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Message-Id: <1281612527-27838-3-git-send-email-amit.salecha@qlogic.com>
Date: Thu, 12 Aug 2010 04:28:42 -0700
From: Amit Kumar Salecha <amit.salecha@...gic.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, ameen.rahman@...gic.com
Subject: [PATCHv1 NEXT 2/7] qlcnic: device state management fixes for virtual func
o NPAR state should be set to operationl by Mangement function only.
o NPAR state should be set to non operational before device reset.
o VF function should wait for NPAR state to be operational.
Signed-off-by: Amit Kumar Salecha <amit.salecha@...gic.com>
---
drivers/net/qlcnic/qlcnic_hdr.h | 5 +-
drivers/net/qlcnic/qlcnic_main.c | 80 +++++++++++++++++++++++---------------
2 files changed, 51 insertions(+), 34 deletions(-)
diff --git a/drivers/net/qlcnic/qlcnic_hdr.h b/drivers/net/qlcnic/qlcnic_hdr.h
index 15fc320..bd346d9 100644
--- a/drivers/net/qlcnic/qlcnic_hdr.h
+++ b/drivers/net/qlcnic/qlcnic_hdr.h
@@ -718,8 +718,9 @@ enum {
#define QLCNIC_DEV_FAILED 0x6
#define QLCNIC_DEV_QUISCENT 0x7
-#define QLCNIC_DEV_NPAR_NOT_RDY 0
-#define QLCNIC_DEV_NPAR_RDY 1
+#define QLCNIC_DEV_NPAR_NON_OPER 0 /* NON Operational */
+#define QLCNIC_DEV_NPAR_OPER 1 /* NPAR Operational */
+#define QLCNIC_DEV_NPAR_OPER_TIMEO 30 /* Operational time out */
#define QLC_DEV_CHECK_ACTIVE(VAL, FN) ((VAL) &= (1 << (FN * 4)))
#define QLC_DEV_SET_REF_CNT(VAL, FN) ((VAL) |= (1 << (FN * 4)))
diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c
index 9cc8732..b062188 100644
--- a/drivers/net/qlcnic/qlcnic_main.c
+++ b/drivers/net/qlcnic/qlcnic_main.c
@@ -2388,7 +2388,7 @@ qlcnic_fwinit_work(struct work_struct *work)
{
struct qlcnic_adapter *adapter = container_of(work,
struct qlcnic_adapter, fw_work.work);
- u32 dev_state = 0xf, npar_state;
+ u32 dev_state = 0xf;
if (qlcnic_api_lock(adapter))
goto err_ret;
@@ -2402,16 +2402,8 @@ qlcnic_fwinit_work(struct work_struct *work)
}
if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
- npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
- if (npar_state == QLCNIC_DEV_NPAR_RDY) {
- qlcnic_api_unlock(adapter);
- goto wait_npar;
- } else {
- qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
- FW_POLL_DELAY);
- qlcnic_api_unlock(adapter);
- return;
- }
+ qlcnic_api_unlock(adapter);
+ goto wait_npar;
}
if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
@@ -2460,20 +2452,17 @@ wait_npar:
QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
switch (dev_state) {
- case QLCNIC_DEV_QUISCENT:
- case QLCNIC_DEV_NEED_QUISCENT:
- case QLCNIC_DEV_NEED_RESET:
- qlcnic_schedule_work(adapter,
- qlcnic_fwinit_work, FW_POLL_DELAY);
- return;
- case QLCNIC_DEV_FAILED:
- break;
-
- default:
+ case QLCNIC_DEV_READY:
if (!adapter->nic_ops->start_firmware(adapter)) {
qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
return;
}
+ case QLCNIC_DEV_FAILED:
+ break;
+ default:
+ qlcnic_schedule_work(adapter,
+ qlcnic_fwinit_work, FW_POLL_DELAY);
+ return;
}
err_ret:
@@ -2520,6 +2509,22 @@ err_ret:
}
+/*Transit NPAR state to NON Operational */
+static void
+qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
+{
+ u32 state;
+
+ state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
+ if (state == QLCNIC_DEV_NPAR_NON_OPER)
+ return;
+
+ if (qlcnic_api_lock(adapter))
+ return;
+ QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
+ qlcnic_api_unlock(adapter);
+}
+
/*Transit to RESET state from READY state only */
static void
qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
@@ -2538,6 +2543,7 @@ qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
qlcnic_idc_debug_info(adapter, 0);
}
+ QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
qlcnic_api_unlock(adapter);
}
@@ -2545,21 +2551,14 @@ qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
static void
qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
{
- u32 state;
-
if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
- adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
+ adapter->op_mode != QLCNIC_MGMT_FUNC)
return;
if (qlcnic_api_lock(adapter))
return;
- state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
-
- if (state != QLCNIC_DEV_NPAR_RDY) {
- QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
- QLCNIC_DEV_NPAR_RDY);
- QLCDB(adapter, DRV, "NPAR READY state set\n");
- }
+ QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER);
+ QLCDB(adapter, DRV, "NPAR operational state set\n");
qlcnic_api_unlock(adapter);
}
@@ -2621,8 +2620,11 @@ qlcnic_check_health(struct qlcnic_adapter *adapter)
qlcnic_dev_request_reset(adapter);
state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
- if (state == QLCNIC_DEV_NEED_RESET || state == QLCNIC_DEV_NEED_QUISCENT)
+ if (state == QLCNIC_DEV_NEED_RESET ||
+ state == QLCNIC_DEV_NEED_QUISCENT) {
+ qlcnic_set_npar_non_operational(adapter);
adapter->need_fw_reset = 1;
+ }
heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
if (heartbit != adapter->heartbit) {
@@ -2812,11 +2814,25 @@ static int
qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
{
int err;
+ u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
+ u32 npar_state;
err = qlcnic_can_start_firmware(adapter);
if (err)
return err;
+ npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
+ while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
+ msleep(1000);
+ npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
+ }
+
+ if (!npar_opt_timeo) {
+ dev_err(&adapter->pdev->dev,
+ "Waiting for NPAR state to opertional timeout\n");
+ return -EIO;
+ }
+
qlcnic_check_options(adapter);
adapter->need_fw_reset = 0;
--
1.6.0.2
--
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