diff options
| author | Subbaraya Sundeep <sbhatta@marvell.com> | 2021-01-23 08:09:12 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-01-26 05:14:58 +0300 |
| commit | b9b7421a01d82c474227fce04f0468f1c70be306 (patch) | |
| tree | dabff728234db5914a7613efc3ff8471f31ac712 /drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c | |
| parent | 24f97b6af9a000bfda9ee693110189d7d4d629fe (diff) | |
| download | linux-b9b7421a01d82c474227fce04f0468f1c70be306.tar.xz | |
octeontx2-af: Support ESP/AH RSS hashing
Support SPI and sequence number fields of
ESP/AH header to be hashed for RSS. By default
ESP/AH fields are not considered for RSS and
needs to be set explicitly as below:
ethtool -U eth0 rx-flow-hash esp4 sdfn
or
ethtool -U eth0 rx-flow-hash ah4 sdfn
or
ethtool -U eth0 rx-flow-hash esp6 sdfn
or
ethtool -U eth0 rx-flow-hash ah6 sdfn
To disable hashing of ESP fields:
ethtool -U eth0 rx-flow-hash esp4 sd
or
ethtool -U eth0 rx-flow-hash ah4 sd
or
ethtool -U eth0 rx-flow-hash esp6 sd
or
ethtool -U eth0 rx-flow-hash ah6 sd
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Link: https://lore.kernel.org/r/1611378552-13288-1-git-send-email-sundeep.lkml@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c index aaba0454d188..e0199f0e4a6c 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c @@ -448,10 +448,14 @@ static int otx2_get_rss_hash_opts(struct otx2_nic *pfvf, nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; break; case AH_ESP_V4_FLOW: + case AH_ESP_V6_FLOW: + if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_ESP) + nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; + break; case AH_V4_FLOW: case ESP_V4_FLOW: case IPV4_FLOW: - case AH_ESP_V6_FLOW: + break; case AH_V6_FLOW: case ESP_V6_FLOW: case IPV6_FLOW: @@ -459,6 +463,7 @@ static int otx2_get_rss_hash_opts(struct otx2_nic *pfvf, default: return -EINVAL; } + return 0; } @@ -527,6 +532,36 @@ static int otx2_set_rss_hash_opts(struct otx2_nic *pfvf, return -EINVAL; } break; + case AH_ESP_V4_FLOW: + case AH_ESP_V6_FLOW: + switch (nfc->data & rxh_l4) { + case 0: + rss_cfg &= ~(NIX_FLOW_KEY_TYPE_ESP | + NIX_FLOW_KEY_TYPE_AH); + rss_cfg |= NIX_FLOW_KEY_TYPE_VLAN | + NIX_FLOW_KEY_TYPE_IPV4_PROTO; + break; + case (RXH_L4_B_0_1 | RXH_L4_B_2_3): + /* If VLAN hashing is also requested for ESP then do not + * allow because of hardware 40 bytes flow key limit. + */ + if (rss_cfg & NIX_FLOW_KEY_TYPE_VLAN) { + netdev_err(pfvf->netdev, + "RSS hash of ESP or AH with VLAN is not supported\n"); + return -EOPNOTSUPP; + } + + rss_cfg |= NIX_FLOW_KEY_TYPE_ESP | NIX_FLOW_KEY_TYPE_AH; + /* Disable IPv4 proto hashing since IPv6 SA+DA(32 bytes) + * and ESP SPI+sequence(8 bytes) uses hardware maximum + * limit of 40 byte flow key. + */ + rss_cfg &= ~NIX_FLOW_KEY_TYPE_IPV4_PROTO; + break; + default: + return -EINVAL; + } + break; case IPV4_FLOW: case IPV6_FLOW: rss_cfg = NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6; |