[cons];
 
@@ -104,6 +109,9 @@ void bnxt_disable_int(struct bnxt *bp)
        if (BNXT_NUM_ASYNC_CPR(bp) == 0)
                return;
 
+       if (is_bnxt_in_error(bp))
+               return;
+
        if (!cpr || !cpr->cp_db.doorbell)
                return;
 
diff --git a/drivers/net/bnxt/bnxt_rxr.c b/drivers/net/bnxt/bnxt_rxr.c
index 03dae57..ee1444c 100644
--- a/drivers/net/bnxt/bnxt_rxr.c
+++ b/drivers/net/bnxt/bnxt_rxr.c
@@ -639,6 +639,9 @@ uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf 
**rx_pkts,
                        evt =
                        bnxt_event_hwrm_resp_handler(rxq->bp,
                                                     (struct cmpl_base *)rxcmp);
+                       /* If the async event is Fatal error, return */
+                       if (unlikely(is_bnxt_in_error(rxq->bp)))
+                               goto done;
                }
 
                raw_cons = NEXT_RAW_CMP(raw_cons);
-- 
1.8.3.1