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Message-Id: <1232723799-8620-14-git-send-email-ron.mercer@qlogic.com>
Date: Fri, 23 Jan 2009 07:16:32 -0800
From: Ron Mercer <ron.mercer@...gic.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, linux-driver@...gic.com,
ron.mercer@...gic.com
Subject: [PATCH 14/21] [next] qlge: Clean up MPI firware event handler.
Signed-off-by: Ron Mercer <ron.mercer@...gic.com>
---
drivers/net/qlge/qlge.h | 1 +
drivers/net/qlge/qlge_main.c | 2 +-
drivers/net/qlge/qlge_mpi.c | 101 ++++++++++++++++++++++++++----------------
3 files changed, 64 insertions(+), 40 deletions(-)
diff --git a/drivers/net/qlge/qlge.h b/drivers/net/qlge/qlge.h
index 02c7812..0779f07 100644
--- a/drivers/net/qlge/qlge.h
+++ b/drivers/net/qlge/qlge.h
@@ -1512,6 +1512,7 @@ void ql_queue_asic_error(struct ql_adapter *qdev);
u32 ql_enable_completion_interrupt(struct ql_adapter *qdev, u32 intr);
void ql_set_ethtool_ops(struct net_device *ndev);
int ql_read_xgmac_reg64(struct ql_adapter *qdev, u32 reg, u64 *data);
+int ql_cam_route_initialize(struct ql_adapter *qdev);
#if 1
#define QL_ALL_DUMP
diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c
index 023dfe9..ec01dbf 100644
--- a/drivers/net/qlge/qlge_main.c
+++ b/drivers/net/qlge/qlge_main.c
@@ -2937,7 +2937,7 @@ exit:
return status;
}
-static int ql_cam_route_initialize(struct ql_adapter *qdev)
+int ql_cam_route_initialize(struct ql_adapter *qdev)
{
int status;
diff --git a/drivers/net/qlge/qlge_mpi.c b/drivers/net/qlge/qlge_mpi.c
index eda17b0..867baca 100644
--- a/drivers/net/qlge/qlge_mpi.c
+++ b/drivers/net/qlge/qlge_mpi.c
@@ -75,7 +75,7 @@ static void ql_link_up(struct ql_adapter *qdev, struct mbox_params *mbcp)
mbcp->out_count = 2;
if (ql_get_mb_sts(qdev, mbcp))
- goto exit;
+ return;
qdev->link_status = mbcp->mbox_out[1];
QPRINTK(qdev, DRV, ERR, "Link Up.\n");
@@ -85,9 +85,6 @@ static void ql_link_up(struct ql_adapter *qdev, struct mbox_params *mbcp)
netif_carrier_on(qdev->ndev);
netif_wake_queue(qdev->ndev);
}
-exit:
- /* Clear the MPI firmware status. */
- ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT);
}
static void ql_link_down(struct ql_adapter *qdev, struct mbox_params *mbcp)
@@ -96,7 +93,7 @@ static void ql_link_down(struct ql_adapter *qdev, struct mbox_params *mbcp)
if (ql_get_mb_sts(qdev, mbcp)) {
QPRINTK(qdev, DRV, ERR, "Firmware did not initialize!\n");
- goto exit;
+ return;
}
if (netif_carrier_ok(qdev->ndev)) {
@@ -106,27 +103,77 @@ static void ql_link_down(struct ql_adapter *qdev, struct mbox_params *mbcp)
}
QPRINTK(qdev, DRV, ERR, "Link Down.\n");
QPRINTK(qdev, DRV, ERR, "Link Status = 0x%.08x.\n", mbcp->mbox_out[1]);
-exit:
- /* Clear the MPI firmware status. */
- ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT);
}
static void ql_init_fw_done(struct ql_adapter *qdev, struct mbox_params *mbcp)
{
+ int status;
+
mbcp->out_count = 2;
if (ql_get_mb_sts(qdev, mbcp)) {
QPRINTK(qdev, DRV, ERR, "Firmware did not initialize!\n");
- goto exit;
+ return;
+ }
+ status = ql_cam_route_initialize(qdev);
+ if (status) {
+ QPRINTK(qdev, IFUP, ERR,
+ "Failed to init CAM/Routing tables.\n");
+ return;
}
QPRINTK(qdev, DRV, ERR, "Firmware initialized!\n");
QPRINTK(qdev, DRV, ERR, "Firmware status = 0x%.08x.\n",
mbcp->mbox_out[0]);
QPRINTK(qdev, DRV, ERR, "Firmware Revision = 0x%.08x.\n",
mbcp->mbox_out[1]);
-exit:
- /* Clear the MPI firmware status. */
+}
+
+/* Process an async event and clear it unless it's an
+ * error condition.
+ * This can get called iteratively from the mpi_work thread
+ * when events arrive via an interrupt.
+ * It also gets called when a mailbox command is polling for
+ * it's completion. */
+static int ql_mpi_handler(struct ql_adapter *qdev, struct mbox_params *mbcp)
+{
+ int status;
+
+ /* Just get mailbox zero for now. */
+ mbcp->out_count = 1;
+ status = ql_get_mb_sts(qdev, mbcp);
+ if (status) {
+ QPRINTK(qdev, DRV, ERR,
+ "Could not read MPI, resetting ASIC!\n");
+ ql_queue_asic_error(qdev);
+ goto end;
+ }
+
+ switch (mbcp->mbox_out[0]) {
+
+ case AEN_LINK_UP:
+ ql_link_up(qdev, mbcp);
+ break;
+
+ case AEN_LINK_DOWN:
+ ql_link_down(qdev, mbcp);
+ break;
+
+ case AEN_FW_INIT_DONE:
+ ql_init_fw_done(qdev, mbcp);
+ break;
+
+ case AEN_FW_INIT_FAIL:
+ case AEN_SYS_ERR:
+ case MB_CMD_STS_ERR:
+ default:
+ ql_queue_fw_error(qdev);
+ QPRINTK(qdev, DRV, ERR,
+ "Unsupported AE %.08x.\n", mbcp->mbox_out[0]);
+ /* Clear the MPI firmware status. */
+ }
+end:
ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT);
+ return status;
}
void ql_mpi_work(struct work_struct *work)
@@ -135,37 +182,13 @@ void ql_mpi_work(struct work_struct *work)
container_of(work, struct ql_adapter, mpi_work.work);
struct mbox_params mbc;
struct mbox_params *mbcp = &mbc;
- mbcp->out_count = 1;
while (ql_read32(qdev, STS) & STS_PI) {
- if (ql_get_mb_sts(qdev, mbcp)) {
- QPRINTK(qdev, DRV, ERR,
- "Could not read MPI, resetting ASIC!\n");
- ql_queue_asic_error(qdev);
- }
-
- switch (mbcp->mbox_out[0]) {
- case AEN_LINK_UP:
- ql_link_up(qdev, mbcp);
- break;
- case AEN_LINK_DOWN:
- ql_link_down(qdev, mbcp);
- break;
- case AEN_FW_INIT_DONE:
- ql_init_fw_done(qdev, mbcp);
- break;
- case MB_CMD_STS_GOOD:
- break;
- case AEN_FW_INIT_FAIL:
- case AEN_SYS_ERR:
- case MB_CMD_STS_ERR:
- ql_queue_fw_error(qdev);
- default:
- /* Clear the MPI firmware status. */
- ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT);
- break;
- }
+ memset(mbcp, 0, sizeof(struct mbox_params));
+ mbcp->out_count = 1;
+ ql_mpi_handler(qdev, mbcp);
}
+
ql_enable_completion_interrupt(qdev, 0);
}
--
1.6.0.2
--
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