diff options
| author | Ariel Elior <ariele@broadcom.com> | 2013-08-28 02:13:04 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-08-28 06:03:04 +0400 |
| commit | a3097bda78c7fb41fd3091ffb70bf7bd946e6997 (patch) | |
| tree | 2d5465e0b14fda3d836c84d2cb7e834e71818a08 /drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c | |
| parent | b4cddbd6dd9b3b9e08c26d8b7247e4e011092117 (diff) | |
| download | linux-a3097bda78c7fb41fd3091ffb70bf7bd946e6997.tar.xz | |
bnx2x: Fix VF stats sync
Since the PF gathers statistics for the VF, when the VF is about to unload
we must synchronize the release of its statistics buffer with the PF, so that
no DMA operation will be made to that address after the buffer release.
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c index fed9b1543b9f..86436c77af03 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c @@ -1993,3 +1993,14 @@ void bnx2x_afex_collect_stats(struct bnx2x *bp, void *void_afex_stats, estats->mac_discard); } } + +void bnx2x_stats_safe_exec(struct bnx2x *bp, + void (func_to_exec)(void *cookie), + void *cookie){ + if (down_timeout(&bp->stats_sema, HZ/10)) + BNX2X_ERR("Unable to acquire stats lock\n"); + bnx2x_stats_comp(bp); + func_to_exec(cookie); + __bnx2x_stats_start(bp); + up(&bp->stats_sema); +} |