From 32bcfb0a50b157902280898673b72b703cb20535 Mon Sep 17 00:00:00 2001 From: Ivan Malov Date: Thu, 15 Dec 2016 12:51:22 +0000 Subject: [PATCH] net/sfc: update RSS redirection table Signed-off-by: Ivan Malov Signed-off-by: Andrew Rybchenko Reviewed-by: Andrew Lee Reviewed-by: Robert Stonehouse --- doc/guides/nics/features/sfc_efx.ini | 1 + drivers/net/sfc/sfc_ethdev.c | 60 ++++++++++++++++++++++++++++ 2 files changed, 61 insertions(+) diff --git a/doc/guides/nics/features/sfc_efx.ini b/doc/guides/nics/features/sfc_efx.ini index 4f6f11734b..07c58d5959 100644 --- a/doc/guides/nics/features/sfc_efx.ini +++ b/doc/guides/nics/features/sfc_efx.ini @@ -16,6 +16,7 @@ Allmulticast mode = Y Multicast MAC filter = Y RSS hash = Y RSS key update = Y +RSS reta update = Y Flow control = Y VLAN offload = P L3 checksum offload = Y diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c index 1d5696fbc2..93fff421e6 100644 --- a/drivers/net/sfc/sfc_ethdev.c +++ b/drivers/net/sfc/sfc_ethdev.c @@ -1116,6 +1116,65 @@ sfc_dev_rss_reta_query(struct rte_eth_dev *dev, return 0; } + +static int +sfc_dev_rss_reta_update(struct rte_eth_dev *dev, + struct rte_eth_rss_reta_entry64 *reta_conf, + uint16_t reta_size) +{ + struct sfc_adapter *sa = dev->data->dev_private; + unsigned int *rss_tbl_new; + uint16_t entry; + int rc; + + + if ((sa->rss_channels == 1) || + (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)) { + sfc_err(sa, "RSS is not available"); + return -ENOTSUP; + } + + if (reta_size != EFX_RSS_TBL_SIZE) { + sfc_err(sa, "RETA size is wrong (should be %u)", + EFX_RSS_TBL_SIZE); + return -EINVAL; + } + + rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0); + if (rss_tbl_new == NULL) + return -ENOMEM; + + sfc_adapter_lock(sa); + + rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl)); + + for (entry = 0; entry < reta_size; entry++) { + int grp_idx = entry % RTE_RETA_GROUP_SIZE; + struct rte_eth_rss_reta_entry64 *grp; + + grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE]; + + if (grp->mask & (1ull << grp_idx)) { + if (grp->reta[grp_idx] >= sa->rss_channels) { + rc = EINVAL; + goto bad_reta_entry; + } + rss_tbl_new[entry] = grp->reta[grp_idx]; + } + } + + rc = efx_rx_scale_tbl_set(sa->nic, rss_tbl_new, EFX_RSS_TBL_SIZE); + if (rc == 0) + rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl)); + +bad_reta_entry: + sfc_adapter_unlock(sa); + + rte_free(rss_tbl_new); + + SFC_ASSERT(rc >= 0); + return -rc; +} #endif static const struct eth_dev_ops sfc_eth_dev_ops = { @@ -1150,6 +1209,7 @@ static const struct eth_dev_ops sfc_eth_dev_ops = { .flow_ctrl_set = sfc_flow_ctrl_set, .mac_addr_set = sfc_mac_addr_set, #if EFSYS_OPT_RX_SCALE + .reta_update = sfc_dev_rss_reta_update, .reta_query = sfc_dev_rss_reta_query, .rss_hash_update = sfc_dev_rss_hash_update, .rss_hash_conf_get = sfc_dev_rss_hash_conf_get, -- 2.20.1