netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: "Yuval Mintz" <yuvalmin@broadcom.com>
To: davem@davemloft.net, netdev@vger.kernel.org
Cc: "Dmitry Kravkov" <dmitry@broadcom.com>,
	"Yuval Mintz" <yuvalmin@broadcom.com>,
	"Eilon Greenstein" <eilong@broadcom.com>
Subject: [net PATCH v2 1/7] bnx2x: Avoid sending multiple statistics queries
Date: Tue, 11 Sep 2012 17:34:08 +0300	[thread overview]
Message-ID: <1347374054-16730-2-git-send-email-yuvalmin@broadcom.com> (raw)
In-Reply-To: <1347374054-16730-1-git-send-email-yuvalmin@broadcom.com>

From: Dmitry Kravkov <dmitry@broadcom.com>

During traffic when DCB is enabled, it is possible for multiple instances
of statistics queries to be sent to the chip - this may cause the FW to assert.

This patch prevents the sending of an additional instance of statistics query
while the previous query hasn't completed.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
index 332db64..d848dc9 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
@@ -1151,9 +1151,11 @@ static void bnx2x_stats_update(struct bnx2x *bp)
 	if (bp->port.pmf)
 		bnx2x_hw_stats_update(bp);
 
-	if (bnx2x_storm_stats_update(bp) && (bp->stats_pending++ == 3)) {
-		BNX2X_ERR("storm stats were not updated for 3 times\n");
-		bnx2x_panic();
+	if (bnx2x_storm_stats_update(bp)) {
+		if (bp->stats_pending++ == 3) {
+			BNX2X_ERR("storm stats were not updated for 3 times\n");
+			bnx2x_panic();
+		}
 		return;
 	}
 
-- 
1.7.9.rc2

  reply	other threads:[~2012-09-11 14:58 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-11 14:34 [net PATCH v2 0/7] bnx2x: bug fixes for net Yuval Mintz
2012-09-11 14:34 ` Yuval Mintz [this message]
2012-09-13 20:17   ` [net PATCH v2 1/7] bnx2x: Avoid sending multiple statistics queries David Miller
2012-09-13 20:34     ` Yuval Mintz
2012-09-13 20:38       ` David Miller
2012-09-13 20:35     ` Dmitry Kravkov
2012-09-11 14:34 ` [net PATCH v2 2/7] bnx2x: fix stats copying logic Yuval Mintz
2012-09-11 14:34 ` [net PATCH v2 3/7] bnx2x: prevent timeouts when using PFC Yuval Mintz
2012-09-11 14:34 ` [net PATCH v2 4/7] bnx2x: display the correct duplex value Yuval Mintz
2012-09-11 14:34 ` [net PATCH v2 5/7] bnx2x: correct advertisement of pause capabilities Yuval Mintz
2012-09-11 14:34 ` [net PATCH v2 6/7] bnx2x: fix registers dumped Yuval Mintz
2012-09-11 14:34 ` [net PATCH v2 7/7] bnx2x: Add missing afex code Yuval Mintz

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1347374054-16730-2-git-send-email-yuvalmin@broadcom.com \
    --to=yuvalmin@broadcom.com \
    --cc=davem@davemloft.net \
    --cc=dmitry@broadcom.com \
    --cc=eilong@broadcom.com \
    --cc=netdev@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).