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Message-Id: <1232723799-8620-21-git-send-email-ron.mercer@qlogic.com>
Date: Fri, 23 Jan 2009 07:16:39 -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 21/21] [next] qlge: Add port config mailbox command.
Add support for using the port config firmware mailbox command to change
the tx/rx max framesize based on MTU from host.
Signed-off-by: Ron Mercer <ron.mercer@...gic.com>
---
drivers/net/qlge/qlge.h | 3 +
drivers/net/qlge/qlge_main.c | 5 +
drivers/net/qlge/qlge_mpi.c | 198 +++++++++++++++++++++++++++++++++++++++++-
3 files changed, 202 insertions(+), 4 deletions(-)
diff --git a/drivers/net/qlge/qlge.h b/drivers/net/qlge/qlge.h
index afc9a3b..47e1537 100644
--- a/drivers/net/qlge/qlge.h
+++ b/drivers/net/qlge/qlge.h
@@ -1473,7 +1473,9 @@ struct ql_adapter {
struct delayed_work asic_reset_work;
struct delayed_work mpi_reset_work;
struct delayed_work mpi_work;
+ struct delayed_work mpi_port_cfg_work;
struct delayed_work mpi_idc_work;
+ struct completion ide_completion;
};
/*
@@ -1542,6 +1544,7 @@ void ql_queue_fw_error(struct ql_adapter *qdev);
void ql_mpi_work(struct work_struct *work);
void ql_mpi_reset_work(struct work_struct *work);
void ql_mpi_idc_work(struct work_struct *work);
+void ql_mpi_port_cfg_work(struct work_struct *work);
int ql_wait_reg_rdy(struct ql_adapter *qdev, u32 reg, u32 bit, u32 ebit);
void ql_queue_asic_error(struct ql_adapter *qdev);
u32 ql_enable_completion_interrupt(struct ql_adapter *qdev, u32 intr);
diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c
index 4110402..92189f7 100644
--- a/drivers/net/qlge/qlge_main.c
+++ b/drivers/net/qlge/qlge_main.c
@@ -2994,6 +2994,7 @@ static int ql_adapter_down(struct ql_adapter *qdev)
cancel_delayed_work_sync(&qdev->mpi_reset_work);
cancel_delayed_work_sync(&qdev->mpi_work);
cancel_delayed_work_sync(&qdev->mpi_idc_work);
+ cancel_delayed_work_sync(&qdev->mpi_port_cfg_work);
/* The default queue at index 0 is always processed in
* a workqueue.
*/
@@ -3236,6 +3237,8 @@ static int qlge_change_mtu(struct net_device *ndev, int new_mtu)
if (ndev->mtu == 1500 && new_mtu == 9000) {
QPRINTK(qdev, IFUP, ERR, "Changing to jumbo MTU.\n");
+ queue_delayed_work(qdev->workqueue,
+ &qdev->mpi_port_cfg_work, 0);
} else if (ndev->mtu == 9000 && new_mtu == 1500) {
QPRINTK(qdev, IFUP, ERR, "Changing to normal MTU.\n");
} else if ((ndev->mtu == 1500 && new_mtu == 1500) ||
@@ -3550,6 +3553,8 @@ static int __devinit ql_init_device(struct pci_dev *pdev,
INIT_DELAYED_WORK(&qdev->mpi_reset_work, ql_mpi_reset_work);
INIT_DELAYED_WORK(&qdev->mpi_work, ql_mpi_work);
INIT_DELAYED_WORK(&qdev->mpi_idc_work, ql_mpi_idc_work);
+ INIT_DELAYED_WORK(&qdev->mpi_port_cfg_work, ql_mpi_port_cfg_work);
+ init_completion(&qdev->ide_completion);
mutex_init(&qdev->mpi_mutex);
if (!cards_found) {
diff --git a/drivers/net/qlge/qlge_mpi.c b/drivers/net/qlge/qlge_mpi.c
index f2f77c6..864df38 100644
--- a/drivers/net/qlge/qlge_mpi.c
+++ b/drivers/net/qlge/qlge_mpi.c
@@ -179,6 +179,27 @@ static int ql_idc_req_aen(struct ql_adapter *qdev)
return status;
}
+static int ql_idc_cmplt_aen(struct ql_adapter *qdev)
+{
+ int status;
+ struct mbox_params *mbcp = &qdev->idc_mbc;
+
+ mbcp->out_count = 4;
+ status = ql_get_mb_sts(qdev, mbcp);
+ if (status) {
+ QPRINTK(qdev, DRV, ERR,
+ "Could not read MPI, resetting RISC!\n");
+ ql_queue_fw_error(qdev);
+ } else
+ /* Wake up the sleeping mpi_idc_work thread that is
+ * waiting for this event.
+ */
+
+ complete(&qdev->ide_completion);
+
+ return status;
+}
+
static void ql_link_up(struct ql_adapter *qdev, struct mbox_params *mbcp)
{
int status = 0;
@@ -331,6 +352,11 @@ static int ql_mpi_handler(struct ql_adapter *qdev, struct mbox_params *mbcp)
status = ql_idc_req_aen(qdev);
break;
+ case AEN_IDC_CMPLT:
+ case AEN_IDC_EXT:
+ status = ql_idc_cmplt_aen(qdev);
+ break;
+
case AEN_LINK_UP:
ql_link_up(qdev, mbcp);
break;
@@ -423,8 +449,10 @@ static int ql_mailbox_command(struct ql_adapter *qdev, struct mbox_params *mbcp)
* command complete or an AEN. If it's our
* completion then get out.
*/
- if ((mbcp->mbox_out[0] & 0x0000f000) ==
- 0x00004000)
+ if (((mbcp->mbox_out[0] & 0x0000f000) ==
+ MB_CMD_STS_GOOD) ||
+ ((mbcp->mbox_out[0] & 0x0000f000) ==
+ MB_CMD_STS_INTRMDT))
break;
} while (--count);
@@ -440,7 +468,10 @@ static int ql_mailbox_command(struct ql_adapter *qdev, struct mbox_params *mbcp)
*/
ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT);
- if (mbcp->mbox_out[0] != MB_CMD_STS_GOOD) {
+ if (((mbcp->mbox_out[0] & 0x0000f000) !=
+ MB_CMD_STS_GOOD) &&
+ ((mbcp->mbox_out[0] & 0x0000f000) !=
+ MB_CMD_STS_INTRMDT)) {
ql_display_mb_sts(qdev, mbcp);
status = -EIO;
}
@@ -450,7 +481,8 @@ end:
ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16) | INTR_MASK_PI);
return status;
}
-int ql_mb_idc_ack(struct ql_adapter *qdev)
+
+static int ql_mb_idc_ack(struct ql_adapter *qdev)
{
struct mbox_params mbc;
struct mbox_params *mbcp = &mbc;
@@ -479,6 +511,164 @@ int ql_mb_idc_ack(struct ql_adapter *qdev)
return status;
}
+/* Most likely will block. */
+static int ql_mb_set_port_cfg(struct ql_adapter *qdev)
+{
+ struct mbox_params mbc;
+ struct mbox_params *mbcp = &mbc;
+ int status = 0;
+
+ memset(mbcp, 0, sizeof(struct mbox_params));
+
+ mbcp->in_count = 3;
+ mbcp->out_count = 1;
+
+ mbcp->mbox_in[0] = MB_CMD_SET_PORT_CFG;
+ mbcp->mbox_in[1] = qdev->link_config;
+ mbcp->mbox_in[2] = qdev->max_frame_size;
+
+
+ status = ql_mailbox_command(qdev, mbcp);
+ if (status)
+ return status;
+
+ if (mbcp->mbox_out[0] == MB_CMD_STS_INTRMDT) {
+ QPRINTK(qdev, DRV, ERR,
+ "Port Config sent, wait for IDC.\n");
+ } else if (mbcp->mbox_out[0] != MB_CMD_STS_GOOD) {
+ QPRINTK(qdev, DRV, ERR,
+ "Failed Set Port Configuration.\n");
+ status = -EIO;
+ }
+ return status;
+}
+
+static int ql_mb_get_port_cfg(struct ql_adapter *qdev)
+{
+ struct mbox_params mbc;
+ struct mbox_params *mbcp = &mbc;
+ int status = 0;
+
+ memset(mbcp, 0, sizeof(struct mbox_params));
+
+ mbcp->in_count = 1;
+ mbcp->out_count = 3;
+
+ mbcp->mbox_in[0] = MB_CMD_GET_PORT_CFG;
+
+ status = ql_mailbox_command(qdev, mbcp);
+ if (status)
+ return status;
+
+ if (mbcp->mbox_out[0] != MB_CMD_STS_GOOD) {
+ QPRINTK(qdev, DRV, ERR,
+ "Failed Get Port Configuration.\n");
+ status = -EIO;
+ } else {
+ QPRINTK(qdev, DRV, ERR,
+ "Passed Get Port Configuration.\n");
+ qdev->link_config = mbcp->mbox_out[1];
+ qdev->max_frame_size = mbcp->mbox_out[2];
+ }
+ return status;
+}
+
+static int ql_idc_wait(struct ql_adapter *qdev)
+{
+ int status = -ETIMEDOUT;
+ long wait_time = 1 * HZ;
+ struct mbox_params *mbcp = &qdev->idc_mbc;
+
+ do {
+ /* Wait here for the command to complete
+ * via the IDC process.
+ */
+ wait_time =
+ wait_for_completion_timeout(&qdev->ide_completion,
+ wait_time);
+ if (!wait_time) {
+ QPRINTK(qdev, DRV, ERR,
+ "IDC Timeout.\n");
+ break;
+ }
+
+ /* Now examine the response from the IDC process.
+ * We might have a good completion or a request for
+ * more wait time.
+ */
+ if (mbcp->mbox_out[0] == AEN_IDC_EXT) {
+ QPRINTK(qdev, DRV, ERR,
+ "IDC Time Extension from function.\n");
+ wait_time += (mbcp->mbox_out[1] >> 8) & 0x0000000f;
+ } else if (mbcp->mbox_out[0] == AEN_IDC_CMPLT) {
+ QPRINTK(qdev, DRV, ERR,
+ "IDC Success.\n");
+ status = 0;
+ break;
+ } else {
+ QPRINTK(qdev, DRV, ERR,
+ "IDC: Invalid State 0x%.04x.\n",
+ mbcp->mbox_out[0]);
+ status = -EIO;
+ break;
+ }
+ } while (wait_time);
+
+ return status;
+}
+
+static int ql_set_port_cfg(struct ql_adapter *qdev)
+{
+ int status;
+
+ status = ql_mb_set_port_cfg(qdev);
+ if (status)
+ return status;
+
+ status = ql_idc_wait(qdev);
+ return status;
+}
+
+/* The following routines are worker threads that process
+ * events that may sleep waiting for completion.
+ */
+void ql_mpi_port_cfg_work(struct work_struct *work)
+{
+ struct ql_adapter *qdev =
+ container_of(work, struct ql_adapter, mpi_port_cfg_work.work);
+ struct net_device *ndev = qdev->ndev;
+ int status;
+
+ status = ql_mb_get_port_cfg(qdev);
+ if (status) {
+ QPRINTK(qdev, DRV, ERR,
+ "Bug: Failed to get port config data.\n");
+ goto err;
+ }
+
+ if (ndev->mtu <= 2500)
+ goto end;
+ else if (qdev->link_config & CFG_JUMBO_FRAME_SIZE &&
+ qdev->max_frame_size ==
+ CFG_DEFAULT_MAX_FRAME_SIZE)
+ goto end;
+
+ qdev->link_config |= CFG_JUMBO_FRAME_SIZE;
+ qdev->max_frame_size = CFG_DEFAULT_MAX_FRAME_SIZE;
+ status = ql_set_port_cfg(qdev);
+ if (status) {
+ QPRINTK(qdev, DRV, ERR,
+ "Bug: Failed to set port config data.\n");
+ goto err;
+ }
+end:
+ clear_bit(QL_PORT_CFG, &qdev->flags);
+ return;
+err:
+ ql_queue_fw_error(qdev);
+ goto end;
+}
+
void ql_mpi_idc_work(struct work_struct *work)
{
struct ql_adapter *qdev =
--
1.6.0.2
--
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