X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fnet%2Fqlge%2Fqlge_mpi.c;h=f9a237165fc1d0a770d51b1be2a5938f52285eba;hb=bb6676705e41efdf4ba788340a885b19fd5a0215;hp=fa31891b6e624bf00c47c78a4d9e986804c4728c;hpb=4b48d9d44ebe0e8c31b4fe3b7480941576fff613;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/net/qlge/qlge_mpi.c b/drivers/net/qlge/qlge_mpi.c
index fa31891b6e6..f9a237165fc 100644
--- a/drivers/net/qlge/qlge_mpi.c
+++ b/drivers/net/qlge/qlge_mpi.c
@@ -1,6 +1,26 @@
 #include "qlge.h"
 
-static int ql_read_mbox_reg(struct ql_adapter *qdev, u32 reg, u32 *data)
+static void ql_display_mb_sts(struct ql_adapter *qdev,
+						struct mbox_params *mbcp)
+{
+	int i;
+	static char *err_sts[] = {
+		"Command Complete",
+		"Command Not Supported",
+		"Host Interface Error",
+		"Checksum Error",
+		"Unused Completion Status",
+		"Test Failed",
+		"Command Parameter Error"};
+
+	QPRINTK(qdev, DRV, DEBUG, "%s.\n",
+		err_sts[mbcp->mbox_out[0] & 0x0000000f]);
+	for (i = 0; i < mbcp->out_count; i++)
+		QPRINTK(qdev, DRV, DEBUG, "mbox_out[%d] = 0x%.08x.\n",
+				i, mbcp->mbox_out[i]);
+}
+
+int ql_read_mpi_reg(struct ql_adapter *qdev, u32 reg, u32 *data)
 {
 	int status;
 	/* wait for reg to come ready */
@@ -19,6 +39,32 @@ exit:
 	return status;
 }
 
+int ql_write_mpi_reg(struct ql_adapter *qdev, u32 reg, u32 data)
+{
+	int status = 0;
+	/* wait for reg to come ready */
+	status = ql_wait_reg_rdy(qdev, PROC_ADDR, PROC_ADDR_RDY, PROC_ADDR_ERR);
+	if (status)
+		goto exit;
+	/* write the data to the data reg */
+	ql_write32(qdev, PROC_DATA, data);
+	/* trigger the write */
+	ql_write32(qdev, PROC_ADDR, reg);
+	/* wait for reg to come ready */
+	status = ql_wait_reg_rdy(qdev, PROC_ADDR, PROC_ADDR_RDY, PROC_ADDR_ERR);
+	if (status)
+		goto exit;
+exit:
+	return status;
+}
+
+int ql_soft_reset_mpi_risc(struct ql_adapter *qdev)
+{
+	int status;
+	status = ql_write_mpi_reg(qdev, 0x00001010, 1);
+	return status;
+}
+
 static int ql_get_mb_sts(struct ql_adapter *qdev, struct mbox_params *mbcp)
 {
 	int i, status;
@@ -28,7 +74,7 @@ static int ql_get_mb_sts(struct ql_adapter *qdev, struct mbox_params *mbcp)
 		return -EBUSY;
 	for (i = 0; i < mbcp->out_count; i++) {
 		status =
-		    ql_read_mbox_reg(qdev, qdev->mailbox_out + i,
+		    ql_read_mpi_reg(qdev, qdev->mailbox_out + i,
 				     &mbcp->mbox_out[i]);
 		if (status) {
 			QPRINTK(qdev, DRV, ERR, "Failed mailbox read.\n");
@@ -39,102 +85,737 @@ static int ql_get_mb_sts(struct ql_adapter *qdev, struct mbox_params *mbcp)
 	return status;
 }
 
+/* Wait for a single mailbox command to complete.
+ * Returns zero on success.
+ */
+static int ql_wait_mbx_cmd_cmplt(struct ql_adapter *qdev)
+{
+	int count = 50;	/* TODO: arbitrary for now. */
+	u32 value;
+
+	do {
+		value = ql_read32(qdev, STS);
+		if (value & STS_PI)
+			return 0;
+		udelay(UDELAY_DELAY); /* 10us */
+	} while (--count);
+	return -ETIMEDOUT;
+}
+
+/* Execute a single mailbox command.
+ * Caller must hold PROC_ADDR semaphore.
+ */
+static int ql_exec_mb_cmd(struct ql_adapter *qdev, struct mbox_params *mbcp)
+{
+	int i, status;
+
+	/*
+	 * Make sure there's nothing pending.
+	 * This shouldn't happen.
+	 */
+	if (ql_read32(qdev, CSR) & CSR_HRI)
+		return -EIO;
+
+	status = ql_sem_spinlock(qdev, SEM_PROC_REG_MASK);
+	if (status)
+		return status;
+
+	/*
+	 * Fill the outbound mailboxes.
+	 */
+	for (i = 0; i < mbcp->in_count; i++) {
+		status = ql_write_mpi_reg(qdev, qdev->mailbox_in + i,
+						mbcp->mbox_in[i]);
+		if (status)
+			goto end;
+	}
+	/*
+	 * Wake up the MPI firmware.
+	 */
+	ql_write32(qdev, CSR, CSR_CMD_SET_H2R_INT);
+end:
+	ql_sem_unlock(qdev, SEM_PROC_REG_MASK);
+	return status;
+}
+
+/* We are being asked by firmware to accept
+ * a change to the port.  This is only
+ * a change to max frame sizes (Tx/Rx), pause
+ * paramters, or loopback mode. We wake up a worker
+ * to handler processing this since a mailbox command
+ * will need to be sent to ACK the request.
+ */
+static int ql_idc_req_aen(struct ql_adapter *qdev)
+{
+	int status;
+	struct mbox_params *mbcp = &qdev->idc_mbc;
+
+	QPRINTK(qdev, DRV, ERR, "Enter!\n");
+	/* Get the status data and start up a thread to
+	 * handle the request.
+	 */
+	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 ASIC!\n");
+		ql_queue_asic_error(qdev);
+	} else	{
+		/* Begin polled mode early so
+		 * we don't get another interrupt
+		 * when we leave mpi_worker.
+		 */
+		ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16));
+		queue_delayed_work(qdev->workqueue, &qdev->mpi_idc_work, 0);
+	}
+	return status;
+}
+
+/* Process an inter-device event completion.
+ * If good, signal the caller's completion.
+ */
+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;
 	mbcp->out_count = 2;
 
-	if (ql_get_mb_sts(qdev, mbcp))
-		goto exit;
+	status = ql_get_mb_sts(qdev, mbcp);
+	if (status) {
+		QPRINTK(qdev, DRV, ERR,
+			"%s: Could not get mailbox status.\n", __func__);
+		return;
+	}
 
 	qdev->link_status = mbcp->mbox_out[1];
 	QPRINTK(qdev, DRV, ERR, "Link Up.\n");
-	QPRINTK(qdev, DRV, INFO, "Link Status = 0x%.08x.\n", mbcp->mbox_out[1]);
-	if (!netif_carrier_ok(qdev->ndev)) {
-		QPRINTK(qdev, LINK, INFO, "Link is Up.\n");
-		netif_carrier_on(qdev->ndev);
-		netif_wake_queue(qdev->ndev);
+
+	/* If we're coming back from an IDC event
+	 * then set up the CAM and frame routing.
+	 */
+	if (test_bit(QL_CAM_RT_SET, &qdev->flags)) {
+		status = ql_cam_route_initialize(qdev);
+		if (status) {
+			QPRINTK(qdev, IFUP, ERR,
+			"Failed to init CAM/Routing tables.\n");
+			return;
+		} else
+			clear_bit(QL_CAM_RT_SET, &qdev->flags);
 	}
-exit:
-	/* Clear the MPI firmware status. */
-	ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT);
+
+	/* Queue up a worker to check the frame
+	 * size information, and fix it if it's not
+	 * to our liking.
+	 */
+	if (!test_bit(QL_PORT_CFG, &qdev->flags)) {
+		QPRINTK(qdev, DRV, ERR, "Queue Port Config Worker!\n");
+		set_bit(QL_PORT_CFG, &qdev->flags);
+		/* Begin polled mode early so
+		 * we don't get another interrupt
+		 * when we leave mpi_worker dpc.
+		 */
+		ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16));
+		queue_delayed_work(qdev->workqueue,
+				&qdev->mpi_port_cfg_work, 0);
+	}
+
+	netif_carrier_on(qdev->ndev);
 }
 
 static void ql_link_down(struct ql_adapter *qdev, struct mbox_params *mbcp)
 {
+	int status;
+
 	mbcp->out_count = 3;
 
-	if (ql_get_mb_sts(qdev, mbcp)) {
+	status = ql_get_mb_sts(qdev, mbcp);
+	if (status)
+		QPRINTK(qdev, DRV, ERR, "Link down AEN broken!\n");
+
+	netif_carrier_off(qdev->ndev);
+}
+
+static int ql_sfp_in(struct ql_adapter *qdev, struct mbox_params *mbcp)
+{
+	int status;
+
+	mbcp->out_count = 5;
+
+	status = ql_get_mb_sts(qdev, mbcp);
+	if (status)
+		QPRINTK(qdev, DRV, ERR, "SFP in AEN broken!\n");
+	else
+		QPRINTK(qdev, DRV, ERR, "SFP insertion detected.\n");
+
+	return status;
+}
+
+static int ql_sfp_out(struct ql_adapter *qdev, struct mbox_params *mbcp)
+{
+	int status;
+
+	mbcp->out_count = 1;
+
+	status = ql_get_mb_sts(qdev, mbcp);
+	if (status)
+		QPRINTK(qdev, DRV, ERR, "SFP out AEN broken!\n");
+	else
+		QPRINTK(qdev, DRV, ERR, "SFP removal detected.\n");
+
+	return status;
+}
+
+static void ql_init_fw_done(struct ql_adapter *qdev, struct mbox_params *mbcp)
+{
+	int status;
+
+	mbcp->out_count = 2;
+
+	status = ql_get_mb_sts(qdev, mbcp);
+	if (status) {
 		QPRINTK(qdev, DRV, ERR, "Firmware did not initialize!\n");
-		goto exit;
+	} else {
+		QPRINTK(qdev, DRV, ERR, "Firmware Revision  = 0x%.08x.\n",
+			mbcp->mbox_out[1]);
+		status = ql_cam_route_initialize(qdev);
+		if (status)
+			QPRINTK(qdev, IFUP, ERR,
+				"Failed to init CAM/Routing tables.\n");
 	}
+}
 
-	if (netif_carrier_ok(qdev->ndev)) {
-		QPRINTK(qdev, LINK, INFO, "Link is Down.\n");
-		netif_carrier_off(qdev->ndev);
-		netif_stop_queue(qdev->ndev);
+/* 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;
+	int orig_count = mbcp->out_count;
+
+	/* 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;
 	}
-	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. */
+
+	switch (mbcp->mbox_out[0]) {
+
+	/* This case is only active when we arrive here
+	 * as a result of issuing a mailbox command to
+	 * the firmware.
+	 */
+	case MB_CMD_STS_INTRMDT:
+	case MB_CMD_STS_GOOD:
+	case MB_CMD_STS_INVLD_CMD:
+	case MB_CMD_STS_XFC_ERR:
+	case MB_CMD_STS_CSUM_ERR:
+	case MB_CMD_STS_ERR:
+	case MB_CMD_STS_PARAM_ERR:
+		/* We can only get mailbox status if we're polling from an
+		 * unfinished command.  Get the rest of the status data and
+		 * return back to the caller.
+		 * We only end up here when we're polling for a mailbox
+		 * command completion.
+		 */
+		mbcp->out_count = orig_count;
+		status = ql_get_mb_sts(qdev, mbcp);
+		return status;
+
+	/* We are being asked by firmware to accept
+	 * a change to the port.  This is only
+	 * a change to max frame sizes (Tx/Rx), pause
+	 * paramters, or loopback mode.
+	 */
+	case AEN_IDC_REQ:
+		status = ql_idc_req_aen(qdev);
+		break;
+
+	/* Process and inbound IDC event.
+	 * This will happen when we're trying to
+	 * change tx/rx max frame size, change pause
+	 * paramters or loopback mode.
+	 */
+	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;
+
+	case AEN_LINK_DOWN:
+		ql_link_down(qdev, mbcp);
+		break;
+
+	case AEN_FW_INIT_DONE:
+		/* If we're in process on executing the firmware,
+		 * then convert the status to normal mailbox status.
+		 */
+		if (mbcp->mbox_in[0] == MB_CMD_EX_FW) {
+			mbcp->out_count = orig_count;
+			status = ql_get_mb_sts(qdev, mbcp);
+			mbcp->mbox_out[0] = MB_CMD_STS_GOOD;
+			return status;
+		}
+		ql_init_fw_done(qdev, mbcp);
+		break;
+
+	case AEN_AEN_SFP_IN:
+		ql_sfp_in(qdev, mbcp);
+		break;
+
+	case AEN_AEN_SFP_OUT:
+		ql_sfp_out(qdev, mbcp);
+		break;
+
+	/* This event can arrive at boot time or after an
+	 * MPI reset if the firmware failed to initialize.
+	 */
+	case AEN_FW_INIT_FAIL:
+		/* If we're in process on executing the firmware,
+		 * then convert the status to normal mailbox status.
+		 */
+		if (mbcp->mbox_in[0] == MB_CMD_EX_FW) {
+			mbcp->out_count = orig_count;
+			status = ql_get_mb_sts(qdev, mbcp);
+			mbcp->mbox_out[0] = MB_CMD_STS_ERR;
+			return status;
+		}
+		QPRINTK(qdev, DRV, ERR,
+			"Firmware initialization failed.\n");
+		status = -EIO;
+		ql_queue_fw_error(qdev);
+		break;
+
+	case AEN_SYS_ERR:
+		QPRINTK(qdev, DRV, ERR,
+			"System Error.\n");
+		ql_queue_fw_error(qdev);
+		status = -EIO;
+		break;
+
+	default:
+		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;
 }
 
-static void ql_init_fw_done(struct ql_adapter *qdev, struct mbox_params *mbcp)
+/* Execute a single mailbox command.
+ * mbcp is a pointer to an array of u32.  Each
+ * element in the array contains the value for it's
+ * respective mailbox register.
+ */
+static int ql_mailbox_command(struct ql_adapter *qdev, struct mbox_params *mbcp)
 {
-	mbcp->out_count = 2;
+	int status, count;
 
-	if (ql_get_mb_sts(qdev, mbcp)) {
-		QPRINTK(qdev, DRV, ERR, "Firmware did not initialize!\n");
-		goto exit;
+	mutex_lock(&qdev->mpi_mutex);
+
+	/* Begin polled mode for MPI */
+	ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16));
+
+	/* Load the mailbox registers and wake up MPI RISC. */
+	status = ql_exec_mb_cmd(qdev, mbcp);
+	if (status)
+		goto end;
+
+
+	/* If we're generating a system error, then there's nothing
+	 * to wait for.
+	 */
+	if (mbcp->mbox_in[0] == MB_CMD_MAKE_SYS_ERR)
+		goto end;
+
+	/* Wait for the command to complete. We loop
+	 * here because some AEN might arrive while
+	 * we're waiting for the mailbox command to
+	 * complete. If more than 5 arrive then we can
+	 * assume something is wrong. */
+	count = 5;
+	do {
+		/* Wait for the interrupt to come in. */
+		status = ql_wait_mbx_cmd_cmplt(qdev);
+		if (status)
+			goto end;
+
+		/* Process the event.  If it's an AEN, it
+		 * will be handled in-line or a worker
+		 * will be spawned. If it's our completion
+		 * we will catch it below.
+		 */
+		status = ql_mpi_handler(qdev, mbcp);
+		if (status)
+			goto end;
+
+		/* It's either the completion for our mailbox
+		 * command complete or an AEN.  If it's our
+		 * completion then get out.
+		 */
+		if (((mbcp->mbox_out[0] & 0x0000f000) ==
+					MB_CMD_STS_GOOD) ||
+			((mbcp->mbox_out[0] & 0x0000f000) ==
+					MB_CMD_STS_INTRMDT))
+			break;
+	} while (--count);
+
+	if (!count) {
+		QPRINTK(qdev, DRV, ERR,
+			"Timed out waiting for mailbox complete.\n");
+		status = -ETIMEDOUT;
+		goto end;
 	}
-	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. */
+
+	/* Now we can clear the interrupt condition
+	 * and look at our status.
+	 */
 	ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT);
+
+	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;
+	}
+end:
+	mutex_unlock(&qdev->mpi_mutex);
+	/* End polled mode for MPI */
+	ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16) | INTR_MASK_PI);
+	return status;
 }
 
-void ql_mpi_work(struct work_struct *work)
+/* Get functional state for MPI firmware.
+ * Returns zero on success.
+ */
+int ql_mb_get_fw_state(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 = 2;
+
+	mbcp->mbox_in[0] = MB_CMD_GET_FW_STATE;
+
+	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 Firmware State.\n");
+		status = -EIO;
+	}
+
+	/* If bit zero is set in mbx 1 then the firmware is
+	 * running, but not initialized.  This should never
+	 * happen.
+	 */
+	if (mbcp->mbox_out[1] & 1) {
+		QPRINTK(qdev, DRV, ERR,
+			"Firmware waiting for initialization.\n");
+		status = -EIO;
+	}
+
+	return status;
+}
+
+/* Send and ACK mailbox command to the firmware to
+ * let it continue with the change.
+ */
+int ql_mb_idc_ack(struct ql_adapter *qdev)
 {
-	struct ql_adapter *qdev =
-	    container_of(work, struct ql_adapter, mpi_work.work);
 	struct mbox_params mbc;
 	struct mbox_params *mbcp = &mbc;
+	int status = 0;
+
+	memset(mbcp, 0, sizeof(struct mbox_params));
+
+	mbcp->in_count = 5;
 	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);
-		}
+	mbcp->mbox_in[0] = MB_CMD_IDC_ACK;
+	mbcp->mbox_in[1] = qdev->idc_mbc.mbox_out[1];
+	mbcp->mbox_in[2] = qdev->idc_mbc.mbox_out[2];
+	mbcp->mbox_in[3] = qdev->idc_mbc.mbox_out[3];
+	mbcp->mbox_in[4] = qdev->idc_mbc.mbox_out[4];
 
-		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);
+	status = ql_mailbox_command(qdev, mbcp);
+	if (status)
+		return status;
+
+	if (mbcp->mbox_out[0] != MB_CMD_STS_GOOD) {
+		QPRINTK(qdev, DRV, ERR,
+			"Failed IDC ACK send.\n");
+		status = -EIO;
+	}
+	return status;
+}
+
+/* Get link settings and maximum frame size settings
+ * for the current port.
+ * 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;
+}
+
+/* Get link settings and maximum frame size settings
+ * for the current port.
+ * Most likely will block.
+ */
+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, DEBUG,
+			"Passed Get Port Configuration.\n");
+		qdev->link_config = mbcp->mbox_out[1];
+		qdev->max_frame_size = mbcp->mbox_out[2];
+	}
+	return status;
+}
+
+/* IDC - Inter Device Communication...
+ * Some firmware commands require consent of adjacent FCOE
+ * function.  This function waits for the OK, or a
+ * counter-request for a little more time.i
+ * The firmware will complete the request if the other
+ * function doesn't respond.
+ */
+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;
-		case MB_CMD_STS_GOOD:
+		}
+		/* 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;
-		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);
+		} else {
+			QPRINTK(qdev, DRV, ERR,
+				"IDC: Invalid State 0x%.04x.\n",
+				mbcp->mbox_out[0]);
+			status = -EIO;
 			break;
 		}
+	} while (wait_time);
+
+	return status;
+}
+
+/* API called in work thread context to set new TX/RX
+ * maximum frame size values to match MTU.
+ */
+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.
+ */
+
+/* This thread gets the maximum TX and RX frame size values
+ * from the firmware and, if necessary, changes them to match
+ * the MTU setting.
+ */
+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;
+}
+
+/* Process an inter-device request.  This is issues by
+ * the firmware in response to another function requesting
+ * a change to the port. We set a flag to indicate a change
+ * has been made and then send a mailbox command ACKing
+ * the change request.
+ */
+void ql_mpi_idc_work(struct work_struct *work)
+{
+	struct ql_adapter *qdev =
+	    container_of(work, struct ql_adapter, mpi_idc_work.work);
+	int status;
+	struct mbox_params *mbcp = &qdev->idc_mbc;
+	u32 aen;
+
+	aen = mbcp->mbox_out[1] >> 16;
+
+	switch (aen) {
+	default:
+		QPRINTK(qdev, DRV, ERR,
+			"Bug: Unhandled IDC action.\n");
+		break;
+	case MB_CMD_PORT_RESET:
+	case MB_CMD_SET_PORT_CFG:
+	case MB_CMD_STOP_FW:
+		netif_carrier_off(qdev->ndev);
+		/* Signal the resulting link up AEN
+		 * that the frame routing and mac addr
+		 * needs to be set.
+		 * */
+		set_bit(QL_CAM_RT_SET, &qdev->flags);
+		status = ql_mb_idc_ack(qdev);
+		if (status) {
+			QPRINTK(qdev, DRV, ERR,
+			"Bug: No pending IDC!\n");
+		}
 	}
+}
+
+void ql_mpi_work(struct work_struct *work)
+{
+	struct ql_adapter *qdev =
+	    container_of(work, struct ql_adapter, mpi_work.work);
+	struct mbox_params mbc;
+	struct mbox_params *mbcp = &mbc;
+
+	mutex_lock(&qdev->mpi_mutex);
+
+	while (ql_read32(qdev, STS) & STS_PI) {
+		memset(mbcp, 0, sizeof(struct mbox_params));
+		mbcp->out_count = 1;
+		ql_mpi_handler(qdev, mbcp);
+	}
+
+	mutex_unlock(&qdev->mpi_mutex);
 	ql_enable_completion_interrupt(qdev, 0);
 }
 
@@ -142,9 +823,8 @@ void ql_mpi_reset_work(struct work_struct *work)
 {
 	struct ql_adapter *qdev =
 	    container_of(work, struct ql_adapter, mpi_reset_work.work);
-	QPRINTK(qdev, DRV, ERR,
-		"Enter, qdev = %p..\n", qdev);
-	ql_write32(qdev, CSR, CSR_CMD_SET_RST);
-	msleep(50);
-	ql_write32(qdev, CSR, CSR_CMD_CLR_RST);
+	cancel_delayed_work_sync(&qdev->mpi_work);
+	cancel_delayed_work_sync(&qdev->mpi_port_cfg_work);
+	cancel_delayed_work_sync(&qdev->mpi_idc_work);
+	ql_soft_reset_mpi_risc(qdev);
 }