1 /****************************************************************************
2 * Driver for Solarflare network controllers and boards
3 * Copyright 2012-2013 Solarflare Communications Inc.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published
7 * by the Free Software Foundation, incorporated herein by reference.
10 #include "net_driver.h"
11 #include "ef10_regs.h"
14 #include "mcdi_pcol.h"
16 #include "workarounds.h"
18 #include "ef10_sriov.h"
20 #include <linux/jhash.h>
21 #include <linux/wait.h>
22 #include <linux/workqueue.h>
24 /* Hardware control for EF10 architecture including 'Huntington'. */
26 #define EFX_EF10_DRVGEN_EV 7
32 /* The reserved RSS context value */
33 #define EFX_EF10_RSS_CONTEXT_INVALID 0xffffffff
34 /* The maximum size of a shared RSS context */
35 /* TODO: this should really be from the mcdi protocol export */
36 #define EFX_EF10_MAX_SHARED_RSS_CONTEXT_SIZE 64UL
38 /* The filter table(s) are managed by firmware and we have write-only
39 * access. When removing filters we must identify them to the
40 * firmware by a 64-bit handle, but this is too wide for Linux kernel
41 * interfaces (32-bit for RX NFC, 16-bit for RFS). Also, we need to
42 * be able to tell in advance whether a requested insertion will
43 * replace an existing filter. Therefore we maintain a software hash
44 * table, which should be at least as large as the hardware hash
47 * Huntington has a single 8K filter table shared between all filter
48 * types and both ports.
50 #define HUNT_FILTER_TBL_ROWS 8192
52 #define EFX_EF10_FILTER_ID_INVALID 0xffff
53 struct efx_ef10_dev_addr {
58 struct efx_ef10_filter_table {
59 /* The RX match field masks supported by this fw & hw, in order of priority */
60 enum efx_filter_match_flags rx_match_flags[
61 MC_CMD_GET_PARSER_DISP_INFO_OUT_SUPPORTED_MATCHES_MAXNUM];
62 unsigned int rx_match_count;
65 unsigned long spec; /* pointer to spec plus flag bits */
66 /* BUSY flag indicates that an update is in progress. AUTO_OLD is
67 * used to mark and sweep MAC filters for the device address lists.
69 #define EFX_EF10_FILTER_FLAG_BUSY 1UL
70 #define EFX_EF10_FILTER_FLAG_AUTO_OLD 2UL
71 #define EFX_EF10_FILTER_FLAGS 3UL
72 u64 handle; /* firmware handle */
74 wait_queue_head_t waitq;
75 /* Shadow of net_device address lists, guarded by mac_lock */
76 #define EFX_EF10_FILTER_DEV_UC_MAX 32
77 #define EFX_EF10_FILTER_DEV_MC_MAX 256
78 struct efx_ef10_dev_addr dev_uc_list[EFX_EF10_FILTER_DEV_UC_MAX];
79 struct efx_ef10_dev_addr dev_mc_list[EFX_EF10_FILTER_DEV_MC_MAX];
82 /* Indices (like efx_ef10_dev_addr.id) for promisc/allmulti filters */
88 /* An arbitrary search limit for the software hash table */
89 #define EFX_EF10_FILTER_SEARCH_LIMIT 200
91 static void efx_ef10_rx_free_indir_table(struct efx_nic *efx);
92 static void efx_ef10_filter_table_remove(struct efx_nic *efx);
94 static int efx_ef10_get_warm_boot_count(struct efx_nic *efx)
98 efx_readd(efx, ®, ER_DZ_BIU_MC_SFT_STATUS);
99 return EFX_DWORD_FIELD(reg, EFX_WORD_1) == 0xb007 ?
100 EFX_DWORD_FIELD(reg, EFX_WORD_0) : -EIO;
103 static unsigned int efx_ef10_mem_map_size(struct efx_nic *efx)
107 bar = efx->type->mem_bar;
108 return resource_size(&efx->pci_dev->resource[bar]);
111 static bool efx_ef10_is_vf(struct efx_nic *efx)
113 return efx->type->is_vf;
116 static int efx_ef10_get_pf_index(struct efx_nic *efx)
118 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_FUNCTION_INFO_OUT_LEN);
119 struct efx_ef10_nic_data *nic_data = efx->nic_data;
123 rc = efx_mcdi_rpc(efx, MC_CMD_GET_FUNCTION_INFO, NULL, 0, outbuf,
124 sizeof(outbuf), &outlen);
127 if (outlen < sizeof(outbuf))
130 nic_data->pf_index = MCDI_DWORD(outbuf, GET_FUNCTION_INFO_OUT_PF);
134 #ifdef CONFIG_SFC_SRIOV
135 static int efx_ef10_get_vf_index(struct efx_nic *efx)
137 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_FUNCTION_INFO_OUT_LEN);
138 struct efx_ef10_nic_data *nic_data = efx->nic_data;
142 rc = efx_mcdi_rpc(efx, MC_CMD_GET_FUNCTION_INFO, NULL, 0, outbuf,
143 sizeof(outbuf), &outlen);
146 if (outlen < sizeof(outbuf))
149 nic_data->vf_index = MCDI_DWORD(outbuf, GET_FUNCTION_INFO_OUT_VF);
154 static int efx_ef10_init_datapath_caps(struct efx_nic *efx)
156 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_CAPABILITIES_OUT_LEN);
157 struct efx_ef10_nic_data *nic_data = efx->nic_data;
161 BUILD_BUG_ON(MC_CMD_GET_CAPABILITIES_IN_LEN != 0);
163 rc = efx_mcdi_rpc(efx, MC_CMD_GET_CAPABILITIES, NULL, 0,
164 outbuf, sizeof(outbuf), &outlen);
167 if (outlen < sizeof(outbuf)) {
168 netif_err(efx, drv, efx->net_dev,
169 "unable to read datapath firmware capabilities\n");
173 nic_data->datapath_caps =
174 MCDI_DWORD(outbuf, GET_CAPABILITIES_OUT_FLAGS1);
176 /* record the DPCPU firmware IDs to determine VEB vswitching support.
178 nic_data->rx_dpcpu_fw_id =
179 MCDI_WORD(outbuf, GET_CAPABILITIES_OUT_RX_DPCPU_FW_ID);
180 nic_data->tx_dpcpu_fw_id =
181 MCDI_WORD(outbuf, GET_CAPABILITIES_OUT_TX_DPCPU_FW_ID);
183 if (!(nic_data->datapath_caps &
184 (1 << MC_CMD_GET_CAPABILITIES_OUT_RX_PREFIX_LEN_14_LBN))) {
185 netif_err(efx, probe, efx->net_dev,
186 "current firmware does not support an RX prefix\n");
193 static int efx_ef10_get_sysclk_freq(struct efx_nic *efx)
195 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_CLOCK_OUT_LEN);
198 rc = efx_mcdi_rpc(efx, MC_CMD_GET_CLOCK, NULL, 0,
199 outbuf, sizeof(outbuf), NULL);
202 rc = MCDI_DWORD(outbuf, GET_CLOCK_OUT_SYS_FREQ);
203 return rc > 0 ? rc : -ERANGE;
206 static int efx_ef10_get_mac_address_pf(struct efx_nic *efx, u8 *mac_address)
208 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_MAC_ADDRESSES_OUT_LEN);
212 BUILD_BUG_ON(MC_CMD_GET_MAC_ADDRESSES_IN_LEN != 0);
214 rc = efx_mcdi_rpc(efx, MC_CMD_GET_MAC_ADDRESSES, NULL, 0,
215 outbuf, sizeof(outbuf), &outlen);
218 if (outlen < MC_CMD_GET_MAC_ADDRESSES_OUT_LEN)
221 ether_addr_copy(mac_address,
222 MCDI_PTR(outbuf, GET_MAC_ADDRESSES_OUT_MAC_ADDR_BASE));
226 static int efx_ef10_get_mac_address_vf(struct efx_nic *efx, u8 *mac_address)
228 MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_GET_MAC_ADDRESSES_IN_LEN);
229 MCDI_DECLARE_BUF(outbuf, MC_CMD_VPORT_GET_MAC_ADDRESSES_OUT_LENMAX);
233 MCDI_SET_DWORD(inbuf, VPORT_GET_MAC_ADDRESSES_IN_VPORT_ID,
234 EVB_PORT_ID_ASSIGNED);
235 rc = efx_mcdi_rpc(efx, MC_CMD_VPORT_GET_MAC_ADDRESSES, inbuf,
236 sizeof(inbuf), outbuf, sizeof(outbuf), &outlen);
240 if (outlen < MC_CMD_VPORT_GET_MAC_ADDRESSES_OUT_LENMIN)
243 num_addrs = MCDI_DWORD(outbuf,
244 VPORT_GET_MAC_ADDRESSES_OUT_MACADDR_COUNT);
246 WARN_ON(num_addrs != 1);
248 ether_addr_copy(mac_address,
249 MCDI_PTR(outbuf, VPORT_GET_MAC_ADDRESSES_OUT_MACADDR));
254 static ssize_t efx_ef10_show_link_control_flag(struct device *dev,
255 struct device_attribute *attr,
258 struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
260 return sprintf(buf, "%d\n",
261 ((efx->mcdi->fn_flags) &
262 (1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_LINKCTRL))
266 static ssize_t efx_ef10_show_primary_flag(struct device *dev,
267 struct device_attribute *attr,
270 struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
272 return sprintf(buf, "%d\n",
273 ((efx->mcdi->fn_flags) &
274 (1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_PRIMARY))
278 static DEVICE_ATTR(link_control_flag, 0444, efx_ef10_show_link_control_flag,
280 static DEVICE_ATTR(primary_flag, 0444, efx_ef10_show_primary_flag, NULL);
282 static int efx_ef10_probe(struct efx_nic *efx)
284 struct efx_ef10_nic_data *nic_data;
285 struct net_device *net_dev = efx->net_dev;
288 /* We can have one VI for each 8K region. However, until we
289 * use TX option descriptors we need two TX queues per channel.
291 efx->max_channels = min_t(unsigned int,
293 efx_ef10_mem_map_size(efx) /
294 (EFX_VI_PAGE_SIZE * EFX_TXQ_TYPES));
295 efx->max_tx_channels = efx->max_channels;
296 if (WARN_ON(efx->max_channels == 0))
299 nic_data = kzalloc(sizeof(*nic_data), GFP_KERNEL);
302 efx->nic_data = nic_data;
304 /* we assume later that we can copy from this buffer in dwords */
305 BUILD_BUG_ON(MCDI_CTL_SDU_LEN_MAX_V2 % 4);
307 rc = efx_nic_alloc_buffer(efx, &nic_data->mcdi_buf,
308 8 + MCDI_CTL_SDU_LEN_MAX_V2, GFP_KERNEL);
312 /* Get the MC's warm boot count. In case it's rebooting right
313 * now, be prepared to retry.
317 rc = efx_ef10_get_warm_boot_count(efx);
324 nic_data->warm_boot_count = rc;
326 nic_data->rx_rss_context = EFX_EF10_RSS_CONTEXT_INVALID;
328 nic_data->vport_id = EVB_PORT_ID_ASSIGNED;
330 /* In case we're recovering from a crash (kexec), we want to
331 * cancel any outstanding request by the previous user of this
332 * function. We send a special message using the least
333 * significant bits of the 'high' (doorbell) register.
335 _efx_writed(efx, cpu_to_le32(1), ER_DZ_MC_DB_HWRD);
337 rc = efx_mcdi_init(efx);
341 /* Reset (most) configuration for this function */
342 rc = efx_mcdi_reset(efx, RESET_TYPE_ALL);
346 /* Enable event logging */
347 rc = efx_mcdi_log_ctrl(efx, true, false, 0);
351 rc = device_create_file(&efx->pci_dev->dev,
352 &dev_attr_link_control_flag);
356 rc = device_create_file(&efx->pci_dev->dev, &dev_attr_primary_flag);
360 rc = efx_ef10_get_pf_index(efx);
364 rc = efx_ef10_init_datapath_caps(efx);
368 efx->rx_packet_len_offset =
369 ES_DZ_RX_PREFIX_PKTLEN_OFST - ES_DZ_RX_PREFIX_SIZE;
371 rc = efx_mcdi_port_get_number(efx);
375 net_dev->dev_port = rc;
377 rc = efx->type->get_mac_address(efx, efx->net_dev->perm_addr);
381 rc = efx_ef10_get_sysclk_freq(efx);
384 efx->timer_quantum_ns = 1536000 / rc; /* 1536 cycles */
386 /* Check whether firmware supports bug 35388 workaround.
387 * First try to enable it, then if we get EPERM, just
388 * ask if it's already enabled
390 rc = efx_mcdi_set_workaround(efx, MC_CMD_WORKAROUND_BUG35388, true, NULL);
392 nic_data->workaround_35388 = true;
393 } else if (rc == -EPERM) {
394 unsigned int enabled;
396 rc = efx_mcdi_get_workarounds(efx, NULL, &enabled);
399 nic_data->workaround_35388 = enabled &
400 MC_CMD_GET_WORKAROUNDS_OUT_BUG35388;
401 } else if (rc != -ENOSYS && rc != -ENOENT) {
404 netif_dbg(efx, probe, efx->net_dev,
405 "workaround for bug 35388 is %sabled\n",
406 nic_data->workaround_35388 ? "en" : "dis");
408 rc = efx_mcdi_mon_probe(efx);
409 if (rc && rc != -EPERM)
412 efx_ptp_probe(efx, NULL);
414 #ifdef CONFIG_SFC_SRIOV
415 if ((efx->pci_dev->physfn) && (!efx->pci_dev->is_physfn)) {
416 struct pci_dev *pci_dev_pf = efx->pci_dev->physfn;
417 struct efx_nic *efx_pf = pci_get_drvdata(pci_dev_pf);
419 efx_pf->type->get_mac_address(efx_pf, nic_data->port_id);
422 ether_addr_copy(nic_data->port_id, efx->net_dev->perm_addr);
427 device_remove_file(&efx->pci_dev->dev, &dev_attr_primary_flag);
429 device_remove_file(&efx->pci_dev->dev, &dev_attr_link_control_flag);
433 efx_nic_free_buffer(efx, &nic_data->mcdi_buf);
436 efx->nic_data = NULL;
440 static int efx_ef10_free_vis(struct efx_nic *efx)
442 MCDI_DECLARE_BUF_ERR(outbuf);
444 int rc = efx_mcdi_rpc_quiet(efx, MC_CMD_FREE_VIS, NULL, 0,
445 outbuf, sizeof(outbuf), &outlen);
447 /* -EALREADY means nothing to free, so ignore */
451 efx_mcdi_display_error(efx, MC_CMD_FREE_VIS, 0, outbuf, outlen,
458 static void efx_ef10_free_piobufs(struct efx_nic *efx)
460 struct efx_ef10_nic_data *nic_data = efx->nic_data;
461 MCDI_DECLARE_BUF(inbuf, MC_CMD_FREE_PIOBUF_IN_LEN);
465 BUILD_BUG_ON(MC_CMD_FREE_PIOBUF_OUT_LEN != 0);
467 for (i = 0; i < nic_data->n_piobufs; i++) {
468 MCDI_SET_DWORD(inbuf, FREE_PIOBUF_IN_PIOBUF_HANDLE,
469 nic_data->piobuf_handle[i]);
470 rc = efx_mcdi_rpc(efx, MC_CMD_FREE_PIOBUF, inbuf, sizeof(inbuf),
475 nic_data->n_piobufs = 0;
478 static int efx_ef10_alloc_piobufs(struct efx_nic *efx, unsigned int n)
480 struct efx_ef10_nic_data *nic_data = efx->nic_data;
481 MCDI_DECLARE_BUF(outbuf, MC_CMD_ALLOC_PIOBUF_OUT_LEN);
486 BUILD_BUG_ON(MC_CMD_ALLOC_PIOBUF_IN_LEN != 0);
488 for (i = 0; i < n; i++) {
489 rc = efx_mcdi_rpc(efx, MC_CMD_ALLOC_PIOBUF, NULL, 0,
490 outbuf, sizeof(outbuf), &outlen);
493 if (outlen < MC_CMD_ALLOC_PIOBUF_OUT_LEN) {
497 nic_data->piobuf_handle[i] =
498 MCDI_DWORD(outbuf, ALLOC_PIOBUF_OUT_PIOBUF_HANDLE);
499 netif_dbg(efx, probe, efx->net_dev,
500 "allocated PIO buffer %u handle %x\n", i,
501 nic_data->piobuf_handle[i]);
504 nic_data->n_piobufs = i;
506 efx_ef10_free_piobufs(efx);
510 static int efx_ef10_link_piobufs(struct efx_nic *efx)
512 struct efx_ef10_nic_data *nic_data = efx->nic_data;
513 _MCDI_DECLARE_BUF(inbuf,
514 max(MC_CMD_LINK_PIOBUF_IN_LEN,
515 MC_CMD_UNLINK_PIOBUF_IN_LEN));
516 struct efx_channel *channel;
517 struct efx_tx_queue *tx_queue;
518 unsigned int offset, index;
521 BUILD_BUG_ON(MC_CMD_LINK_PIOBUF_OUT_LEN != 0);
522 BUILD_BUG_ON(MC_CMD_UNLINK_PIOBUF_OUT_LEN != 0);
524 memset(inbuf, 0, sizeof(inbuf));
526 /* Link a buffer to each VI in the write-combining mapping */
527 for (index = 0; index < nic_data->n_piobufs; ++index) {
528 MCDI_SET_DWORD(inbuf, LINK_PIOBUF_IN_PIOBUF_HANDLE,
529 nic_data->piobuf_handle[index]);
530 MCDI_SET_DWORD(inbuf, LINK_PIOBUF_IN_TXQ_INSTANCE,
531 nic_data->pio_write_vi_base + index);
532 rc = efx_mcdi_rpc(efx, MC_CMD_LINK_PIOBUF,
533 inbuf, MC_CMD_LINK_PIOBUF_IN_LEN,
536 netif_err(efx, drv, efx->net_dev,
537 "failed to link VI %u to PIO buffer %u (%d)\n",
538 nic_data->pio_write_vi_base + index, index,
542 netif_dbg(efx, probe, efx->net_dev,
543 "linked VI %u to PIO buffer %u\n",
544 nic_data->pio_write_vi_base + index, index);
547 /* Link a buffer to each TX queue */
548 efx_for_each_channel(channel, efx) {
549 efx_for_each_channel_tx_queue(tx_queue, channel) {
550 /* We assign the PIO buffers to queues in
551 * reverse order to allow for the following
554 offset = ((efx->tx_channel_offset + efx->n_tx_channels -
555 tx_queue->channel->channel - 1) *
557 index = offset / ER_DZ_TX_PIOBUF_SIZE;
558 offset = offset % ER_DZ_TX_PIOBUF_SIZE;
560 /* When the host page size is 4K, the first
561 * host page in the WC mapping may be within
562 * the same VI page as the last TX queue. We
563 * can only link one buffer to each VI.
565 if (tx_queue->queue == nic_data->pio_write_vi_base) {
569 MCDI_SET_DWORD(inbuf,
570 LINK_PIOBUF_IN_PIOBUF_HANDLE,
571 nic_data->piobuf_handle[index]);
572 MCDI_SET_DWORD(inbuf,
573 LINK_PIOBUF_IN_TXQ_INSTANCE,
575 rc = efx_mcdi_rpc(efx, MC_CMD_LINK_PIOBUF,
576 inbuf, MC_CMD_LINK_PIOBUF_IN_LEN,
581 /* This is non-fatal; the TX path just
582 * won't use PIO for this queue
584 netif_err(efx, drv, efx->net_dev,
585 "failed to link VI %u to PIO buffer %u (%d)\n",
586 tx_queue->queue, index, rc);
587 tx_queue->piobuf = NULL;
590 nic_data->pio_write_base +
591 index * EFX_VI_PAGE_SIZE + offset;
592 tx_queue->piobuf_offset = offset;
593 netif_dbg(efx, probe, efx->net_dev,
594 "linked VI %u to PIO buffer %u offset %x addr %p\n",
595 tx_queue->queue, index,
596 tx_queue->piobuf_offset,
606 MCDI_SET_DWORD(inbuf, UNLINK_PIOBUF_IN_TXQ_INSTANCE,
607 nic_data->pio_write_vi_base + index);
608 efx_mcdi_rpc(efx, MC_CMD_UNLINK_PIOBUF,
609 inbuf, MC_CMD_UNLINK_PIOBUF_IN_LEN,
615 #else /* !EFX_USE_PIO */
617 static int efx_ef10_alloc_piobufs(struct efx_nic *efx, unsigned int n)
619 return n == 0 ? 0 : -ENOBUFS;
622 static int efx_ef10_link_piobufs(struct efx_nic *efx)
627 static void efx_ef10_free_piobufs(struct efx_nic *efx)
631 #endif /* EFX_USE_PIO */
633 static void efx_ef10_remove(struct efx_nic *efx)
635 struct efx_ef10_nic_data *nic_data = efx->nic_data;
638 #ifdef CONFIG_SFC_SRIOV
639 struct efx_ef10_nic_data *nic_data_pf;
640 struct pci_dev *pci_dev_pf;
641 struct efx_nic *efx_pf;
644 if (efx->pci_dev->is_virtfn) {
645 pci_dev_pf = efx->pci_dev->physfn;
647 efx_pf = pci_get_drvdata(pci_dev_pf);
648 nic_data_pf = efx_pf->nic_data;
649 vf = nic_data_pf->vf + nic_data->vf_index;
652 netif_info(efx, drv, efx->net_dev,
653 "Could not get the PF id from VF\n");
659 efx_mcdi_mon_remove(efx);
661 efx_ef10_rx_free_indir_table(efx);
663 if (nic_data->wc_membase)
664 iounmap(nic_data->wc_membase);
666 rc = efx_ef10_free_vis(efx);
669 if (!nic_data->must_restore_piobufs)
670 efx_ef10_free_piobufs(efx);
672 device_remove_file(&efx->pci_dev->dev, &dev_attr_primary_flag);
673 device_remove_file(&efx->pci_dev->dev, &dev_attr_link_control_flag);
676 efx_nic_free_buffer(efx, &nic_data->mcdi_buf);
680 static int efx_ef10_probe_pf(struct efx_nic *efx)
682 return efx_ef10_probe(efx);
685 int efx_ef10_vadaptor_alloc(struct efx_nic *efx, unsigned int port_id)
687 MCDI_DECLARE_BUF(inbuf, MC_CMD_VADAPTOR_ALLOC_IN_LEN);
689 MCDI_SET_DWORD(inbuf, VADAPTOR_ALLOC_IN_UPSTREAM_PORT_ID, port_id);
690 return efx_mcdi_rpc(efx, MC_CMD_VADAPTOR_ALLOC, inbuf, sizeof(inbuf),
694 int efx_ef10_vadaptor_free(struct efx_nic *efx, unsigned int port_id)
696 MCDI_DECLARE_BUF(inbuf, MC_CMD_VADAPTOR_FREE_IN_LEN);
698 MCDI_SET_DWORD(inbuf, VADAPTOR_FREE_IN_UPSTREAM_PORT_ID, port_id);
699 return efx_mcdi_rpc(efx, MC_CMD_VADAPTOR_FREE, inbuf, sizeof(inbuf),
703 int efx_ef10_vport_add_mac(struct efx_nic *efx,
704 unsigned int port_id, u8 *mac)
706 MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_ADD_MAC_ADDRESS_IN_LEN);
708 MCDI_SET_DWORD(inbuf, VPORT_ADD_MAC_ADDRESS_IN_VPORT_ID, port_id);
709 ether_addr_copy(MCDI_PTR(inbuf, VPORT_ADD_MAC_ADDRESS_IN_MACADDR), mac);
711 return efx_mcdi_rpc(efx, MC_CMD_VPORT_ADD_MAC_ADDRESS, inbuf,
712 sizeof(inbuf), NULL, 0, NULL);
715 int efx_ef10_vport_del_mac(struct efx_nic *efx,
716 unsigned int port_id, u8 *mac)
718 MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_DEL_MAC_ADDRESS_IN_LEN);
720 MCDI_SET_DWORD(inbuf, VPORT_DEL_MAC_ADDRESS_IN_VPORT_ID, port_id);
721 ether_addr_copy(MCDI_PTR(inbuf, VPORT_DEL_MAC_ADDRESS_IN_MACADDR), mac);
723 return efx_mcdi_rpc(efx, MC_CMD_VPORT_DEL_MAC_ADDRESS, inbuf,
724 sizeof(inbuf), NULL, 0, NULL);
727 #ifdef CONFIG_SFC_SRIOV
728 static int efx_ef10_probe_vf(struct efx_nic *efx)
731 struct pci_dev *pci_dev_pf;
733 /* If the parent PF has no VF data structure, it doesn't know about this
734 * VF so fail probe. The VF needs to be re-created. This can happen
735 * if the PF driver is unloaded while the VF is assigned to a guest.
737 pci_dev_pf = efx->pci_dev->physfn;
739 struct efx_nic *efx_pf = pci_get_drvdata(pci_dev_pf);
740 struct efx_ef10_nic_data *nic_data_pf = efx_pf->nic_data;
742 if (!nic_data_pf->vf) {
743 netif_info(efx, drv, efx->net_dev,
744 "The VF cannot link to its parent PF; "
745 "please destroy and re-create the VF\n");
750 rc = efx_ef10_probe(efx);
754 rc = efx_ef10_get_vf_index(efx);
758 if (efx->pci_dev->is_virtfn) {
759 if (efx->pci_dev->physfn) {
760 struct efx_nic *efx_pf =
761 pci_get_drvdata(efx->pci_dev->physfn);
762 struct efx_ef10_nic_data *nic_data_p = efx_pf->nic_data;
763 struct efx_ef10_nic_data *nic_data = efx->nic_data;
765 nic_data_p->vf[nic_data->vf_index].efx = efx;
766 nic_data_p->vf[nic_data->vf_index].pci_dev =
769 netif_info(efx, drv, efx->net_dev,
770 "Could not get the PF id from VF\n");
776 efx_ef10_remove(efx);
780 static int efx_ef10_probe_vf(struct efx_nic *efx __attribute__ ((unused)))
786 static int efx_ef10_alloc_vis(struct efx_nic *efx,
787 unsigned int min_vis, unsigned int max_vis)
789 MCDI_DECLARE_BUF(inbuf, MC_CMD_ALLOC_VIS_IN_LEN);
790 MCDI_DECLARE_BUF(outbuf, MC_CMD_ALLOC_VIS_OUT_LEN);
791 struct efx_ef10_nic_data *nic_data = efx->nic_data;
795 MCDI_SET_DWORD(inbuf, ALLOC_VIS_IN_MIN_VI_COUNT, min_vis);
796 MCDI_SET_DWORD(inbuf, ALLOC_VIS_IN_MAX_VI_COUNT, max_vis);
797 rc = efx_mcdi_rpc(efx, MC_CMD_ALLOC_VIS, inbuf, sizeof(inbuf),
798 outbuf, sizeof(outbuf), &outlen);
802 if (outlen < MC_CMD_ALLOC_VIS_OUT_LEN)
805 netif_dbg(efx, drv, efx->net_dev, "base VI is A0x%03x\n",
806 MCDI_DWORD(outbuf, ALLOC_VIS_OUT_VI_BASE));
808 nic_data->vi_base = MCDI_DWORD(outbuf, ALLOC_VIS_OUT_VI_BASE);
809 nic_data->n_allocated_vis = MCDI_DWORD(outbuf, ALLOC_VIS_OUT_VI_COUNT);
813 /* Note that the failure path of this function does not free
814 * resources, as this will be done by efx_ef10_remove().
816 static int efx_ef10_dimension_resources(struct efx_nic *efx)
818 struct efx_ef10_nic_data *nic_data = efx->nic_data;
819 unsigned int uc_mem_map_size, wc_mem_map_size;
820 unsigned int min_vis = max(EFX_TXQ_TYPES,
821 efx_separate_tx_channels ? 2 : 1);
822 unsigned int channel_vis, pio_write_vi_base, max_vis;
823 void __iomem *membase;
826 channel_vis = max(efx->n_channels, efx->n_tx_channels * EFX_TXQ_TYPES);
829 /* Try to allocate PIO buffers if wanted and if the full
830 * number of PIO buffers would be sufficient to allocate one
831 * copy-buffer per TX channel. Failure is non-fatal, as there
832 * are only a small number of PIO buffers shared between all
833 * functions of the controller.
835 if (efx_piobuf_size != 0 &&
836 ER_DZ_TX_PIOBUF_SIZE / efx_piobuf_size * EF10_TX_PIOBUF_COUNT >=
837 efx->n_tx_channels) {
838 unsigned int n_piobufs =
839 DIV_ROUND_UP(efx->n_tx_channels,
840 ER_DZ_TX_PIOBUF_SIZE / efx_piobuf_size);
842 rc = efx_ef10_alloc_piobufs(efx, n_piobufs);
844 netif_err(efx, probe, efx->net_dev,
845 "failed to allocate PIO buffers (%d)\n", rc);
847 netif_dbg(efx, probe, efx->net_dev,
848 "allocated %u PIO buffers\n", n_piobufs);
851 nic_data->n_piobufs = 0;
854 /* PIO buffers should be mapped with write-combining enabled,
855 * and we want to make single UC and WC mappings rather than
856 * several of each (in fact that's the only option if host
857 * page size is >4K). So we may allocate some extra VIs just
858 * for writing PIO buffers through.
860 * The UC mapping contains (channel_vis - 1) complete VIs and the
861 * first half of the next VI. Then the WC mapping begins with
862 * the second half of this last VI.
864 uc_mem_map_size = PAGE_ALIGN((channel_vis - 1) * EFX_VI_PAGE_SIZE +
866 if (nic_data->n_piobufs) {
867 /* pio_write_vi_base rounds down to give the number of complete
868 * VIs inside the UC mapping.
870 pio_write_vi_base = uc_mem_map_size / EFX_VI_PAGE_SIZE;
871 wc_mem_map_size = (PAGE_ALIGN((pio_write_vi_base +
872 nic_data->n_piobufs) *
875 max_vis = pio_write_vi_base + nic_data->n_piobufs;
877 pio_write_vi_base = 0;
879 max_vis = channel_vis;
882 /* In case the last attached driver failed to free VIs, do it now */
883 rc = efx_ef10_free_vis(efx);
887 rc = efx_ef10_alloc_vis(efx, min_vis, max_vis);
891 if (nic_data->n_allocated_vis < channel_vis) {
892 netif_info(efx, drv, efx->net_dev,
893 "Could not allocate enough VIs to satisfy RSS"
894 " requirements. Performance may not be optimal.\n");
895 /* We didn't get the VIs to populate our channels.
896 * We could keep what we got but then we'd have more
897 * interrupts than we need.
898 * Instead calculate new max_channels and restart
900 efx->max_channels = nic_data->n_allocated_vis;
901 efx->max_tx_channels =
902 nic_data->n_allocated_vis / EFX_TXQ_TYPES;
904 efx_ef10_free_vis(efx);
908 /* If we didn't get enough VIs to map all the PIO buffers, free the
911 if (nic_data->n_piobufs &&
912 nic_data->n_allocated_vis <
913 pio_write_vi_base + nic_data->n_piobufs) {
914 netif_dbg(efx, probe, efx->net_dev,
915 "%u VIs are not sufficient to map %u PIO buffers\n",
916 nic_data->n_allocated_vis, nic_data->n_piobufs);
917 efx_ef10_free_piobufs(efx);
920 /* Shrink the original UC mapping of the memory BAR */
921 membase = ioremap_nocache(efx->membase_phys, uc_mem_map_size);
923 netif_err(efx, probe, efx->net_dev,
924 "could not shrink memory BAR to %x\n",
928 iounmap(efx->membase);
929 efx->membase = membase;
931 /* Set up the WC mapping if needed */
932 if (wc_mem_map_size) {
933 nic_data->wc_membase = ioremap_wc(efx->membase_phys +
936 if (!nic_data->wc_membase) {
937 netif_err(efx, probe, efx->net_dev,
938 "could not allocate WC mapping of size %x\n",
942 nic_data->pio_write_vi_base = pio_write_vi_base;
943 nic_data->pio_write_base =
944 nic_data->wc_membase +
945 (pio_write_vi_base * EFX_VI_PAGE_SIZE + ER_DZ_TX_PIOBUF -
948 rc = efx_ef10_link_piobufs(efx);
950 efx_ef10_free_piobufs(efx);
953 netif_dbg(efx, probe, efx->net_dev,
954 "memory BAR at %pa (virtual %p+%x UC, %p+%x WC)\n",
955 &efx->membase_phys, efx->membase, uc_mem_map_size,
956 nic_data->wc_membase, wc_mem_map_size);
961 static int efx_ef10_init_nic(struct efx_nic *efx)
963 struct efx_ef10_nic_data *nic_data = efx->nic_data;
966 if (nic_data->must_check_datapath_caps) {
967 rc = efx_ef10_init_datapath_caps(efx);
970 nic_data->must_check_datapath_caps = false;
973 if (nic_data->must_realloc_vis) {
974 /* We cannot let the number of VIs change now */
975 rc = efx_ef10_alloc_vis(efx, nic_data->n_allocated_vis,
976 nic_data->n_allocated_vis);
979 nic_data->must_realloc_vis = false;
982 if (nic_data->must_restore_piobufs && nic_data->n_piobufs) {
983 rc = efx_ef10_alloc_piobufs(efx, nic_data->n_piobufs);
985 rc = efx_ef10_link_piobufs(efx);
987 efx_ef10_free_piobufs(efx);
990 /* Log an error on failure, but this is non-fatal */
992 netif_err(efx, drv, efx->net_dev,
993 "failed to restore PIO buffers (%d)\n", rc);
994 nic_data->must_restore_piobufs = false;
997 /* don't fail init if RSS setup doesn't work */
998 efx->type->rx_push_rss_config(efx, false, efx->rx_indir_table);
1003 static void efx_ef10_reset_mc_allocations(struct efx_nic *efx)
1005 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1006 #ifdef CONFIG_SFC_SRIOV
1010 /* All our allocations have been reset */
1011 nic_data->must_realloc_vis = true;
1012 nic_data->must_restore_filters = true;
1013 nic_data->must_restore_piobufs = true;
1014 nic_data->rx_rss_context = EFX_EF10_RSS_CONTEXT_INVALID;
1016 /* Driver-created vswitches and vports must be re-created */
1017 nic_data->must_probe_vswitching = true;
1018 nic_data->vport_id = EVB_PORT_ID_ASSIGNED;
1019 #ifdef CONFIG_SFC_SRIOV
1021 for (i = 0; i < efx->vf_count; i++)
1022 nic_data->vf[i].vport_id = 0;
1026 static enum reset_type efx_ef10_map_reset_reason(enum reset_type reason)
1028 if (reason == RESET_TYPE_MC_FAILURE)
1029 return RESET_TYPE_DATAPATH;
1031 return efx_mcdi_map_reset_reason(reason);
1034 static int efx_ef10_map_reset_flags(u32 *flags)
1037 EF10_RESET_PORT = ((ETH_RESET_MAC | ETH_RESET_PHY) <<
1038 ETH_RESET_SHARED_SHIFT),
1039 EF10_RESET_MC = ((ETH_RESET_DMA | ETH_RESET_FILTER |
1040 ETH_RESET_OFFLOAD | ETH_RESET_MAC |
1041 ETH_RESET_PHY | ETH_RESET_MGMT) <<
1042 ETH_RESET_SHARED_SHIFT)
1045 /* We assume for now that our PCI function is permitted to
1049 if ((*flags & EF10_RESET_MC) == EF10_RESET_MC) {
1050 *flags &= ~EF10_RESET_MC;
1051 return RESET_TYPE_WORLD;
1054 if ((*flags & EF10_RESET_PORT) == EF10_RESET_PORT) {
1055 *flags &= ~EF10_RESET_PORT;
1056 return RESET_TYPE_ALL;
1059 /* no invisible reset implemented */
1064 static int efx_ef10_reset(struct efx_nic *efx, enum reset_type reset_type)
1066 int rc = efx_mcdi_reset(efx, reset_type);
1068 /* Unprivileged functions return -EPERM, but need to return success
1069 * here so that the datapath is brought back up.
1071 if (reset_type == RESET_TYPE_WORLD && rc == -EPERM)
1074 /* If it was a port reset, trigger reallocation of MC resources.
1075 * Note that on an MC reset nothing needs to be done now because we'll
1076 * detect the MC reset later and handle it then.
1077 * For an FLR, we never get an MC reset event, but the MC has reset all
1078 * resources assigned to us, so we have to trigger reallocation now.
1080 if ((reset_type == RESET_TYPE_ALL ||
1081 reset_type == RESET_TYPE_MCDI_TIMEOUT) && !rc)
1082 efx_ef10_reset_mc_allocations(efx);
1086 #define EF10_DMA_STAT(ext_name, mcdi_name) \
1087 [EF10_STAT_ ## ext_name] = \
1088 { #ext_name, 64, 8 * MC_CMD_MAC_ ## mcdi_name }
1089 #define EF10_DMA_INVIS_STAT(int_name, mcdi_name) \
1090 [EF10_STAT_ ## int_name] = \
1091 { NULL, 64, 8 * MC_CMD_MAC_ ## mcdi_name }
1092 #define EF10_OTHER_STAT(ext_name) \
1093 [EF10_STAT_ ## ext_name] = { #ext_name, 0, 0 }
1094 #define GENERIC_SW_STAT(ext_name) \
1095 [GENERIC_STAT_ ## ext_name] = { #ext_name, 0, 0 }
1097 static const struct efx_hw_stat_desc efx_ef10_stat_desc[EF10_STAT_COUNT] = {
1098 EF10_DMA_STAT(port_tx_bytes, TX_BYTES),
1099 EF10_DMA_STAT(port_tx_packets, TX_PKTS),
1100 EF10_DMA_STAT(port_tx_pause, TX_PAUSE_PKTS),
1101 EF10_DMA_STAT(port_tx_control, TX_CONTROL_PKTS),
1102 EF10_DMA_STAT(port_tx_unicast, TX_UNICAST_PKTS),
1103 EF10_DMA_STAT(port_tx_multicast, TX_MULTICAST_PKTS),
1104 EF10_DMA_STAT(port_tx_broadcast, TX_BROADCAST_PKTS),
1105 EF10_DMA_STAT(port_tx_lt64, TX_LT64_PKTS),
1106 EF10_DMA_STAT(port_tx_64, TX_64_PKTS),
1107 EF10_DMA_STAT(port_tx_65_to_127, TX_65_TO_127_PKTS),
1108 EF10_DMA_STAT(port_tx_128_to_255, TX_128_TO_255_PKTS),
1109 EF10_DMA_STAT(port_tx_256_to_511, TX_256_TO_511_PKTS),
1110 EF10_DMA_STAT(port_tx_512_to_1023, TX_512_TO_1023_PKTS),
1111 EF10_DMA_STAT(port_tx_1024_to_15xx, TX_1024_TO_15XX_PKTS),
1112 EF10_DMA_STAT(port_tx_15xx_to_jumbo, TX_15XX_TO_JUMBO_PKTS),
1113 EF10_DMA_STAT(port_rx_bytes, RX_BYTES),
1114 EF10_DMA_INVIS_STAT(port_rx_bytes_minus_good_bytes, RX_BAD_BYTES),
1115 EF10_OTHER_STAT(port_rx_good_bytes),
1116 EF10_OTHER_STAT(port_rx_bad_bytes),
1117 EF10_DMA_STAT(port_rx_packets, RX_PKTS),
1118 EF10_DMA_STAT(port_rx_good, RX_GOOD_PKTS),
1119 EF10_DMA_STAT(port_rx_bad, RX_BAD_FCS_PKTS),
1120 EF10_DMA_STAT(port_rx_pause, RX_PAUSE_PKTS),
1121 EF10_DMA_STAT(port_rx_control, RX_CONTROL_PKTS),
1122 EF10_DMA_STAT(port_rx_unicast, RX_UNICAST_PKTS),
1123 EF10_DMA_STAT(port_rx_multicast, RX_MULTICAST_PKTS),
1124 EF10_DMA_STAT(port_rx_broadcast, RX_BROADCAST_PKTS),
1125 EF10_DMA_STAT(port_rx_lt64, RX_UNDERSIZE_PKTS),
1126 EF10_DMA_STAT(port_rx_64, RX_64_PKTS),
1127 EF10_DMA_STAT(port_rx_65_to_127, RX_65_TO_127_PKTS),
1128 EF10_DMA_STAT(port_rx_128_to_255, RX_128_TO_255_PKTS),
1129 EF10_DMA_STAT(port_rx_256_to_511, RX_256_TO_511_PKTS),
1130 EF10_DMA_STAT(port_rx_512_to_1023, RX_512_TO_1023_PKTS),
1131 EF10_DMA_STAT(port_rx_1024_to_15xx, RX_1024_TO_15XX_PKTS),
1132 EF10_DMA_STAT(port_rx_15xx_to_jumbo, RX_15XX_TO_JUMBO_PKTS),
1133 EF10_DMA_STAT(port_rx_gtjumbo, RX_GTJUMBO_PKTS),
1134 EF10_DMA_STAT(port_rx_bad_gtjumbo, RX_JABBER_PKTS),
1135 EF10_DMA_STAT(port_rx_overflow, RX_OVERFLOW_PKTS),
1136 EF10_DMA_STAT(port_rx_align_error, RX_ALIGN_ERROR_PKTS),
1137 EF10_DMA_STAT(port_rx_length_error, RX_LENGTH_ERROR_PKTS),
1138 EF10_DMA_STAT(port_rx_nodesc_drops, RX_NODESC_DROPS),
1139 GENERIC_SW_STAT(rx_nodesc_trunc),
1140 GENERIC_SW_STAT(rx_noskb_drops),
1141 EF10_DMA_STAT(port_rx_pm_trunc_bb_overflow, PM_TRUNC_BB_OVERFLOW),
1142 EF10_DMA_STAT(port_rx_pm_discard_bb_overflow, PM_DISCARD_BB_OVERFLOW),
1143 EF10_DMA_STAT(port_rx_pm_trunc_vfifo_full, PM_TRUNC_VFIFO_FULL),
1144 EF10_DMA_STAT(port_rx_pm_discard_vfifo_full, PM_DISCARD_VFIFO_FULL),
1145 EF10_DMA_STAT(port_rx_pm_trunc_qbb, PM_TRUNC_QBB),
1146 EF10_DMA_STAT(port_rx_pm_discard_qbb, PM_DISCARD_QBB),
1147 EF10_DMA_STAT(port_rx_pm_discard_mapping, PM_DISCARD_MAPPING),
1148 EF10_DMA_STAT(port_rx_dp_q_disabled_packets, RXDP_Q_DISABLED_PKTS),
1149 EF10_DMA_STAT(port_rx_dp_di_dropped_packets, RXDP_DI_DROPPED_PKTS),
1150 EF10_DMA_STAT(port_rx_dp_streaming_packets, RXDP_STREAMING_PKTS),
1151 EF10_DMA_STAT(port_rx_dp_hlb_fetch, RXDP_HLB_FETCH_CONDITIONS),
1152 EF10_DMA_STAT(port_rx_dp_hlb_wait, RXDP_HLB_WAIT_CONDITIONS),
1153 EF10_DMA_STAT(rx_unicast, VADAPTER_RX_UNICAST_PACKETS),
1154 EF10_DMA_STAT(rx_unicast_bytes, VADAPTER_RX_UNICAST_BYTES),
1155 EF10_DMA_STAT(rx_multicast, VADAPTER_RX_MULTICAST_PACKETS),
1156 EF10_DMA_STAT(rx_multicast_bytes, VADAPTER_RX_MULTICAST_BYTES),
1157 EF10_DMA_STAT(rx_broadcast, VADAPTER_RX_BROADCAST_PACKETS),
1158 EF10_DMA_STAT(rx_broadcast_bytes, VADAPTER_RX_BROADCAST_BYTES),
1159 EF10_DMA_STAT(rx_bad, VADAPTER_RX_BAD_PACKETS),
1160 EF10_DMA_STAT(rx_bad_bytes, VADAPTER_RX_BAD_BYTES),
1161 EF10_DMA_STAT(rx_overflow, VADAPTER_RX_OVERFLOW),
1162 EF10_DMA_STAT(tx_unicast, VADAPTER_TX_UNICAST_PACKETS),
1163 EF10_DMA_STAT(tx_unicast_bytes, VADAPTER_TX_UNICAST_BYTES),
1164 EF10_DMA_STAT(tx_multicast, VADAPTER_TX_MULTICAST_PACKETS),
1165 EF10_DMA_STAT(tx_multicast_bytes, VADAPTER_TX_MULTICAST_BYTES),
1166 EF10_DMA_STAT(tx_broadcast, VADAPTER_TX_BROADCAST_PACKETS),
1167 EF10_DMA_STAT(tx_broadcast_bytes, VADAPTER_TX_BROADCAST_BYTES),
1168 EF10_DMA_STAT(tx_bad, VADAPTER_TX_BAD_PACKETS),
1169 EF10_DMA_STAT(tx_bad_bytes, VADAPTER_TX_BAD_BYTES),
1170 EF10_DMA_STAT(tx_overflow, VADAPTER_TX_OVERFLOW),
1173 #define HUNT_COMMON_STAT_MASK ((1ULL << EF10_STAT_port_tx_bytes) | \
1174 (1ULL << EF10_STAT_port_tx_packets) | \
1175 (1ULL << EF10_STAT_port_tx_pause) | \
1176 (1ULL << EF10_STAT_port_tx_unicast) | \
1177 (1ULL << EF10_STAT_port_tx_multicast) | \
1178 (1ULL << EF10_STAT_port_tx_broadcast) | \
1179 (1ULL << EF10_STAT_port_rx_bytes) | \
1181 EF10_STAT_port_rx_bytes_minus_good_bytes) | \
1182 (1ULL << EF10_STAT_port_rx_good_bytes) | \
1183 (1ULL << EF10_STAT_port_rx_bad_bytes) | \
1184 (1ULL << EF10_STAT_port_rx_packets) | \
1185 (1ULL << EF10_STAT_port_rx_good) | \
1186 (1ULL << EF10_STAT_port_rx_bad) | \
1187 (1ULL << EF10_STAT_port_rx_pause) | \
1188 (1ULL << EF10_STAT_port_rx_control) | \
1189 (1ULL << EF10_STAT_port_rx_unicast) | \
1190 (1ULL << EF10_STAT_port_rx_multicast) | \
1191 (1ULL << EF10_STAT_port_rx_broadcast) | \
1192 (1ULL << EF10_STAT_port_rx_lt64) | \
1193 (1ULL << EF10_STAT_port_rx_64) | \
1194 (1ULL << EF10_STAT_port_rx_65_to_127) | \
1195 (1ULL << EF10_STAT_port_rx_128_to_255) | \
1196 (1ULL << EF10_STAT_port_rx_256_to_511) | \
1197 (1ULL << EF10_STAT_port_rx_512_to_1023) |\
1198 (1ULL << EF10_STAT_port_rx_1024_to_15xx) |\
1199 (1ULL << EF10_STAT_port_rx_15xx_to_jumbo) |\
1200 (1ULL << EF10_STAT_port_rx_gtjumbo) | \
1201 (1ULL << EF10_STAT_port_rx_bad_gtjumbo) |\
1202 (1ULL << EF10_STAT_port_rx_overflow) | \
1203 (1ULL << EF10_STAT_port_rx_nodesc_drops) |\
1204 (1ULL << GENERIC_STAT_rx_nodesc_trunc) | \
1205 (1ULL << GENERIC_STAT_rx_noskb_drops))
1207 /* These statistics are only provided by the 10G MAC. For a 10G/40G
1208 * switchable port we do not expose these because they might not
1209 * include all the packets they should.
1211 #define HUNT_10G_ONLY_STAT_MASK ((1ULL << EF10_STAT_port_tx_control) | \
1212 (1ULL << EF10_STAT_port_tx_lt64) | \
1213 (1ULL << EF10_STAT_port_tx_64) | \
1214 (1ULL << EF10_STAT_port_tx_65_to_127) |\
1215 (1ULL << EF10_STAT_port_tx_128_to_255) |\
1216 (1ULL << EF10_STAT_port_tx_256_to_511) |\
1217 (1ULL << EF10_STAT_port_tx_512_to_1023) |\
1218 (1ULL << EF10_STAT_port_tx_1024_to_15xx) |\
1219 (1ULL << EF10_STAT_port_tx_15xx_to_jumbo))
1221 /* These statistics are only provided by the 40G MAC. For a 10G/40G
1222 * switchable port we do expose these because the errors will otherwise
1225 #define HUNT_40G_EXTRA_STAT_MASK ((1ULL << EF10_STAT_port_rx_align_error) |\
1226 (1ULL << EF10_STAT_port_rx_length_error))
1228 /* These statistics are only provided if the firmware supports the
1229 * capability PM_AND_RXDP_COUNTERS.
1231 #define HUNT_PM_AND_RXDP_STAT_MASK ( \
1232 (1ULL << EF10_STAT_port_rx_pm_trunc_bb_overflow) | \
1233 (1ULL << EF10_STAT_port_rx_pm_discard_bb_overflow) | \
1234 (1ULL << EF10_STAT_port_rx_pm_trunc_vfifo_full) | \
1235 (1ULL << EF10_STAT_port_rx_pm_discard_vfifo_full) | \
1236 (1ULL << EF10_STAT_port_rx_pm_trunc_qbb) | \
1237 (1ULL << EF10_STAT_port_rx_pm_discard_qbb) | \
1238 (1ULL << EF10_STAT_port_rx_pm_discard_mapping) | \
1239 (1ULL << EF10_STAT_port_rx_dp_q_disabled_packets) | \
1240 (1ULL << EF10_STAT_port_rx_dp_di_dropped_packets) | \
1241 (1ULL << EF10_STAT_port_rx_dp_streaming_packets) | \
1242 (1ULL << EF10_STAT_port_rx_dp_hlb_fetch) | \
1243 (1ULL << EF10_STAT_port_rx_dp_hlb_wait))
1245 static u64 efx_ef10_raw_stat_mask(struct efx_nic *efx)
1247 u64 raw_mask = HUNT_COMMON_STAT_MASK;
1248 u32 port_caps = efx_mcdi_phy_get_caps(efx);
1249 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1251 if (!(efx->mcdi->fn_flags &
1252 1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_LINKCTRL))
1255 if (port_caps & (1 << MC_CMD_PHY_CAP_40000FDX_LBN))
1256 raw_mask |= HUNT_40G_EXTRA_STAT_MASK;
1258 raw_mask |= HUNT_10G_ONLY_STAT_MASK;
1260 if (nic_data->datapath_caps &
1261 (1 << MC_CMD_GET_CAPABILITIES_OUT_PM_AND_RXDP_COUNTERS_LBN))
1262 raw_mask |= HUNT_PM_AND_RXDP_STAT_MASK;
1267 static void efx_ef10_get_stat_mask(struct efx_nic *efx, unsigned long *mask)
1269 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1272 raw_mask[0] = efx_ef10_raw_stat_mask(efx);
1274 /* Only show vadaptor stats when EVB capability is present */
1275 if (nic_data->datapath_caps &
1276 (1 << MC_CMD_GET_CAPABILITIES_OUT_EVB_LBN)) {
1277 raw_mask[0] |= ~((1ULL << EF10_STAT_rx_unicast) - 1);
1278 raw_mask[1] = (1ULL << (EF10_STAT_COUNT - 63)) - 1;
1283 #if BITS_PER_LONG == 64
1284 mask[0] = raw_mask[0];
1285 mask[1] = raw_mask[1];
1287 mask[0] = raw_mask[0] & 0xffffffff;
1288 mask[1] = raw_mask[0] >> 32;
1289 mask[2] = raw_mask[1] & 0xffffffff;
1290 mask[3] = raw_mask[1] >> 32;
1294 static size_t efx_ef10_describe_stats(struct efx_nic *efx, u8 *names)
1296 DECLARE_BITMAP(mask, EF10_STAT_COUNT);
1298 efx_ef10_get_stat_mask(efx, mask);
1299 return efx_nic_describe_stats(efx_ef10_stat_desc, EF10_STAT_COUNT,
1303 static size_t efx_ef10_update_stats_common(struct efx_nic *efx, u64 *full_stats,
1304 struct rtnl_link_stats64 *core_stats)
1306 DECLARE_BITMAP(mask, EF10_STAT_COUNT);
1307 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1308 u64 *stats = nic_data->stats;
1309 size_t stats_count = 0, index;
1311 efx_ef10_get_stat_mask(efx, mask);
1314 for_each_set_bit(index, mask, EF10_STAT_COUNT) {
1315 if (efx_ef10_stat_desc[index].name) {
1316 *full_stats++ = stats[index];
1325 if (nic_data->datapath_caps &
1326 1 << MC_CMD_GET_CAPABILITIES_OUT_EVB_LBN) {
1327 /* Use vadaptor stats. */
1328 core_stats->rx_packets = stats[EF10_STAT_rx_unicast] +
1329 stats[EF10_STAT_rx_multicast] +
1330 stats[EF10_STAT_rx_broadcast];
1331 core_stats->tx_packets = stats[EF10_STAT_tx_unicast] +
1332 stats[EF10_STAT_tx_multicast] +
1333 stats[EF10_STAT_tx_broadcast];
1334 core_stats->rx_bytes = stats[EF10_STAT_rx_unicast_bytes] +
1335 stats[EF10_STAT_rx_multicast_bytes] +
1336 stats[EF10_STAT_rx_broadcast_bytes];
1337 core_stats->tx_bytes = stats[EF10_STAT_tx_unicast_bytes] +
1338 stats[EF10_STAT_tx_multicast_bytes] +
1339 stats[EF10_STAT_tx_broadcast_bytes];
1340 core_stats->rx_dropped = stats[GENERIC_STAT_rx_nodesc_trunc] +
1341 stats[GENERIC_STAT_rx_noskb_drops];
1342 core_stats->multicast = stats[EF10_STAT_rx_multicast];
1343 core_stats->rx_crc_errors = stats[EF10_STAT_rx_bad];
1344 core_stats->rx_fifo_errors = stats[EF10_STAT_rx_overflow];
1345 core_stats->rx_errors = core_stats->rx_crc_errors;
1346 core_stats->tx_errors = stats[EF10_STAT_tx_bad];
1348 /* Use port stats. */
1349 core_stats->rx_packets = stats[EF10_STAT_port_rx_packets];
1350 core_stats->tx_packets = stats[EF10_STAT_port_tx_packets];
1351 core_stats->rx_bytes = stats[EF10_STAT_port_rx_bytes];
1352 core_stats->tx_bytes = stats[EF10_STAT_port_tx_bytes];
1353 core_stats->rx_dropped = stats[EF10_STAT_port_rx_nodesc_drops] +
1354 stats[GENERIC_STAT_rx_nodesc_trunc] +
1355 stats[GENERIC_STAT_rx_noskb_drops];
1356 core_stats->multicast = stats[EF10_STAT_port_rx_multicast];
1357 core_stats->rx_length_errors =
1358 stats[EF10_STAT_port_rx_gtjumbo] +
1359 stats[EF10_STAT_port_rx_length_error];
1360 core_stats->rx_crc_errors = stats[EF10_STAT_port_rx_bad];
1361 core_stats->rx_frame_errors =
1362 stats[EF10_STAT_port_rx_align_error];
1363 core_stats->rx_fifo_errors = stats[EF10_STAT_port_rx_overflow];
1364 core_stats->rx_errors = (core_stats->rx_length_errors +
1365 core_stats->rx_crc_errors +
1366 core_stats->rx_frame_errors);
1372 static int efx_ef10_try_update_nic_stats_pf(struct efx_nic *efx)
1374 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1375 DECLARE_BITMAP(mask, EF10_STAT_COUNT);
1376 __le64 generation_start, generation_end;
1377 u64 *stats = nic_data->stats;
1380 efx_ef10_get_stat_mask(efx, mask);
1382 dma_stats = efx->stats_buffer.addr;
1383 nic_data = efx->nic_data;
1385 generation_end = dma_stats[MC_CMD_MAC_GENERATION_END];
1386 if (generation_end == EFX_MC_STATS_GENERATION_INVALID)
1389 efx_nic_update_stats(efx_ef10_stat_desc, EF10_STAT_COUNT, mask,
1390 stats, efx->stats_buffer.addr, false);
1392 generation_start = dma_stats[MC_CMD_MAC_GENERATION_START];
1393 if (generation_end != generation_start)
1396 /* Update derived statistics */
1397 efx_nic_fix_nodesc_drop_stat(efx,
1398 &stats[EF10_STAT_port_rx_nodesc_drops]);
1399 stats[EF10_STAT_port_rx_good_bytes] =
1400 stats[EF10_STAT_port_rx_bytes] -
1401 stats[EF10_STAT_port_rx_bytes_minus_good_bytes];
1402 efx_update_diff_stat(&stats[EF10_STAT_port_rx_bad_bytes],
1403 stats[EF10_STAT_port_rx_bytes_minus_good_bytes]);
1404 efx_update_sw_stats(efx, stats);
1409 static size_t efx_ef10_update_stats_pf(struct efx_nic *efx, u64 *full_stats,
1410 struct rtnl_link_stats64 *core_stats)
1414 /* If we're unlucky enough to read statistics during the DMA, wait
1415 * up to 10ms for it to finish (typically takes <500us)
1417 for (retry = 0; retry < 100; ++retry) {
1418 if (efx_ef10_try_update_nic_stats_pf(efx) == 0)
1423 return efx_ef10_update_stats_common(efx, full_stats, core_stats);
1426 static int efx_ef10_try_update_nic_stats_vf(struct efx_nic *efx)
1428 MCDI_DECLARE_BUF(inbuf, MC_CMD_MAC_STATS_IN_LEN);
1429 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1430 DECLARE_BITMAP(mask, EF10_STAT_COUNT);
1431 __le64 generation_start, generation_end;
1432 u64 *stats = nic_data->stats;
1433 u32 dma_len = MC_CMD_MAC_NSTATS * sizeof(u64);
1434 struct efx_buffer stats_buf;
1438 spin_unlock_bh(&efx->stats_lock);
1440 if (in_interrupt()) {
1441 /* If in atomic context, cannot update stats. Just update the
1442 * software stats and return so the caller can continue.
1444 spin_lock_bh(&efx->stats_lock);
1445 efx_update_sw_stats(efx, stats);
1449 efx_ef10_get_stat_mask(efx, mask);
1451 rc = efx_nic_alloc_buffer(efx, &stats_buf, dma_len, GFP_ATOMIC);
1453 spin_lock_bh(&efx->stats_lock);
1457 dma_stats = stats_buf.addr;
1458 dma_stats[MC_CMD_MAC_GENERATION_END] = EFX_MC_STATS_GENERATION_INVALID;
1460 MCDI_SET_QWORD(inbuf, MAC_STATS_IN_DMA_ADDR, stats_buf.dma_addr);
1461 MCDI_POPULATE_DWORD_1(inbuf, MAC_STATS_IN_CMD,
1462 MAC_STATS_IN_DMA, 1);
1463 MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len);
1464 MCDI_SET_DWORD(inbuf, MAC_STATS_IN_PORT_ID, EVB_PORT_ID_ASSIGNED);
1466 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf),
1468 spin_lock_bh(&efx->stats_lock);
1470 /* Expect ENOENT if DMA queues have not been set up */
1471 if (rc != -ENOENT || atomic_read(&efx->active_queues))
1472 efx_mcdi_display_error(efx, MC_CMD_MAC_STATS,
1473 sizeof(inbuf), NULL, 0, rc);
1477 generation_end = dma_stats[MC_CMD_MAC_GENERATION_END];
1478 if (generation_end == EFX_MC_STATS_GENERATION_INVALID) {
1483 efx_nic_update_stats(efx_ef10_stat_desc, EF10_STAT_COUNT, mask,
1484 stats, stats_buf.addr, false);
1486 generation_start = dma_stats[MC_CMD_MAC_GENERATION_START];
1487 if (generation_end != generation_start) {
1492 efx_update_sw_stats(efx, stats);
1494 efx_nic_free_buffer(efx, &stats_buf);
1498 static size_t efx_ef10_update_stats_vf(struct efx_nic *efx, u64 *full_stats,
1499 struct rtnl_link_stats64 *core_stats)
1501 if (efx_ef10_try_update_nic_stats_vf(efx))
1504 return efx_ef10_update_stats_common(efx, full_stats, core_stats);
1507 static void efx_ef10_push_irq_moderation(struct efx_channel *channel)
1509 struct efx_nic *efx = channel->efx;
1510 unsigned int mode, value;
1511 efx_dword_t timer_cmd;
1513 if (channel->irq_moderation) {
1515 value = channel->irq_moderation - 1;
1521 if (EFX_EF10_WORKAROUND_35388(efx)) {
1522 EFX_POPULATE_DWORD_3(timer_cmd, ERF_DD_EVQ_IND_TIMER_FLAGS,
1523 EFE_DD_EVQ_IND_TIMER_FLAGS,
1524 ERF_DD_EVQ_IND_TIMER_MODE, mode,
1525 ERF_DD_EVQ_IND_TIMER_VAL, value);
1526 efx_writed_page(efx, &timer_cmd, ER_DD_EVQ_INDIRECT,
1529 EFX_POPULATE_DWORD_2(timer_cmd, ERF_DZ_TC_TIMER_MODE, mode,
1530 ERF_DZ_TC_TIMER_VAL, value);
1531 efx_writed_page(efx, &timer_cmd, ER_DZ_EVQ_TMR,
1536 static void efx_ef10_get_wol_vf(struct efx_nic *efx,
1537 struct ethtool_wolinfo *wol) {}
1539 static int efx_ef10_set_wol_vf(struct efx_nic *efx, u32 type)
1544 static void efx_ef10_get_wol(struct efx_nic *efx, struct ethtool_wolinfo *wol)
1548 memset(&wol->sopass, 0, sizeof(wol->sopass));
1551 static int efx_ef10_set_wol(struct efx_nic *efx, u32 type)
1558 static void efx_ef10_mcdi_request(struct efx_nic *efx,
1559 const efx_dword_t *hdr, size_t hdr_len,
1560 const efx_dword_t *sdu, size_t sdu_len)
1562 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1563 u8 *pdu = nic_data->mcdi_buf.addr;
1565 memcpy(pdu, hdr, hdr_len);
1566 memcpy(pdu + hdr_len, sdu, sdu_len);
1569 /* The hardware provides 'low' and 'high' (doorbell) registers
1570 * for passing the 64-bit address of an MCDI request to
1571 * firmware. However the dwords are swapped by firmware. The
1572 * least significant bits of the doorbell are then 0 for all
1573 * MCDI requests due to alignment.
1575 _efx_writed(efx, cpu_to_le32((u64)nic_data->mcdi_buf.dma_addr >> 32),
1577 _efx_writed(efx, cpu_to_le32((u32)nic_data->mcdi_buf.dma_addr),
1581 static bool efx_ef10_mcdi_poll_response(struct efx_nic *efx)
1583 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1584 const efx_dword_t hdr = *(const efx_dword_t *)nic_data->mcdi_buf.addr;
1587 return EFX_DWORD_FIELD(hdr, MCDI_HEADER_RESPONSE);
1591 efx_ef10_mcdi_read_response(struct efx_nic *efx, efx_dword_t *outbuf,
1592 size_t offset, size_t outlen)
1594 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1595 const u8 *pdu = nic_data->mcdi_buf.addr;
1597 memcpy(outbuf, pdu + offset, outlen);
1600 static void efx_ef10_mcdi_reboot_detected(struct efx_nic *efx)
1602 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1604 /* All our allocations have been reset */
1605 efx_ef10_reset_mc_allocations(efx);
1607 /* The datapath firmware might have been changed */
1608 nic_data->must_check_datapath_caps = true;
1610 /* MAC statistics have been cleared on the NIC; clear the local
1611 * statistic that we update with efx_update_diff_stat().
1613 nic_data->stats[EF10_STAT_port_rx_bad_bytes] = 0;
1616 static int efx_ef10_mcdi_poll_reboot(struct efx_nic *efx)
1618 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1621 rc = efx_ef10_get_warm_boot_count(efx);
1623 /* The firmware is presumably in the process of
1624 * rebooting. However, we are supposed to report each
1625 * reboot just once, so we must only do that once we
1626 * can read and store the updated warm boot count.
1631 if (rc == nic_data->warm_boot_count)
1634 nic_data->warm_boot_count = rc;
1635 efx_ef10_mcdi_reboot_detected(efx);
1640 /* Handle an MSI interrupt
1642 * Handle an MSI hardware interrupt. This routine schedules event
1643 * queue processing. No interrupt acknowledgement cycle is necessary.
1644 * Also, we never need to check that the interrupt is for us, since
1645 * MSI interrupts cannot be shared.
1647 static irqreturn_t efx_ef10_msi_interrupt(int irq, void *dev_id)
1649 struct efx_msi_context *context = dev_id;
1650 struct efx_nic *efx = context->efx;
1652 netif_vdbg(efx, intr, efx->net_dev,
1653 "IRQ %d on CPU %d\n", irq, raw_smp_processor_id());
1655 if (likely(ACCESS_ONCE(efx->irq_soft_enabled))) {
1656 /* Note test interrupts */
1657 if (context->index == efx->irq_level)
1658 efx->last_irq_cpu = raw_smp_processor_id();
1660 /* Schedule processing of the channel */
1661 efx_schedule_channel_irq(efx->channel[context->index]);
1667 static irqreturn_t efx_ef10_legacy_interrupt(int irq, void *dev_id)
1669 struct efx_nic *efx = dev_id;
1670 bool soft_enabled = ACCESS_ONCE(efx->irq_soft_enabled);
1671 struct efx_channel *channel;
1675 /* Read the ISR which also ACKs the interrupts */
1676 efx_readd(efx, ®, ER_DZ_BIU_INT_ISR);
1677 queues = EFX_DWORD_FIELD(reg, ERF_DZ_ISR_REG);
1682 if (likely(soft_enabled)) {
1683 /* Note test interrupts */
1684 if (queues & (1U << efx->irq_level))
1685 efx->last_irq_cpu = raw_smp_processor_id();
1687 efx_for_each_channel(channel, efx) {
1689 efx_schedule_channel_irq(channel);
1694 netif_vdbg(efx, intr, efx->net_dev,
1695 "IRQ %d on CPU %d status " EFX_DWORD_FMT "\n",
1696 irq, raw_smp_processor_id(), EFX_DWORD_VAL(reg));
1701 static void efx_ef10_irq_test_generate(struct efx_nic *efx)
1703 MCDI_DECLARE_BUF(inbuf, MC_CMD_TRIGGER_INTERRUPT_IN_LEN);
1705 BUILD_BUG_ON(MC_CMD_TRIGGER_INTERRUPT_OUT_LEN != 0);
1707 MCDI_SET_DWORD(inbuf, TRIGGER_INTERRUPT_IN_INTR_LEVEL, efx->irq_level);
1708 (void) efx_mcdi_rpc(efx, MC_CMD_TRIGGER_INTERRUPT,
1709 inbuf, sizeof(inbuf), NULL, 0, NULL);
1712 static int efx_ef10_tx_probe(struct efx_tx_queue *tx_queue)
1714 return efx_nic_alloc_buffer(tx_queue->efx, &tx_queue->txd.buf,
1715 (tx_queue->ptr_mask + 1) *
1716 sizeof(efx_qword_t),
1720 /* This writes to the TX_DESC_WPTR and also pushes data */
1721 static inline void efx_ef10_push_tx_desc(struct efx_tx_queue *tx_queue,
1722 const efx_qword_t *txd)
1724 unsigned int write_ptr;
1727 write_ptr = tx_queue->write_count & tx_queue->ptr_mask;
1728 EFX_POPULATE_OWORD_1(reg, ERF_DZ_TX_DESC_WPTR, write_ptr);
1729 reg.qword[0] = *txd;
1730 efx_writeo_page(tx_queue->efx, ®,
1731 ER_DZ_TX_DESC_UPD, tx_queue->queue);
1734 static void efx_ef10_tx_init(struct efx_tx_queue *tx_queue)
1736 MCDI_DECLARE_BUF(inbuf, MC_CMD_INIT_TXQ_IN_LEN(EFX_MAX_DMAQ_SIZE * 8 /
1738 bool csum_offload = tx_queue->queue & EFX_TXQ_TYPE_OFFLOAD;
1739 size_t entries = tx_queue->txd.buf.len / EFX_BUF_SIZE;
1740 struct efx_channel *channel = tx_queue->channel;
1741 struct efx_nic *efx = tx_queue->efx;
1742 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1744 dma_addr_t dma_addr;
1748 BUILD_BUG_ON(MC_CMD_INIT_TXQ_OUT_LEN != 0);
1750 MCDI_SET_DWORD(inbuf, INIT_TXQ_IN_SIZE, tx_queue->ptr_mask + 1);
1751 MCDI_SET_DWORD(inbuf, INIT_TXQ_IN_TARGET_EVQ, channel->channel);
1752 MCDI_SET_DWORD(inbuf, INIT_TXQ_IN_LABEL, tx_queue->queue);
1753 MCDI_SET_DWORD(inbuf, INIT_TXQ_IN_INSTANCE, tx_queue->queue);
1754 MCDI_POPULATE_DWORD_2(inbuf, INIT_TXQ_IN_FLAGS,
1755 INIT_TXQ_IN_FLAG_IP_CSUM_DIS, !csum_offload,
1756 INIT_TXQ_IN_FLAG_TCP_CSUM_DIS, !csum_offload);
1757 MCDI_SET_DWORD(inbuf, INIT_TXQ_IN_OWNER_ID, 0);
1758 MCDI_SET_DWORD(inbuf, INIT_TXQ_IN_PORT_ID, nic_data->vport_id);
1760 dma_addr = tx_queue->txd.buf.dma_addr;
1762 netif_dbg(efx, hw, efx->net_dev, "pushing TXQ %d. %zu entries (%llx)\n",
1763 tx_queue->queue, entries, (u64)dma_addr);
1765 for (i = 0; i < entries; ++i) {
1766 MCDI_SET_ARRAY_QWORD(inbuf, INIT_TXQ_IN_DMA_ADDR, i, dma_addr);
1767 dma_addr += EFX_BUF_SIZE;
1770 inlen = MC_CMD_INIT_TXQ_IN_LEN(entries);
1772 rc = efx_mcdi_rpc(efx, MC_CMD_INIT_TXQ, inbuf, inlen,
1777 /* A previous user of this TX queue might have set us up the
1778 * bomb by writing a descriptor to the TX push collector but
1779 * not the doorbell. (Each collector belongs to a port, not a
1780 * queue or function, so cannot easily be reset.) We must
1781 * attempt to push a no-op descriptor in its place.
1783 tx_queue->buffer[0].flags = EFX_TX_BUF_OPTION;
1784 tx_queue->insert_count = 1;
1785 txd = efx_tx_desc(tx_queue, 0);
1786 EFX_POPULATE_QWORD_4(*txd,
1787 ESF_DZ_TX_DESC_IS_OPT, true,
1788 ESF_DZ_TX_OPTION_TYPE,
1789 ESE_DZ_TX_OPTION_DESC_CRC_CSUM,
1790 ESF_DZ_TX_OPTION_UDP_TCP_CSUM, csum_offload,
1791 ESF_DZ_TX_OPTION_IP_CSUM, csum_offload);
1792 tx_queue->write_count = 1;
1794 if (nic_data->datapath_caps &
1795 (1 << MC_CMD_GET_CAPABILITIES_OUT_TX_TSO_LBN)) {
1796 tx_queue->tso_version = 1;
1800 efx_ef10_push_tx_desc(tx_queue, txd);
1805 netdev_WARN(efx->net_dev, "failed to initialise TXQ %d\n",
1809 static void efx_ef10_tx_fini(struct efx_tx_queue *tx_queue)
1811 MCDI_DECLARE_BUF(inbuf, MC_CMD_FINI_TXQ_IN_LEN);
1812 MCDI_DECLARE_BUF_ERR(outbuf);
1813 struct efx_nic *efx = tx_queue->efx;
1817 MCDI_SET_DWORD(inbuf, FINI_TXQ_IN_INSTANCE,
1820 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_FINI_TXQ, inbuf, sizeof(inbuf),
1821 outbuf, sizeof(outbuf), &outlen);
1823 if (rc && rc != -EALREADY)
1829 efx_mcdi_display_error(efx, MC_CMD_FINI_TXQ, MC_CMD_FINI_TXQ_IN_LEN,
1830 outbuf, outlen, rc);
1833 static void efx_ef10_tx_remove(struct efx_tx_queue *tx_queue)
1835 efx_nic_free_buffer(tx_queue->efx, &tx_queue->txd.buf);
1838 /* This writes to the TX_DESC_WPTR; write pointer for TX descriptor ring */
1839 static inline void efx_ef10_notify_tx_desc(struct efx_tx_queue *tx_queue)
1841 unsigned int write_ptr;
1844 write_ptr = tx_queue->write_count & tx_queue->ptr_mask;
1845 EFX_POPULATE_DWORD_1(reg, ERF_DZ_TX_DESC_WPTR_DWORD, write_ptr);
1846 efx_writed_page(tx_queue->efx, ®,
1847 ER_DZ_TX_DESC_UPD_DWORD, tx_queue->queue);
1850 static void efx_ef10_tx_write(struct efx_tx_queue *tx_queue)
1852 unsigned int old_write_count = tx_queue->write_count;
1853 struct efx_tx_buffer *buffer;
1854 unsigned int write_ptr;
1857 tx_queue->xmit_more_available = false;
1858 if (unlikely(tx_queue->write_count == tx_queue->insert_count))
1862 write_ptr = tx_queue->write_count & tx_queue->ptr_mask;
1863 buffer = &tx_queue->buffer[write_ptr];
1864 txd = efx_tx_desc(tx_queue, write_ptr);
1865 ++tx_queue->write_count;
1867 /* Create TX descriptor ring entry */
1868 if (buffer->flags & EFX_TX_BUF_OPTION) {
1869 *txd = buffer->option;
1871 BUILD_BUG_ON(EFX_TX_BUF_CONT != 1);
1872 EFX_POPULATE_QWORD_3(
1875 buffer->flags & EFX_TX_BUF_CONT,
1876 ESF_DZ_TX_KER_BYTE_CNT, buffer->len,
1877 ESF_DZ_TX_KER_BUF_ADDR, buffer->dma_addr);
1879 } while (tx_queue->write_count != tx_queue->insert_count);
1881 wmb(); /* Ensure descriptors are written before they are fetched */
1883 if (efx_nic_may_push_tx_desc(tx_queue, old_write_count)) {
1884 txd = efx_tx_desc(tx_queue,
1885 old_write_count & tx_queue->ptr_mask);
1886 efx_ef10_push_tx_desc(tx_queue, txd);
1889 efx_ef10_notify_tx_desc(tx_queue);
1893 static int efx_ef10_alloc_rss_context(struct efx_nic *efx, u32 *context,
1894 bool exclusive, unsigned *context_size)
1896 MCDI_DECLARE_BUF(inbuf, MC_CMD_RSS_CONTEXT_ALLOC_IN_LEN);
1897 MCDI_DECLARE_BUF(outbuf, MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN);
1898 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1901 u32 alloc_type = exclusive ?
1902 MC_CMD_RSS_CONTEXT_ALLOC_IN_TYPE_EXCLUSIVE :
1903 MC_CMD_RSS_CONTEXT_ALLOC_IN_TYPE_SHARED;
1904 unsigned rss_spread = exclusive ?
1906 min(rounddown_pow_of_two(efx->rss_spread),
1907 EFX_EF10_MAX_SHARED_RSS_CONTEXT_SIZE);
1909 if (!exclusive && rss_spread == 1) {
1910 *context = EFX_EF10_RSS_CONTEXT_INVALID;
1916 MCDI_SET_DWORD(inbuf, RSS_CONTEXT_ALLOC_IN_UPSTREAM_PORT_ID,
1917 nic_data->vport_id);
1918 MCDI_SET_DWORD(inbuf, RSS_CONTEXT_ALLOC_IN_TYPE, alloc_type);
1919 MCDI_SET_DWORD(inbuf, RSS_CONTEXT_ALLOC_IN_NUM_QUEUES, rss_spread);
1921 rc = efx_mcdi_rpc(efx, MC_CMD_RSS_CONTEXT_ALLOC, inbuf, sizeof(inbuf),
1922 outbuf, sizeof(outbuf), &outlen);
1926 if (outlen < MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN)
1929 *context = MCDI_DWORD(outbuf, RSS_CONTEXT_ALLOC_OUT_RSS_CONTEXT_ID);
1932 *context_size = rss_spread;
1937 static void efx_ef10_free_rss_context(struct efx_nic *efx, u32 context)
1939 MCDI_DECLARE_BUF(inbuf, MC_CMD_RSS_CONTEXT_FREE_IN_LEN);
1942 MCDI_SET_DWORD(inbuf, RSS_CONTEXT_FREE_IN_RSS_CONTEXT_ID,
1945 rc = efx_mcdi_rpc(efx, MC_CMD_RSS_CONTEXT_FREE, inbuf, sizeof(inbuf),
1950 static int efx_ef10_populate_rss_table(struct efx_nic *efx, u32 context,
1951 const u32 *rx_indir_table)
1953 MCDI_DECLARE_BUF(tablebuf, MC_CMD_RSS_CONTEXT_SET_TABLE_IN_LEN);
1954 MCDI_DECLARE_BUF(keybuf, MC_CMD_RSS_CONTEXT_SET_KEY_IN_LEN);
1957 MCDI_SET_DWORD(tablebuf, RSS_CONTEXT_SET_TABLE_IN_RSS_CONTEXT_ID,
1959 BUILD_BUG_ON(ARRAY_SIZE(efx->rx_indir_table) !=
1960 MC_CMD_RSS_CONTEXT_SET_TABLE_IN_INDIRECTION_TABLE_LEN);
1962 for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); ++i)
1964 RSS_CONTEXT_SET_TABLE_IN_INDIRECTION_TABLE)[i] =
1965 (u8) rx_indir_table[i];
1967 rc = efx_mcdi_rpc(efx, MC_CMD_RSS_CONTEXT_SET_TABLE, tablebuf,
1968 sizeof(tablebuf), NULL, 0, NULL);
1972 MCDI_SET_DWORD(keybuf, RSS_CONTEXT_SET_KEY_IN_RSS_CONTEXT_ID,
1974 BUILD_BUG_ON(ARRAY_SIZE(efx->rx_hash_key) !=
1975 MC_CMD_RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY_LEN);
1976 for (i = 0; i < ARRAY_SIZE(efx->rx_hash_key); ++i)
1977 MCDI_PTR(keybuf, RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY)[i] =
1978 efx->rx_hash_key[i];
1980 return efx_mcdi_rpc(efx, MC_CMD_RSS_CONTEXT_SET_KEY, keybuf,
1981 sizeof(keybuf), NULL, 0, NULL);
1984 static void efx_ef10_rx_free_indir_table(struct efx_nic *efx)
1986 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1988 if (nic_data->rx_rss_context != EFX_EF10_RSS_CONTEXT_INVALID)
1989 efx_ef10_free_rss_context(efx, nic_data->rx_rss_context);
1990 nic_data->rx_rss_context = EFX_EF10_RSS_CONTEXT_INVALID;
1993 static int efx_ef10_rx_push_shared_rss_config(struct efx_nic *efx,
1994 unsigned *context_size)
1996 u32 new_rx_rss_context;
1997 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1998 int rc = efx_ef10_alloc_rss_context(efx, &new_rx_rss_context,
1999 false, context_size);
2004 nic_data->rx_rss_context = new_rx_rss_context;
2005 nic_data->rx_rss_context_exclusive = false;
2006 efx_set_default_rx_indir_table(efx);
2010 static int efx_ef10_rx_push_exclusive_rss_config(struct efx_nic *efx,
2011 const u32 *rx_indir_table)
2013 struct efx_ef10_nic_data *nic_data = efx->nic_data;
2015 u32 new_rx_rss_context;
2017 if (nic_data->rx_rss_context == EFX_EF10_RSS_CONTEXT_INVALID ||
2018 !nic_data->rx_rss_context_exclusive) {
2019 rc = efx_ef10_alloc_rss_context(efx, &new_rx_rss_context,
2021 if (rc == -EOPNOTSUPP)
2026 new_rx_rss_context = nic_data->rx_rss_context;
2029 rc = efx_ef10_populate_rss_table(efx, new_rx_rss_context,
2034 if (nic_data->rx_rss_context != new_rx_rss_context)
2035 efx_ef10_rx_free_indir_table(efx);
2036 nic_data->rx_rss_context = new_rx_rss_context;
2037 nic_data->rx_rss_context_exclusive = true;
2038 if (rx_indir_table != efx->rx_indir_table)
2039 memcpy(efx->rx_indir_table, rx_indir_table,
2040 sizeof(efx->rx_indir_table));
2044 if (new_rx_rss_context != nic_data->rx_rss_context)
2045 efx_ef10_free_rss_context(efx, new_rx_rss_context);
2047 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
2051 static int efx_ef10_pf_rx_push_rss_config(struct efx_nic *efx, bool user,
2052 const u32 *rx_indir_table)
2056 if (efx->rss_spread == 1)
2059 rc = efx_ef10_rx_push_exclusive_rss_config(efx, rx_indir_table);
2061 if (rc == -ENOBUFS && !user) {
2062 unsigned context_size;
2063 bool mismatch = false;
2066 for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table) && !mismatch;
2068 mismatch = rx_indir_table[i] !=
2069 ethtool_rxfh_indir_default(i, efx->rss_spread);
2071 rc = efx_ef10_rx_push_shared_rss_config(efx, &context_size);
2073 if (context_size != efx->rss_spread)
2074 netif_warn(efx, probe, efx->net_dev,
2075 "Could not allocate an exclusive RSS"
2076 " context; allocated a shared one of"
2078 " Wanted %u, got %u.\n",
2079 efx->rss_spread, context_size);
2081 netif_warn(efx, probe, efx->net_dev,
2082 "Could not allocate an exclusive RSS"
2083 " context; allocated a shared one but"
2084 " could not apply custom"
2087 netif_info(efx, probe, efx->net_dev,
2088 "Could not allocate an exclusive RSS"
2089 " context; allocated a shared one.\n");
2095 static int efx_ef10_vf_rx_push_rss_config(struct efx_nic *efx, bool user,
2096 const u32 *rx_indir_table
2097 __attribute__ ((unused)))
2099 struct efx_ef10_nic_data *nic_data = efx->nic_data;
2103 if (nic_data->rx_rss_context != EFX_EF10_RSS_CONTEXT_INVALID)
2105 return efx_ef10_rx_push_shared_rss_config(efx, NULL);
2108 static int efx_ef10_rx_probe(struct efx_rx_queue *rx_queue)
2110 return efx_nic_alloc_buffer(rx_queue->efx, &rx_queue->rxd.buf,
2111 (rx_queue->ptr_mask + 1) *
2112 sizeof(efx_qword_t),
2116 static void efx_ef10_rx_init(struct efx_rx_queue *rx_queue)
2118 MCDI_DECLARE_BUF(inbuf,
2119 MC_CMD_INIT_RXQ_IN_LEN(EFX_MAX_DMAQ_SIZE * 8 /
2121 struct efx_channel *channel = efx_rx_queue_channel(rx_queue);
2122 size_t entries = rx_queue->rxd.buf.len / EFX_BUF_SIZE;
2123 struct efx_nic *efx = rx_queue->efx;
2124 struct efx_ef10_nic_data *nic_data = efx->nic_data;
2126 dma_addr_t dma_addr;
2129 BUILD_BUG_ON(MC_CMD_INIT_RXQ_OUT_LEN != 0);
2131 rx_queue->scatter_n = 0;
2132 rx_queue->scatter_len = 0;
2134 MCDI_SET_DWORD(inbuf, INIT_RXQ_IN_SIZE, rx_queue->ptr_mask + 1);
2135 MCDI_SET_DWORD(inbuf, INIT_RXQ_IN_TARGET_EVQ, channel->channel);
2136 MCDI_SET_DWORD(inbuf, INIT_RXQ_IN_LABEL, efx_rx_queue_index(rx_queue));
2137 MCDI_SET_DWORD(inbuf, INIT_RXQ_IN_INSTANCE,
2138 efx_rx_queue_index(rx_queue));
2139 MCDI_POPULATE_DWORD_2(inbuf, INIT_RXQ_IN_FLAGS,
2140 INIT_RXQ_IN_FLAG_PREFIX, 1,
2141 INIT_RXQ_IN_FLAG_TIMESTAMP, 1);
2142 MCDI_SET_DWORD(inbuf, INIT_RXQ_IN_OWNER_ID, 0);
2143 MCDI_SET_DWORD(inbuf, INIT_RXQ_IN_PORT_ID, nic_data->vport_id);
2145 dma_addr = rx_queue->rxd.buf.dma_addr;
2147 netif_dbg(efx, hw, efx->net_dev, "pushing RXQ %d. %zu entries (%llx)\n",
2148 efx_rx_queue_index(rx_queue), entries, (u64)dma_addr);
2150 for (i = 0; i < entries; ++i) {
2151 MCDI_SET_ARRAY_QWORD(inbuf, INIT_RXQ_IN_DMA_ADDR, i, dma_addr);
2152 dma_addr += EFX_BUF_SIZE;
2155 inlen = MC_CMD_INIT_RXQ_IN_LEN(entries);
2157 rc = efx_mcdi_rpc(efx, MC_CMD_INIT_RXQ, inbuf, inlen,
2160 netdev_WARN(efx->net_dev, "failed to initialise RXQ %d\n",
2161 efx_rx_queue_index(rx_queue));
2164 static void efx_ef10_rx_fini(struct efx_rx_queue *rx_queue)
2166 MCDI_DECLARE_BUF(inbuf, MC_CMD_FINI_RXQ_IN_LEN);
2167 MCDI_DECLARE_BUF_ERR(outbuf);
2168 struct efx_nic *efx = rx_queue->efx;
2172 MCDI_SET_DWORD(inbuf, FINI_RXQ_IN_INSTANCE,
2173 efx_rx_queue_index(rx_queue));
2175 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_FINI_RXQ, inbuf, sizeof(inbuf),
2176 outbuf, sizeof(outbuf), &outlen);
2178 if (rc && rc != -EALREADY)
2184 efx_mcdi_display_error(efx, MC_CMD_FINI_RXQ, MC_CMD_FINI_RXQ_IN_LEN,
2185 outbuf, outlen, rc);
2188 static void efx_ef10_rx_remove(struct efx_rx_queue *rx_queue)
2190 efx_nic_free_buffer(rx_queue->efx, &rx_queue->rxd.buf);
2193 /* This creates an entry in the RX descriptor queue */
2195 efx_ef10_build_rx_desc(struct efx_rx_queue *rx_queue, unsigned int index)
2197 struct efx_rx_buffer *rx_buf;
2200 rxd = efx_rx_desc(rx_queue, index);
2201 rx_buf = efx_rx_buffer(rx_queue, index);
2202 EFX_POPULATE_QWORD_2(*rxd,
2203 ESF_DZ_RX_KER_BYTE_CNT, rx_buf->len,
2204 ESF_DZ_RX_KER_BUF_ADDR, rx_buf->dma_addr);
2207 static void efx_ef10_rx_write(struct efx_rx_queue *rx_queue)
2209 struct efx_nic *efx = rx_queue->efx;
2210 unsigned int write_count;
2213 /* Firmware requires that RX_DESC_WPTR be a multiple of 8 */
2214 write_count = rx_queue->added_count & ~7;
2215 if (rx_queue->notified_count == write_count)
2219 efx_ef10_build_rx_desc(
2221 rx_queue->notified_count & rx_queue->ptr_mask);
2222 while (++rx_queue->notified_count != write_count);
2225 EFX_POPULATE_DWORD_1(reg, ERF_DZ_RX_DESC_WPTR,
2226 write_count & rx_queue->ptr_mask);
2227 efx_writed_page(efx, ®, ER_DZ_RX_DESC_UPD,
2228 efx_rx_queue_index(rx_queue));
2231 static efx_mcdi_async_completer efx_ef10_rx_defer_refill_complete;
2233 static void efx_ef10_rx_defer_refill(struct efx_rx_queue *rx_queue)
2235 struct efx_channel *channel = efx_rx_queue_channel(rx_queue);
2236 MCDI_DECLARE_BUF(inbuf, MC_CMD_DRIVER_EVENT_IN_LEN);
2239 EFX_POPULATE_QWORD_2(event,
2240 ESF_DZ_EV_CODE, EFX_EF10_DRVGEN_EV,
2241 ESF_DZ_EV_DATA, EFX_EF10_REFILL);
2243 MCDI_SET_DWORD(inbuf, DRIVER_EVENT_IN_EVQ, channel->channel);
2245 /* MCDI_SET_QWORD is not appropriate here since EFX_POPULATE_* has
2246 * already swapped the data to little-endian order.
2248 memcpy(MCDI_PTR(inbuf, DRIVER_EVENT_IN_DATA), &event.u64[0],
2249 sizeof(efx_qword_t));
2251 efx_mcdi_rpc_async(channel->efx, MC_CMD_DRIVER_EVENT,
2252 inbuf, sizeof(inbuf), 0,
2253 efx_ef10_rx_defer_refill_complete, 0);
2257 efx_ef10_rx_defer_refill_complete(struct efx_nic *efx, unsigned long cookie,
2258 int rc, efx_dword_t *outbuf,
2259 size_t outlen_actual)
2264 static int efx_ef10_ev_probe(struct efx_channel *channel)
2266 return efx_nic_alloc_buffer(channel->efx, &channel->eventq.buf,
2267 (channel->eventq_mask + 1) *
2268 sizeof(efx_qword_t),
2272 static void efx_ef10_ev_fini(struct efx_channel *channel)
2274 MCDI_DECLARE_BUF(inbuf, MC_CMD_FINI_EVQ_IN_LEN);
2275 MCDI_DECLARE_BUF_ERR(outbuf);
2276 struct efx_nic *efx = channel->efx;
2280 MCDI_SET_DWORD(inbuf, FINI_EVQ_IN_INSTANCE, channel->channel);
2282 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_FINI_EVQ, inbuf, sizeof(inbuf),
2283 outbuf, sizeof(outbuf), &outlen);
2285 if (rc && rc != -EALREADY)
2291 efx_mcdi_display_error(efx, MC_CMD_FINI_EVQ, MC_CMD_FINI_EVQ_IN_LEN,
2292 outbuf, outlen, rc);
2295 static int efx_ef10_ev_init(struct efx_channel *channel)
2297 MCDI_DECLARE_BUF(inbuf,
2298 MC_CMD_INIT_EVQ_IN_LEN(EFX_MAX_EVQ_SIZE * 8 /
2300 MCDI_DECLARE_BUF(outbuf, MC_CMD_INIT_EVQ_OUT_LEN);
2301 size_t entries = channel->eventq.buf.len / EFX_BUF_SIZE;
2302 struct efx_nic *efx = channel->efx;
2303 struct efx_ef10_nic_data *nic_data;
2304 bool supports_rx_merge;
2305 size_t inlen, outlen;
2306 unsigned int enabled, implemented;
2307 dma_addr_t dma_addr;
2311 nic_data = efx->nic_data;
2313 !!(nic_data->datapath_caps &
2314 1 << MC_CMD_GET_CAPABILITIES_OUT_RX_BATCHING_LBN);
2316 /* Fill event queue with all ones (i.e. empty events) */
2317 memset(channel->eventq.buf.addr, 0xff, channel->eventq.buf.len);
2319 MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_SIZE, channel->eventq_mask + 1);
2320 MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_INSTANCE, channel->channel);
2321 /* INIT_EVQ expects index in vector table, not absolute */
2322 MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_IRQ_NUM, channel->channel);
2323 MCDI_POPULATE_DWORD_4(inbuf, INIT_EVQ_IN_FLAGS,
2324 INIT_EVQ_IN_FLAG_INTERRUPTING, 1,
2325 INIT_EVQ_IN_FLAG_RX_MERGE, 1,
2326 INIT_EVQ_IN_FLAG_TX_MERGE, 1,
2327 INIT_EVQ_IN_FLAG_CUT_THRU, !supports_rx_merge);
2328 MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_TMR_MODE,
2329 MC_CMD_INIT_EVQ_IN_TMR_MODE_DIS);
2330 MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_TMR_LOAD, 0);
2331 MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_TMR_RELOAD, 0);
2332 MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_COUNT_MODE,
2333 MC_CMD_INIT_EVQ_IN_COUNT_MODE_DIS);
2334 MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_COUNT_THRSHLD, 0);
2336 dma_addr = channel->eventq.buf.dma_addr;
2337 for (i = 0; i < entries; ++i) {
2338 MCDI_SET_ARRAY_QWORD(inbuf, INIT_EVQ_IN_DMA_ADDR, i, dma_addr);
2339 dma_addr += EFX_BUF_SIZE;
2342 inlen = MC_CMD_INIT_EVQ_IN_LEN(entries);
2344 rc = efx_mcdi_rpc(efx, MC_CMD_INIT_EVQ, inbuf, inlen,
2345 outbuf, sizeof(outbuf), &outlen);
2346 /* IRQ return is ignored */
2347 if (channel->channel || rc)
2350 /* Successfully created event queue on channel 0 */
2351 rc = efx_mcdi_get_workarounds(efx, &implemented, &enabled);
2352 if (rc == -ENOSYS) {
2353 /* GET_WORKAROUNDS was implemented before the bug26807
2354 * workaround, thus the latter must be unavailable in this fw
2356 nic_data->workaround_26807 = false;
2361 nic_data->workaround_26807 =
2362 !!(enabled & MC_CMD_GET_WORKAROUNDS_OUT_BUG26807);
2364 if (implemented & MC_CMD_GET_WORKAROUNDS_OUT_BUG26807 &&
2365 !nic_data->workaround_26807) {
2368 rc = efx_mcdi_set_workaround(efx,
2369 MC_CMD_WORKAROUND_BUG26807,
2374 1 << MC_CMD_WORKAROUND_EXT_OUT_FLR_DONE_LBN) {
2375 netif_info(efx, drv, efx->net_dev,
2376 "other functions on NIC have been reset\n");
2378 /* With MCFW v4.6.x and earlier, the
2379 * boot count will have incremented,
2380 * so re-read the warm_boot_count
2381 * value now to ensure this function
2382 * doesn't think it has changed next
2385 rc = efx_ef10_get_warm_boot_count(efx);
2387 nic_data->warm_boot_count = rc;
2391 nic_data->workaround_26807 = true;
2392 } else if (rc == -EPERM) {
2402 efx_ef10_ev_fini(channel);
2406 static void efx_ef10_ev_remove(struct efx_channel *channel)
2408 efx_nic_free_buffer(channel->efx, &channel->eventq.buf);
2411 static void efx_ef10_handle_rx_wrong_queue(struct efx_rx_queue *rx_queue,
2412 unsigned int rx_queue_label)
2414 struct efx_nic *efx = rx_queue->efx;
2416 netif_info(efx, hw, efx->net_dev,
2417 "rx event arrived on queue %d labeled as queue %u\n",
2418 efx_rx_queue_index(rx_queue), rx_queue_label);
2420 efx_schedule_reset(efx, RESET_TYPE_DISABLE);
2424 efx_ef10_handle_rx_bad_lbits(struct efx_rx_queue *rx_queue,
2425 unsigned int actual, unsigned int expected)
2427 unsigned int dropped = (actual - expected) & rx_queue->ptr_mask;
2428 struct efx_nic *efx = rx_queue->efx;
2430 netif_info(efx, hw, efx->net_dev,
2431 "dropped %d events (index=%d expected=%d)\n",
2432 dropped, actual, expected);
2434 efx_schedule_reset(efx, RESET_TYPE_DISABLE);
2437 /* partially received RX was aborted. clean up. */
2438 static void efx_ef10_handle_rx_abort(struct efx_rx_queue *rx_queue)
2440 unsigned int rx_desc_ptr;
2442 netif_dbg(rx_queue->efx, hw, rx_queue->efx->net_dev,
2443 "scattered RX aborted (dropping %u buffers)\n",
2444 rx_queue->scatter_n);
2446 rx_desc_ptr = rx_queue->removed_count & rx_queue->ptr_mask;
2448 efx_rx_packet(rx_queue, rx_desc_ptr, rx_queue->scatter_n,
2449 0, EFX_RX_PKT_DISCARD);
2451 rx_queue->removed_count += rx_queue->scatter_n;
2452 rx_queue->scatter_n = 0;
2453 rx_queue->scatter_len = 0;
2454 ++efx_rx_queue_channel(rx_queue)->n_rx_nodesc_trunc;
2457 static int efx_ef10_handle_rx_event(struct efx_channel *channel,
2458 const efx_qword_t *event)
2460 unsigned int rx_bytes, next_ptr_lbits, rx_queue_label, rx_l4_class;
2461 unsigned int n_descs, n_packets, i;
2462 struct efx_nic *efx = channel->efx;
2463 struct efx_rx_queue *rx_queue;
2467 if (unlikely(ACCESS_ONCE(efx->reset_pending)))
2470 /* Basic packet information */
2471 rx_bytes = EFX_QWORD_FIELD(*event, ESF_DZ_RX_BYTES);
2472 next_ptr_lbits = EFX_QWORD_FIELD(*event, ESF_DZ_RX_DSC_PTR_LBITS);
2473 rx_queue_label = EFX_QWORD_FIELD(*event, ESF_DZ_RX_QLABEL);
2474 rx_l4_class = EFX_QWORD_FIELD(*event, ESF_DZ_RX_L4_CLASS);
2475 rx_cont = EFX_QWORD_FIELD(*event, ESF_DZ_RX_CONT);
2477 if (EFX_QWORD_FIELD(*event, ESF_DZ_RX_DROP_EVENT))
2478 netdev_WARN(efx->net_dev, "saw RX_DROP_EVENT: event="
2480 EFX_QWORD_VAL(*event));
2482 rx_queue = efx_channel_get_rx_queue(channel);
2484 if (unlikely(rx_queue_label != efx_rx_queue_index(rx_queue)))
2485 efx_ef10_handle_rx_wrong_queue(rx_queue, rx_queue_label);
2487 n_descs = ((next_ptr_lbits - rx_queue->removed_count) &
2488 ((1 << ESF_DZ_RX_DSC_PTR_LBITS_WIDTH) - 1));
2490 if (n_descs != rx_queue->scatter_n + 1) {
2491 struct efx_ef10_nic_data *nic_data = efx->nic_data;
2493 /* detect rx abort */
2494 if (unlikely(n_descs == rx_queue->scatter_n)) {
2495 if (rx_queue->scatter_n == 0 || rx_bytes != 0)
2496 netdev_WARN(efx->net_dev,
2497 "invalid RX abort: scatter_n=%u event="
2499 rx_queue->scatter_n,
2500 EFX_QWORD_VAL(*event));
2501 efx_ef10_handle_rx_abort(rx_queue);
2505 /* Check that RX completion merging is valid, i.e.
2506 * the current firmware supports it and this is a
2507 * non-scattered packet.
2509 if (!(nic_data->datapath_caps &
2510 (1 << MC_CMD_GET_CAPABILITIES_OUT_RX_BATCHING_LBN)) ||
2511 rx_queue->scatter_n != 0 || rx_cont) {
2512 efx_ef10_handle_rx_bad_lbits(
2513 rx_queue, next_ptr_lbits,
2514 (rx_queue->removed_count +
2515 rx_queue->scatter_n + 1) &
2516 ((1 << ESF_DZ_RX_DSC_PTR_LBITS_WIDTH) - 1));
2520 /* Merged completion for multiple non-scattered packets */
2521 rx_queue->scatter_n = 1;
2522 rx_queue->scatter_len = 0;
2523 n_packets = n_descs;
2524 ++channel->n_rx_merge_events;
2525 channel->n_rx_merge_packets += n_packets;
2526 flags |= EFX_RX_PKT_PREFIX_LEN;
2528 ++rx_queue->scatter_n;
2529 rx_queue->scatter_len += rx_bytes;
2535 if (unlikely(EFX_QWORD_FIELD(*event, ESF_DZ_RX_ECRC_ERR)))
2536 flags |= EFX_RX_PKT_DISCARD;
2538 if (unlikely(EFX_QWORD_FIELD(*event, ESF_DZ_RX_IPCKSUM_ERR))) {
2539 channel->n_rx_ip_hdr_chksum_err += n_packets;
2540 } else if (unlikely(EFX_QWORD_FIELD(*event,
2541 ESF_DZ_RX_TCPUDP_CKSUM_ERR))) {
2542 channel->n_rx_tcp_udp_chksum_err += n_packets;
2543 } else if (rx_l4_class == ESE_DZ_L4_CLASS_TCP ||
2544 rx_l4_class == ESE_DZ_L4_CLASS_UDP) {
2545 flags |= EFX_RX_PKT_CSUMMED;
2548 if (rx_l4_class == ESE_DZ_L4_CLASS_TCP)
2549 flags |= EFX_RX_PKT_TCP;
2551 channel->irq_mod_score += 2 * n_packets;
2553 /* Handle received packet(s) */
2554 for (i = 0; i < n_packets; i++) {
2555 efx_rx_packet(rx_queue,
2556 rx_queue->removed_count & rx_queue->ptr_mask,
2557 rx_queue->scatter_n, rx_queue->scatter_len,
2559 rx_queue->removed_count += rx_queue->scatter_n;
2562 rx_queue->scatter_n = 0;
2563 rx_queue->scatter_len = 0;
2569 efx_ef10_handle_tx_event(struct efx_channel *channel, efx_qword_t *event)
2571 struct efx_nic *efx = channel->efx;
2572 struct efx_tx_queue *tx_queue;
2573 unsigned int tx_ev_desc_ptr;
2574 unsigned int tx_ev_q_label;
2577 if (unlikely(ACCESS_ONCE(efx->reset_pending)))
2580 if (unlikely(EFX_QWORD_FIELD(*event, ESF_DZ_TX_DROP_EVENT)))
2583 /* Transmit completion */
2584 tx_ev_desc_ptr = EFX_QWORD_FIELD(*event, ESF_DZ_TX_DESCR_INDX);
2585 tx_ev_q_label = EFX_QWORD_FIELD(*event, ESF_DZ_TX_QLABEL);
2586 tx_queue = efx_channel_get_tx_queue(channel,
2587 tx_ev_q_label % EFX_TXQ_TYPES);
2588 tx_descs = ((tx_ev_desc_ptr + 1 - tx_queue->read_count) &
2589 tx_queue->ptr_mask);
2590 efx_xmit_done(tx_queue, tx_ev_desc_ptr & tx_queue->ptr_mask);
2596 efx_ef10_handle_driver_event(struct efx_channel *channel, efx_qword_t *event)
2598 struct efx_nic *efx = channel->efx;
2601 subcode = EFX_QWORD_FIELD(*event, ESF_DZ_DRV_SUB_CODE);
2604 case ESE_DZ_DRV_TIMER_EV:
2605 case ESE_DZ_DRV_WAKE_UP_EV:
2607 case ESE_DZ_DRV_START_UP_EV:
2608 /* event queue init complete. ok. */
2611 netif_err(efx, hw, efx->net_dev,
2612 "channel %d unknown driver event type %d"
2613 " (data " EFX_QWORD_FMT ")\n",
2614 channel->channel, subcode,
2615 EFX_QWORD_VAL(*event));
2620 static void efx_ef10_handle_driver_generated_event(struct efx_channel *channel,
2623 struct efx_nic *efx = channel->efx;
2626 subcode = EFX_QWORD_FIELD(*event, EFX_DWORD_0);
2630 channel->event_test_cpu = raw_smp_processor_id();
2632 case EFX_EF10_REFILL:
2633 /* The queue must be empty, so we won't receive any rx
2634 * events, so efx_process_channel() won't refill the
2635 * queue. Refill it here
2637 efx_fast_push_rx_descriptors(&channel->rx_queue, true);
2640 netif_err(efx, hw, efx->net_dev,
2641 "channel %d unknown driver event type %u"
2642 " (data " EFX_QWORD_FMT ")\n",
2643 channel->channel, (unsigned) subcode,
2644 EFX_QWORD_VAL(*event));
2648 static int efx_ef10_ev_process(struct efx_channel *channel, int quota)
2650 struct efx_nic *efx = channel->efx;
2651 efx_qword_t event, *p_event;
2652 unsigned int read_ptr;
2660 read_ptr = channel->eventq_read_ptr;
2663 p_event = efx_event(channel, read_ptr);
2666 if (!efx_event_present(&event))
2669 EFX_SET_QWORD(*p_event);
2673 ev_code = EFX_QWORD_FIELD(event, ESF_DZ_EV_CODE);
2675 netif_vdbg(efx, drv, efx->net_dev,
2676 "processing event on %d " EFX_QWORD_FMT "\n",
2677 channel->channel, EFX_QWORD_VAL(event));
2680 case ESE_DZ_EV_CODE_MCDI_EV:
2681 efx_mcdi_process_event(channel, &event);
2683 case ESE_DZ_EV_CODE_RX_EV:
2684 spent += efx_ef10_handle_rx_event(channel, &event);
2685 if (spent >= quota) {
2686 /* XXX can we split a merged event to
2687 * avoid going over-quota?
2693 case ESE_DZ_EV_CODE_TX_EV:
2694 tx_descs += efx_ef10_handle_tx_event(channel, &event);
2695 if (tx_descs > efx->txq_entries) {
2698 } else if (++spent == quota) {
2702 case ESE_DZ_EV_CODE_DRIVER_EV:
2703 efx_ef10_handle_driver_event(channel, &event);
2704 if (++spent == quota)
2707 case EFX_EF10_DRVGEN_EV:
2708 efx_ef10_handle_driver_generated_event(channel, &event);
2711 netif_err(efx, hw, efx->net_dev,
2712 "channel %d unknown event type %d"
2713 " (data " EFX_QWORD_FMT ")\n",
2714 channel->channel, ev_code,
2715 EFX_QWORD_VAL(event));
2720 channel->eventq_read_ptr = read_ptr;
2724 static void efx_ef10_ev_read_ack(struct efx_channel *channel)
2726 struct efx_nic *efx = channel->efx;
2729 if (EFX_EF10_WORKAROUND_35388(efx)) {
2730 BUILD_BUG_ON(EFX_MIN_EVQ_SIZE <
2731 (1 << ERF_DD_EVQ_IND_RPTR_WIDTH));
2732 BUILD_BUG_ON(EFX_MAX_EVQ_SIZE >
2733 (1 << 2 * ERF_DD_EVQ_IND_RPTR_WIDTH));
2735 EFX_POPULATE_DWORD_2(rptr, ERF_DD_EVQ_IND_RPTR_FLAGS,
2736 EFE_DD_EVQ_IND_RPTR_FLAGS_HIGH,
2737 ERF_DD_EVQ_IND_RPTR,
2738 (channel->eventq_read_ptr &
2739 channel->eventq_mask) >>
2740 ERF_DD_EVQ_IND_RPTR_WIDTH);
2741 efx_writed_page(efx, &rptr, ER_DD_EVQ_INDIRECT,
2743 EFX_POPULATE_DWORD_2(rptr, ERF_DD_EVQ_IND_RPTR_FLAGS,
2744 EFE_DD_EVQ_IND_RPTR_FLAGS_LOW,
2745 ERF_DD_EVQ_IND_RPTR,
2746 channel->eventq_read_ptr &
2747 ((1 << ERF_DD_EVQ_IND_RPTR_WIDTH) - 1));
2748 efx_writed_page(efx, &rptr, ER_DD_EVQ_INDIRECT,
2751 EFX_POPULATE_DWORD_1(rptr, ERF_DZ_EVQ_RPTR,
2752 channel->eventq_read_ptr &
2753 channel->eventq_mask);
2754 efx_writed_page(efx, &rptr, ER_DZ_EVQ_RPTR, channel->channel);
2758 static void efx_ef10_ev_test_generate(struct efx_channel *channel)
2760 MCDI_DECLARE_BUF(inbuf, MC_CMD_DRIVER_EVENT_IN_LEN);
2761 struct efx_nic *efx = channel->efx;
2765 EFX_POPULATE_QWORD_2(event,
2766 ESF_DZ_EV_CODE, EFX_EF10_DRVGEN_EV,
2767 ESF_DZ_EV_DATA, EFX_EF10_TEST);
2769 MCDI_SET_DWORD(inbuf, DRIVER_EVENT_IN_EVQ, channel->channel);
2771 /* MCDI_SET_QWORD is not appropriate here since EFX_POPULATE_* has
2772 * already swapped the data to little-endian order.
2774 memcpy(MCDI_PTR(inbuf, DRIVER_EVENT_IN_DATA), &event.u64[0],
2775 sizeof(efx_qword_t));
2777 rc = efx_mcdi_rpc(efx, MC_CMD_DRIVER_EVENT, inbuf, sizeof(inbuf),
2786 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
2789 void efx_ef10_handle_drain_event(struct efx_nic *efx)
2791 if (atomic_dec_and_test(&efx->active_queues))
2792 wake_up(&efx->flush_wq);
2794 WARN_ON(atomic_read(&efx->active_queues) < 0);
2797 static int efx_ef10_fini_dmaq(struct efx_nic *efx)
2799 struct efx_ef10_nic_data *nic_data = efx->nic_data;
2800 struct efx_channel *channel;
2801 struct efx_tx_queue *tx_queue;
2802 struct efx_rx_queue *rx_queue;
2805 /* If the MC has just rebooted, the TX/RX queues will have already been
2806 * torn down, but efx->active_queues needs to be set to zero.
2808 if (nic_data->must_realloc_vis) {
2809 atomic_set(&efx->active_queues, 0);
2813 /* Do not attempt to write to the NIC during EEH recovery */
2814 if (efx->state != STATE_RECOVERY) {
2815 efx_for_each_channel(channel, efx) {
2816 efx_for_each_channel_rx_queue(rx_queue, channel)
2817 efx_ef10_rx_fini(rx_queue);
2818 efx_for_each_channel_tx_queue(tx_queue, channel)
2819 efx_ef10_tx_fini(tx_queue);
2822 wait_event_timeout(efx->flush_wq,
2823 atomic_read(&efx->active_queues) == 0,
2824 msecs_to_jiffies(EFX_MAX_FLUSH_TIME));
2825 pending = atomic_read(&efx->active_queues);
2827 netif_err(efx, hw, efx->net_dev, "failed to flush %d queues\n",
2836 static void efx_ef10_prepare_flr(struct efx_nic *efx)
2838 atomic_set(&efx->active_queues, 0);
2841 static bool efx_ef10_filter_equal(const struct efx_filter_spec *left,
2842 const struct efx_filter_spec *right)
2844 if ((left->match_flags ^ right->match_flags) |
2845 ((left->flags ^ right->flags) &
2846 (EFX_FILTER_FLAG_RX | EFX_FILTER_FLAG_TX)))
2849 return memcmp(&left->outer_vid, &right->outer_vid,
2850 sizeof(struct efx_filter_spec) -
2851 offsetof(struct efx_filter_spec, outer_vid)) == 0;
2854 static unsigned int efx_ef10_filter_hash(const struct efx_filter_spec *spec)
2856 BUILD_BUG_ON(offsetof(struct efx_filter_spec, outer_vid) & 3);
2857 return jhash2((const u32 *)&spec->outer_vid,
2858 (sizeof(struct efx_filter_spec) -
2859 offsetof(struct efx_filter_spec, outer_vid)) / 4,
2861 /* XXX should we randomise the initval? */
2864 /* Decide whether a filter should be exclusive or else should allow
2865 * delivery to additional recipients. Currently we decide that
2866 * filters for specific local unicast MAC and IP addresses are
2869 static bool efx_ef10_filter_is_exclusive(const struct efx_filter_spec *spec)
2871 if (spec->match_flags & EFX_FILTER_MATCH_LOC_MAC &&
2872 !is_multicast_ether_addr(spec->loc_mac))
2875 if ((spec->match_flags &
2876 (EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_LOC_HOST)) ==
2877 (EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_LOC_HOST)) {
2878 if (spec->ether_type == htons(ETH_P_IP) &&
2879 !ipv4_is_multicast(spec->loc_host[0]))
2881 if (spec->ether_type == htons(ETH_P_IPV6) &&
2882 ((const u8 *)spec->loc_host)[0] != 0xff)
2889 static struct efx_filter_spec *
2890 efx_ef10_filter_entry_spec(const struct efx_ef10_filter_table *table,
2891 unsigned int filter_idx)
2893 return (struct efx_filter_spec *)(table->entry[filter_idx].spec &
2894 ~EFX_EF10_FILTER_FLAGS);
2898 efx_ef10_filter_entry_flags(const struct efx_ef10_filter_table *table,
2899 unsigned int filter_idx)
2901 return table->entry[filter_idx].spec & EFX_EF10_FILTER_FLAGS;
2905 efx_ef10_filter_set_entry(struct efx_ef10_filter_table *table,
2906 unsigned int filter_idx,
2907 const struct efx_filter_spec *spec,
2910 table->entry[filter_idx].spec = (unsigned long)spec | flags;
2913 static void efx_ef10_filter_push_prep(struct efx_nic *efx,
2914 const struct efx_filter_spec *spec,
2915 efx_dword_t *inbuf, u64 handle,
2918 struct efx_ef10_nic_data *nic_data = efx->nic_data;
2920 memset(inbuf, 0, MC_CMD_FILTER_OP_IN_LEN);
2923 MCDI_SET_DWORD(inbuf, FILTER_OP_IN_OP,
2924 MC_CMD_FILTER_OP_IN_OP_REPLACE);
2925 MCDI_SET_QWORD(inbuf, FILTER_OP_IN_HANDLE, handle);
2927 u32 match_fields = 0;
2929 MCDI_SET_DWORD(inbuf, FILTER_OP_IN_OP,
2930 efx_ef10_filter_is_exclusive(spec) ?
2931 MC_CMD_FILTER_OP_IN_OP_INSERT :
2932 MC_CMD_FILTER_OP_IN_OP_SUBSCRIBE);
2934 /* Convert match flags and values. Unlike almost
2935 * everything else in MCDI, these fields are in
2936 * network byte order.
2938 if (spec->match_flags & EFX_FILTER_MATCH_LOC_MAC_IG)
2940 is_multicast_ether_addr(spec->loc_mac) ?
2941 1 << MC_CMD_FILTER_OP_IN_MATCH_UNKNOWN_MCAST_DST_LBN :
2942 1 << MC_CMD_FILTER_OP_IN_MATCH_UNKNOWN_UCAST_DST_LBN;
2943 #define COPY_FIELD(gen_flag, gen_field, mcdi_field) \
2944 if (spec->match_flags & EFX_FILTER_MATCH_ ## gen_flag) { \
2946 1 << MC_CMD_FILTER_OP_IN_MATCH_ ## \
2947 mcdi_field ## _LBN; \
2949 MC_CMD_FILTER_OP_IN_ ## mcdi_field ## _LEN < \
2950 sizeof(spec->gen_field)); \
2951 memcpy(MCDI_PTR(inbuf, FILTER_OP_IN_ ## mcdi_field), \
2952 &spec->gen_field, sizeof(spec->gen_field)); \
2954 COPY_FIELD(REM_HOST, rem_host, SRC_IP);
2955 COPY_FIELD(LOC_HOST, loc_host, DST_IP);
2956 COPY_FIELD(REM_MAC, rem_mac, SRC_MAC);
2957 COPY_FIELD(REM_PORT, rem_port, SRC_PORT);
2958 COPY_FIELD(LOC_MAC, loc_mac, DST_MAC);
2959 COPY_FIELD(LOC_PORT, loc_port, DST_PORT);
2960 COPY_FIELD(ETHER_TYPE, ether_type, ETHER_TYPE);
2961 COPY_FIELD(INNER_VID, inner_vid, INNER_VLAN);
2962 COPY_FIELD(OUTER_VID, outer_vid, OUTER_VLAN);
2963 COPY_FIELD(IP_PROTO, ip_proto, IP_PROTO);
2965 MCDI_SET_DWORD(inbuf, FILTER_OP_IN_MATCH_FIELDS,
2969 MCDI_SET_DWORD(inbuf, FILTER_OP_IN_PORT_ID, nic_data->vport_id);
2970 MCDI_SET_DWORD(inbuf, FILTER_OP_IN_RX_DEST,
2971 spec->dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP ?
2972 MC_CMD_FILTER_OP_IN_RX_DEST_DROP :
2973 MC_CMD_FILTER_OP_IN_RX_DEST_HOST);
2974 MCDI_SET_DWORD(inbuf, FILTER_OP_IN_TX_DOMAIN, 0);
2975 MCDI_SET_DWORD(inbuf, FILTER_OP_IN_TX_DEST,
2976 MC_CMD_FILTER_OP_IN_TX_DEST_DEFAULT);
2977 MCDI_SET_DWORD(inbuf, FILTER_OP_IN_RX_QUEUE,
2978 spec->dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP ?
2980 MCDI_SET_DWORD(inbuf, FILTER_OP_IN_RX_MODE,
2981 (spec->flags & EFX_FILTER_FLAG_RX_RSS) ?
2982 MC_CMD_FILTER_OP_IN_RX_MODE_RSS :
2983 MC_CMD_FILTER_OP_IN_RX_MODE_SIMPLE);
2984 if (spec->flags & EFX_FILTER_FLAG_RX_RSS)
2985 MCDI_SET_DWORD(inbuf, FILTER_OP_IN_RX_CONTEXT,
2986 spec->rss_context !=
2987 EFX_FILTER_RSS_CONTEXT_DEFAULT ?
2988 spec->rss_context : nic_data->rx_rss_context);
2991 static int efx_ef10_filter_push(struct efx_nic *efx,
2992 const struct efx_filter_spec *spec,
2993 u64 *handle, bool replacing)
2995 MCDI_DECLARE_BUF(inbuf, MC_CMD_FILTER_OP_IN_LEN);
2996 MCDI_DECLARE_BUF(outbuf, MC_CMD_FILTER_OP_OUT_LEN);
2999 efx_ef10_filter_push_prep(efx, spec, inbuf, *handle, replacing);
3000 rc = efx_mcdi_rpc(efx, MC_CMD_FILTER_OP, inbuf, sizeof(inbuf),
3001 outbuf, sizeof(outbuf), NULL);
3003 *handle = MCDI_QWORD(outbuf, FILTER_OP_OUT_HANDLE);
3005 rc = -EBUSY; /* to match efx_farch_filter_insert() */
3009 static int efx_ef10_filter_rx_match_pri(struct efx_ef10_filter_table *table,
3010 enum efx_filter_match_flags match_flags)
3012 unsigned int match_pri;
3015 match_pri < table->rx_match_count;
3017 if (table->rx_match_flags[match_pri] == match_flags)
3020 return -EPROTONOSUPPORT;
3023 static s32 efx_ef10_filter_insert(struct efx_nic *efx,
3024 struct efx_filter_spec *spec,
3027 struct efx_ef10_filter_table *table = efx->filter_state;
3028 DECLARE_BITMAP(mc_rem_map, EFX_EF10_FILTER_SEARCH_LIMIT);
3029 struct efx_filter_spec *saved_spec;
3030 unsigned int match_pri, hash;
3031 unsigned int priv_flags;
3032 bool replacing = false;
3038 /* For now, only support RX filters */
3039 if ((spec->flags & (EFX_FILTER_FLAG_RX | EFX_FILTER_FLAG_TX)) !=
3043 rc = efx_ef10_filter_rx_match_pri(table, spec->match_flags);
3048 hash = efx_ef10_filter_hash(spec);
3049 is_mc_recip = efx_filter_is_mc_recipient(spec);
3051 bitmap_zero(mc_rem_map, EFX_EF10_FILTER_SEARCH_LIMIT);
3053 /* Find any existing filters with the same match tuple or
3054 * else a free slot to insert at. If any of them are busy,
3055 * we have to wait and retry.
3058 unsigned int depth = 1;
3061 spin_lock_bh(&efx->filter_lock);
3064 i = (hash + depth) & (HUNT_FILTER_TBL_ROWS - 1);
3065 saved_spec = efx_ef10_filter_entry_spec(table, i);
3070 } else if (efx_ef10_filter_equal(spec, saved_spec)) {
3071 if (table->entry[i].spec &
3072 EFX_EF10_FILTER_FLAG_BUSY)
3074 if (spec->priority < saved_spec->priority &&
3075 spec->priority != EFX_FILTER_PRI_AUTO) {
3080 /* This is the only one */
3081 if (spec->priority ==
3082 saved_spec->priority &&
3089 } else if (spec->priority >
3090 saved_spec->priority ||
3092 saved_spec->priority &&
3097 __set_bit(depth, mc_rem_map);
3101 /* Once we reach the maximum search depth, use
3102 * the first suitable slot or return -EBUSY if
3105 if (depth == EFX_EF10_FILTER_SEARCH_LIMIT) {
3106 if (ins_index < 0) {
3116 prepare_to_wait(&table->waitq, &wait, TASK_UNINTERRUPTIBLE);
3117 spin_unlock_bh(&efx->filter_lock);
3122 /* Create a software table entry if necessary, and mark it
3123 * busy. We might yet fail to insert, but any attempt to
3124 * insert a conflicting filter while we're waiting for the
3125 * firmware must find the busy entry.
3127 saved_spec = efx_ef10_filter_entry_spec(table, ins_index);
3129 if (spec->priority == EFX_FILTER_PRI_AUTO &&
3130 saved_spec->priority >= EFX_FILTER_PRI_AUTO) {
3131 /* Just make sure it won't be removed */
3132 if (saved_spec->priority > EFX_FILTER_PRI_AUTO)
3133 saved_spec->flags |= EFX_FILTER_FLAG_RX_OVER_AUTO;
3134 table->entry[ins_index].spec &=
3135 ~EFX_EF10_FILTER_FLAG_AUTO_OLD;
3140 priv_flags = efx_ef10_filter_entry_flags(table, ins_index);
3142 saved_spec = kmalloc(sizeof(*spec), GFP_ATOMIC);
3147 *saved_spec = *spec;
3150 efx_ef10_filter_set_entry(table, ins_index, saved_spec,
3151 priv_flags | EFX_EF10_FILTER_FLAG_BUSY);
3153 /* Mark lower-priority multicast recipients busy prior to removal */
3155 unsigned int depth, i;
3157 for (depth = 0; depth < EFX_EF10_FILTER_SEARCH_LIMIT; depth++) {
3158 i = (hash + depth) & (HUNT_FILTER_TBL_ROWS - 1);
3159 if (test_bit(depth, mc_rem_map))
3160 table->entry[i].spec |=
3161 EFX_EF10_FILTER_FLAG_BUSY;
3165 spin_unlock_bh(&efx->filter_lock);
3167 rc = efx_ef10_filter_push(efx, spec, &table->entry[ins_index].handle,
3170 /* Finalise the software table entry */
3171 spin_lock_bh(&efx->filter_lock);
3174 /* Update the fields that may differ */
3175 if (saved_spec->priority == EFX_FILTER_PRI_AUTO)
3176 saved_spec->flags |=
3177 EFX_FILTER_FLAG_RX_OVER_AUTO;
3178 saved_spec->priority = spec->priority;
3179 saved_spec->flags &= EFX_FILTER_FLAG_RX_OVER_AUTO;
3180 saved_spec->flags |= spec->flags;
3181 saved_spec->rss_context = spec->rss_context;
3182 saved_spec->dmaq_id = spec->dmaq_id;
3184 } else if (!replacing) {
3188 efx_ef10_filter_set_entry(table, ins_index, saved_spec, priv_flags);
3190 /* Remove and finalise entries for lower-priority multicast
3194 MCDI_DECLARE_BUF(inbuf, MC_CMD_FILTER_OP_IN_LEN);
3195 unsigned int depth, i;
3197 memset(inbuf, 0, sizeof(inbuf));
3199 for (depth = 0; depth < EFX_EF10_FILTER_SEARCH_LIMIT; depth++) {
3200 if (!test_bit(depth, mc_rem_map))
3203 i = (hash + depth) & (HUNT_FILTER_TBL_ROWS - 1);
3204 saved_spec = efx_ef10_filter_entry_spec(table, i);
3205 priv_flags = efx_ef10_filter_entry_flags(table, i);
3208 spin_unlock_bh(&efx->filter_lock);
3209 MCDI_SET_DWORD(inbuf, FILTER_OP_IN_OP,
3210 MC_CMD_FILTER_OP_IN_OP_UNSUBSCRIBE);
3211 MCDI_SET_QWORD(inbuf, FILTER_OP_IN_HANDLE,
3212 table->entry[i].handle);
3213 rc = efx_mcdi_rpc(efx, MC_CMD_FILTER_OP,
3214 inbuf, sizeof(inbuf),
3216 spin_lock_bh(&efx->filter_lock);
3224 priv_flags &= ~EFX_EF10_FILTER_FLAG_BUSY;
3226 efx_ef10_filter_set_entry(table, i, saved_spec,
3231 /* If successful, return the inserted filter ID */
3233 rc = match_pri * HUNT_FILTER_TBL_ROWS + ins_index;
3235 wake_up_all(&table->waitq);
3237 spin_unlock_bh(&efx->filter_lock);
3238 finish_wait(&table->waitq, &wait);
3242 static void efx_ef10_filter_update_rx_scatter(struct efx_nic *efx)
3244 /* no need to do anything here on EF10 */
3248 * If !by_index, remove by ID
3249 * If by_index, remove by index
3250 * Filter ID may come from userland and must be range-checked.
3252 static int efx_ef10_filter_remove_internal(struct efx_nic *efx,
3253 unsigned int priority_mask,
3254 u32 filter_id, bool by_index)
3256 unsigned int filter_idx = filter_id % HUNT_FILTER_TBL_ROWS;
3257 struct efx_ef10_filter_table *table = efx->filter_state;
3258 MCDI_DECLARE_BUF(inbuf,
3259 MC_CMD_FILTER_OP_IN_HANDLE_OFST +
3260 MC_CMD_FILTER_OP_IN_HANDLE_LEN);
3261 struct efx_filter_spec *spec;
3265 /* Find the software table entry and mark it busy. Don't
3266 * remove it yet; any attempt to update while we're waiting
3267 * for the firmware must find the busy entry.
3270 spin_lock_bh(&efx->filter_lock);
3271 if (!(table->entry[filter_idx].spec &
3272 EFX_EF10_FILTER_FLAG_BUSY))
3274 prepare_to_wait(&table->waitq, &wait, TASK_UNINTERRUPTIBLE);
3275 spin_unlock_bh(&efx->filter_lock);
3279 spec = efx_ef10_filter_entry_spec(table, filter_idx);
3282 efx_ef10_filter_rx_match_pri(table, spec->match_flags) !=
3283 filter_id / HUNT_FILTER_TBL_ROWS)) {
3288 if (spec->flags & EFX_FILTER_FLAG_RX_OVER_AUTO &&
3289 priority_mask == (1U << EFX_FILTER_PRI_AUTO)) {
3290 /* Just remove flags */
3291 spec->flags &= ~EFX_FILTER_FLAG_RX_OVER_AUTO;
3292 table->entry[filter_idx].spec &= ~EFX_EF10_FILTER_FLAG_AUTO_OLD;
3297 if (!(priority_mask & (1U << spec->priority))) {
3302 table->entry[filter_idx].spec |= EFX_EF10_FILTER_FLAG_BUSY;
3303 spin_unlock_bh(&efx->filter_lock);
3305 if (spec->flags & EFX_FILTER_FLAG_RX_OVER_AUTO) {
3306 /* Reset to an automatic filter */
3308 struct efx_filter_spec new_spec = *spec;
3310 new_spec.priority = EFX_FILTER_PRI_AUTO;
3311 new_spec.flags = (EFX_FILTER_FLAG_RX |
3312 (efx_rss_enabled(efx) ?
3313 EFX_FILTER_FLAG_RX_RSS : 0));
3314 new_spec.dmaq_id = 0;
3315 new_spec.rss_context = EFX_FILTER_RSS_CONTEXT_DEFAULT;
3316 rc = efx_ef10_filter_push(efx, &new_spec,
3317 &table->entry[filter_idx].handle,
3320 spin_lock_bh(&efx->filter_lock);
3324 /* Really remove the filter */
3326 MCDI_SET_DWORD(inbuf, FILTER_OP_IN_OP,
3327 efx_ef10_filter_is_exclusive(spec) ?
3328 MC_CMD_FILTER_OP_IN_OP_REMOVE :
3329 MC_CMD_FILTER_OP_IN_OP_UNSUBSCRIBE);
3330 MCDI_SET_QWORD(inbuf, FILTER_OP_IN_HANDLE,
3331 table->entry[filter_idx].handle);
3332 rc = efx_mcdi_rpc(efx, MC_CMD_FILTER_OP,
3333 inbuf, sizeof(inbuf), NULL, 0, NULL);
3335 spin_lock_bh(&efx->filter_lock);
3338 efx_ef10_filter_set_entry(table, filter_idx, NULL, 0);
3342 table->entry[filter_idx].spec &= ~EFX_EF10_FILTER_FLAG_BUSY;
3343 wake_up_all(&table->waitq);
3345 spin_unlock_bh(&efx->filter_lock);
3346 finish_wait(&table->waitq, &wait);
3350 static int efx_ef10_filter_remove_safe(struct efx_nic *efx,
3351 enum efx_filter_priority priority,
3354 return efx_ef10_filter_remove_internal(efx, 1U << priority,
3358 static u32 efx_ef10_filter_get_unsafe_id(struct efx_nic *efx, u32 filter_id)
3360 return filter_id % HUNT_FILTER_TBL_ROWS;
3363 static int efx_ef10_filter_remove_unsafe(struct efx_nic *efx,
3364 enum efx_filter_priority priority,
3367 return efx_ef10_filter_remove_internal(efx, 1U << priority,
3371 static int efx_ef10_filter_get_safe(struct efx_nic *efx,
3372 enum efx_filter_priority priority,
3373 u32 filter_id, struct efx_filter_spec *spec)
3375 unsigned int filter_idx = filter_id % HUNT_FILTER_TBL_ROWS;
3376 struct efx_ef10_filter_table *table = efx->filter_state;
3377 const struct efx_filter_spec *saved_spec;
3380 spin_lock_bh(&efx->filter_lock);
3381 saved_spec = efx_ef10_filter_entry_spec(table, filter_idx);
3382 if (saved_spec && saved_spec->priority == priority &&
3383 efx_ef10_filter_rx_match_pri(table, saved_spec->match_flags) ==
3384 filter_id / HUNT_FILTER_TBL_ROWS) {
3385 *spec = *saved_spec;
3390 spin_unlock_bh(&efx->filter_lock);
3394 static int efx_ef10_filter_clear_rx(struct efx_nic *efx,
3395 enum efx_filter_priority priority)
3397 unsigned int priority_mask;
3401 priority_mask = (((1U << (priority + 1)) - 1) &
3402 ~(1U << EFX_FILTER_PRI_AUTO));
3404 for (i = 0; i < HUNT_FILTER_TBL_ROWS; i++) {
3405 rc = efx_ef10_filter_remove_internal(efx, priority_mask,
3407 if (rc && rc != -ENOENT)
3414 static u32 efx_ef10_filter_count_rx_used(struct efx_nic *efx,
3415 enum efx_filter_priority priority)
3417 struct efx_ef10_filter_table *table = efx->filter_state;
3418 unsigned int filter_idx;
3421 spin_lock_bh(&efx->filter_lock);
3422 for (filter_idx = 0; filter_idx < HUNT_FILTER_TBL_ROWS; filter_idx++) {
3423 if (table->entry[filter_idx].spec &&
3424 efx_ef10_filter_entry_spec(table, filter_idx)->priority ==
3428 spin_unlock_bh(&efx->filter_lock);
3432 static u32 efx_ef10_filter_get_rx_id_limit(struct efx_nic *efx)
3434 struct efx_ef10_filter_table *table = efx->filter_state;
3436 return table->rx_match_count * HUNT_FILTER_TBL_ROWS;
3439 static s32 efx_ef10_filter_get_rx_ids(struct efx_nic *efx,
3440 enum efx_filter_priority priority,
3443 struct efx_ef10_filter_table *table = efx->filter_state;
3444 struct efx_filter_spec *spec;
3445 unsigned int filter_idx;
3448 spin_lock_bh(&efx->filter_lock);
3449 for (filter_idx = 0; filter_idx < HUNT_FILTER_TBL_ROWS; filter_idx++) {
3450 spec = efx_ef10_filter_entry_spec(table, filter_idx);
3451 if (spec && spec->priority == priority) {
3452 if (count == size) {
3456 buf[count++] = (efx_ef10_filter_rx_match_pri(
3457 table, spec->match_flags) *
3458 HUNT_FILTER_TBL_ROWS +
3462 spin_unlock_bh(&efx->filter_lock);
3466 #ifdef CONFIG_RFS_ACCEL
3468 static efx_mcdi_async_completer efx_ef10_filter_rfs_insert_complete;
3470 static s32 efx_ef10_filter_rfs_insert(struct efx_nic *efx,
3471 struct efx_filter_spec *spec)
3473 struct efx_ef10_filter_table *table = efx->filter_state;
3474 MCDI_DECLARE_BUF(inbuf, MC_CMD_FILTER_OP_IN_LEN);
3475 struct efx_filter_spec *saved_spec;
3476 unsigned int hash, i, depth = 1;
3477 bool replacing = false;
3482 /* Must be an RX filter without RSS and not for a multicast
3483 * destination address (RFS only works for connected sockets).
3484 * These restrictions allow us to pass only a tiny amount of
3485 * data through to the completion function.
3487 EFX_WARN_ON_PARANOID(spec->flags !=
3488 (EFX_FILTER_FLAG_RX | EFX_FILTER_FLAG_RX_SCATTER));
3489 EFX_WARN_ON_PARANOID(spec->priority != EFX_FILTER_PRI_HINT);
3490 EFX_WARN_ON_PARANOID(efx_filter_is_mc_recipient(spec));
3492 hash = efx_ef10_filter_hash(spec);
3494 spin_lock_bh(&efx->filter_lock);
3496 /* Find any existing filter with the same match tuple or else
3497 * a free slot to insert at. If an existing filter is busy,
3498 * we have to give up.
3501 i = (hash + depth) & (HUNT_FILTER_TBL_ROWS - 1);
3502 saved_spec = efx_ef10_filter_entry_spec(table, i);
3507 } else if (efx_ef10_filter_equal(spec, saved_spec)) {
3508 if (table->entry[i].spec & EFX_EF10_FILTER_FLAG_BUSY) {
3512 if (spec->priority < saved_spec->priority) {
3520 /* Once we reach the maximum search depth, use the
3521 * first suitable slot or return -EBUSY if there was
3524 if (depth == EFX_EF10_FILTER_SEARCH_LIMIT) {
3525 if (ins_index < 0) {
3535 /* Create a software table entry if necessary, and mark it
3536 * busy. We might yet fail to insert, but any attempt to
3537 * insert a conflicting filter while we're waiting for the
3538 * firmware must find the busy entry.
3540 saved_spec = efx_ef10_filter_entry_spec(table, ins_index);
3544 saved_spec = kmalloc(sizeof(*spec), GFP_ATOMIC);
3549 *saved_spec = *spec;
3551 efx_ef10_filter_set_entry(table, ins_index, saved_spec,
3552 EFX_EF10_FILTER_FLAG_BUSY);
3554 spin_unlock_bh(&efx->filter_lock);
3556 /* Pack up the variables needed on completion */
3557 cookie = replacing << 31 | ins_index << 16 | spec->dmaq_id;
3559 efx_ef10_filter_push_prep(efx, spec, inbuf,
3560 table->entry[ins_index].handle, replacing);
3561 efx_mcdi_rpc_async(efx, MC_CMD_FILTER_OP, inbuf, sizeof(inbuf),
3562 MC_CMD_FILTER_OP_OUT_LEN,
3563 efx_ef10_filter_rfs_insert_complete, cookie);
3568 spin_unlock_bh(&efx->filter_lock);
3573 efx_ef10_filter_rfs_insert_complete(struct efx_nic *efx, unsigned long cookie,
3574 int rc, efx_dword_t *outbuf,
3575 size_t outlen_actual)
3577 struct efx_ef10_filter_table *table = efx->filter_state;
3578 unsigned int ins_index, dmaq_id;
3579 struct efx_filter_spec *spec;
3582 /* Unpack the cookie */
3583 replacing = cookie >> 31;
3584 ins_index = (cookie >> 16) & (HUNT_FILTER_TBL_ROWS - 1);
3585 dmaq_id = cookie & 0xffff;
3587 spin_lock_bh(&efx->filter_lock);
3588 spec = efx_ef10_filter_entry_spec(table, ins_index);
3590 table->entry[ins_index].handle =
3591 MCDI_QWORD(outbuf, FILTER_OP_OUT_HANDLE);
3593 spec->dmaq_id = dmaq_id;
3594 } else if (!replacing) {
3598 efx_ef10_filter_set_entry(table, ins_index, spec, 0);
3599 spin_unlock_bh(&efx->filter_lock);
3601 wake_up_all(&table->waitq);
3605 efx_ef10_filter_rfs_expire_complete(struct efx_nic *efx,
3606 unsigned long filter_idx,
3607 int rc, efx_dword_t *outbuf,
3608 size_t outlen_actual);
3610 static bool efx_ef10_filter_rfs_expire_one(struct efx_nic *efx, u32 flow_id,
3611 unsigned int filter_idx)
3613 struct efx_ef10_filter_table *table = efx->filter_state;
3614 struct efx_filter_spec *spec =
3615 efx_ef10_filter_entry_spec(table, filter_idx);
3616 MCDI_DECLARE_BUF(inbuf,
3617 MC_CMD_FILTER_OP_IN_HANDLE_OFST +
3618 MC_CMD_FILTER_OP_IN_HANDLE_LEN);
3621 (table->entry[filter_idx].spec & EFX_EF10_FILTER_FLAG_BUSY) ||
3622 spec->priority != EFX_FILTER_PRI_HINT ||
3623 !rps_may_expire_flow(efx->net_dev, spec->dmaq_id,
3624 flow_id, filter_idx))
3627 MCDI_SET_DWORD(inbuf, FILTER_OP_IN_OP,
3628 MC_CMD_FILTER_OP_IN_OP_REMOVE);
3629 MCDI_SET_QWORD(inbuf, FILTER_OP_IN_HANDLE,
3630 table->entry[filter_idx].handle);
3631 if (efx_mcdi_rpc_async(efx, MC_CMD_FILTER_OP, inbuf, sizeof(inbuf), 0,
3632 efx_ef10_filter_rfs_expire_complete, filter_idx))
3635 table->entry[filter_idx].spec |= EFX_EF10_FILTER_FLAG_BUSY;
3640 efx_ef10_filter_rfs_expire_complete(struct efx_nic *efx,
3641 unsigned long filter_idx,
3642 int rc, efx_dword_t *outbuf,
3643 size_t outlen_actual)
3645 struct efx_ef10_filter_table *table = efx->filter_state;
3646 struct efx_filter_spec *spec =
3647 efx_ef10_filter_entry_spec(table, filter_idx);
3649 spin_lock_bh(&efx->filter_lock);
3652 efx_ef10_filter_set_entry(table, filter_idx, NULL, 0);
3654 table->entry[filter_idx].spec &= ~EFX_EF10_FILTER_FLAG_BUSY;
3655 wake_up_all(&table->waitq);
3656 spin_unlock_bh(&efx->filter_lock);
3659 #endif /* CONFIG_RFS_ACCEL */
3661 static int efx_ef10_filter_match_flags_from_mcdi(u32 mcdi_flags)
3663 int match_flags = 0;
3665 #define MAP_FLAG(gen_flag, mcdi_field) { \
3666 u32 old_mcdi_flags = mcdi_flags; \
3667 mcdi_flags &= ~(1 << MC_CMD_FILTER_OP_IN_MATCH_ ## \
3668 mcdi_field ## _LBN); \
3669 if (mcdi_flags != old_mcdi_flags) \
3670 match_flags |= EFX_FILTER_MATCH_ ## gen_flag; \
3672 MAP_FLAG(LOC_MAC_IG, UNKNOWN_UCAST_DST);
3673 MAP_FLAG(LOC_MAC_IG, UNKNOWN_MCAST_DST);
3674 MAP_FLAG(REM_HOST, SRC_IP);
3675 MAP_FLAG(LOC_HOST, DST_IP);
3676 MAP_FLAG(REM_MAC, SRC_MAC);
3677 MAP_FLAG(REM_PORT, SRC_PORT);
3678 MAP_FLAG(LOC_MAC, DST_MAC);
3679 MAP_FLAG(LOC_PORT, DST_PORT);
3680 MAP_FLAG(ETHER_TYPE, ETHER_TYPE);
3681 MAP_FLAG(INNER_VID, INNER_VLAN);
3682 MAP_FLAG(OUTER_VID, OUTER_VLAN);
3683 MAP_FLAG(IP_PROTO, IP_PROTO);
3686 /* Did we map them all? */
3693 static int efx_ef10_filter_table_probe(struct efx_nic *efx)
3695 MCDI_DECLARE_BUF(inbuf, MC_CMD_GET_PARSER_DISP_INFO_IN_LEN);
3696 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PARSER_DISP_INFO_OUT_LENMAX);
3697 unsigned int pd_match_pri, pd_match_count;
3698 struct efx_ef10_filter_table *table;
3702 table = kzalloc(sizeof(*table), GFP_KERNEL);
3706 /* Find out which RX filter types are supported, and their priorities */
3707 MCDI_SET_DWORD(inbuf, GET_PARSER_DISP_INFO_IN_OP,
3708 MC_CMD_GET_PARSER_DISP_INFO_IN_OP_GET_SUPPORTED_RX_MATCHES);
3709 rc = efx_mcdi_rpc(efx, MC_CMD_GET_PARSER_DISP_INFO,
3710 inbuf, sizeof(inbuf), outbuf, sizeof(outbuf),
3714 pd_match_count = MCDI_VAR_ARRAY_LEN(
3715 outlen, GET_PARSER_DISP_INFO_OUT_SUPPORTED_MATCHES);
3716 table->rx_match_count = 0;
3718 for (pd_match_pri = 0; pd_match_pri < pd_match_count; pd_match_pri++) {
3722 GET_PARSER_DISP_INFO_OUT_SUPPORTED_MATCHES,
3724 rc = efx_ef10_filter_match_flags_from_mcdi(mcdi_flags);
3726 netif_dbg(efx, probe, efx->net_dev,
3727 "%s: fw flags %#x pri %u not supported in driver\n",
3728 __func__, mcdi_flags, pd_match_pri);
3730 netif_dbg(efx, probe, efx->net_dev,
3731 "%s: fw flags %#x pri %u supported as driver flags %#x pri %u\n",
3732 __func__, mcdi_flags, pd_match_pri,
3733 rc, table->rx_match_count);
3734 table->rx_match_flags[table->rx_match_count++] = rc;
3738 table->entry = vzalloc(HUNT_FILTER_TBL_ROWS * sizeof(*table->entry));
3739 if (!table->entry) {
3744 table->ucdef_id = EFX_EF10_FILTER_ID_INVALID;
3745 table->bcast_id = EFX_EF10_FILTER_ID_INVALID;
3746 table->mcdef_id = EFX_EF10_FILTER_ID_INVALID;
3748 efx->filter_state = table;
3749 init_waitqueue_head(&table->waitq);
3757 /* Caller must hold efx->filter_sem for read if race against
3758 * efx_ef10_filter_table_remove() is possible
3760 static void efx_ef10_filter_table_restore(struct efx_nic *efx)
3762 struct efx_ef10_filter_table *table = efx->filter_state;
3763 struct efx_ef10_nic_data *nic_data = efx->nic_data;
3764 struct efx_filter_spec *spec;
3765 unsigned int filter_idx;
3766 bool failed = false;
3769 WARN_ON(!rwsem_is_locked(&efx->filter_sem));
3771 if (!nic_data->must_restore_filters)
3777 spin_lock_bh(&efx->filter_lock);
3779 for (filter_idx = 0; filter_idx < HUNT_FILTER_TBL_ROWS; filter_idx++) {
3780 spec = efx_ef10_filter_entry_spec(table, filter_idx);
3784 table->entry[filter_idx].spec |= EFX_EF10_FILTER_FLAG_BUSY;
3785 spin_unlock_bh(&efx->filter_lock);
3787 rc = efx_ef10_filter_push(efx, spec,
3788 &table->entry[filter_idx].handle,
3793 spin_lock_bh(&efx->filter_lock);
3796 efx_ef10_filter_set_entry(table, filter_idx, NULL, 0);
3798 table->entry[filter_idx].spec &=
3799 ~EFX_EF10_FILTER_FLAG_BUSY;
3803 spin_unlock_bh(&efx->filter_lock);
3806 netif_err(efx, hw, efx->net_dev,
3807 "unable to restore all filters\n");
3809 nic_data->must_restore_filters = false;
3812 /* Caller must hold efx->filter_sem for write */
3813 static void efx_ef10_filter_table_remove(struct efx_nic *efx)
3815 struct efx_ef10_filter_table *table = efx->filter_state;
3816 MCDI_DECLARE_BUF(inbuf, MC_CMD_FILTER_OP_IN_LEN);
3817 struct efx_filter_spec *spec;
3818 unsigned int filter_idx;
3821 efx->filter_state = NULL;
3825 for (filter_idx = 0; filter_idx < HUNT_FILTER_TBL_ROWS; filter_idx++) {
3826 spec = efx_ef10_filter_entry_spec(table, filter_idx);
3830 MCDI_SET_DWORD(inbuf, FILTER_OP_IN_OP,
3831 efx_ef10_filter_is_exclusive(spec) ?
3832 MC_CMD_FILTER_OP_IN_OP_REMOVE :
3833 MC_CMD_FILTER_OP_IN_OP_UNSUBSCRIBE);
3834 MCDI_SET_QWORD(inbuf, FILTER_OP_IN_HANDLE,
3835 table->entry[filter_idx].handle);
3836 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_FILTER_OP, inbuf,
3837 sizeof(inbuf), NULL, 0, NULL);
3839 netif_info(efx, drv, efx->net_dev,
3840 "%s: filter %04x remove failed\n",
3841 __func__, filter_idx);
3845 vfree(table->entry);
3849 #define EFX_EF10_FILTER_DO_MARK_OLD(id) \
3850 if (id != EFX_EF10_FILTER_ID_INVALID) { \
3851 filter_idx = efx_ef10_filter_get_unsafe_id(efx, id); \
3852 if (!table->entry[filter_idx].spec) \
3853 netif_dbg(efx, drv, efx->net_dev, \
3854 "%s: marked null spec old %04x:%04x\n", \
3855 __func__, id, filter_idx); \
3856 table->entry[filter_idx].spec |= EFX_EF10_FILTER_FLAG_AUTO_OLD;\
3858 static void efx_ef10_filter_mark_old(struct efx_nic *efx)
3860 struct efx_ef10_filter_table *table = efx->filter_state;
3861 unsigned int filter_idx, i;
3866 /* Mark old filters that may need to be removed */
3867 spin_lock_bh(&efx->filter_lock);
3868 for (i = 0; i < table->dev_uc_count; i++)
3869 EFX_EF10_FILTER_DO_MARK_OLD(table->dev_uc_list[i].id);
3870 for (i = 0; i < table->dev_mc_count; i++)
3871 EFX_EF10_FILTER_DO_MARK_OLD(table->dev_mc_list[i].id);
3872 EFX_EF10_FILTER_DO_MARK_OLD(table->ucdef_id);
3873 EFX_EF10_FILTER_DO_MARK_OLD(table->bcast_id);
3874 EFX_EF10_FILTER_DO_MARK_OLD(table->mcdef_id);
3875 spin_unlock_bh(&efx->filter_lock);
3877 #undef EFX_EF10_FILTER_DO_MARK_OLD
3879 static void efx_ef10_filter_uc_addr_list(struct efx_nic *efx, bool *promisc)
3881 struct efx_ef10_filter_table *table = efx->filter_state;
3882 struct net_device *net_dev = efx->net_dev;
3883 struct netdev_hw_addr *uc;
3887 table->ucdef_id = EFX_EF10_FILTER_ID_INVALID;
3888 addr_count = netdev_uc_count(net_dev);
3889 if (net_dev->flags & IFF_PROMISC)
3891 table->dev_uc_count = 1 + addr_count;
3892 ether_addr_copy(table->dev_uc_list[0].addr, net_dev->dev_addr);
3894 netdev_for_each_uc_addr(uc, net_dev) {
3895 if (i >= EFX_EF10_FILTER_DEV_UC_MAX) {
3899 ether_addr_copy(table->dev_uc_list[i].addr, uc->addr);
3900 table->dev_uc_list[i].id = EFX_EF10_FILTER_ID_INVALID;
3905 static void efx_ef10_filter_mc_addr_list(struct efx_nic *efx, bool *promisc)
3907 struct efx_ef10_filter_table *table = efx->filter_state;
3908 struct net_device *net_dev = efx->net_dev;
3909 struct netdev_hw_addr *mc;
3910 unsigned int i, addr_count;
3912 table->mcdef_id = EFX_EF10_FILTER_ID_INVALID;
3913 table->bcast_id = EFX_EF10_FILTER_ID_INVALID;
3914 if (net_dev->flags & (IFF_PROMISC | IFF_ALLMULTI))
3917 addr_count = netdev_mc_count(net_dev);
3919 netdev_for_each_mc_addr(mc, net_dev) {
3920 if (i >= EFX_EF10_FILTER_DEV_MC_MAX) {
3924 ether_addr_copy(table->dev_mc_list[i].addr, mc->addr);
3925 table->dev_mc_list[i].id = EFX_EF10_FILTER_ID_INVALID;
3929 table->dev_mc_count = i;
3932 static int efx_ef10_filter_insert_addr_list(struct efx_nic *efx,
3933 bool multicast, bool rollback)
3935 struct efx_ef10_filter_table *table = efx->filter_state;
3936 struct efx_ef10_dev_addr *addr_list;
3937 enum efx_filter_flags filter_flags;
3938 struct efx_filter_spec spec;
3945 addr_list = table->dev_mc_list;
3946 addr_count = table->dev_mc_count;
3948 addr_list = table->dev_uc_list;
3949 addr_count = table->dev_uc_count;
3952 filter_flags = efx_rss_enabled(efx) ? EFX_FILTER_FLAG_RX_RSS : 0;
3954 /* Insert/renew filters */
3955 for (i = 0; i < addr_count; i++) {
3956 efx_filter_init_rx(&spec, EFX_FILTER_PRI_AUTO, filter_flags, 0);
3957 efx_filter_set_eth_local(&spec, EFX_FILTER_VID_UNSPEC,
3959 rc = efx_ef10_filter_insert(efx, &spec, true);
3962 netif_info(efx, drv, efx->net_dev,
3963 "efx_ef10_filter_insert failed rc=%d\n",
3965 /* Fall back to promiscuous */
3966 for (j = 0; j < i; j++) {
3967 if (addr_list[j].id == EFX_EF10_FILTER_ID_INVALID)
3969 efx_ef10_filter_remove_unsafe(
3970 efx, EFX_FILTER_PRI_AUTO,
3972 addr_list[j].id = EFX_EF10_FILTER_ID_INVALID;
3976 /* mark as not inserted, and carry on */
3977 rc = EFX_EF10_FILTER_ID_INVALID;
3980 addr_list[i].id = efx_ef10_filter_get_unsafe_id(efx, rc);
3983 if (multicast && rollback) {
3984 /* Also need an Ethernet broadcast filter */
3985 efx_filter_init_rx(&spec, EFX_FILTER_PRI_AUTO, filter_flags, 0);
3986 eth_broadcast_addr(baddr);
3987 efx_filter_set_eth_local(&spec, EFX_FILTER_VID_UNSPEC, baddr);
3988 rc = efx_ef10_filter_insert(efx, &spec, true);
3990 netif_warn(efx, drv, efx->net_dev,
3991 "Broadcast filter insert failed rc=%d\n", rc);
3992 /* Fall back to promiscuous */
3993 for (j = 0; j < i; j++) {
3994 if (addr_list[j].id == EFX_EF10_FILTER_ID_INVALID)
3996 efx_ef10_filter_remove_unsafe(
3997 efx, EFX_FILTER_PRI_AUTO,
3999 addr_list[j].id = EFX_EF10_FILTER_ID_INVALID;
4003 table->bcast_id = efx_ef10_filter_get_unsafe_id(efx, rc);
4010 static int efx_ef10_filter_insert_def(struct efx_nic *efx, bool multicast,
4013 struct efx_ef10_filter_table *table = efx->filter_state;
4014 struct efx_ef10_nic_data *nic_data = efx->nic_data;
4015 enum efx_filter_flags filter_flags;
4016 struct efx_filter_spec spec;
4020 filter_flags = efx_rss_enabled(efx) ? EFX_FILTER_FLAG_RX_RSS : 0;
4022 efx_filter_init_rx(&spec, EFX_FILTER_PRI_AUTO, filter_flags, 0);
4025 efx_filter_set_mc_def(&spec);
4027 efx_filter_set_uc_def(&spec);
4029 rc = efx_ef10_filter_insert(efx, &spec, true);
4031 netif_warn(efx, drv, efx->net_dev,
4032 "%scast mismatch filter insert failed rc=%d\n",
4033 multicast ? "Multi" : "Uni", rc);
4034 } else if (multicast) {
4035 table->mcdef_id = efx_ef10_filter_get_unsafe_id(efx, rc);
4036 if (!nic_data->workaround_26807) {
4037 /* Also need an Ethernet broadcast filter */
4038 efx_filter_init_rx(&spec, EFX_FILTER_PRI_AUTO,
4040 eth_broadcast_addr(baddr);
4041 efx_filter_set_eth_local(&spec, EFX_FILTER_VID_UNSPEC,
4043 rc = efx_ef10_filter_insert(efx, &spec, true);
4045 netif_warn(efx, drv, efx->net_dev,
4046 "Broadcast filter insert failed rc=%d\n",
4049 /* Roll back the mc_def filter */
4050 efx_ef10_filter_remove_unsafe(
4051 efx, EFX_FILTER_PRI_AUTO,
4053 table->mcdef_id = EFX_EF10_FILTER_ID_INVALID;
4057 table->bcast_id = efx_ef10_filter_get_unsafe_id(efx, rc);
4062 table->ucdef_id = rc;
4068 /* Remove filters that weren't renewed. Since nothing else changes the AUTO_OLD
4069 * flag or removes these filters, we don't need to hold the filter_lock while
4070 * scanning for these filters.
4072 static void efx_ef10_filter_remove_old(struct efx_nic *efx)
4074 struct efx_ef10_filter_table *table = efx->filter_state;
4075 int remove_failed = 0;
4076 int remove_noent = 0;
4080 for (i = 0; i < HUNT_FILTER_TBL_ROWS; i++) {
4081 if (ACCESS_ONCE(table->entry[i].spec) &
4082 EFX_EF10_FILTER_FLAG_AUTO_OLD) {
4083 rc = efx_ef10_filter_remove_internal(efx,
4084 1U << EFX_FILTER_PRI_AUTO, i, true);
4093 netif_info(efx, drv, efx->net_dev,
4094 "%s: failed to remove %d filters\n",
4095 __func__, remove_failed);
4097 netif_info(efx, drv, efx->net_dev,
4098 "%s: failed to remove %d non-existent filters\n",
4099 __func__, remove_noent);
4102 static int efx_ef10_vport_set_mac_address(struct efx_nic *efx)
4104 struct efx_ef10_nic_data *nic_data = efx->nic_data;
4105 u8 mac_old[ETH_ALEN];
4108 /* Only reconfigure a PF-created vport */
4109 if (is_zero_ether_addr(nic_data->vport_mac))
4112 efx_device_detach_sync(efx);
4113 efx_net_stop(efx->net_dev);
4114 down_write(&efx->filter_sem);
4115 efx_ef10_filter_table_remove(efx);
4116 up_write(&efx->filter_sem);
4118 rc = efx_ef10_vadaptor_free(efx, nic_data->vport_id);
4120 goto restore_filters;
4122 ether_addr_copy(mac_old, nic_data->vport_mac);
4123 rc = efx_ef10_vport_del_mac(efx, nic_data->vport_id,
4124 nic_data->vport_mac);
4126 goto restore_vadaptor;
4128 rc = efx_ef10_vport_add_mac(efx, nic_data->vport_id,
4129 efx->net_dev->dev_addr);
4131 ether_addr_copy(nic_data->vport_mac, efx->net_dev->dev_addr);
4133 rc2 = efx_ef10_vport_add_mac(efx, nic_data->vport_id, mac_old);
4135 /* Failed to add original MAC, so clear vport_mac */
4136 eth_zero_addr(nic_data->vport_mac);
4142 rc2 = efx_ef10_vadaptor_alloc(efx, nic_data->vport_id);
4146 down_write(&efx->filter_sem);
4147 rc2 = efx_ef10_filter_table_probe(efx);
4148 up_write(&efx->filter_sem);
4152 rc2 = efx_net_open(efx->net_dev);
4156 netif_device_attach(efx->net_dev);
4161 netif_err(efx, drv, efx->net_dev,
4162 "Failed to restore when changing MAC address - scheduling reset\n");
4163 efx_schedule_reset(efx, RESET_TYPE_DATAPATH);
4165 return rc ? rc : rc2;
4168 /* Caller must hold efx->filter_sem for read if race against
4169 * efx_ef10_filter_table_remove() is possible
4171 static void efx_ef10_filter_sync_rx_mode(struct efx_nic *efx)
4173 struct efx_ef10_filter_table *table = efx->filter_state;
4174 struct efx_ef10_nic_data *nic_data = efx->nic_data;
4175 struct net_device *net_dev = efx->net_dev;
4176 bool uc_promisc = false, mc_promisc = false;
4178 if (!efx_dev_registered(efx))
4184 efx_ef10_filter_mark_old(efx);
4186 /* Copy/convert the address lists; add the primary station
4187 * address and broadcast address
4189 netif_addr_lock_bh(net_dev);
4190 efx_ef10_filter_uc_addr_list(efx, &uc_promisc);
4191 efx_ef10_filter_mc_addr_list(efx, &mc_promisc);
4192 netif_addr_unlock_bh(net_dev);
4194 /* Insert/renew unicast filters */
4196 efx_ef10_filter_insert_def(efx, false, false);
4197 efx_ef10_filter_insert_addr_list(efx, false, false);
4199 /* If any of the filters failed to insert, fall back to
4200 * promiscuous mode - add in the uc_def filter. But keep
4201 * our individual unicast filters.
4203 if (efx_ef10_filter_insert_addr_list(efx, false, false))
4204 efx_ef10_filter_insert_def(efx, false, false);
4207 /* Insert/renew multicast filters */
4208 /* If changing promiscuous state with cascaded multicast filters, remove
4209 * old filters first, so that packets are dropped rather than duplicated
4211 if (nic_data->workaround_26807 && efx->mc_promisc != mc_promisc)
4212 efx_ef10_filter_remove_old(efx);
4214 if (nic_data->workaround_26807) {
4215 /* If we failed to insert promiscuous filters, rollback
4216 * and fall back to individual multicast filters
4218 if (efx_ef10_filter_insert_def(efx, true, true)) {
4219 /* Changing promisc state, so remove old filters */
4220 efx_ef10_filter_remove_old(efx);
4221 efx_ef10_filter_insert_addr_list(efx, true, false);
4224 /* If we failed to insert promiscuous filters, don't
4225 * rollback. Regardless, also insert the mc_list
4227 efx_ef10_filter_insert_def(efx, true, false);
4228 efx_ef10_filter_insert_addr_list(efx, true, false);
4231 /* If any filters failed to insert, rollback and fall back to
4232 * promiscuous mode - mc_def filter and maybe broadcast. If
4233 * that fails, roll back again and insert as many of our
4234 * individual multicast filters as we can.
4236 if (efx_ef10_filter_insert_addr_list(efx, true, true)) {
4237 /* Changing promisc state, so remove old filters */
4238 if (nic_data->workaround_26807)
4239 efx_ef10_filter_remove_old(efx);
4240 if (efx_ef10_filter_insert_def(efx, true, true))
4241 efx_ef10_filter_insert_addr_list(efx, true, false);
4245 efx_ef10_filter_remove_old(efx);
4246 efx->mc_promisc = mc_promisc;
4249 static int efx_ef10_set_mac_address(struct efx_nic *efx)
4251 MCDI_DECLARE_BUF(inbuf, MC_CMD_VADAPTOR_SET_MAC_IN_LEN);
4252 struct efx_ef10_nic_data *nic_data = efx->nic_data;
4253 bool was_enabled = efx->port_enabled;
4256 efx_device_detach_sync(efx);
4257 efx_net_stop(efx->net_dev);
4258 down_write(&efx->filter_sem);
4259 efx_ef10_filter_table_remove(efx);
4261 ether_addr_copy(MCDI_PTR(inbuf, VADAPTOR_SET_MAC_IN_MACADDR),
4262 efx->net_dev->dev_addr);
4263 MCDI_SET_DWORD(inbuf, VADAPTOR_SET_MAC_IN_UPSTREAM_PORT_ID,
4264 nic_data->vport_id);
4265 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_VADAPTOR_SET_MAC, inbuf,
4266 sizeof(inbuf), NULL, 0, NULL);
4268 efx_ef10_filter_table_probe(efx);
4269 up_write(&efx->filter_sem);
4271 efx_net_open(efx->net_dev);
4272 netif_device_attach(efx->net_dev);
4274 #ifdef CONFIG_SFC_SRIOV
4275 if (efx->pci_dev->is_virtfn && efx->pci_dev->physfn) {
4276 struct pci_dev *pci_dev_pf = efx->pci_dev->physfn;
4279 struct efx_nic *efx_pf;
4281 /* Switch to PF and change MAC address on vport */
4282 efx_pf = pci_get_drvdata(pci_dev_pf);
4284 rc = efx_ef10_sriov_set_vf_mac(efx_pf,
4286 efx->net_dev->dev_addr);
4288 struct efx_nic *efx_pf = pci_get_drvdata(pci_dev_pf);
4289 struct efx_ef10_nic_data *nic_data = efx_pf->nic_data;
4292 /* MAC address successfully changed by VF (with MAC
4293 * spoofing) so update the parent PF if possible.
4295 for (i = 0; i < efx_pf->vf_count; ++i) {
4296 struct ef10_vf *vf = nic_data->vf + i;
4298 if (vf->efx == efx) {
4299 ether_addr_copy(vf->mac,
4300 efx->net_dev->dev_addr);
4308 netif_err(efx, drv, efx->net_dev,
4309 "Cannot change MAC address; use sfboot to enable"
4310 " mac-spoofing on this interface\n");
4311 } else if (rc == -ENOSYS && !efx_ef10_is_vf(efx)) {
4312 /* If the active MCFW does not support MC_CMD_VADAPTOR_SET_MAC
4313 * fall-back to the method of changing the MAC address on the
4314 * vport. This only applies to PFs because such versions of
4315 * MCFW do not support VFs.
4317 rc = efx_ef10_vport_set_mac_address(efx);
4319 efx_mcdi_display_error(efx, MC_CMD_VADAPTOR_SET_MAC,
4320 sizeof(inbuf), NULL, 0, rc);
4326 static int efx_ef10_mac_reconfigure(struct efx_nic *efx)
4328 efx_ef10_filter_sync_rx_mode(efx);
4330 return efx_mcdi_set_mac(efx);
4333 static int efx_ef10_mac_reconfigure_vf(struct efx_nic *efx)
4335 efx_ef10_filter_sync_rx_mode(efx);
4340 static int efx_ef10_start_bist(struct efx_nic *efx, u32 bist_type)
4342 MCDI_DECLARE_BUF(inbuf, MC_CMD_START_BIST_IN_LEN);
4344 MCDI_SET_DWORD(inbuf, START_BIST_IN_TYPE, bist_type);
4345 return efx_mcdi_rpc(efx, MC_CMD_START_BIST, inbuf, sizeof(inbuf),
4349 /* MC BISTs follow a different poll mechanism to phy BISTs.
4350 * The BIST is done in the poll handler on the MC, and the MCDI command
4351 * will block until the BIST is done.
4353 static int efx_ef10_poll_bist(struct efx_nic *efx)
4356 MCDI_DECLARE_BUF(outbuf, MC_CMD_POLL_BIST_OUT_LEN);
4360 rc = efx_mcdi_rpc(efx, MC_CMD_POLL_BIST, NULL, 0,
4361 outbuf, sizeof(outbuf), &outlen);
4365 if (outlen < MC_CMD_POLL_BIST_OUT_LEN)
4368 result = MCDI_DWORD(outbuf, POLL_BIST_OUT_RESULT);
4370 case MC_CMD_POLL_BIST_PASSED:
4371 netif_dbg(efx, hw, efx->net_dev, "BIST passed.\n");
4373 case MC_CMD_POLL_BIST_TIMEOUT:
4374 netif_err(efx, hw, efx->net_dev, "BIST timed out\n");
4376 case MC_CMD_POLL_BIST_FAILED:
4377 netif_err(efx, hw, efx->net_dev, "BIST failed.\n");
4380 netif_err(efx, hw, efx->net_dev,
4381 "BIST returned unknown result %u", result);
4386 static int efx_ef10_run_bist(struct efx_nic *efx, u32 bist_type)
4390 netif_dbg(efx, drv, efx->net_dev, "starting BIST type %u\n", bist_type);
4392 rc = efx_ef10_start_bist(efx, bist_type);
4396 return efx_ef10_poll_bist(efx);
4400 efx_ef10_test_chip(struct efx_nic *efx, struct efx_self_tests *tests)
4404 efx_reset_down(efx, RESET_TYPE_WORLD);
4406 rc = efx_mcdi_rpc(efx, MC_CMD_ENABLE_OFFLINE_BIST,
4407 NULL, 0, NULL, 0, NULL);
4411 tests->memory = efx_ef10_run_bist(efx, MC_CMD_MC_MEM_BIST) ? -1 : 1;
4412 tests->registers = efx_ef10_run_bist(efx, MC_CMD_REG_BIST) ? -1 : 1;
4414 rc = efx_mcdi_reset(efx, RESET_TYPE_WORLD);
4419 rc2 = efx_reset_up(efx, RESET_TYPE_WORLD, rc == 0);
4420 return rc ? rc : rc2;
4423 #ifdef CONFIG_SFC_MTD
4425 struct efx_ef10_nvram_type_info {
4426 u16 type, type_mask;
4431 static const struct efx_ef10_nvram_type_info efx_ef10_nvram_types[] = {
4432 { NVRAM_PARTITION_TYPE_MC_FIRMWARE, 0, 0, "sfc_mcfw" },
4433 { NVRAM_PARTITION_TYPE_MC_FIRMWARE_BACKUP, 0, 0, "sfc_mcfw_backup" },
4434 { NVRAM_PARTITION_TYPE_EXPANSION_ROM, 0, 0, "sfc_exp_rom" },
4435 { NVRAM_PARTITION_TYPE_STATIC_CONFIG, 0, 0, "sfc_static_cfg" },
4436 { NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG, 0, 0, "sfc_dynamic_cfg" },
4437 { NVRAM_PARTITION_TYPE_EXPROM_CONFIG_PORT0, 0, 0, "sfc_exp_rom_cfg" },
4438 { NVRAM_PARTITION_TYPE_EXPROM_CONFIG_PORT1, 0, 1, "sfc_exp_rom_cfg" },
4439 { NVRAM_PARTITION_TYPE_EXPROM_CONFIG_PORT2, 0, 2, "sfc_exp_rom_cfg" },
4440 { NVRAM_PARTITION_TYPE_EXPROM_CONFIG_PORT3, 0, 3, "sfc_exp_rom_cfg" },
4441 { NVRAM_PARTITION_TYPE_LICENSE, 0, 0, "sfc_license" },
4442 { NVRAM_PARTITION_TYPE_PHY_MIN, 0xff, 0, "sfc_phy_fw" },
4445 static int efx_ef10_mtd_probe_partition(struct efx_nic *efx,
4446 struct efx_mcdi_mtd_partition *part,
4449 MCDI_DECLARE_BUF(inbuf, MC_CMD_NVRAM_METADATA_IN_LEN);
4450 MCDI_DECLARE_BUF(outbuf, MC_CMD_NVRAM_METADATA_OUT_LENMAX);
4451 const struct efx_ef10_nvram_type_info *info;
4452 size_t size, erase_size, outlen;
4456 for (info = efx_ef10_nvram_types; ; info++) {
4458 efx_ef10_nvram_types + ARRAY_SIZE(efx_ef10_nvram_types))
4460 if ((type & ~info->type_mask) == info->type)
4463 if (info->port != efx_port_num(efx))
4466 rc = efx_mcdi_nvram_info(efx, type, &size, &erase_size, &protected);
4470 return -ENODEV; /* hide it */
4472 part->nvram_type = type;
4474 MCDI_SET_DWORD(inbuf, NVRAM_METADATA_IN_TYPE, type);
4475 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_METADATA, inbuf, sizeof(inbuf),
4476 outbuf, sizeof(outbuf), &outlen);
4479 if (outlen < MC_CMD_NVRAM_METADATA_OUT_LENMIN)
4481 if (MCDI_DWORD(outbuf, NVRAM_METADATA_OUT_FLAGS) &
4482 (1 << MC_CMD_NVRAM_METADATA_OUT_SUBTYPE_VALID_LBN))
4483 part->fw_subtype = MCDI_DWORD(outbuf,
4484 NVRAM_METADATA_OUT_SUBTYPE);
4486 part->common.dev_type_name = "EF10 NVRAM manager";
4487 part->common.type_name = info->name;
4489 part->common.mtd.type = MTD_NORFLASH;
4490 part->common.mtd.flags = MTD_CAP_NORFLASH;
4491 part->common.mtd.size = size;
4492 part->common.mtd.erasesize = erase_size;
4497 static int efx_ef10_mtd_probe(struct efx_nic *efx)
4499 MCDI_DECLARE_BUF(outbuf, MC_CMD_NVRAM_PARTITIONS_OUT_LENMAX);
4500 struct efx_mcdi_mtd_partition *parts;
4501 size_t outlen, n_parts_total, i, n_parts;
4507 BUILD_BUG_ON(MC_CMD_NVRAM_PARTITIONS_IN_LEN != 0);
4508 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_PARTITIONS, NULL, 0,
4509 outbuf, sizeof(outbuf), &outlen);
4512 if (outlen < MC_CMD_NVRAM_PARTITIONS_OUT_LENMIN)
4515 n_parts_total = MCDI_DWORD(outbuf, NVRAM_PARTITIONS_OUT_NUM_PARTITIONS);
4517 MCDI_VAR_ARRAY_LEN(outlen, NVRAM_PARTITIONS_OUT_TYPE_ID))
4520 parts = kcalloc(n_parts_total, sizeof(*parts), GFP_KERNEL);
4525 for (i = 0; i < n_parts_total; i++) {
4526 type = MCDI_ARRAY_DWORD(outbuf, NVRAM_PARTITIONS_OUT_TYPE_ID,
4528 rc = efx_ef10_mtd_probe_partition(efx, &parts[n_parts], type);
4531 else if (rc != -ENODEV)
4535 rc = efx_mtd_add(efx, &parts[0].common, n_parts, sizeof(*parts));
4542 #endif /* CONFIG_SFC_MTD */
4544 static void efx_ef10_ptp_write_host_time(struct efx_nic *efx, u32 host_time)
4546 _efx_writed(efx, cpu_to_le32(host_time), ER_DZ_MC_DB_LWRD);
4549 static void efx_ef10_ptp_write_host_time_vf(struct efx_nic *efx,
4552 static int efx_ef10_rx_enable_timestamping(struct efx_channel *channel,
4555 MCDI_DECLARE_BUF(inbuf, MC_CMD_PTP_IN_TIME_EVENT_SUBSCRIBE_LEN);
4558 if (channel->sync_events_state == SYNC_EVENTS_REQUESTED ||
4559 channel->sync_events_state == SYNC_EVENTS_VALID ||
4560 (temp && channel->sync_events_state == SYNC_EVENTS_DISABLED))
4562 channel->sync_events_state = SYNC_EVENTS_REQUESTED;
4564 MCDI_SET_DWORD(inbuf, PTP_IN_OP, MC_CMD_PTP_OP_TIME_EVENT_SUBSCRIBE);
4565 MCDI_SET_DWORD(inbuf, PTP_IN_PERIPH_ID, 0);
4566 MCDI_SET_DWORD(inbuf, PTP_IN_TIME_EVENT_SUBSCRIBE_QUEUE,
4569 rc = efx_mcdi_rpc(channel->efx, MC_CMD_PTP,
4570 inbuf, sizeof(inbuf), NULL, 0, NULL);
4573 channel->sync_events_state = temp ? SYNC_EVENTS_QUIESCENT :
4574 SYNC_EVENTS_DISABLED;
4579 static int efx_ef10_rx_disable_timestamping(struct efx_channel *channel,
4582 MCDI_DECLARE_BUF(inbuf, MC_CMD_PTP_IN_TIME_EVENT_UNSUBSCRIBE_LEN);
4585 if (channel->sync_events_state == SYNC_EVENTS_DISABLED ||
4586 (temp && channel->sync_events_state == SYNC_EVENTS_QUIESCENT))
4588 if (channel->sync_events_state == SYNC_EVENTS_QUIESCENT) {
4589 channel->sync_events_state = SYNC_EVENTS_DISABLED;
4592 channel->sync_events_state = temp ? SYNC_EVENTS_QUIESCENT :
4593 SYNC_EVENTS_DISABLED;
4595 MCDI_SET_DWORD(inbuf, PTP_IN_OP, MC_CMD_PTP_OP_TIME_EVENT_UNSUBSCRIBE);
4596 MCDI_SET_DWORD(inbuf, PTP_IN_PERIPH_ID, 0);
4597 MCDI_SET_DWORD(inbuf, PTP_IN_TIME_EVENT_UNSUBSCRIBE_CONTROL,
4598 MC_CMD_PTP_IN_TIME_EVENT_UNSUBSCRIBE_SINGLE);
4599 MCDI_SET_DWORD(inbuf, PTP_IN_TIME_EVENT_UNSUBSCRIBE_QUEUE,
4602 rc = efx_mcdi_rpc(channel->efx, MC_CMD_PTP,
4603 inbuf, sizeof(inbuf), NULL, 0, NULL);
4608 static int efx_ef10_ptp_set_ts_sync_events(struct efx_nic *efx, bool en,
4611 int (*set)(struct efx_channel *channel, bool temp);
4612 struct efx_channel *channel;
4615 efx_ef10_rx_enable_timestamping :
4616 efx_ef10_rx_disable_timestamping;
4618 efx_for_each_channel(channel, efx) {
4619 int rc = set(channel, temp);
4620 if (en && rc != 0) {
4621 efx_ef10_ptp_set_ts_sync_events(efx, false, temp);
4629 static int efx_ef10_ptp_set_ts_config_vf(struct efx_nic *efx,
4630 struct hwtstamp_config *init)
4635 static int efx_ef10_ptp_set_ts_config(struct efx_nic *efx,
4636 struct hwtstamp_config *init)
4640 switch (init->rx_filter) {
4641 case HWTSTAMP_FILTER_NONE:
4642 efx_ef10_ptp_set_ts_sync_events(efx, false, false);
4643 /* if TX timestamping is still requested then leave PTP on */
4644 return efx_ptp_change_mode(efx,
4645 init->tx_type != HWTSTAMP_TX_OFF, 0);
4646 case HWTSTAMP_FILTER_ALL:
4647 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
4648 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
4649 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
4650 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
4651 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
4652 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
4653 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
4654 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
4655 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
4656 case HWTSTAMP_FILTER_PTP_V2_EVENT:
4657 case HWTSTAMP_FILTER_PTP_V2_SYNC:
4658 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
4659 init->rx_filter = HWTSTAMP_FILTER_ALL;
4660 rc = efx_ptp_change_mode(efx, true, 0);
4662 rc = efx_ef10_ptp_set_ts_sync_events(efx, true, false);
4664 efx_ptp_change_mode(efx, false, 0);
4671 const struct efx_nic_type efx_hunt_a0_vf_nic_type = {
4673 .mem_bar = EFX_MEM_VF_BAR,
4674 .mem_map_size = efx_ef10_mem_map_size,
4675 .probe = efx_ef10_probe_vf,
4676 .remove = efx_ef10_remove,
4677 .dimension_resources = efx_ef10_dimension_resources,
4678 .init = efx_ef10_init_nic,
4679 .fini = efx_port_dummy_op_void,
4680 .map_reset_reason = efx_ef10_map_reset_reason,
4681 .map_reset_flags = efx_ef10_map_reset_flags,
4682 .reset = efx_ef10_reset,
4683 .probe_port = efx_mcdi_port_probe,
4684 .remove_port = efx_mcdi_port_remove,
4685 .fini_dmaq = efx_ef10_fini_dmaq,
4686 .prepare_flr = efx_ef10_prepare_flr,
4687 .finish_flr = efx_port_dummy_op_void,
4688 .describe_stats = efx_ef10_describe_stats,
4689 .update_stats = efx_ef10_update_stats_vf,
4690 .start_stats = efx_port_dummy_op_void,
4691 .pull_stats = efx_port_dummy_op_void,
4692 .stop_stats = efx_port_dummy_op_void,
4693 .set_id_led = efx_mcdi_set_id_led,
4694 .push_irq_moderation = efx_ef10_push_irq_moderation,
4695 .reconfigure_mac = efx_ef10_mac_reconfigure_vf,
4696 .check_mac_fault = efx_mcdi_mac_check_fault,
4697 .reconfigure_port = efx_mcdi_port_reconfigure,
4698 .get_wol = efx_ef10_get_wol_vf,
4699 .set_wol = efx_ef10_set_wol_vf,
4700 .resume_wol = efx_port_dummy_op_void,
4701 .mcdi_request = efx_ef10_mcdi_request,
4702 .mcdi_poll_response = efx_ef10_mcdi_poll_response,
4703 .mcdi_read_response = efx_ef10_mcdi_read_response,
4704 .mcdi_poll_reboot = efx_ef10_mcdi_poll_reboot,
4705 .mcdi_reboot_detected = efx_ef10_mcdi_reboot_detected,
4706 .irq_enable_master = efx_port_dummy_op_void,
4707 .irq_test_generate = efx_ef10_irq_test_generate,
4708 .irq_disable_non_ev = efx_port_dummy_op_void,
4709 .irq_handle_msi = efx_ef10_msi_interrupt,
4710 .irq_handle_legacy = efx_ef10_legacy_interrupt,
4711 .tx_probe = efx_ef10_tx_probe,
4712 .tx_init = efx_ef10_tx_init,
4713 .tx_remove = efx_ef10_tx_remove,
4714 .tx_write = efx_ef10_tx_write,
4715 .rx_push_rss_config = efx_ef10_vf_rx_push_rss_config,
4716 .rx_probe = efx_ef10_rx_probe,
4717 .rx_init = efx_ef10_rx_init,
4718 .rx_remove = efx_ef10_rx_remove,
4719 .rx_write = efx_ef10_rx_write,
4720 .rx_defer_refill = efx_ef10_rx_defer_refill,
4721 .ev_probe = efx_ef10_ev_probe,
4722 .ev_init = efx_ef10_ev_init,
4723 .ev_fini = efx_ef10_ev_fini,
4724 .ev_remove = efx_ef10_ev_remove,
4725 .ev_process = efx_ef10_ev_process,
4726 .ev_read_ack = efx_ef10_ev_read_ack,
4727 .ev_test_generate = efx_ef10_ev_test_generate,
4728 .filter_table_probe = efx_ef10_filter_table_probe,
4729 .filter_table_restore = efx_ef10_filter_table_restore,
4730 .filter_table_remove = efx_ef10_filter_table_remove,
4731 .filter_update_rx_scatter = efx_ef10_filter_update_rx_scatter,
4732 .filter_insert = efx_ef10_filter_insert,
4733 .filter_remove_safe = efx_ef10_filter_remove_safe,
4734 .filter_get_safe = efx_ef10_filter_get_safe,
4735 .filter_clear_rx = efx_ef10_filter_clear_rx,
4736 .filter_count_rx_used = efx_ef10_filter_count_rx_used,
4737 .filter_get_rx_id_limit = efx_ef10_filter_get_rx_id_limit,
4738 .filter_get_rx_ids = efx_ef10_filter_get_rx_ids,
4739 #ifdef CONFIG_RFS_ACCEL
4740 .filter_rfs_insert = efx_ef10_filter_rfs_insert,
4741 .filter_rfs_expire_one = efx_ef10_filter_rfs_expire_one,
4743 #ifdef CONFIG_SFC_MTD
4744 .mtd_probe = efx_port_dummy_op_int,
4746 .ptp_write_host_time = efx_ef10_ptp_write_host_time_vf,
4747 .ptp_set_ts_config = efx_ef10_ptp_set_ts_config_vf,
4748 #ifdef CONFIG_SFC_SRIOV
4749 .vswitching_probe = efx_ef10_vswitching_probe_vf,
4750 .vswitching_restore = efx_ef10_vswitching_restore_vf,
4751 .vswitching_remove = efx_ef10_vswitching_remove_vf,
4752 .sriov_get_phys_port_id = efx_ef10_sriov_get_phys_port_id,
4754 .get_mac_address = efx_ef10_get_mac_address_vf,
4755 .set_mac_address = efx_ef10_set_mac_address,
4757 .revision = EFX_REV_HUNT_A0,
4758 .max_dma_mask = DMA_BIT_MASK(ESF_DZ_TX_KER_BUF_ADDR_WIDTH),
4759 .rx_prefix_size = ES_DZ_RX_PREFIX_SIZE,
4760 .rx_hash_offset = ES_DZ_RX_PREFIX_HASH_OFST,
4761 .rx_ts_offset = ES_DZ_RX_PREFIX_TSTAMP_OFST,
4762 .can_rx_scatter = true,
4763 .always_rx_scatter = true,
4764 .max_interrupt_mode = EFX_INT_MODE_MSIX,
4765 .timer_period_max = 1 << ERF_DD_EVQ_IND_TIMER_VAL_WIDTH,
4766 .offload_features = (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
4767 NETIF_F_RXHASH | NETIF_F_NTUPLE),
4769 .max_rx_ip_filters = HUNT_FILTER_TBL_ROWS,
4770 .hwtstamp_filters = 1 << HWTSTAMP_FILTER_NONE |
4771 1 << HWTSTAMP_FILTER_ALL,
4774 const struct efx_nic_type efx_hunt_a0_nic_type = {
4776 .mem_bar = EFX_MEM_BAR,
4777 .mem_map_size = efx_ef10_mem_map_size,
4778 .probe = efx_ef10_probe_pf,
4779 .remove = efx_ef10_remove,
4780 .dimension_resources = efx_ef10_dimension_resources,
4781 .init = efx_ef10_init_nic,
4782 .fini = efx_port_dummy_op_void,
4783 .map_reset_reason = efx_ef10_map_reset_reason,
4784 .map_reset_flags = efx_ef10_map_reset_flags,
4785 .reset = efx_ef10_reset,
4786 .probe_port = efx_mcdi_port_probe,
4787 .remove_port = efx_mcdi_port_remove,
4788 .fini_dmaq = efx_ef10_fini_dmaq,
4789 .prepare_flr = efx_ef10_prepare_flr,
4790 .finish_flr = efx_port_dummy_op_void,
4791 .describe_stats = efx_ef10_describe_stats,
4792 .update_stats = efx_ef10_update_stats_pf,
4793 .start_stats = efx_mcdi_mac_start_stats,
4794 .pull_stats = efx_mcdi_mac_pull_stats,
4795 .stop_stats = efx_mcdi_mac_stop_stats,
4796 .set_id_led = efx_mcdi_set_id_led,
4797 .push_irq_moderation = efx_ef10_push_irq_moderation,
4798 .reconfigure_mac = efx_ef10_mac_reconfigure,
4799 .check_mac_fault = efx_mcdi_mac_check_fault,
4800 .reconfigure_port = efx_mcdi_port_reconfigure,
4801 .get_wol = efx_ef10_get_wol,
4802 .set_wol = efx_ef10_set_wol,
4803 .resume_wol = efx_port_dummy_op_void,
4804 .test_chip = efx_ef10_test_chip,
4805 .test_nvram = efx_mcdi_nvram_test_all,
4806 .mcdi_request = efx_ef10_mcdi_request,
4807 .mcdi_poll_response = efx_ef10_mcdi_poll_response,
4808 .mcdi_read_response = efx_ef10_mcdi_read_response,
4809 .mcdi_poll_reboot = efx_ef10_mcdi_poll_reboot,
4810 .mcdi_reboot_detected = efx_ef10_mcdi_reboot_detected,
4811 .irq_enable_master = efx_port_dummy_op_void,
4812 .irq_test_generate = efx_ef10_irq_test_generate,
4813 .irq_disable_non_ev = efx_port_dummy_op_void,
4814 .irq_handle_msi = efx_ef10_msi_interrupt,
4815 .irq_handle_legacy = efx_ef10_legacy_interrupt,
4816 .tx_probe = efx_ef10_tx_probe,
4817 .tx_init = efx_ef10_tx_init,
4818 .tx_remove = efx_ef10_tx_remove,
4819 .tx_write = efx_ef10_tx_write,
4820 .rx_push_rss_config = efx_ef10_pf_rx_push_rss_config,
4821 .rx_probe = efx_ef10_rx_probe,
4822 .rx_init = efx_ef10_rx_init,
4823 .rx_remove = efx_ef10_rx_remove,
4824 .rx_write = efx_ef10_rx_write,
4825 .rx_defer_refill = efx_ef10_rx_defer_refill,
4826 .ev_probe = efx_ef10_ev_probe,
4827 .ev_init = efx_ef10_ev_init,
4828 .ev_fini = efx_ef10_ev_fini,
4829 .ev_remove = efx_ef10_ev_remove,
4830 .ev_process = efx_ef10_ev_process,
4831 .ev_read_ack = efx_ef10_ev_read_ack,
4832 .ev_test_generate = efx_ef10_ev_test_generate,
4833 .filter_table_probe = efx_ef10_filter_table_probe,
4834 .filter_table_restore = efx_ef10_filter_table_restore,
4835 .filter_table_remove = efx_ef10_filter_table_remove,
4836 .filter_update_rx_scatter = efx_ef10_filter_update_rx_scatter,
4837 .filter_insert = efx_ef10_filter_insert,
4838 .filter_remove_safe = efx_ef10_filter_remove_safe,
4839 .filter_get_safe = efx_ef10_filter_get_safe,
4840 .filter_clear_rx = efx_ef10_filter_clear_rx,
4841 .filter_count_rx_used = efx_ef10_filter_count_rx_used,
4842 .filter_get_rx_id_limit = efx_ef10_filter_get_rx_id_limit,
4843 .filter_get_rx_ids = efx_ef10_filter_get_rx_ids,
4844 #ifdef CONFIG_RFS_ACCEL
4845 .filter_rfs_insert = efx_ef10_filter_rfs_insert,
4846 .filter_rfs_expire_one = efx_ef10_filter_rfs_expire_one,
4848 #ifdef CONFIG_SFC_MTD
4849 .mtd_probe = efx_ef10_mtd_probe,
4850 .mtd_rename = efx_mcdi_mtd_rename,
4851 .mtd_read = efx_mcdi_mtd_read,
4852 .mtd_erase = efx_mcdi_mtd_erase,
4853 .mtd_write = efx_mcdi_mtd_write,
4854 .mtd_sync = efx_mcdi_mtd_sync,
4856 .ptp_write_host_time = efx_ef10_ptp_write_host_time,
4857 .ptp_set_ts_sync_events = efx_ef10_ptp_set_ts_sync_events,
4858 .ptp_set_ts_config = efx_ef10_ptp_set_ts_config,
4859 #ifdef CONFIG_SFC_SRIOV
4860 .sriov_configure = efx_ef10_sriov_configure,
4861 .sriov_init = efx_ef10_sriov_init,
4862 .sriov_fini = efx_ef10_sriov_fini,
4863 .sriov_wanted = efx_ef10_sriov_wanted,
4864 .sriov_reset = efx_ef10_sriov_reset,
4865 .sriov_flr = efx_ef10_sriov_flr,
4866 .sriov_set_vf_mac = efx_ef10_sriov_set_vf_mac,
4867 .sriov_set_vf_vlan = efx_ef10_sriov_set_vf_vlan,
4868 .sriov_set_vf_spoofchk = efx_ef10_sriov_set_vf_spoofchk,
4869 .sriov_get_vf_config = efx_ef10_sriov_get_vf_config,
4870 .sriov_set_vf_link_state = efx_ef10_sriov_set_vf_link_state,
4871 .vswitching_probe = efx_ef10_vswitching_probe_pf,
4872 .vswitching_restore = efx_ef10_vswitching_restore_pf,
4873 .vswitching_remove = efx_ef10_vswitching_remove_pf,
4875 .get_mac_address = efx_ef10_get_mac_address_pf,
4876 .set_mac_address = efx_ef10_set_mac_address,
4878 .revision = EFX_REV_HUNT_A0,
4879 .max_dma_mask = DMA_BIT_MASK(ESF_DZ_TX_KER_BUF_ADDR_WIDTH),
4880 .rx_prefix_size = ES_DZ_RX_PREFIX_SIZE,
4881 .rx_hash_offset = ES_DZ_RX_PREFIX_HASH_OFST,
4882 .rx_ts_offset = ES_DZ_RX_PREFIX_TSTAMP_OFST,
4883 .can_rx_scatter = true,
4884 .always_rx_scatter = true,
4885 .max_interrupt_mode = EFX_INT_MODE_MSIX,
4886 .timer_period_max = 1 << ERF_DD_EVQ_IND_TIMER_VAL_WIDTH,
4887 .offload_features = (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
4888 NETIF_F_RXHASH | NETIF_F_NTUPLE),
4890 .max_rx_ip_filters = HUNT_FILTER_TBL_ROWS,
4891 .hwtstamp_filters = 1 << HWTSTAMP_FILTER_NONE |
4892 1 << HWTSTAMP_FILTER_ALL,