Lines Matching refs:fw
80 #define PRESTERA_LDR_REG_BASE(fw) ((fw)->ldr_regs)
81 #define PRESTERA_LDR_REG_ADDR(fw, reg) (PRESTERA_LDR_REG_BASE(fw) + (reg))
83 /* fw loader registers */
136 /* fw registers */
182 #define PRESTERA_FW_REG_BASE(fw) ((fw)->dev.ctl_regs)
183 #define PRESTERA_FW_REG_ADDR(fw, reg) PRESTERA_FW_REG_BASE((fw)) + (reg)
230 static int prestera_fw_load(struct prestera_fw *fw);
232 static void prestera_fw_write(struct prestera_fw *fw, u32 reg, u32 val)
234 writel(val, PRESTERA_FW_REG_ADDR(fw, reg));
237 static u32 prestera_fw_read(struct prestera_fw *fw, u32 reg)
239 return readl(PRESTERA_FW_REG_ADDR(fw, reg));
242 static u32 prestera_fw_evtq_len(struct prestera_fw *fw, u8 qid)
244 return fw->evt_queue[qid].len;
247 static u32 prestera_fw_evtq_avail(struct prestera_fw *fw, u8 qid)
249 u32 wr_idx = prestera_fw_read(fw, PRESTERA_EVTQ_WR_IDX_REG(qid));
250 u32 rd_idx = prestera_fw_read(fw, PRESTERA_EVTQ_RD_IDX_REG(qid));
252 return CIRC_CNT(wr_idx, rd_idx, prestera_fw_evtq_len(fw, qid));
255 static void prestera_fw_evtq_rd_set(struct prestera_fw *fw,
258 u32 rd_idx = idx & (prestera_fw_evtq_len(fw, qid) - 1);
260 prestera_fw_write(fw, PRESTERA_EVTQ_RD_IDX_REG(qid), rd_idx);
263 static u8 __iomem *prestera_fw_evtq_buf(struct prestera_fw *fw, u8 qid)
265 return fw->evt_queue[qid].addr;
268 static u32 prestera_fw_evtq_read32(struct prestera_fw *fw, u8 qid)
270 u32 rd_idx = prestera_fw_read(fw, PRESTERA_EVTQ_RD_IDX_REG(qid));
273 val = readl(prestera_fw_evtq_buf(fw, qid) + rd_idx);
274 prestera_fw_evtq_rd_set(fw, qid, rd_idx + 4);
278 static ssize_t prestera_fw_evtq_read_buf(struct prestera_fw *fw,
281 u32 idx = prestera_fw_read(fw, PRESTERA_EVTQ_RD_IDX_REG(qid));
282 u8 __iomem *evtq_addr = prestera_fw_evtq_buf(fw, qid);
288 idx = (idx + 4) & (prestera_fw_evtq_len(fw, qid) - 1);
291 prestera_fw_evtq_rd_set(fw, qid, idx);
296 static u8 prestera_fw_evtq_pick(struct prestera_fw *fw)
300 for (qid = 0; qid < fw->evt_qnum; qid++) {
301 if (prestera_fw_evtq_avail(fw, qid) >= 4)
308 static void prestera_fw_evt_ctl_status_set(struct prestera_fw *fw, u32 val)
310 u32 status = prestera_fw_read(fw, PRESTERA_FW_STATUS_REG);
314 prestera_fw_write(fw, PRESTERA_FW_STATUS_REG, status);
319 struct prestera_fw *fw;
323 fw = container_of(work, struct prestera_fw, evt_work);
324 msg = fw->evt_msg;
326 prestera_fw_evt_ctl_status_set(fw, PRESTERA_FW_EVT_CTL_STATUS_OFF);
328 while ((qid = prestera_fw_evtq_pick(fw)) < PRESTERA_EVT_QNUM_MAX) {
332 len = prestera_fw_evtq_read32(fw, qid);
333 idx = prestera_fw_read(fw, PRESTERA_EVTQ_RD_IDX_REG(qid));
335 WARN_ON(prestera_fw_evtq_avail(fw, qid) < len);
338 prestera_fw_evtq_rd_set(fw, qid, idx + len);
342 prestera_fw_evtq_read_buf(fw, qid, msg, len);
344 if (fw->dev.recv_msg)
345 fw->dev.recv_msg(&fw->dev, msg, len);
348 prestera_fw_evt_ctl_status_set(fw, PRESTERA_FW_EVT_CTL_STATUS_ON);
351 static int prestera_fw_wait_reg32(struct prestera_fw *fw, u32 reg, u32 cmp,
354 u8 __iomem *addr = PRESTERA_FW_REG_ADDR(fw, reg);
361 static void prestera_fw_cmdq_lock(struct prestera_fw *fw, u8 qid)
363 mutex_lock(&fw->cmd_queue[qid].cmd_mtx);
366 static void prestera_fw_cmdq_unlock(struct prestera_fw *fw, u8 qid)
368 mutex_unlock(&fw->cmd_queue[qid].cmd_mtx);
371 static u32 prestera_fw_cmdq_len(struct prestera_fw *fw, u8 qid)
373 return fw->cmd_queue[qid].len;
376 static u8 __iomem *prestera_fw_cmdq_buf(struct prestera_fw *fw, u8 qid)
378 return fw->cmd_queue[qid].addr;
381 static int prestera_fw_cmd_send(struct prestera_fw *fw, int qid,
392 if (ALIGN(in_size, 4) > prestera_fw_cmdq_len(fw, qid))
396 err = prestera_fw_wait_reg32(fw, PRESTERA_CMDQ_RCV_CTL_REG(qid), 0, 30);
398 dev_err(fw->dev.dev, "finish reply from FW is timed out\n");
402 prestera_fw_write(fw, PRESTERA_CMDQ_REQ_LEN_REG(qid), in_size);
404 memcpy_toio(prestera_fw_cmdq_buf(fw, qid), in_msg, in_size);
406 prestera_fw_write(fw, PRESTERA_CMDQ_REQ_CTL_REG(qid),
410 err = prestera_fw_wait_reg32(fw, PRESTERA_CMDQ_RCV_CTL_REG(qid),
413 dev_err(fw->dev.dev, "reply from FW is timed out\n");
417 ret_size = prestera_fw_read(fw, PRESTERA_CMDQ_RCV_LEN_REG(qid));
419 dev_err(fw->dev.dev, "ret_size (%u) > out_len(%zu)\n",
426 prestera_fw_cmdq_buf(fw, qid) + in_size, ret_size);
429 prestera_fw_write(fw, PRESTERA_CMDQ_REQ_CTL_REG(qid),
438 struct prestera_fw *fw;
441 fw = container_of(dev, struct prestera_fw, dev);
443 prestera_fw_cmdq_lock(fw, qid);
444 ret = prestera_fw_cmd_send(fw, qid, in_msg, in_size, out_msg, out_size,
446 prestera_fw_cmdq_unlock(fw, qid);
451 static int prestera_fw_init(struct prestera_fw *fw)
457 fw->dev.send_req = prestera_fw_send_req;
458 fw->ldr_regs = fw->dev.ctl_regs;
460 err = prestera_fw_load(fw);
464 err = prestera_fw_wait_reg32(fw, PRESTERA_FW_READY_REG,
468 dev_err(fw->dev.dev, "FW failed to start\n");
472 base = fw->dev.ctl_regs;
474 fw->cmd_mbox = base + prestera_fw_read(fw, PRESTERA_CMD_BUF_OFFS_REG);
475 fw->cmd_mbox_len = prestera_fw_read(fw, PRESTERA_CMD_BUF_LEN_REG);
476 fw->cmd_qnum = prestera_fw_read(fw, PRESTERA_CMD_QNUM_REG);
478 for (qid = 0; qid < fw->cmd_qnum; qid++) {
479 u32 offs = prestera_fw_read(fw, PRESTERA_CMDQ_OFFS_REG(qid));
480 struct prestera_fw_cmdq *cmdq = &fw->cmd_queue[qid];
482 cmdq->len = prestera_fw_read(fw, PRESTERA_CMDQ_LEN_REG(qid));
483 cmdq->addr = fw->cmd_mbox + offs;
487 fw->evt_buf = base + prestera_fw_read(fw, PRESTERA_EVT_BUF_OFFS_REG);
488 fw->evt_qnum = prestera_fw_read(fw, PRESTERA_EVT_QNUM_REG);
489 fw->evt_msg = kmalloc(PRESTERA_MSG_MAX_SIZE, GFP_KERNEL);
490 if (!fw->evt_msg)
493 for (qid = 0; qid < fw->evt_qnum; qid++) {
494 u32 offs = prestera_fw_read(fw, PRESTERA_EVTQ_OFFS_REG(qid));
495 struct prestera_fw_evtq *evtq = &fw->evt_queue[qid];
497 evtq->len = prestera_fw_read(fw, PRESTERA_EVTQ_LEN_REG(qid));
498 evtq->addr = fw->evt_buf + offs;
504 static void prestera_fw_uninit(struct prestera_fw *fw)
506 kfree(fw->evt_msg);
511 struct prestera_fw *fw = dev_id;
513 if (prestera_fw_read(fw, PRESTERA_RX_STATUS_REG)) {
514 prestera_fw_write(fw, PRESTERA_RX_STATUS_REG, 0);
516 if (fw->dev.recv_pkt)
517 fw->dev.recv_pkt(&fw->dev);
520 queue_work(fw->wq, &fw->evt_work);
525 static void prestera_ldr_write(struct prestera_fw *fw, u32 reg, u32 val)
527 writel(val, PRESTERA_LDR_REG_ADDR(fw, reg));
530 static u32 prestera_ldr_read(struct prestera_fw *fw, u32 reg)
532 return readl(PRESTERA_LDR_REG_ADDR(fw, reg));
535 static int prestera_ldr_wait_reg32(struct prestera_fw *fw,
538 u8 __iomem *addr = PRESTERA_LDR_REG_ADDR(fw, reg);
545 static u32 prestera_ldr_wait_buf(struct prestera_fw *fw, size_t len)
547 u8 __iomem *addr = PRESTERA_LDR_REG_ADDR(fw, PRESTERA_LDR_BUF_RD_REG);
548 u32 buf_len = fw->ldr_buf_len;
549 u32 wr_idx = fw->ldr_wr_idx;
557 static int prestera_ldr_wait_dl_finish(struct prestera_fw *fw)
559 u8 __iomem *addr = PRESTERA_LDR_REG_ADDR(fw, PRESTERA_LDR_STATUS_REG);
567 dev_err(fw->dev.dev, "Timeout to load FW img [state=%d]",
568 prestera_ldr_read(fw, PRESTERA_LDR_STATUS_REG));
575 static void prestera_ldr_wr_idx_move(struct prestera_fw *fw, unsigned int n)
577 fw->ldr_wr_idx = (fw->ldr_wr_idx + (n)) & (fw->ldr_buf_len - 1);
580 static void prestera_ldr_wr_idx_commit(struct prestera_fw *fw)
582 prestera_ldr_write(fw, PRESTERA_LDR_BUF_WR_REG, fw->ldr_wr_idx);
585 static u8 __iomem *prestera_ldr_wr_ptr(struct prestera_fw *fw)
587 return fw->ldr_ring_buf + fw->ldr_wr_idx;
590 static int prestera_ldr_send(struct prestera_fw *fw, const u8 *buf, size_t len)
595 err = prestera_ldr_wait_buf(fw, len);
597 dev_err(fw->dev.dev, "failed wait for sending firmware\n");
602 writel_relaxed(*(u32 *)(buf + i), prestera_ldr_wr_ptr(fw));
603 prestera_ldr_wr_idx_move(fw, 4);
606 prestera_ldr_wr_idx_commit(fw);
610 static int prestera_ldr_fw_send(struct prestera_fw *fw,
617 err = prestera_ldr_wait_reg32(fw, PRESTERA_LDR_STATUS_REG,
621 dev_err(fw->dev.dev, "Loader is not ready to load image\n");
629 err = prestera_ldr_send(fw, img + pos, PRESTERA_FW_BLK_SZ);
635 err = prestera_ldr_send(fw, img + pos, fw_size - pos);
640 err = prestera_ldr_wait_dl_finish(fw);
644 status = prestera_ldr_read(fw, PRESTERA_LDR_STATUS_REG);
648 dev_err(fw->dev.dev, "FW img has bad CRC\n");
651 dev_err(fw->dev.dev, "Loader has no enough mem\n");
668 static int prestera_fw_rev_check(struct prestera_fw *fw)
670 struct prestera_fw_rev *rev = &fw->dev.fw_rev;
672 if (rev->maj == fw->rev_supp.maj && rev->min >= fw->rev_supp.min)
675 dev_err(fw->dev.dev, "Driver supports FW version only '%u.%u.x'",
676 fw->rev_supp.maj, fw->rev_supp.min);
681 static int prestera_fw_hdr_parse(struct prestera_fw *fw)
683 struct prestera_fw_rev *rev = &fw->dev.fw_rev;
687 hdr = (struct prestera_fw_header *)fw->bin->data;
691 dev_err(fw->dev.dev, "FW img hdr magic is invalid");
697 dev_info(fw->dev.dev, "FW version '%u.%u.%u'\n",
700 return prestera_fw_rev_check(fw);
703 static const char *prestera_fw_path_fmt_get(struct prestera_fw *fw)
705 switch (fw->pci_dev->device) {
717 static int prestera_fw_get(struct prestera_fw *fw)
725 snprintf(fw_path, sizeof(fw_path), prestera_fw_path_fmt_get(fw),
728 err = request_firmware_direct(&fw->bin, fw_path, fw->dev.dev);
735 dev_warn(fw->dev.dev,
741 dev_err(fw->dev.dev, "failed to request previous firmware: %s\n",
747 dev_info(fw->dev.dev, "Loading %s ...", fw_path);
749 fw->rev_supp.maj = ver_maj;
750 fw->rev_supp.min = ver_min;
751 fw->rev_supp.sub = 0;
756 static void prestera_fw_put(struct prestera_fw *fw)
758 release_firmware(fw->bin);
761 static int prestera_fw_load(struct prestera_fw *fw)
766 err = prestera_ldr_wait_reg32(fw, PRESTERA_LDR_READY_REG,
770 dev_err(fw->dev.dev, "waiting for FW loader is timed out");
774 fw->ldr_ring_buf = fw->ldr_regs +
775 prestera_ldr_read(fw, PRESTERA_LDR_BUF_OFFS_REG);
777 fw->ldr_buf_len =
778 prestera_ldr_read(fw, PRESTERA_LDR_BUF_SIZE_REG);
780 fw->ldr_wr_idx = 0;
782 err = prestera_fw_get(fw);
786 err = prestera_fw_hdr_parse(fw);
788 dev_err(fw->dev.dev, "FW image header is invalid\n");
792 prestera_ldr_write(fw, PRESTERA_LDR_IMG_SIZE_REG, fw->bin->size - hlen);
793 prestera_ldr_write(fw, PRESTERA_LDR_CTL_REG, PRESTERA_LDR_CTL_DL_START);
795 err = prestera_ldr_fw_send(fw, fw->bin->data + hlen,
796 fw->bin->size - hlen);
799 prestera_fw_put(fw);
839 struct prestera_fw *fw;
882 fw = devm_kzalloc(&pdev->dev, sizeof(*fw), GFP_KERNEL);
883 if (!fw) {
888 fw->pci_dev = pdev;
889 fw->dev.ctl_regs = mem_addr;
890 fw->dev.pp_regs = pp_addr;
891 fw->dev.dev = &pdev->dev;
893 pci_set_drvdata(pdev, fw);
895 err = prestera_fw_init(fw);
899 dev_info(fw->dev.dev, "Prestera FW is ready\n");
901 fw->wq = alloc_workqueue("prestera_fw_wq", WQ_HIGHPRI, 1);
902 if (!fw->wq) {
907 INIT_WORK(&fw->evt_work, prestera_fw_evt_work_fn);
916 0, driver_name, fw);
922 err = prestera_device_register(&fw->dev);
929 free_irq(pci_irq_vector(pdev, 0), fw);
933 destroy_workqueue(fw->wq);
935 prestera_fw_uninit(fw);
949 struct prestera_fw *fw = pci_get_drvdata(pdev);
951 prestera_device_unregister(&fw->dev);
952 free_irq(pci_irq_vector(pdev, 0), fw);
954 destroy_workqueue(fw->wq);
955 prestera_fw_uninit(fw);