redonkable/alistair23-linux
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cnic: Add kcq2 support on 57712

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The kcq2 (2nd kernel work queue) is used by FCoE on 57712 devices.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2010-12-23 07:43:03 +00:00 committed by David S. Miller
parent 42ecbb8426
commit e21ba414ee
2 changed files with 56 additions and 21 deletions
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76
drivers/net/cnic.c
View file

@ -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);

1
drivers/net/cnic.h
View file

@ -258,6 +258,7 @@ struct cnic_local {
u16 kwq_con_idx;
struct kcq_info kcq1;
struct kcq_info kcq2;
union {
void *gen;