diff options
| -rw-r--r-- | net/ethtool/common.c | 42 |
1 files changed, 30 insertions, 12 deletions
diff --git a/net/ethtool/common.c b/net/ethtool/common.c index 0d62363dbd9d..05ce4f8080b3 100644 --- a/net/ethtool/common.c +++ b/net/ethtool/common.c @@ -538,6 +538,20 @@ static int ethtool_get_rxnfc_rule_count(struct net_device *dev) return info.rule_cnt; } +/* Max offset for one RSS context */ +static u32 ethtool_get_rss_ctx_max_channel(struct ethtool_rxfh_context *ctx) +{ + u32 max_ring = 0; + u32 i, *tbl; + + if (WARN_ON_ONCE(!ctx)) + return 0; + tbl = ethtool_rxfh_context_indir(ctx); + for (i = 0; i < ctx->indir_size; i++) + max_ring = max(max_ring, tbl[i]); + return max_ring; +} + static int ethtool_get_max_rxnfc_channel(struct net_device *dev, u64 *max) { const struct ethtool_ops *ops = dev->ethtool_ops; @@ -574,10 +588,18 @@ static int ethtool_get_max_rxnfc_channel(struct net_device *dev, u64 *max) if (rule_info.fs.ring_cookie != RX_CLS_FLOW_DISC && rule_info.fs.ring_cookie != RX_CLS_FLOW_WAKE && - !(rule_info.flow_type & FLOW_RSS) && - !ethtool_get_flow_spec_ring_vf(rule_info.fs.ring_cookie)) - max_ring = - max_t(u64, max_ring, rule_info.fs.ring_cookie); + !ethtool_get_flow_spec_ring_vf(rule_info.fs.ring_cookie)) { + u64 ring = rule_info.fs.ring_cookie; + + if (rule_info.flow_type & FLOW_RSS) { + struct ethtool_rxfh_context *ctx; + + ctx = xa_load(&dev->ethtool->rss_ctx, + rule_info.rss_context); + ring += ethtool_get_rss_ctx_max_channel(ctx); + } + max_ring = max_t(u64, max_ring, ring); + } } kvfree(info); @@ -589,6 +611,7 @@ err_free_info: return err; } +/* Max offset across all of a device's RSS contexts */ static u32 ethtool_get_max_rss_ctx_channel(struct net_device *dev) { struct ethtool_rxfh_context *ctx; @@ -596,13 +619,8 @@ static u32 ethtool_get_max_rss_ctx_channel(struct net_device *dev) u32 max_ring = 0; mutex_lock(&dev->ethtool->rss_lock); - xa_for_each(&dev->ethtool->rss_ctx, context, ctx) { - u32 i, *tbl; - - tbl = ethtool_rxfh_context_indir(ctx); - for (i = 0; i < ctx->indir_size; i++) - max_ring = max(max_ring, tbl[i]); - } + xa_for_each(&dev->ethtool->rss_ctx, context, ctx) + max_ring = max(max_ring, ethtool_get_rss_ctx_max_channel(ctx)); mutex_unlock(&dev->ethtool->rss_lock); return max_ring; @@ -611,7 +629,7 @@ static u32 ethtool_get_max_rss_ctx_channel(struct net_device *dev) static u32 ethtool_get_max_rxfh_channel(struct net_device *dev) { struct ethtool_rxfh_param rxfh = {}; - u32 dev_size, current_max; + u32 dev_size, current_max = 0; int ret; /* While we do track whether RSS context has an indirection |