From e21ba414eed8a233eadb79bb6b158ac7ceb35025 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Thu, 23 Dec 2010 07:43:03 +0000 Subject: cnic: Add kcq2 support on 57712 The kcq2 (2nd kernel work queue) is used by FCoE on 57712 devices. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/cnic.c | 76 +++++++++++++++++++++++++++++++++++++++--------------- drivers/net/cnic.h | 1 + 2 files changed, 56 insertions(+), 21 deletions(-) diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c index 36c1578..6ce7398 100644 --- a/drivers/net/cnic.c +++ b/drivers/net/cnic.c @@ -843,6 +843,7 @@ static void cnic_free_resc(struct cnic_dev *dev) cnic_free_dma(dev, &cp->conn_buf_info); cnic_free_dma(dev, &cp->kwq_info); cnic_free_dma(dev, &cp->kwq_16_data_info); + cnic_free_dma(dev, &cp->kcq2.dma); cnic_free_dma(dev, &cp->kcq1.dma); kfree(cp->iscsi_tbl); cp->iscsi_tbl = NULL; @@ -1183,6 +1184,12 @@ static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev) if (ret) goto error; + if (BNX2X_CHIP_IS_E2(cp->chip_id)) { + ret = cnic_alloc_kcq(dev, &cp->kcq2); + if (ret) + goto error; + } + pages = PAGE_ALIGN(BNX2X_ISCSI_NUM_CONNECTIONS * BNX2X_ISCSI_CONN_BUF_SIZE) / PAGE_SIZE; ret = cnic_alloc_dma(dev, &cp->conn_buf_info, pages, 1); @@ -2493,12 +2500,19 @@ static void cnic_service_bnx2x_bh(unsigned long data) status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq1); CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx + MAX_KCQ_IDX); - if (BNX2X_CHIP_IS_E2(cp->chip_id)) + + if (BNX2X_CHIP_IS_E2(cp->chip_id)) { + status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq2); + + CNIC_WR16(dev, cp->kcq2.io_addr, cp->kcq2.sw_prod_idx + + MAX_KCQ_IDX); + cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF, status_idx, IGU_INT_ENABLE, 1); - else + } else { cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, USTORM_ID, status_idx, IGU_INT_ENABLE, 1); + } } static int cnic_service_bnx2x(void *data, void *status_blk) @@ -4381,6 +4395,44 @@ static void cnic_get_bnx2x_iscsi_info(struct cnic_dev *dev) dev->max_iscsi_conn = 0; } +static void cnic_init_bnx2x_kcq(struct cnic_dev *dev) +{ + struct cnic_local *cp = dev->cnic_priv; + u32 pfid = cp->pfid; + + cp->kcq1.io_addr = BAR_CSTRORM_INTMEM + + CSTORM_ISCSI_EQ_PROD_OFFSET(pfid, 0); + cp->kcq1.sw_prod_idx = 0; + + if (BNX2X_CHIP_IS_E2(cp->chip_id)) { + struct host_hc_status_block_e2 *sb = cp->status_blk.gen; + + cp->kcq1.hw_prod_idx_ptr = + &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS]; + cp->kcq1.status_idx_ptr = + &sb->sb.running_index[SM_RX_ID]; + } else { + struct host_hc_status_block_e1x *sb = cp->status_blk.gen; + + cp->kcq1.hw_prod_idx_ptr = + &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS]; + cp->kcq1.status_idx_ptr = + &sb->sb.running_index[SM_RX_ID]; + } + + if (BNX2X_CHIP_IS_E2(cp->chip_id)) { + struct host_hc_status_block_e2 *sb = cp->status_blk.gen; + + cp->kcq2.io_addr = BAR_USTRORM_INTMEM + + USTORM_FCOE_EQ_PROD_OFFSET(pfid); + cp->kcq2.sw_prod_idx = 0; + cp->kcq2.hw_prod_idx_ptr = + &sb->sb.index_values[HC_INDEX_FCOE_EQ_CONS]; + cp->kcq2.status_idx_ptr = + &sb->sb.running_index[SM_RX_ID]; + } +} + static int cnic_start_bnx2x_hw(struct cnic_dev *dev) { struct cnic_local *cp = dev->cnic_priv; @@ -4413,25 +4465,7 @@ static int cnic_start_bnx2x_hw(struct cnic_dev *dev) cp->bnx2x_igu_sb_id = ethdev->irq_arr[0].status_blk_num2; - cp->kcq1.io_addr = BAR_CSTRORM_INTMEM + - CSTORM_ISCSI_EQ_PROD_OFFSET(pfid, 0); - cp->kcq1.sw_prod_idx = 0; - - if (BNX2X_CHIP_IS_E2(cp->chip_id)) { - struct host_hc_status_block_e2 *sb = cp->status_blk.gen; - - cp->kcq1.hw_prod_idx_ptr = - &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS]; - cp->kcq1.status_idx_ptr = - &sb->sb.running_index[SM_RX_ID]; - } else { - struct host_hc_status_block_e1x *sb = cp->status_blk.gen; - - cp->kcq1.hw_prod_idx_ptr = - &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS]; - cp->kcq1.status_idx_ptr = - &sb->sb.running_index[SM_RX_ID]; - } + cnic_init_bnx2x_kcq(dev); cnic_get_bnx2x_iscsi_info(dev); diff --git a/drivers/net/cnic.h b/drivers/net/cnic.h index fb3b753..e46b4c1 100644 --- a/drivers/net/cnic.h +++ b/drivers/net/cnic.h @@ -258,6 +258,7 @@ struct cnic_local { u16 kwq_con_idx; struct kcq_info kcq1; + struct kcq_info kcq2; union { void *gen; -- cgit v1.1