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Message-ID: <1293126184-13097-9-git-send-email-mchan@broadcom.com>
Date: Thu, 23 Dec 2010 09:43:03 -0800
From: "Michael Chan" <mchan@...adcom.com>
To: davem@...emloft.net
cc: netdev@...r.kernel.org
Subject: [PATCH net-next 8/9] cnic: Add kcq2 support on 57712
The kcq2 (2nd kernel work queue) is used by FCoE on 57712 devices.
Signed-off-by: Michael Chan <mchan@...adcom.com>
---
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;
--
1.6.4.GIT
--
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