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#include "qlge.h"
int ql_read_mpi_reg(struct ql_adapter *qdev, u32 reg, u32 *data)
{
int status;
/* wait for reg to come ready */
status = ql_wait_reg_rdy(qdev, PROC_ADDR, PROC_ADDR_RDY, PROC_ADDR_ERR);
if (status)
goto exit;
/* set up for reg read */
ql_write32(qdev, PROC_ADDR, reg | PROC_ADDR_R);
/* wait for reg to come ready */
status = ql_wait_reg_rdy(qdev, PROC_ADDR, PROC_ADDR_RDY, PROC_ADDR_ERR);
if (status)
goto exit;
/* get the data */
*data = ql_read32(qdev, PROC_DATA);
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;
status = ql_sem_spinlock(qdev, SEM_PROC_REG_MASK);
if (status)
return -EBUSY;
for (i = 0; i < mbcp->out_count; i++) {
status =
ql_read_mpi_reg(qdev, qdev->mailbox_out + i,
&mbcp->mbox_out[i]);
if (status) {
QPRINTK(qdev, DRV, ERR, "Failed mailbox read.\n");
break;
}
}
ql_sem_unlock(qdev, SEM_PROC_REG_MASK); /* does flush too */
return status;
}
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;
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);
}
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)
{
mbcp->out_count = 3;
if (ql_get_mb_sts(qdev, mbcp)) {
QPRINTK(qdev, DRV, ERR, "Firmware did not initialize!\n");
goto exit;
}
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);
}
static void ql_init_fw_done(struct ql_adapter *qdev, struct mbox_params *mbcp)
{
mbcp->out_count = 2;
if (ql_get_mb_sts(qdev, mbcp)) {
QPRINTK(qdev, DRV, ERR, "Firmware did not initialize!\n");
goto exit;
}
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. */
ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT);
}
/* 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 MB_CMD_STS_GOOD:
break;
case AEN_FW_INIT_FAIL:
case AEN_SYS_ERR:
case MB_CMD_STS_ERR:
ql_queue_fw_error(qdev);
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)
{
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);
}
void ql_mpi_reset_work(struct work_struct *work)
{
struct ql_adapter *qdev =
container_of(work, struct ql_adapter, mpi_reset_work.work);
ql_soft_reset_mpi_risc(qdev);
}
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