diff options
| author | Amit Kumar Salecha <amit.salecha@qlogic.com> | 2011-04-12 13:05:55 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-04-13 14:53:11 -0400 |
| commit | 91a403caf0f26c71ce4407fd235b2d6fb225fba9 (patch) | |
| tree | 9c542d7ab98275d87e32eb97056025a14b520b16 /drivers/net/qlcnic/qlcnic.h | |
| parent | 7c9f6472d46d07000c197e1d24fa2a332606968e (diff) | |
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 'drivers/net/qlcnic/qlcnic.h')
| -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 @@ | |||
| 99 | #define TX_UDPV6_PKT 0x0c | 99 | #define TX_UDPV6_PKT 0x0c |
| 100 | 100 | ||
| 101 | /* Tx defines */ | 101 | /* Tx defines */ |
| 102 | #define QLCNIC_MAX_FRAGS_PER_TX 14 | ||
| 102 | #define MAX_TSO_HEADER_DESC 2 | 103 | #define MAX_TSO_HEADER_DESC 2 |
| 103 | #define MGMT_CMD_DESC_RESV 4 | 104 | #define MGMT_CMD_DESC_RESV 4 |
| 104 | #define TX_STOP_THRESH ((MAX_SKB_FRAGS >> 2) + MAX_TSO_HEADER_DESC \ | 105 | #define TX_STOP_THRESH ((MAX_SKB_FRAGS >> 2) + MAX_TSO_HEADER_DESC \ |