3 static void ql_display_mb_sts(struct ql_adapter *qdev,
4 struct mbox_params *mbcp)
7 static char *err_sts[] = {
9 "Command Not Supported",
10 "Host Interface Error",
12 "Unused Completion Status",
14 "Command Parameter Error"};
16 QPRINTK(qdev, DRV, DEBUG, "%s.\n",
17 err_sts[mbcp->mbox_out[0] & 0x0000000f]);
18 for (i = 0; i < mbcp->out_count; i++)
19 QPRINTK(qdev, DRV, DEBUG, "mbox_out[%d] = 0x%.08x.\n",
20 i, mbcp->mbox_out[i]);
23 int ql_read_mpi_reg(struct ql_adapter *qdev, u32 reg, u32 *data)
26 /* wait for reg to come ready */
27 status = ql_wait_reg_rdy(qdev, PROC_ADDR, PROC_ADDR_RDY, PROC_ADDR_ERR);
30 /* set up for reg read */
31 ql_write32(qdev, PROC_ADDR, reg | PROC_ADDR_R);
32 /* wait for reg to come ready */
33 status = ql_wait_reg_rdy(qdev, PROC_ADDR, PROC_ADDR_RDY, PROC_ADDR_ERR);
37 *data = ql_read32(qdev, PROC_DATA);
42 int ql_write_mpi_reg(struct ql_adapter *qdev, u32 reg, u32 data)
45 /* wait for reg to come ready */
46 status = ql_wait_reg_rdy(qdev, PROC_ADDR, PROC_ADDR_RDY, PROC_ADDR_ERR);
49 /* write the data to the data reg */
50 ql_write32(qdev, PROC_DATA, data);
51 /* trigger the write */
52 ql_write32(qdev, PROC_ADDR, reg);
53 /* wait for reg to come ready */
54 status = ql_wait_reg_rdy(qdev, PROC_ADDR, PROC_ADDR_RDY, PROC_ADDR_ERR);
61 int ql_soft_reset_mpi_risc(struct ql_adapter *qdev)
64 status = ql_write_mpi_reg(qdev, 0x00001010, 1);
68 static int ql_get_mb_sts(struct ql_adapter *qdev, struct mbox_params *mbcp)
72 status = ql_sem_spinlock(qdev, SEM_PROC_REG_MASK);
75 for (i = 0; i < mbcp->out_count; i++) {
77 ql_read_mpi_reg(qdev, qdev->mailbox_out + i,
80 QPRINTK(qdev, DRV, ERR, "Failed mailbox read.\n");
84 ql_sem_unlock(qdev, SEM_PROC_REG_MASK); /* does flush too */
88 /* Wait for a single mailbox command to complete.
89 * Returns zero on success.
91 static int ql_wait_mbx_cmd_cmplt(struct ql_adapter *qdev)
93 int count = 50; /* TODO: arbitrary for now. */
97 value = ql_read32(qdev, STS);
100 udelay(UDELAY_DELAY); /* 10us */
105 /* Execute a single mailbox command.
106 * Caller must hold PROC_ADDR semaphore.
108 static int ql_exec_mb_cmd(struct ql_adapter *qdev, struct mbox_params *mbcp)
113 * Make sure there's nothing pending.
114 * This shouldn't happen.
116 if (ql_read32(qdev, CSR) & CSR_HRI)
119 status = ql_sem_spinlock(qdev, SEM_PROC_REG_MASK);
124 * Fill the outbound mailboxes.
126 for (i = 0; i < mbcp->in_count; i++) {
127 status = ql_write_mpi_reg(qdev, qdev->mailbox_in + i,
133 * Wake up the MPI firmware.
135 ql_write32(qdev, CSR, CSR_CMD_SET_H2R_INT);
137 ql_sem_unlock(qdev, SEM_PROC_REG_MASK);
141 /* We are being asked by firmware to accept
142 * a change to the port. This is only
143 * a change to max frame sizes (Tx/Rx), pause
144 * paramters, or loopback mode. We wake up a worker
145 * to handler processing this since a mailbox command
146 * will need to be sent to ACK the request.
148 static int ql_idc_req_aen(struct ql_adapter *qdev)
151 struct mbox_params *mbcp = &qdev->idc_mbc;
153 QPRINTK(qdev, DRV, ERR, "Enter!\n");
154 /* Get the status data and start up a thread to
155 * handle the request.
157 mbcp = &qdev->idc_mbc;
159 status = ql_get_mb_sts(qdev, mbcp);
161 QPRINTK(qdev, DRV, ERR,
162 "Could not read MPI, resetting ASIC!\n");
163 ql_queue_asic_error(qdev);
165 /* Begin polled mode early so
166 * we don't get another interrupt
167 * when we leave mpi_worker.
169 ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16));
170 queue_delayed_work(qdev->workqueue, &qdev->mpi_idc_work, 0);
175 /* Process an inter-device event completion.
176 * If good, signal the caller's completion.
178 static int ql_idc_cmplt_aen(struct ql_adapter *qdev)
181 struct mbox_params *mbcp = &qdev->idc_mbc;
183 status = ql_get_mb_sts(qdev, mbcp);
185 QPRINTK(qdev, DRV, ERR,
186 "Could not read MPI, resetting RISC!\n");
187 ql_queue_fw_error(qdev);
189 /* Wake up the sleeping mpi_idc_work thread that is
190 * waiting for this event.
192 complete(&qdev->ide_completion);
197 static void ql_link_up(struct ql_adapter *qdev, struct mbox_params *mbcp)
202 status = ql_get_mb_sts(qdev, mbcp);
204 QPRINTK(qdev, DRV, ERR,
205 "%s: Could not get mailbox status.\n", __func__);
209 qdev->link_status = mbcp->mbox_out[1];
210 QPRINTK(qdev, DRV, ERR, "Link Up.\n");
212 /* If we're coming back from an IDC event
213 * then set up the CAM and frame routing.
215 if (test_bit(QL_CAM_RT_SET, &qdev->flags)) {
216 status = ql_cam_route_initialize(qdev);
218 QPRINTK(qdev, IFUP, ERR,
219 "Failed to init CAM/Routing tables.\n");
222 clear_bit(QL_CAM_RT_SET, &qdev->flags);
225 /* Queue up a worker to check the frame
226 * size information, and fix it if it's not
229 if (!test_bit(QL_PORT_CFG, &qdev->flags)) {
230 QPRINTK(qdev, DRV, ERR, "Queue Port Config Worker!\n");
231 set_bit(QL_PORT_CFG, &qdev->flags);
232 /* Begin polled mode early so
233 * we don't get another interrupt
234 * when we leave mpi_worker dpc.
236 ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16));
237 queue_delayed_work(qdev->workqueue,
238 &qdev->mpi_port_cfg_work, 0);
241 netif_carrier_on(qdev->ndev);
244 static void ql_link_down(struct ql_adapter *qdev, struct mbox_params *mbcp)
250 status = ql_get_mb_sts(qdev, mbcp);
252 QPRINTK(qdev, DRV, ERR, "Link down AEN broken!\n");
254 netif_carrier_off(qdev->ndev);
257 static int ql_sfp_in(struct ql_adapter *qdev, struct mbox_params *mbcp)
263 status = ql_get_mb_sts(qdev, mbcp);
265 QPRINTK(qdev, DRV, ERR, "SFP in AEN broken!\n");
267 QPRINTK(qdev, DRV, ERR, "SFP insertion detected.\n");
272 static int ql_sfp_out(struct ql_adapter *qdev, struct mbox_params *mbcp)
278 status = ql_get_mb_sts(qdev, mbcp);
280 QPRINTK(qdev, DRV, ERR, "SFP out AEN broken!\n");
282 QPRINTK(qdev, DRV, ERR, "SFP removal detected.\n");
287 static int ql_aen_lost(struct ql_adapter *qdev, struct mbox_params *mbcp)
293 status = ql_get_mb_sts(qdev, mbcp);
295 QPRINTK(qdev, DRV, ERR, "Lost AEN broken!\n");
298 QPRINTK(qdev, DRV, ERR, "Lost AEN detected.\n");
299 for (i = 0; i < mbcp->out_count; i++)
300 QPRINTK(qdev, DRV, ERR, "mbox_out[%d] = 0x%.08x.\n",
301 i, mbcp->mbox_out[i]);
308 static void ql_init_fw_done(struct ql_adapter *qdev, struct mbox_params *mbcp)
314 status = ql_get_mb_sts(qdev, mbcp);
316 QPRINTK(qdev, DRV, ERR, "Firmware did not initialize!\n");
318 QPRINTK(qdev, DRV, ERR, "Firmware Revision = 0x%.08x.\n",
320 status = ql_cam_route_initialize(qdev);
322 QPRINTK(qdev, IFUP, ERR,
323 "Failed to init CAM/Routing tables.\n");
327 /* Process an async event and clear it unless it's an
329 * This can get called iteratively from the mpi_work thread
330 * when events arrive via an interrupt.
331 * It also gets called when a mailbox command is polling for
332 * it's completion. */
333 static int ql_mpi_handler(struct ql_adapter *qdev, struct mbox_params *mbcp)
336 int orig_count = mbcp->out_count;
338 /* Just get mailbox zero for now. */
340 status = ql_get_mb_sts(qdev, mbcp);
342 QPRINTK(qdev, DRV, ERR,
343 "Could not read MPI, resetting ASIC!\n");
344 ql_queue_asic_error(qdev);
348 switch (mbcp->mbox_out[0]) {
350 /* This case is only active when we arrive here
351 * as a result of issuing a mailbox command to
354 case MB_CMD_STS_INTRMDT:
355 case MB_CMD_STS_GOOD:
356 case MB_CMD_STS_INVLD_CMD:
357 case MB_CMD_STS_XFC_ERR:
358 case MB_CMD_STS_CSUM_ERR:
360 case MB_CMD_STS_PARAM_ERR:
361 /* We can only get mailbox status if we're polling from an
362 * unfinished command. Get the rest of the status data and
363 * return back to the caller.
364 * We only end up here when we're polling for a mailbox
365 * command completion.
367 mbcp->out_count = orig_count;
368 status = ql_get_mb_sts(qdev, mbcp);
371 /* We are being asked by firmware to accept
372 * a change to the port. This is only
373 * a change to max frame sizes (Tx/Rx), pause
374 * paramters, or loopback mode.
377 status = ql_idc_req_aen(qdev);
380 /* Process and inbound IDC event.
381 * This will happen when we're trying to
382 * change tx/rx max frame size, change pause
383 * paramters or loopback mode.
387 status = ql_idc_cmplt_aen(qdev);
391 ql_link_up(qdev, mbcp);
395 ql_link_down(qdev, mbcp);
398 case AEN_FW_INIT_DONE:
399 /* If we're in process on executing the firmware,
400 * then convert the status to normal mailbox status.
402 if (mbcp->mbox_in[0] == MB_CMD_EX_FW) {
403 mbcp->out_count = orig_count;
404 status = ql_get_mb_sts(qdev, mbcp);
405 mbcp->mbox_out[0] = MB_CMD_STS_GOOD;
408 ql_init_fw_done(qdev, mbcp);
412 ql_sfp_in(qdev, mbcp);
415 case AEN_AEN_SFP_OUT:
416 ql_sfp_out(qdev, mbcp);
419 /* This event can arrive at boot time or after an
420 * MPI reset if the firmware failed to initialize.
422 case AEN_FW_INIT_FAIL:
423 /* If we're in process on executing the firmware,
424 * then convert the status to normal mailbox status.
426 if (mbcp->mbox_in[0] == MB_CMD_EX_FW) {
427 mbcp->out_count = orig_count;
428 status = ql_get_mb_sts(qdev, mbcp);
429 mbcp->mbox_out[0] = MB_CMD_STS_ERR;
432 QPRINTK(qdev, DRV, ERR,
433 "Firmware initialization failed.\n");
435 ql_queue_fw_error(qdev);
439 QPRINTK(qdev, DRV, ERR,
441 ql_queue_fw_error(qdev);
446 ql_aen_lost(qdev, mbcp);
450 QPRINTK(qdev, DRV, ERR,
451 "Unsupported AE %.08x.\n", mbcp->mbox_out[0]);
452 /* Clear the MPI firmware status. */
455 ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT);
459 /* Execute a single mailbox command.
460 * mbcp is a pointer to an array of u32. Each
461 * element in the array contains the value for it's
462 * respective mailbox register.
464 static int ql_mailbox_command(struct ql_adapter *qdev, struct mbox_params *mbcp)
468 mutex_lock(&qdev->mpi_mutex);
470 /* Begin polled mode for MPI */
471 ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16));
473 /* Load the mailbox registers and wake up MPI RISC. */
474 status = ql_exec_mb_cmd(qdev, mbcp);
479 /* If we're generating a system error, then there's nothing
482 if (mbcp->mbox_in[0] == MB_CMD_MAKE_SYS_ERR)
485 /* Wait for the command to complete. We loop
486 * here because some AEN might arrive while
487 * we're waiting for the mailbox command to
488 * complete. If more than 5 arrive then we can
489 * assume something is wrong. */
492 /* Wait for the interrupt to come in. */
493 status = ql_wait_mbx_cmd_cmplt(qdev);
497 /* Process the event. If it's an AEN, it
498 * will be handled in-line or a worker
499 * will be spawned. If it's our completion
500 * we will catch it below.
502 status = ql_mpi_handler(qdev, mbcp);
506 /* It's either the completion for our mailbox
507 * command complete or an AEN. If it's our
508 * completion then get out.
510 if (((mbcp->mbox_out[0] & 0x0000f000) ==
512 ((mbcp->mbox_out[0] & 0x0000f000) ==
518 QPRINTK(qdev, DRV, ERR,
519 "Timed out waiting for mailbox complete.\n");
524 /* Now we can clear the interrupt condition
525 * and look at our status.
527 ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT);
529 if (((mbcp->mbox_out[0] & 0x0000f000) !=
531 ((mbcp->mbox_out[0] & 0x0000f000) !=
532 MB_CMD_STS_INTRMDT)) {
533 ql_display_mb_sts(qdev, mbcp);
537 mutex_unlock(&qdev->mpi_mutex);
538 /* End polled mode for MPI */
539 ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16) | INTR_MASK_PI);
543 /* Get functional state for MPI firmware.
544 * Returns zero on success.
546 int ql_mb_get_fw_state(struct ql_adapter *qdev)
548 struct mbox_params mbc;
549 struct mbox_params *mbcp = &mbc;
552 memset(mbcp, 0, sizeof(struct mbox_params));
557 mbcp->mbox_in[0] = MB_CMD_GET_FW_STATE;
559 status = ql_mailbox_command(qdev, mbcp);
563 if (mbcp->mbox_out[0] != MB_CMD_STS_GOOD) {
564 QPRINTK(qdev, DRV, ERR,
565 "Failed Get Firmware State.\n");
569 /* If bit zero is set in mbx 1 then the firmware is
570 * running, but not initialized. This should never
573 if (mbcp->mbox_out[1] & 1) {
574 QPRINTK(qdev, DRV, ERR,
575 "Firmware waiting for initialization.\n");
582 /* Send and ACK mailbox command to the firmware to
583 * let it continue with the change.
585 int ql_mb_idc_ack(struct ql_adapter *qdev)
587 struct mbox_params mbc;
588 struct mbox_params *mbcp = &mbc;
591 memset(mbcp, 0, sizeof(struct mbox_params));
596 mbcp->mbox_in[0] = MB_CMD_IDC_ACK;
597 mbcp->mbox_in[1] = qdev->idc_mbc.mbox_out[1];
598 mbcp->mbox_in[2] = qdev->idc_mbc.mbox_out[2];
599 mbcp->mbox_in[3] = qdev->idc_mbc.mbox_out[3];
600 mbcp->mbox_in[4] = qdev->idc_mbc.mbox_out[4];
602 status = ql_mailbox_command(qdev, mbcp);
606 if (mbcp->mbox_out[0] != MB_CMD_STS_GOOD) {
607 QPRINTK(qdev, DRV, ERR,
608 "Failed IDC ACK send.\n");
614 /* Get link settings and maximum frame size settings
615 * for the current port.
616 * Most likely will block.
618 static int ql_mb_set_port_cfg(struct ql_adapter *qdev)
620 struct mbox_params mbc;
621 struct mbox_params *mbcp = &mbc;
624 memset(mbcp, 0, sizeof(struct mbox_params));
629 mbcp->mbox_in[0] = MB_CMD_SET_PORT_CFG;
630 mbcp->mbox_in[1] = qdev->link_config;
631 mbcp->mbox_in[2] = qdev->max_frame_size;
634 status = ql_mailbox_command(qdev, mbcp);
638 if (mbcp->mbox_out[0] == MB_CMD_STS_INTRMDT) {
639 QPRINTK(qdev, DRV, ERR,
640 "Port Config sent, wait for IDC.\n");
641 } else if (mbcp->mbox_out[0] != MB_CMD_STS_GOOD) {
642 QPRINTK(qdev, DRV, ERR,
643 "Failed Set Port Configuration.\n");
649 /* Get link settings and maximum frame size settings
650 * for the current port.
651 * Most likely will block.
653 static int ql_mb_get_port_cfg(struct ql_adapter *qdev)
655 struct mbox_params mbc;
656 struct mbox_params *mbcp = &mbc;
659 memset(mbcp, 0, sizeof(struct mbox_params));
664 mbcp->mbox_in[0] = MB_CMD_GET_PORT_CFG;
666 status = ql_mailbox_command(qdev, mbcp);
670 if (mbcp->mbox_out[0] != MB_CMD_STS_GOOD) {
671 QPRINTK(qdev, DRV, ERR,
672 "Failed Get Port Configuration.\n");
675 QPRINTK(qdev, DRV, DEBUG,
676 "Passed Get Port Configuration.\n");
677 qdev->link_config = mbcp->mbox_out[1];
678 qdev->max_frame_size = mbcp->mbox_out[2];
683 /* IDC - Inter Device Communication...
684 * Some firmware commands require consent of adjacent FCOE
685 * function. This function waits for the OK, or a
686 * counter-request for a little more time.i
687 * The firmware will complete the request if the other
688 * function doesn't respond.
690 static int ql_idc_wait(struct ql_adapter *qdev)
692 int status = -ETIMEDOUT;
693 long wait_time = 1 * HZ;
694 struct mbox_params *mbcp = &qdev->idc_mbc;
696 /* Wait here for the command to complete
697 * via the IDC process.
700 wait_for_completion_timeout(&qdev->ide_completion,
703 QPRINTK(qdev, DRV, ERR,
707 /* Now examine the response from the IDC process.
708 * We might have a good completion or a request for
711 if (mbcp->mbox_out[0] == AEN_IDC_EXT) {
712 QPRINTK(qdev, DRV, ERR,
713 "IDC Time Extension from function.\n");
714 wait_time += (mbcp->mbox_out[1] >> 8) & 0x0000000f;
715 } else if (mbcp->mbox_out[0] == AEN_IDC_CMPLT) {
716 QPRINTK(qdev, DRV, ERR,
721 QPRINTK(qdev, DRV, ERR,
722 "IDC: Invalid State 0x%.04x.\n",
732 /* API called in work thread context to set new TX/RX
733 * maximum frame size values to match MTU.
735 static int ql_set_port_cfg(struct ql_adapter *qdev)
738 status = ql_mb_set_port_cfg(qdev);
741 status = ql_idc_wait(qdev);
745 /* The following routines are worker threads that process
746 * events that may sleep waiting for completion.
749 /* This thread gets the maximum TX and RX frame size values
750 * from the firmware and, if necessary, changes them to match
753 void ql_mpi_port_cfg_work(struct work_struct *work)
755 struct ql_adapter *qdev =
756 container_of(work, struct ql_adapter, mpi_port_cfg_work.work);
757 struct net_device *ndev = qdev->ndev;
760 status = ql_mb_get_port_cfg(qdev);
762 QPRINTK(qdev, DRV, ERR,
763 "Bug: Failed to get port config data.\n");
767 if (ndev->mtu <= 2500)
769 else if (qdev->link_config & CFG_JUMBO_FRAME_SIZE &&
770 qdev->max_frame_size ==
771 CFG_DEFAULT_MAX_FRAME_SIZE)
774 qdev->link_config |= CFG_JUMBO_FRAME_SIZE;
775 qdev->max_frame_size = CFG_DEFAULT_MAX_FRAME_SIZE;
776 status = ql_set_port_cfg(qdev);
778 QPRINTK(qdev, DRV, ERR,
779 "Bug: Failed to set port config data.\n");
783 clear_bit(QL_PORT_CFG, &qdev->flags);
786 ql_queue_fw_error(qdev);
790 /* Process an inter-device request. This is issues by
791 * the firmware in response to another function requesting
792 * a change to the port. We set a flag to indicate a change
793 * has been made and then send a mailbox command ACKing
794 * the change request.
796 void ql_mpi_idc_work(struct work_struct *work)
798 struct ql_adapter *qdev =
799 container_of(work, struct ql_adapter, mpi_idc_work.work);
801 struct mbox_params *mbcp = &qdev->idc_mbc;
804 aen = mbcp->mbox_out[1] >> 16;
808 QPRINTK(qdev, DRV, ERR,
809 "Bug: Unhandled IDC action.\n");
811 case MB_CMD_PORT_RESET:
812 case MB_CMD_SET_PORT_CFG:
814 netif_carrier_off(qdev->ndev);
815 /* Signal the resulting link up AEN
816 * that the frame routing and mac addr
819 set_bit(QL_CAM_RT_SET, &qdev->flags);
820 status = ql_mb_idc_ack(qdev);
822 QPRINTK(qdev, DRV, ERR,
823 "Bug: No pending IDC!\n");
828 void ql_mpi_work(struct work_struct *work)
830 struct ql_adapter *qdev =
831 container_of(work, struct ql_adapter, mpi_work.work);
832 struct mbox_params mbc;
833 struct mbox_params *mbcp = &mbc;
835 mutex_lock(&qdev->mpi_mutex);
837 while (ql_read32(qdev, STS) & STS_PI) {
838 memset(mbcp, 0, sizeof(struct mbox_params));
840 ql_mpi_handler(qdev, mbcp);
843 mutex_unlock(&qdev->mpi_mutex);
844 ql_enable_completion_interrupt(qdev, 0);
847 void ql_mpi_reset_work(struct work_struct *work)
849 struct ql_adapter *qdev =
850 container_of(work, struct ql_adapter, mpi_reset_work.work);
851 cancel_delayed_work_sync(&qdev->mpi_work);
852 cancel_delayed_work_sync(&qdev->mpi_port_cfg_work);
853 cancel_delayed_work_sync(&qdev->mpi_idc_work);
854 ql_soft_reset_mpi_risc(qdev);