[PATCH v4 22/31] net/ena/base: handle command abort

[shaibran at amazon.com]

From: Shai Brandes <shaibran at amazon.com>

Currently admin_queue->stats.aborted_cmd counter is incremented if an
admin command status is ENA_CMD_ABORTED and only if the admin queue is
in polling mode.
This commit fixes handling the case of incrementing
admin_queue->stats.aborted_cmd if the admin queue is in interrupt
mode as well.
Also added a verification that the command status is a valid
completion status which is currently verified only if the admin queue
is in polling mode.

Signed-off-by: Shai Brandes <shaibran at amazon.com>
Reviewed-by: Amit Bernstein <amitbern at amazon.com>
---
 drivers/net/ena/base/ena_com.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/net/ena/base/ena_com.c b/drivers/net/ena/base/ena_com.c
index 053e095585..b98540ba63 100644
--- a/drivers/net/ena/base/ena_com.c
+++ b/drivers/net/ena/base/ena_com.c
@@ -824,8 +824,19 @@ static int ena_com_wait_and_process_admin_cq_interrupts(struct ena_comp_ctx *com
 			ret = ENA_COM_TIMER_EXPIRED;
 			goto err;
 		}
+	} else if (unlikely(comp_ctx->status == ENA_CMD_ABORTED)) {
+		ena_trc_err(admin_queue->ena_dev, "Command was aborted\n");
+		ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
+		admin_queue->stats.aborted_cmd++;
+		ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags);
+		ret = ENA_COM_NO_DEVICE;
+		goto err;
 	}
 
+	ENA_WARN(comp_ctx->status != ENA_CMD_COMPLETED,
+		 admin_queue->ena_dev, "Invalid comp status %d\n",
+		 comp_ctx->status);
+
 	ret = ena_com_comp_status_to_errno(admin_queue, comp_ctx->comp_status);
 err:
 	comp_ctxt_release(admin_queue, comp_ctx);
-- 
2.17.1