From 34e8c406fda5b5a9d2e126a92bab84cd28e3b5fa Mon Sep 17 00:00:00 2001 From: Himanshu Madhani Date: Mon, 4 Nov 2013 13:31:31 -0500 Subject: qlcnic: refactor Tx/SDS ring calculation and validation in driver. o Current driver has duplicate code for validating user input for changing Tx/SDS rings using set_channel ethtool interface. This patch removes duplicate code and refactored Tx/SDS ring validation for 82xx/83xx/84xx series adapter. o Refactored code now calculates maximum Tx/Rx ring driver can support based on Default, NPAR and SRIOV PF/VF mode of driver. Signed-off-by: Himanshu Madhani Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c | 46 ++++++++++++++------------ 1 file changed, 25 insertions(+), 21 deletions(-) (limited to 'drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c') diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c index df31be7a7aba..1c07ec250f23 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c @@ -787,6 +787,9 @@ static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter, struct net_device *netdev = adapter->netdev; struct qlcnic_skb_frag *frag; + if (!spin_trylock(&adapter->tx_clean_lock)) + return 1; + sw_consumer = tx_ring->sw_consumer; hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); @@ -840,6 +843,7 @@ static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter, */ hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); done = (sw_consumer == hw_consumer); + spin_unlock(&adapter->tx_clean_lock); return done; } @@ -1459,18 +1463,18 @@ int qlcnic_82xx_napi_add(struct qlcnic_adapter *adapter, struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; struct qlcnic_host_tx_ring *tx_ring; - if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) + if (qlcnic_alloc_sds_rings(recv_ctx, adapter->drv_sds_rings)) return -ENOMEM; - for (ring = 0; ring < adapter->max_sds_rings; ring++) { + for (ring = 0; ring < adapter->drv_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; if (qlcnic_check_multi_tx(adapter) && !adapter->ahw->diag_test && - (adapter->max_drv_tx_rings > 1)) { + (adapter->drv_tx_rings > QLCNIC_SINGLE_RING)) { netif_napi_add(netdev, &sds_ring->napi, qlcnic_rx_poll, NAPI_POLL_WEIGHT); } else { - if (ring == (adapter->max_sds_rings - 1)) + if (ring == (adapter->drv_sds_rings - 1)) netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll, NAPI_POLL_WEIGHT); @@ -1487,7 +1491,7 @@ int qlcnic_82xx_napi_add(struct qlcnic_adapter *adapter, } if (qlcnic_check_multi_tx(adapter) && !adapter->ahw->diag_test) { - for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) { + for (ring = 0; ring < adapter->drv_tx_rings; ring++) { tx_ring = &adapter->tx_ring[ring]; netif_napi_add(netdev, &tx_ring->napi, qlcnic_tx_poll, NAPI_POLL_WEIGHT); @@ -1504,7 +1508,7 @@ void qlcnic_82xx_napi_del(struct qlcnic_adapter *adapter) struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; struct qlcnic_host_tx_ring *tx_ring; - for (ring = 0; ring < adapter->max_sds_rings; ring++) { + for (ring = 0; ring < adapter->drv_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; netif_napi_del(&sds_ring->napi); } @@ -1512,7 +1516,7 @@ void qlcnic_82xx_napi_del(struct qlcnic_adapter *adapter) qlcnic_free_sds_rings(adapter->recv_ctx); if (qlcnic_check_multi_tx(adapter) && !adapter->ahw->diag_test) { - for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) { + for (ring = 0; ring < adapter->drv_tx_rings; ring++) { tx_ring = &adapter->tx_ring[ring]; netif_napi_del(&tx_ring->napi); } @@ -1531,7 +1535,7 @@ void qlcnic_82xx_napi_enable(struct qlcnic_adapter *adapter) if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) return; - for (ring = 0; ring < adapter->max_sds_rings; ring++) { + for (ring = 0; ring < adapter->drv_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; napi_enable(&sds_ring->napi); qlcnic_enable_int(sds_ring); @@ -1540,8 +1544,8 @@ void qlcnic_82xx_napi_enable(struct qlcnic_adapter *adapter) if (qlcnic_check_multi_tx(adapter) && (adapter->flags & QLCNIC_MSIX_ENABLED) && !adapter->ahw->diag_test && - (adapter->max_drv_tx_rings > 1)) { - for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) { + (adapter->drv_tx_rings > QLCNIC_SINGLE_RING)) { + for (ring = 0; ring < adapter->drv_tx_rings; ring++) { tx_ring = &adapter->tx_ring[ring]; napi_enable(&tx_ring->napi); qlcnic_enable_tx_intr(adapter, tx_ring); @@ -1559,7 +1563,7 @@ void qlcnic_82xx_napi_disable(struct qlcnic_adapter *adapter) if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) return; - for (ring = 0; ring < adapter->max_sds_rings; ring++) { + for (ring = 0; ring < adapter->drv_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; qlcnic_disable_int(sds_ring); napi_synchronize(&sds_ring->napi); @@ -1569,7 +1573,7 @@ void qlcnic_82xx_napi_disable(struct qlcnic_adapter *adapter) if ((adapter->flags & QLCNIC_MSIX_ENABLED) && !adapter->ahw->diag_test && qlcnic_check_multi_tx(adapter)) { - for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) { + for (ring = 0; ring < adapter->drv_tx_rings; ring++) { tx_ring = &adapter->tx_ring[ring]; qlcnic_disable_tx_int(adapter, tx_ring); napi_synchronize(&tx_ring->napi); @@ -1907,7 +1911,7 @@ void qlcnic_83xx_napi_enable(struct qlcnic_adapter *adapter) if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) return; - for (ring = 0; ring < adapter->max_sds_rings; ring++) { + for (ring = 0; ring < adapter->drv_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; napi_enable(&sds_ring->napi); if (adapter->flags & QLCNIC_MSIX_ENABLED) @@ -1916,7 +1920,7 @@ void qlcnic_83xx_napi_enable(struct qlcnic_adapter *adapter) if ((adapter->flags & QLCNIC_MSIX_ENABLED) && !(adapter->flags & QLCNIC_TX_INTR_SHARED)) { - for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) { + for (ring = 0; ring < adapter->drv_tx_rings; ring++) { tx_ring = &adapter->tx_ring[ring]; napi_enable(&tx_ring->napi); qlcnic_83xx_enable_tx_intr(adapter, tx_ring); @@ -1934,7 +1938,7 @@ void qlcnic_83xx_napi_disable(struct qlcnic_adapter *adapter) if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) return; - for (ring = 0; ring < adapter->max_sds_rings; ring++) { + for (ring = 0; ring < adapter->drv_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; if (adapter->flags & QLCNIC_MSIX_ENABLED) qlcnic_83xx_disable_intr(adapter, sds_ring); @@ -1944,7 +1948,7 @@ void qlcnic_83xx_napi_disable(struct qlcnic_adapter *adapter) if ((adapter->flags & QLCNIC_MSIX_ENABLED) && !(adapter->flags & QLCNIC_TX_INTR_SHARED)) { - for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) { + for (ring = 0; ring < adapter->drv_tx_rings; ring++) { tx_ring = &adapter->tx_ring[ring]; qlcnic_83xx_disable_tx_intr(adapter, tx_ring); napi_synchronize(&tx_ring->napi); @@ -1961,10 +1965,10 @@ int qlcnic_83xx_napi_add(struct qlcnic_adapter *adapter, struct qlcnic_host_tx_ring *tx_ring; struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; - if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) + if (qlcnic_alloc_sds_rings(recv_ctx, adapter->drv_sds_rings)) return -ENOMEM; - for (ring = 0; ring < adapter->max_sds_rings; ring++) { + for (ring = 0; ring < adapter->drv_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; if (adapter->flags & QLCNIC_MSIX_ENABLED) { if (!(adapter->flags & QLCNIC_TX_INTR_SHARED)) @@ -1990,7 +1994,7 @@ int qlcnic_83xx_napi_add(struct qlcnic_adapter *adapter, if ((adapter->flags & QLCNIC_MSIX_ENABLED) && !(adapter->flags & QLCNIC_TX_INTR_SHARED)) { - for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) { + for (ring = 0; ring < adapter->drv_tx_rings; ring++) { tx_ring = &adapter->tx_ring[ring]; netif_napi_add(netdev, &tx_ring->napi, qlcnic_83xx_msix_tx_poll, @@ -2008,7 +2012,7 @@ void qlcnic_83xx_napi_del(struct qlcnic_adapter *adapter) struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; struct qlcnic_host_tx_ring *tx_ring; - for (ring = 0; ring < adapter->max_sds_rings; ring++) { + for (ring = 0; ring < adapter->drv_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; netif_napi_del(&sds_ring->napi); } @@ -2017,7 +2021,7 @@ void qlcnic_83xx_napi_del(struct qlcnic_adapter *adapter) if ((adapter->flags & QLCNIC_MSIX_ENABLED) && !(adapter->flags & QLCNIC_TX_INTR_SHARED)) { - for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) { + for (ring = 0; ring < adapter->drv_tx_rings; ring++) { tx_ring = &adapter->tx_ring[ring]; netif_napi_del(&tx_ring->napi); } -- cgit v1.2.3