net/bnx2x: fix FW command timeout during stop

This patch fixes firmware command timeout error seen during device stop
while stopping queues. It patially reverts an earlier preventive change
commit 91b7e432bcef ("net/bnx2x: disable fast path interrupts") to now
enable fast path interrupts.

The original issue of performance degradation is not observed anymore,
with or without the fix.

Fixes: 91b7e432bcef ("net/bnx2x: disable fast path interrupts")
Cc: stable@dpdk.org
Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>

diff --git a/drivers/net/bnx2x/bnx2x.c b/drivers/net/bnx2x/bnx2x.c
index 84ade5f..6228744 100644 (file)
--- a/drivers/net/bnx2x/bnx2x.c
+++ b/drivers/net/bnx2x/bnx2x.c
@@ -4490,6 +4490,8 @@ static void bnx2x_handle_fp_tq(struct bnx2x_fastpath *fp, int scan_fp)
        struct bnx2x_softc *sc = fp->sc;
        uint8_t more_rx = FALSE;
 
+       PMD_DRV_LOG(DEBUG, "---> FP TASK QUEUE (%d) <--", fp->index);
+
        /* update the fastpath index */
        bnx2x_update_fp_sb_idx(fp);
 
@@ -4506,7 +4508,7 @@ static void bnx2x_handle_fp_tq(struct bnx2x_fastpath *fp, int scan_fp)
        }
 
        bnx2x_ack_sb(sc, fp->igu_sb_id, USTORM_ID,
-                  le16toh(fp->fp_hc_idx), IGU_INT_DISABLE, 1);
+                  le16toh(fp->fp_hc_idx), IGU_INT_ENABLE, 1);
 }
 
 /*