/* 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
* parameters, 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;
}
static void ql_link_down(struct ql_adapter *qdev, struct mbox_params *mbcp)
{
int status;
mbcp->out_count = 3;
status = ql_get_mb_sts(qdev, mbcp);
if (status)
QPRINTK(qdev, DRV, ERR, "Link down AEN broken!\n");
ql_link_off(qdev);
}
static void ql_link_down(struct ql_adapter *qdev, struct mbox_params *mbcp)
{
int status;
mbcp->out_count = 3;
status = ql_get_mb_sts(qdev, mbcp);
if (status)
netif_err(qdev, drv, qdev->ndev, "Link down AEN broken!\n");
ql_link_off(qdev);
}
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_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)
netif_err(qdev, drv, qdev->ndev, "SFP out AEN broken!\n");
else
netif_err(qdev, drv, qdev->ndev, "SFP removal detected.\n");
return status;
}
static void ql_link_up(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,
"%s: Could not get mailbox status.\n", __func__);
return;
}
qdev->link_status = mbcp->mbox_out[1];
QPRINTK(qdev, DRV, ERR, "Link Up.\n");
/* 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);
}
/* 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);
}
ql_link_on(qdev);
}
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");
} 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");
}
}
/* 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_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) {
netif_err(qdev, drv, qdev->ndev, "Firmware did not initialize!\n");
} else {
netif_err(qdev, drv, qdev->ndev, "Firmware Revision = 0x%.08x.\n",
mbcp->mbox_out[1]);
qdev->fw_rev_id = mbcp->mbox_out[1];
status = ql_cam_route_initialize(qdev);
if (status)
netif_err(qdev, ifup, qdev->ndev,
"Failed to init CAM/Routing tables.\n");
}
}
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]);
}
return 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
* parameters, 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
* parameters 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;
case AEN_DCBX_CHG:
/* Need to support AEN 8110 */
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);
/* Restore the original mailbox count to
* what the caller asked for. This can get
* changed when a mailbox command is waiting
* for a response and an AEN arrives and
* is handled.
* */
mbcp->out_count = orig_count;
return status;
}
