diff options
Diffstat (limited to 'drivers/net/ethernet/sfc/ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/ethtool.c | 77 |
1 files changed, 49 insertions, 28 deletions
diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c index bb1c80d48d12..3143588ffd77 100644 --- a/drivers/net/ethernet/sfc/ethtool.c +++ b/drivers/net/ethernet/sfc/ethtool.c @@ -979,7 +979,7 @@ efx_ethtool_get_rxnfc(struct net_device *net_dev, { struct efx_nic *efx = netdev_priv(net_dev); u32 rss_context = 0; - s32 rc; + s32 rc = 0; switch (info->cmd) { case ETHTOOL_GRXRINGS: @@ -989,15 +989,17 @@ efx_ethtool_get_rxnfc(struct net_device *net_dev, case ETHTOOL_GRXFH: { struct efx_rss_context *ctx = &efx->rss_context; + mutex_lock(&efx->rss_lock); if (info->flow_type & FLOW_RSS && info->rss_context) { - ctx = efx_find_rss_context_entry(info->rss_context, - &efx->rss_context.list); - if (!ctx) - return -ENOENT; + ctx = efx_find_rss_context_entry(efx, info->rss_context); + if (!ctx) { + rc = -ENOENT; + goto out_unlock; + } } info->data = 0; if (!efx_rss_active(ctx)) /* No RSS */ - return 0; + goto out_unlock; switch (info->flow_type & ~FLOW_RSS) { case UDP_V4_FLOW: if (ctx->rx_hash_udp_4tuple) @@ -1024,7 +1026,9 @@ efx_ethtool_get_rxnfc(struct net_device *net_dev, default: break; } - return 0; +out_unlock: + mutex_unlock(&efx->rss_lock); + return rc; } case ETHTOOL_GRXCLSRLCNT: @@ -1084,6 +1088,7 @@ static int efx_ethtool_set_class_rule(struct efx_nic *efx, struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; + u32 flow_type = rule->flow_type & ~(FLOW_EXT | FLOW_RSS); struct ethhdr *mac_entry = &rule->h_u.ether_spec; struct ethhdr *mac_mask = &rule->m_u.ether_spec; enum efx_filter_flags flags = 0; @@ -1117,14 +1122,14 @@ static int efx_ethtool_set_class_rule(struct efx_nic *efx, if (rule->flow_type & FLOW_RSS) spec.rss_context = rss_context; - switch (rule->flow_type & ~(FLOW_EXT | FLOW_RSS)) { + switch (flow_type) { case TCP_V4_FLOW: case UDP_V4_FLOW: spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_IP_PROTO); spec.ether_type = htons(ETH_P_IP); - spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V4_FLOW ? - IPPROTO_TCP : IPPROTO_UDP); + spec.ip_proto = flow_type == TCP_V4_FLOW ? IPPROTO_TCP + : IPPROTO_UDP; if (ip_mask->ip4dst) { if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK) return -EINVAL; @@ -1158,8 +1163,8 @@ static int efx_ethtool_set_class_rule(struct efx_nic *efx, spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_IP_PROTO); spec.ether_type = htons(ETH_P_IPV6); - spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V6_FLOW ? - IPPROTO_TCP : IPPROTO_UDP); + spec.ip_proto = flow_type == TCP_V6_FLOW ? IPPROTO_TCP + : IPPROTO_UDP; if (!ip6_mask_is_empty(ip6_mask->ip6dst)) { if (!ip6_mask_is_full(ip6_mask->ip6dst)) return -EINVAL; @@ -1366,16 +1371,20 @@ static int efx_ethtool_get_rxfh_context(struct net_device *net_dev, u32 *indir, { struct efx_nic *efx = netdev_priv(net_dev); struct efx_rss_context *ctx; - int rc; + int rc = 0; if (!efx->type->rx_pull_rss_context_config) return -EOPNOTSUPP; - ctx = efx_find_rss_context_entry(rss_context, &efx->rss_context.list); - if (!ctx) - return -ENOENT; + + mutex_lock(&efx->rss_lock); + ctx = efx_find_rss_context_entry(efx, rss_context); + if (!ctx) { + rc = -ENOENT; + goto out_unlock; + } rc = efx->type->rx_pull_rss_context_config(efx, ctx); if (rc) - return rc; + goto out_unlock; if (hfunc) *hfunc = ETH_RSS_HASH_TOP; @@ -1383,7 +1392,9 @@ static int efx_ethtool_get_rxfh_context(struct net_device *net_dev, u32 *indir, memcpy(indir, ctx->rx_indir_table, sizeof(ctx->rx_indir_table)); if (key) memcpy(key, ctx->rx_hash_key, efx->type->rx_hash_key_size); - return 0; +out_unlock: + mutex_unlock(&efx->rss_lock); + return rc; } static int efx_ethtool_set_rxfh_context(struct net_device *net_dev, @@ -1401,23 +1412,31 @@ static int efx_ethtool_set_rxfh_context(struct net_device *net_dev, /* Hash function is Toeplitz, cannot be changed */ if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) return -EOPNOTSUPP; + + mutex_lock(&efx->rss_lock); + if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) { - if (delete) + if (delete) { /* alloc + delete == Nothing to do */ - return -EINVAL; - ctx = efx_alloc_rss_context_entry(&efx->rss_context.list); - if (!ctx) - return -ENOMEM; + rc = -EINVAL; + goto out_unlock; + } + ctx = efx_alloc_rss_context_entry(efx); + if (!ctx) { + rc = -ENOMEM; + goto out_unlock; + } ctx->context_id = EFX_EF10_RSS_CONTEXT_INVALID; /* Initialise indir table and key to defaults */ efx_set_default_rx_indir_table(efx, ctx); netdev_rss_key_fill(ctx->rx_hash_key, sizeof(ctx->rx_hash_key)); allocated = true; } else { - ctx = efx_find_rss_context_entry(*rss_context, - &efx->rss_context.list); - if (!ctx) - return -ENOENT; + ctx = efx_find_rss_context_entry(efx, *rss_context); + if (!ctx) { + rc = -ENOENT; + goto out_unlock; + } } if (delete) { @@ -1425,7 +1444,7 @@ static int efx_ethtool_set_rxfh_context(struct net_device *net_dev, rc = efx->type->rx_push_rss_context_config(efx, ctx, NULL, NULL); if (!rc) efx_free_rss_context_entry(ctx); - return rc; + goto out_unlock; } if (!key) @@ -1438,6 +1457,8 @@ static int efx_ethtool_set_rxfh_context(struct net_device *net_dev, efx_free_rss_context_entry(ctx); else *rss_context = ctx->user_id; +out_unlock: + mutex_unlock(&efx->rss_lock); return rc; } |