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authorEdward Cree <ecree@solarflare.com>2016-11-04 01:12:58 +0300
committerDavid S. Miller <davem@davemloft.net>2016-11-09 21:59:17 +0300
commitb718c88a62c9adf24d8d1a06902f06f0149efac7 (patch)
tree474dc599b36e80d9433129460ad29785381f1a8e /drivers/net/ethernet/sfc
parenta33a4c73810589f80b8a37477e1b28b4c1d61913 (diff)
downloadlinux-b718c88a62c9adf24d8d1a06902f06f0149efac7.tar.xz
sfc: report 4-tuple UDP hashing to ethtool, if it's enabled
Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc')
-rw-r--r--drivers/net/ethernet/sfc/ef10.c6
-rw-r--r--drivers/net/ethernet/sfc/ethtool.c12
-rw-r--r--drivers/net/ethernet/sfc/net_driver.h2
3 files changed, 14 insertions, 6 deletions
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index 9f6d7690bc0a..e61807e6d47b 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -2319,8 +2319,10 @@ static void efx_ef10_set_rss_flags(struct efx_nic *efx, u32 context)
flags |= RSS_MODE_HASH_PORTS << MC_CMD_RSS_CONTEXT_GET_FLAGS_OUT_UDP_IPV4_RSS_MODE_LBN;
flags |= RSS_MODE_HASH_PORTS << MC_CMD_RSS_CONTEXT_GET_FLAGS_OUT_UDP_IPV6_RSS_MODE_LBN;
MCDI_SET_DWORD(inbuf, RSS_CONTEXT_SET_FLAGS_IN_FLAGS, flags);
- efx_mcdi_rpc(efx, MC_CMD_RSS_CONTEXT_SET_FLAGS, inbuf, sizeof(inbuf),
- NULL, 0, NULL);
+ if (!efx_mcdi_rpc(efx, MC_CMD_RSS_CONTEXT_SET_FLAGS, inbuf, sizeof(inbuf),
+ NULL, 0, NULL))
+ /* Succeeded, so UDP 4-tuple is now enabled */
+ efx->rx_hash_udp_4tuple = true;
}
static int efx_ef10_alloc_rss_context(struct efx_nic *efx, u32 *context,
diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c
index 445ccdb6bc67..bf126f935ade 100644
--- a/drivers/net/ethernet/sfc/ethtool.c
+++ b/drivers/net/ethernet/sfc/ethtool.c
@@ -968,20 +968,24 @@ efx_ethtool_get_rxnfc(struct net_device *net_dev,
info->data = 0;
switch (info->flow_type) {
+ case UDP_V4_FLOW:
+ if (efx->rx_hash_udp_4tuple)
+ /* fall through */
case TCP_V4_FLOW:
- info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
/* fall through */
- case UDP_V4_FLOW:
case SCTP_V4_FLOW:
case AH_ESP_V4_FLOW:
case IPV4_FLOW:
info->data |= RXH_IP_SRC | RXH_IP_DST;
min_revision = EFX_REV_FALCON_B0;
break;
+ case UDP_V6_FLOW:
+ if (efx->rx_hash_udp_4tuple)
+ /* fall through */
case TCP_V6_FLOW:
- info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
/* fall through */
- case UDP_V6_FLOW:
case SCTP_V6_FLOW:
case AH_ESP_V6_FLOW:
case IPV6_FLOW:
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
index 99d8c82124bb..fec51c4b2607 100644
--- a/drivers/net/ethernet/sfc/net_driver.h
+++ b/drivers/net/ethernet/sfc/net_driver.h
@@ -853,6 +853,7 @@ struct vfdi_status;
* @rx_hash_key: Toeplitz hash key for RSS
* @rx_indir_table: Indirection table for RSS
* @rx_scatter: Scatter mode enabled for receives
+ * @rx_hash_udp_4tuple: UDP 4-tuple hashing enabled
* @int_error_count: Number of internal errors seen recently
* @int_error_expire: Time at which error count will be expired
* @irq_soft_enabled: Are IRQs soft-enabled? If not, IRQ handler will
@@ -990,6 +991,7 @@ struct efx_nic {
u8 rx_hash_key[40];
u32 rx_indir_table[128];
bool rx_scatter;
+ bool rx_hash_udp_4tuple;
unsigned int_error_count;
unsigned long int_error_expire;