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cxgb4: Include TCP as protocol when creating server filters 

We were creating LE Workaround Server Filters without specifying
IPPROTO_TCP (6) in the filters (when F_PROTOCOL is set in TP_VLAN_PRI_MAP).
This meant that UDP packets with matching IP Addresses/Ports would get
caught up in the filter and be delivered to ULDs like iw_cxgb4.
So, include the protocol information in the server filter properly.

Based on original work by Casey Leedom <leedom@chelsio.com>

Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kumar Sanghvi 2013-12-18 16:38:20 +05:30 committed by David S. Miller
parent b6f8eaece6
commit 7c89e5550c
2 changed files with 9 additions and 0 deletions
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5
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
View File

@ -4217,6 +4217,11 @@ int cxgb4_create_server_filter(const struct net_device *dev, unsigned int stid,
}
}
if (adap->filter_mode & F_PROTOCOL) {
f->fs.val.proto = IPPROTO_TCP;
f->fs.mask.proto = ~0;
}
f->fs.dirsteer = 1;
f->fs.iq = queue;
/* Mark filter as locked */

4
drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
View File

@ -1171,6 +1171,10 @@
#define A_TP_TX_SCHED_PCMD 0x25
#define S_PROTOCOL 5
#define V_PROTOCOL(x) ((x) << S_PROTOCOL)
#define F_PROTOCOL V_PROTOCOL(1U)
#define S_PORT 1
#define V_PORT(x) ((x) << S_PORT)
#define F_PORT V_PORT(1U)