From: Kumar Sanghvi <kuma...@chelsio.com>
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 <lee...@chelsio.com>
Signed-off-by: Hariprasad Shenai <haripra...@chelsio.com>
Signed-off-by: Kumar Sanghvi <kuma...@chelsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 5 +++++
drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | 4 ++++
2 files changed, 9 insertions(+)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index f1015ee..2cd7098 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -4222,6 +4222,11 @@ 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 */
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
index 0a8205d..d3dd218 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
@@ -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)
--
1.8.0
--
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