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authorMichael Chan <mchan@broadcom.com>2010-06-24 14:58:41 +0000
committerDavid S. Miller <davem@davemloft.net>2010-06-25 20:37:20 -0700
commitb177a5d5d876965b42788f3a05197ef385c84dcf (patch)
treef3aefc91f4416c2057a7e98eee11ef0db77d6591
parent644b9d4f8b8d74f4d87f14dede5e331555d3e701 (diff)
downloadblackbird-op-linux-b177a5d5d876965b42788f3a05197ef385c84dcf.tar.gz
blackbird-op-linux-b177a5d5d876965b42788f3a05197ef385c84dcf.zip
cnic: Further unify kcq handling code.
This eliminates some of the duplicate code for the various devices that require the same basic kcq handling. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/cnic.c71
1 files changed, 34 insertions, 37 deletions
diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c
index fabdb7868c94..5ecf0bcf372d 100644
--- a/drivers/net/cnic.c
+++ b/drivers/net/cnic.c
@@ -2223,16 +2223,12 @@ static void cnic_chk_pkt_rings(struct cnic_local *cp)
clear_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
}
-static int cnic_service_bnx2(void *data, void *status_blk)
+static u32 cnic_service_bnx2_queues(struct cnic_dev *dev)
{
- struct cnic_dev *dev = data;
struct cnic_local *cp = dev->cnic_priv;
- u32 status_idx = *cp->kcq1.status_idx_ptr;
+ u32 status_idx = (u16) *cp->kcq1.status_idx_ptr;
int kcqe_cnt;
- if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags)))
- return status_idx;
-
cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
while ((kcqe_cnt = cnic_get_kcqes(dev, &cp->kcq1))) {
@@ -2242,7 +2238,7 @@ static int cnic_service_bnx2(void *data, void *status_blk)
/* Tell compiler that status_blk fields can change. */
barrier();
if (status_idx != *cp->kcq1.status_idx_ptr) {
- status_idx = *cp->kcq1.status_idx_ptr;
+ status_idx = (u16) *cp->kcq1.status_idx_ptr;
cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
} else
break;
@@ -2251,37 +2247,29 @@ static int cnic_service_bnx2(void *data, void *status_blk)
CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx);
cnic_chk_pkt_rings(cp);
+
return status_idx;
}
-static void cnic_service_bnx2_msix(unsigned long data)
+static int cnic_service_bnx2(void *data, void *status_blk)
{
- struct cnic_dev *dev = (struct cnic_dev *) data;
+ struct cnic_dev *dev = data;
struct cnic_local *cp = dev->cnic_priv;
- struct status_block_msix *status_blk = cp->status_blk.bnx2;
u32 status_idx = *cp->kcq1.status_idx_ptr;
- int kcqe_cnt;
-
- cp->kwq_con_idx = status_blk->status_cmd_consumer_index;
- while ((kcqe_cnt = cnic_get_kcqes(dev, &cp->kcq1))) {
-
- service_kcqes(dev, kcqe_cnt);
+ if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags)))
+ return status_idx;
- /* Tell compiler that status_blk fields can change. */
- barrier();
- if (status_idx != *cp->kcq1.status_idx_ptr) {
- status_idx = *cp->kcq1.status_idx_ptr;
- cp->kwq_con_idx = status_blk->status_cmd_consumer_index;
- } else
- break;
- }
+ return cnic_service_bnx2_queues(dev);
+}
- CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx);
+static void cnic_service_bnx2_msix(unsigned long data)
+{
+ struct cnic_dev *dev = (struct cnic_dev *) data;
+ struct cnic_local *cp = dev->cnic_priv;
- cnic_chk_pkt_rings(cp);
+ cp->last_status_idx = cnic_service_bnx2_queues(dev);
- cp->last_status_idx = status_idx;
CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
}
@@ -2338,27 +2326,35 @@ static void cnic_ack_bnx2x_msix(struct cnic_dev *dev)
IGU_INT_DISABLE, 0);
}
-static void cnic_service_bnx2x_bh(unsigned long data)
+static u32 cnic_service_bnx2x_kcq(struct cnic_dev *dev, struct kcq_info *info)
{
- struct cnic_dev *dev = (struct cnic_dev *) data;
- struct cnic_local *cp = dev->cnic_priv;
- u32 status_idx = *cp->kcq1.status_idx_ptr;
+ u32 last_status = *info->status_idx_ptr;
int kcqe_cnt;
- if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags)))
- return;
-
- while ((kcqe_cnt = cnic_get_kcqes(dev, &cp->kcq1))) {
+ while ((kcqe_cnt = cnic_get_kcqes(dev, info))) {
service_kcqes(dev, kcqe_cnt);
/* Tell compiler that sblk fields can change. */
barrier();
- if (status_idx == *cp->kcq1.status_idx_ptr)
+ if (last_status == *info->status_idx_ptr)
break;
- status_idx = *cp->kcq1.status_idx_ptr;
+ last_status = *info->status_idx_ptr;
}
+ return last_status;
+}
+
+static void cnic_service_bnx2x_bh(unsigned long data)
+{
+ struct cnic_dev *dev = (struct cnic_dev *) data;
+ struct cnic_local *cp = dev->cnic_priv;
+ u32 status_idx;
+
+ if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags)))
+ return;
+
+ status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq1);
CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx + MAX_KCQ_IDX);
cnic_ack_bnx2x_int(dev, cp->status_blk_num, CSTORM_ID,
@@ -3786,6 +3782,7 @@ static int cnic_start_bnx2_hw(struct cnic_dev *dev)
cp->kcq1.hw_prod_idx_ptr =
(u16 *) &msblk->status_completion_producer_index;
cp->kcq1.status_idx_ptr = (u16 *) &msblk->status_idx;
+ cp->kwq_con_idx_ptr = (u16 *) &msblk->status_cmd_consumer_index;
cp->int_num = sb_id << BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT;
cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
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