diff options
| author |   Amit Kumar Salecha <amit.salecha@qlogic.com> | 2011-04-12 17:05:55 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-04-13 11:53:11 -0700 |
| commit | 91a403caf0f26c71ce4407fd235b2d6fb225fba9 (patch) | |
| tree | 9c542d7ab98275d87e32eb97056025a14b520b16 /drivers/net/qlcnic/qlcnic.h | |
| parent | net: can: mscan: fix build breakage in mpc5xxx_can (diff) | |
| download | linux-dev-91a403caf0f26c71ce4407fd235b2d6fb225fba9.tar.xz linux-dev-91a403caf0f26c71ce4407fd235b2d6fb225fba9.zip | |
qlcnic: limit skb frags for non tso packet
Machines are getting deadlock in four node cluster environment.
All nodes are accessing (find /gfs2 -depth -print|cpio -ocv > /dev/null)
200 GB storage on a GFS2 filesystem.
This result in memory fragmentation and driver receives 18 frags for
1448 byte packets.
For non tso packet, fw drops the tx request, if it has >14 frags.
Fixing it by pulling extra frags.
Cc: stable@kernel.org
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/qlcnic/qlcnic.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/qlcnic/qlcnic.h b/drivers/net/qlcnic/qlcnic.h index dc44564ef6f9..b0dead00b2d1 100644 --- a/drivers/net/qlcnic/qlcnic.h +++ b/drivers/net/qlcnic/qlcnic.h @@ -99,6 +99,7 @@ #define TX_UDPV6_PKT 0x0c /* Tx defines */ +#define QLCNIC_MAX_FRAGS_PER_TX 14 #define MAX_TSO_HEADER_DESC 2 #define MGMT_CMD_DESC_RESV 4 #define TX_STOP_THRESH ((MAX_SKB_FRAGS >> 2) + MAX_TSO_HEADER_DESC \ |