From: Anjali Singhai Jain Date: Wed, 9 Dec 2015 23:50:24 +0000 (-0800) Subject: i40e/i40evf: Fix RSS rx-flow-hash configuration through ethtool X-Git-Tag: firefly_0821_release~176^2~4^2~31^2~122 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8a840b7f37551fd072147968eafe447e2572e180;p=firefly-linux-kernel-4.4.55.git i40e/i40evf: Fix RSS rx-flow-hash configuration through ethtool [ Upstream commit 6e35c04cf633e55648acb9ccabff42aa37bd4044 ] This patch fixes the Hash PCTYPE enable for X722 since it supports a broader selection of PCTYPES for TCP and UDP. This patch also fixes a bug in XL710, X710, X722 support for RSS, as of now we cannot reduce the (4)tuple for RSS for TCP/IPv4/IPV6 or UDP/IPv4/IPv6 packets since this requires a product feature change that comes in a later release. A VF should never be allowed to change the tuples for RSS for any PCTYPE since that's a global setting for the device in case of i40e devices. Change-ID: I0ee7203c9b24813260f58f3220798bc9d9ac4a12 Signed-off-by: Anjali Singhai Jain Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c index 3f385ffe420f..488a50d59dca 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c +++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c @@ -2164,8 +2164,7 @@ static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) case TCP_V4_FLOW: switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { case 0: - hena &= ~BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP); - break; + return -EINVAL; case (RXH_L4_B_0_1 | RXH_L4_B_2_3): hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP); break; @@ -2176,8 +2175,7 @@ static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) case TCP_V6_FLOW: switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { case 0: - hena &= ~BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP); - break; + return -EINVAL; case (RXH_L4_B_0_1 | RXH_L4_B_2_3): hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP); break; @@ -2188,9 +2186,7 @@ static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) case UDP_V4_FLOW: switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { case 0: - hena &= ~(BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) | - BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4)); - break; + return -EINVAL; case (RXH_L4_B_0_1 | RXH_L4_B_2_3): hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) | BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4)); @@ -2202,9 +2198,7 @@ static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) case UDP_V6_FLOW: switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { case 0: - hena &= ~(BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) | - BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6)); - break; + return -EINVAL; case (RXH_L4_B_0_1 | RXH_L4_B_2_3): hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) | BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6)); diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c b/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c index 4790437a50ac..2ac62efc36f7 100644 --- a/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c +++ b/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c @@ -477,54 +477,30 @@ static int i40evf_set_rss_hash_opt(struct i40evf_adapter *adapter, switch (nfc->flow_type) { case TCP_V4_FLOW: - switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { - case 0: - hena &= ~BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP); - break; - case (RXH_L4_B_0_1 | RXH_L4_B_2_3): + if (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP); - break; - default: + else return -EINVAL; - } break; case TCP_V6_FLOW: - switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { - case 0: - hena &= ~BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP); - break; - case (RXH_L4_B_0_1 | RXH_L4_B_2_3): + if (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP); - break; - default: + else return -EINVAL; - } break; case UDP_V4_FLOW: - switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { - case 0: - hena &= ~(BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) | - BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4)); - break; - case (RXH_L4_B_0_1 | RXH_L4_B_2_3): + if (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) | BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4)); - break; - default: + } else { return -EINVAL; } break; case UDP_V6_FLOW: - switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { - case 0: - hena &= ~(BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) | - BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6)); - break; - case (RXH_L4_B_0_1 | RXH_L4_B_2_3): + if (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) | BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6)); - break; - default: + } else { return -EINVAL; } break;