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octeontx2-af: Add support for RSS hashing based on Transport protocol field

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Add support to choose RSS flow key algorithm with IPv4 transport protocol
field included in hashing input data. This will be enabled by default.
There-by enabling 3/5 tuple hash

Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: George Cherian <george.cherian@marvell.com>
Link: https://lore.kernel.org/r/20201120093906.2873616-1-george.cherian@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
George Cherian 2020-11-20 15:09:06 +05:30 committed by Jakub Kicinski
parent 5e08723967
commit f9e425e99b
3 changed files with 10 additions and 1 deletions
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1
drivers/net/ethernet/marvell/octeontx2/af/mbox.h
View File

@ -716,6 +716,7 @@ struct nix_rss_flowkey_cfg {
#define NIX_FLOW_KEY_TYPE_INNR_SCTP BIT(16)
#define NIX_FLOW_KEY_TYPE_INNR_ETH_DMAC BIT(17)
#define NIX_FLOW_KEY_TYPE_VLAN BIT(20)
#define NIX_FLOW_KEY_TYPE_IPV4_PROTO BIT(21)
u32 flowkey_cfg; /* Flowkey types selected */
u8 group; /* RSS context or group */
};

7
drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
View File

@ -2626,6 +2626,13 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg)
/* This should be set to 1, when SEL_CHAN is set */
field->bytesm1 = 1;
break;
case NIX_FLOW_KEY_TYPE_IPV4_PROTO:
field->lid = NPC_LID_LC;
field->hdr_offset = 9; /* offset */
field->bytesm1 = 0; /* 1 byte */
field->ltype_match = NPC_LT_LC_IP;
field->ltype_mask = 0xF;
break;
case NIX_FLOW_KEY_TYPE_IPV4:
case NIX_FLOW_KEY_TYPE_INNR_IPV4:
field->lid = NPC_LID_LC;

3
drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
View File

@ -359,7 +359,8 @@ int otx2_rss_init(struct otx2_nic *pfvf)
rss->flowkey_cfg = rss->enable ? rss->flowkey_cfg :
NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6 |
NIX_FLOW_KEY_TYPE_TCP | NIX_FLOW_KEY_TYPE_UDP |
NIX_FLOW_KEY_TYPE_SCTP | NIX_FLOW_KEY_TYPE_VLAN;
NIX_FLOW_KEY_TYPE_SCTP | NIX_FLOW_KEY_TYPE_VLAN |
NIX_FLOW_KEY_TYPE_IPV4_PROTO;
ret = otx2_set_flowkey_cfg(pfvf);
if (ret)