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path: root/drivers/net/qlge/qlge_mpi.c
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Diffstat (limited to 'drivers/net/qlge/qlge_mpi.c')
-rw-r--r--drivers/net/qlge/qlge_mpi.c835
1 files changed, 770 insertions, 65 deletions
diff --git a/drivers/net/qlge/qlge_mpi.c b/drivers/net/qlge/qlge_mpi.c
index fa31891b6e62..9f81b797f10b 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 +85,762 @@ 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)) {
- QPRINTK(qdev, DRV, ERR, "Firmware did not initialize!\n");
- goto exit;
- }
+ 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 int ql_aen_lost(struct ql_adapter *qdev, struct mbox_params *mbcp)
+{
+ int status;
+
+ mbcp->out_count = 6;
+
+ status = ql_get_mb_sts(qdev, mbcp);
+ if (status)
+ QPRINTK(qdev, DRV, ERR, "Lost AEN broken!\n");
+ else {
+ int i;
+ QPRINTK(qdev, DRV, ERR, "Lost AEN detected.\n");
+ for (i = 0; i < mbcp->out_count; i++)
+ QPRINTK(qdev, DRV, ERR, "mbox_out[%d] = 0x%.08x.\n",
+ i, mbcp->mbox_out[i]);
- if (netif_carrier_ok(qdev->ndev)) {
- QPRINTK(qdev, LINK, INFO, "Link is Down.\n");
- netif_carrier_off(qdev->ndev);
- netif_stop_queue(qdev->ndev);
}
- 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);
+
+ return status;
}
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)) {
+ 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");
}
- 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;
+ 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;
+ }
+
+ 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;
+
+ case AEN_AEN_LOST:
+ ql_aen_lost(qdev, mbcp);
+ 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;
}
-void ql_mpi_work(struct work_struct *work)
+/* 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)
+{
+ int status, count;
+
+ 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;
+ }
+
+ /* 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;
+}
+
+/* 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 +848,8 @@ 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);
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.