be2net: Remove ERR compl workaround for Lancer

Workaround added for Lancer in handling RX ERR completion received
when no RX buffers are posted is not needed.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Subramanian Seetharaman <subbu.seetharaman@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/benet/be.h b/drivers/net/benet/be.h
index ed709a5..4ac0d72 100644 (file)
--- a/drivers/net/benet/be.h
+++ b/drivers/net/benet/be.h
@@ -220,9 +220,7 @@ struct be_rx_obj {
        struct be_rx_stats stats;
        u8 rss_id;
        bool rx_post_starved;   /* Zero rx frags have been posted to BE */
-       u16 last_frag_index;
-       u16 rsvd;
-       u32 cache_line_barrier[15];
+       u32 cache_line_barrier[16];
 };
 
 struct be_drv_stats {

diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c
index ef66dc6..bf34434 100644 (file)
--- a/drivers/net/benet/be_main.c
+++ b/drivers/net/benet/be_main.c
@@ -909,17 +909,11 @@ static void be_rx_compl_discard(struct be_adapter *adapter,
        rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
        num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
 
-        /* Skip out-of-buffer compl(lancer) or flush compl(BE) */
-       if (likely(rxq_idx != rxo->last_frag_index && num_rcvd != 0)) {
-
-               rxo->last_frag_index = rxq_idx;
-
-               for (i = 0; i < num_rcvd; i++) {
-                       page_info = get_rx_page_info(adapter, rxo, rxq_idx);
-                       put_page(page_info->page);
-                       memset(page_info, 0, sizeof(*page_info));
-                       index_inc(&rxq_idx, rxq->len);
-               }
+       for (i = 0; i < num_rcvd; i++) {
+               page_info = get_rx_page_info(adapter, rxo, rxq_idx);
+               put_page(page_info->page);
+               memset(page_info, 0, sizeof(*page_info));
+               index_inc(&rxq_idx, rxq->len);
        }
 }
 
@@ -1579,9 +1573,6 @@ static int be_rx_queues_create(struct be_adapter *adapter)
        adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
        for_all_rx_queues(adapter, rxo, i) {
                rxo->adapter = adapter;
-               /* Init last_frag_index so that the frag index in the first
-                * completion will never match */
-               rxo->last_frag_index = 0xffff;
                rxo->rx_eq.max_eqd = BE_MAX_EQD;
                rxo->rx_eq.enable_aic = true;
 
@@ -1722,7 +1713,7 @@ static int be_poll_rx(struct napi_struct *napi, int budget)
        struct be_queue_info *rx_cq = &rxo->cq;
        struct be_eth_rx_compl *rxcp;
        u32 work_done;
-       u16 frag_index, num_rcvd;
+       u16 num_rcvd;
        u8 err;
 
        rxo->stats.rx_polls++;
@@ -1732,16 +1723,10 @@ static int be_poll_rx(struct napi_struct *napi, int budget)
                        break;
 
                err = AMAP_GET_BITS(struct amap_eth_rx_compl, err, rxcp);
-               frag_index = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx,
-                                                               rxcp);
                num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags,
                                                                rxcp);
-
-               /* Skip out-of-buffer compl(lancer) or flush compl(BE) */
-               if (likely(frag_index != rxo->last_frag_index &&
-                               num_rcvd != 0)) {
-                       rxo->last_frag_index = frag_index;
-
+               /* Ignore flush completions */
+               if (num_rcvd) {
                        if (do_gro(rxo, rxcp, err))
                                be_rx_compl_process_gro(adapter, rxo, rxcp);
                        else