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cnic: Allocate kcq resource only on devices that support FCoE. 

To save memory and to exit IRQ loop quicker on devices that don't support
FCoE.

Reviewed-by: Eddie Wai <eddie.wai@broadcom.com>
Reviewed-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2012-09-08 06:01:04 +00:00 committed by David S. Miller
parent 8cc0e028ed
commit 51a8f54d13
2 changed files with 7 additions and 4 deletions
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7
drivers/net/ethernet/broadcom/cnic.c
View File

@ -1288,7 +1288,7 @@ static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev)
if (ret)
goto error;
if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
if (CNIC_SUPPORTS_FCOE(cp)) {
ret = cnic_alloc_kcq(dev, &cp->kcq2, true);
if (ret)
goto error;
@ -3130,7 +3130,7 @@ static void cnic_service_bnx2x_bh(unsigned long data)
CNIC_WR16(dev, cp->kcq1.io_addr,
cp->kcq1.sw_prod_idx + MAX_KCQ_IDX);
if (!BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
if (cp->ethdev->drv_state & CNIC_DRV_STATE_NO_FCOE) {
cp->arm_int(dev, status_idx);
break;
}
@ -5516,8 +5516,7 @@ static struct cnic_dev *init_bnx2x_cnic(struct net_device *dev)
if (!(ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI))
cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id) &&
!(ethdev->drv_state & CNIC_DRV_STATE_NO_FCOE))
if (CNIC_SUPPORTS_FCOE(cp))
cdev->max_fcoe_conn = ethdev->max_fcoe_conn;
if (cdev->max_fcoe_conn > BNX2X_FCOE_NUM_CONNECTIONS)

4
drivers/net/ethernet/broadcom/cnic.h
View File

@ -475,6 +475,10 @@ struct bnx2x_bd_chain_next {
MAX_STAT_COUNTER_ID_E1))
#endif
#define CNIC_SUPPORTS_FCOE(cp) \
(BNX2X_CHIP_IS_E2_PLUS((cp)->chip_id) && \
!((cp)->ethdev->drv_state & CNIC_DRV_STATE_NO_FCOE))
#define CNIC_RAMROD_TMO (HZ / 4)
#endif