forked from Minki/linux
ixgbevf: move ring specific stats into ring specific structure
This patch moves hot-path specific statistics into the ring structure. This allows us to drop the adapter structure in some functions and should help with performance. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
05d063aa86
commit
095e2617ce
drivers/net/ethernet/intel/ixgbevf
@ -411,15 +411,15 @@ static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
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tx_yields = 0, tx_cleaned = 0, tx_missed = 0;
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for (i = 0; i < adapter->num_rx_queues; i++) {
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rx_yields += adapter->rx_ring[i]->bp_yields;
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rx_cleaned += adapter->rx_ring[i]->bp_cleaned;
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rx_yields += adapter->rx_ring[i]->bp_yields;
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rx_yields += adapter->rx_ring[i]->stats.yields;
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rx_cleaned += adapter->rx_ring[i]->stats.cleaned;
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rx_yields += adapter->rx_ring[i]->stats.yields;
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}
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for (i = 0; i < adapter->num_tx_queues; i++) {
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tx_yields += adapter->tx_ring[i]->bp_yields;
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tx_cleaned += adapter->tx_ring[i]->bp_cleaned;
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tx_yields += adapter->tx_ring[i]->bp_yields;
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tx_yields += adapter->tx_ring[i]->stats.yields;
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tx_cleaned += adapter->tx_ring[i]->stats.cleaned;
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tx_yields += adapter->tx_ring[i]->stats.yields;
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}
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adapter->bp_rx_yields = rx_yields;
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@ -59,6 +59,29 @@ struct ixgbevf_rx_buffer {
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dma_addr_t dma;
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};
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struct ixgbevf_stats {
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u64 packets;
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u64 bytes;
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#ifdef BP_EXTENDED_STATS
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u64 yields;
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u64 misses;
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u64 cleaned;
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#endif
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};
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struct ixgbevf_tx_queue_stats {
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u64 restart_queue;
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u64 tx_busy;
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u64 tx_done_old;
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};
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struct ixgbevf_rx_queue_stats {
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u64 non_eop_descs;
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u64 alloc_rx_page_failed;
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u64 alloc_rx_buff_failed;
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u64 csum_err;
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};
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struct ixgbevf_ring {
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struct ixgbevf_ring *next;
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struct net_device *netdev;
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@ -70,22 +93,20 @@ struct ixgbevf_ring {
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unsigned int next_to_use;
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unsigned int next_to_clean;
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int queue_index; /* needed for multiqueue queue management */
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union {
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struct ixgbevf_tx_buffer *tx_buffer_info;
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struct ixgbevf_rx_buffer *rx_buffer_info;
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};
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u64 total_bytes;
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u64 total_packets;
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struct u64_stats_sync syncp;
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struct ixgbevf_stats stats;
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struct u64_stats_sync syncp;
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union {
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struct ixgbevf_tx_queue_stats tx_stats;
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struct ixgbevf_rx_queue_stats rx_stats;
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};
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u64 hw_csum_rx_error;
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u64 hw_csum_rx_good;
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#ifdef BP_EXTENDED_STATS
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u64 bp_yields;
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u64 bp_misses;
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u64 bp_cleaned;
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#endif
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u8 __iomem *tail;
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u16 reg_idx; /* holds the special value that gets the hardware register
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@ -93,6 +114,7 @@ struct ixgbevf_ring {
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* for DCB and RSS modes */
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u16 rx_buf_len;
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int queue_index; /* needed for multiqueue queue management */
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};
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/* How many Rx Buffers do we bundle into one write to the hardware ? */
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@ -186,7 +208,7 @@ static inline bool ixgbevf_qv_lock_napi(struct ixgbevf_q_vector *q_vector)
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q_vector->state |= IXGBEVF_QV_STATE_NAPI_YIELD;
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rc = false;
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#ifdef BP_EXTENDED_STATS
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q_vector->tx.ring->bp_yields++;
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q_vector->tx.ring->stats.yields++;
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#endif
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} else {
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/* we don't care if someone yielded */
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@ -221,7 +243,7 @@ static inline bool ixgbevf_qv_lock_poll(struct ixgbevf_q_vector *q_vector)
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q_vector->state |= IXGBEVF_QV_STATE_POLL_YIELD;
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rc = false;
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#ifdef BP_EXTENDED_STATS
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q_vector->rx.ring->bp_yields++;
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q_vector->rx.ring->stats.yields++;
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#endif
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} else {
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/* preserve yield marks */
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@ -268,8 +268,8 @@ static bool ixgbevf_clean_tx_irq(struct ixgbevf_q_vector *q_vector,
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}
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u64_stats_update_begin(&tx_ring->syncp);
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tx_ring->total_bytes += total_bytes;
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tx_ring->total_packets += total_packets;
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tx_ring->stats.bytes += total_bytes;
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tx_ring->stats.packets += total_packets;
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u64_stats_update_end(&tx_ring->syncp);
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q_vector->tx.total_bytes += total_bytes;
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q_vector->tx.total_packets += total_packets;
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@ -343,7 +343,7 @@ static inline void ixgbevf_rx_checksum(struct ixgbevf_ring *ring,
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/* if IP and error */
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if ((status_err & IXGBE_RXD_STAT_IPCS) &&
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(status_err & IXGBE_RXDADV_ERR_IPE)) {
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ring->hw_csum_rx_error++;
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ring->rx_stats.csum_err++;
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return;
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}
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@ -351,7 +351,7 @@ static inline void ixgbevf_rx_checksum(struct ixgbevf_ring *ring,
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return;
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if (status_err & IXGBE_RXDADV_ERR_TCPE) {
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ring->hw_csum_rx_error++;
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ring->rx_stats.csum_err++;
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return;
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}
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@ -362,10 +362,9 @@ static inline void ixgbevf_rx_checksum(struct ixgbevf_ring *ring,
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/**
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* ixgbevf_alloc_rx_buffers - Replace used receive buffers; packet split
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* @adapter: address of board private structure
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* @rx_ring: rx descriptor ring (for a specific queue) to setup buffers on
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**/
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static void ixgbevf_alloc_rx_buffers(struct ixgbevf_adapter *adapter,
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struct ixgbevf_ring *rx_ring,
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static void ixgbevf_alloc_rx_buffers(struct ixgbevf_ring *rx_ring,
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int cleaned_count)
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{
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union ixgbe_adv_rx_desc *rx_desc;
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@ -404,7 +403,7 @@ static void ixgbevf_alloc_rx_buffers(struct ixgbevf_adapter *adapter,
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}
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no_buffers:
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adapter->alloc_rx_buff_failed++;
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rx_ring->rx_stats.alloc_rx_buff_failed++;
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if (rx_ring->next_to_use != i)
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ixgbevf_release_rx_desc(rx_ring, i);
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}
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@ -421,7 +420,6 @@ static int ixgbevf_clean_rx_irq(struct ixgbevf_q_vector *q_vector,
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struct ixgbevf_ring *rx_ring,
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int budget)
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{
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struct ixgbevf_adapter *adapter = q_vector->adapter;
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union ixgbe_adv_rx_desc *rx_desc, *next_rxd;
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struct ixgbevf_rx_buffer *rx_buffer_info, *next_buffer;
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struct sk_buff *skb;
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@ -467,7 +465,7 @@ static int ixgbevf_clean_rx_irq(struct ixgbevf_q_vector *q_vector,
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if (!(staterr & IXGBE_RXD_STAT_EOP)) {
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skb->next = next_buffer->skb;
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IXGBE_CB(skb->next)->prev = skb;
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adapter->non_eop_descs++;
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rx_ring->rx_stats.non_eop_descs++;
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goto next_desc;
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}
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@ -499,7 +497,7 @@ static int ixgbevf_clean_rx_irq(struct ixgbevf_q_vector *q_vector,
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* source pruning.
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*/
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if ((skb->pkt_type & (PACKET_BROADCAST | PACKET_MULTICAST)) &&
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ether_addr_equal(adapter->netdev->dev_addr,
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ether_addr_equal(rx_ring->netdev->dev_addr,
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eth_hdr(skb)->h_source)) {
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dev_kfree_skb_irq(skb);
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goto next_desc;
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@ -512,8 +510,7 @@ next_desc:
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/* return some buffers to hardware, one at a time is too slow */
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if (cleaned_count >= IXGBEVF_RX_BUFFER_WRITE) {
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ixgbevf_alloc_rx_buffers(adapter, rx_ring,
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cleaned_count);
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ixgbevf_alloc_rx_buffers(rx_ring, cleaned_count);
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cleaned_count = 0;
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}
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@ -528,11 +525,11 @@ next_desc:
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cleaned_count = ixgbevf_desc_unused(rx_ring);
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if (cleaned_count)
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ixgbevf_alloc_rx_buffers(adapter, rx_ring, cleaned_count);
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ixgbevf_alloc_rx_buffers(rx_ring, cleaned_count);
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u64_stats_update_begin(&rx_ring->syncp);
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rx_ring->total_packets += total_rx_packets;
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rx_ring->total_bytes += total_rx_bytes;
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rx_ring->stats.packets += total_rx_packets;
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rx_ring->stats.bytes += total_rx_bytes;
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u64_stats_update_end(&rx_ring->syncp);
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q_vector->rx.total_packets += total_rx_packets;
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q_vector->rx.total_bytes += total_rx_bytes;
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@ -637,9 +634,9 @@ static int ixgbevf_busy_poll_recv(struct napi_struct *napi)
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found = ixgbevf_clean_rx_irq(q_vector, ring, 4);
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#ifdef BP_EXTENDED_STATS
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if (found)
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ring->bp_cleaned += found;
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ring->stats.cleaned += found;
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else
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ring->bp_misses++;
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ring->stats.misses++;
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#endif
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if (found)
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break;
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@ -1313,7 +1310,7 @@ static void ixgbevf_configure_rx_ring(struct ixgbevf_adapter *adapter,
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IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(reg_idx), rxdctl);
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ixgbevf_rx_desc_queue_enable(adapter, ring);
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ixgbevf_alloc_rx_buffers(adapter, ring, ixgbevf_desc_unused(ring));
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ixgbevf_alloc_rx_buffers(ring, ixgbevf_desc_unused(ring));
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}
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/**
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@ -3048,8 +3045,6 @@ static void ixgbevf_tx_queue(struct ixgbevf_ring *tx_ring, int tx_flags,
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static int __ixgbevf_maybe_stop_tx(struct ixgbevf_ring *tx_ring, int size)
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{
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struct ixgbevf_adapter *adapter = netdev_priv(tx_ring->netdev);
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netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index);
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/* Herbert's original patch had:
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* smp_mb__after_netif_stop_queue();
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@ -3063,7 +3058,8 @@ static int __ixgbevf_maybe_stop_tx(struct ixgbevf_ring *tx_ring, int size)
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/* A reprieve! - use start_queue because it doesn't call schedule */
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netif_start_subqueue(tx_ring->netdev, tx_ring->queue_index);
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++adapter->restart_queue;
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++tx_ring->tx_stats.restart_queue;
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return 0;
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}
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@ -3108,7 +3104,7 @@ static int ixgbevf_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
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count += skb_shinfo(skb)->nr_frags;
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#endif
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if (ixgbevf_maybe_stop_tx(tx_ring, count + 3)) {
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adapter->tx_busy++;
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tx_ring->tx_stats.tx_busy++;
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return NETDEV_TX_BUSY;
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}
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@ -3308,8 +3304,8 @@ static struct rtnl_link_stats64 *ixgbevf_get_stats(struct net_device *netdev,
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ring = adapter->rx_ring[i];
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do {
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start = u64_stats_fetch_begin_bh(&ring->syncp);
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bytes = ring->total_bytes;
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packets = ring->total_packets;
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bytes = ring->stats.bytes;
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packets = ring->stats.packets;
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} while (u64_stats_fetch_retry_bh(&ring->syncp, start));
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stats->rx_bytes += bytes;
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stats->rx_packets += packets;
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@ -3319,8 +3315,8 @@ static struct rtnl_link_stats64 *ixgbevf_get_stats(struct net_device *netdev,
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ring = adapter->tx_ring[i];
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do {
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start = u64_stats_fetch_begin_bh(&ring->syncp);
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bytes = ring->total_bytes;
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packets = ring->total_packets;
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bytes = ring->stats.bytes;
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packets = ring->stats.packets;
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} while (u64_stats_fetch_retry_bh(&ring->syncp, start));
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stats->tx_bytes += bytes;
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stats->tx_packets += packets;
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