2 * Copyright 2008-2010 Cisco Systems, Inc. All rights reserved.
3 * Copyright 2007 Nuova Systems, Inc. All rights reserved.
5 * This program is free software; you may redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; version 2 of the License.
9 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
10 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
11 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
12 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
13 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
14 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
15 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 #include <linux/kernel.h>
21 #include <linux/errno.h>
22 #include <linux/types.h>
23 #include <linux/pci.h>
24 #include <linux/delay.h>
25 #include <linux/if_ether.h>
27 #include "vnic_resource.h"
28 #include "vnic_devcmd.h"
31 #include "vnic_stats.h"
34 #define VNIC_MAX_RES_HDR_SIZE \
35 (sizeof(struct vnic_resource_header) + \
36 sizeof(struct vnic_resource) * RES_TYPE_MAX)
37 #define VNIC_RES_STRIDE 128
39 void *vnic_dev_priv(struct vnic_dev *vdev)
44 static int vnic_dev_discover_res(struct vnic_dev *vdev,
45 struct vnic_dev_bar *bar, unsigned int num_bars)
47 struct vnic_resource_header __iomem *rh;
48 struct mgmt_barmap_hdr __iomem *mrh;
49 struct vnic_resource __iomem *r;
55 if (bar->len < VNIC_MAX_RES_HDR_SIZE) {
56 vdev_err("vNIC BAR0 res hdr length error\n");
63 vdev_err("vNIC BAR0 res hdr not mem-mapped\n");
67 /* Check for mgmt vnic in addition to normal vnic */
68 if ((ioread32(&rh->magic) != VNIC_RES_MAGIC) ||
69 (ioread32(&rh->version) != VNIC_RES_VERSION)) {
70 if ((ioread32(&mrh->magic) != MGMTVNIC_MAGIC) ||
71 (ioread32(&mrh->version) != MGMTVNIC_VERSION)) {
72 vdev_err("vNIC BAR0 res magic/version error exp (%lx/%lx) or (%lx/%lx), curr (%x/%x)\n",
73 VNIC_RES_MAGIC, VNIC_RES_VERSION,
74 MGMTVNIC_MAGIC, MGMTVNIC_VERSION,
75 ioread32(&rh->magic), ioread32(&rh->version));
80 if (ioread32(&mrh->magic) == MGMTVNIC_MAGIC)
81 r = (struct vnic_resource __iomem *)(mrh + 1);
83 r = (struct vnic_resource __iomem *)(rh + 1);
86 while ((type = ioread8(&r->type)) != RES_TYPE_EOL) {
88 u8 bar_num = ioread8(&r->bar);
89 u32 bar_offset = ioread32(&r->bar_offset);
90 u32 count = ioread32(&r->count);
95 if (bar_num >= num_bars)
98 if (!bar[bar_num].len || !bar[bar_num].vaddr)
105 case RES_TYPE_INTR_CTRL:
106 /* each count is stride bytes long */
107 len = count * VNIC_RES_STRIDE;
108 if (len + bar_offset > bar[bar_num].len) {
109 vdev_err("vNIC BAR0 resource %d out-of-bounds, offset 0x%x + size 0x%x > bar len 0x%lx\n",
110 type, bar_offset, len,
115 case RES_TYPE_INTR_PBA_LEGACY:
116 case RES_TYPE_DEVCMD:
117 case RES_TYPE_DEVCMD2:
124 vdev->res[type].count = count;
125 vdev->res[type].vaddr = (char __iomem *)bar[bar_num].vaddr +
127 vdev->res[type].bus_addr = bar[bar_num].bus_addr + bar_offset;
133 unsigned int vnic_dev_get_res_count(struct vnic_dev *vdev,
134 enum vnic_res_type type)
136 return vdev->res[type].count;
138 EXPORT_SYMBOL(vnic_dev_get_res_count);
140 void __iomem *vnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type,
143 if (!vdev->res[type].vaddr)
150 case RES_TYPE_INTR_CTRL:
151 return (char __iomem *)vdev->res[type].vaddr +
152 index * VNIC_RES_STRIDE;
154 return (char __iomem *)vdev->res[type].vaddr;
157 EXPORT_SYMBOL(vnic_dev_get_res);
159 static unsigned int vnic_dev_desc_ring_size(struct vnic_dev_ring *ring,
160 unsigned int desc_count, unsigned int desc_size)
162 /* The base address of the desc rings must be 512 byte aligned.
163 * Descriptor count is aligned to groups of 32 descriptors. A
164 * count of 0 means the maximum 4096 descriptors. Descriptor
165 * size is aligned to 16 bytes.
168 unsigned int count_align = 32;
169 unsigned int desc_align = 16;
171 ring->base_align = 512;
176 ring->desc_count = ALIGN(desc_count, count_align);
178 ring->desc_size = ALIGN(desc_size, desc_align);
180 ring->size = ring->desc_count * ring->desc_size;
181 ring->size_unaligned = ring->size + ring->base_align;
183 return ring->size_unaligned;
186 void vnic_dev_clear_desc_ring(struct vnic_dev_ring *ring)
188 memset(ring->descs, 0, ring->size);
191 int vnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring,
192 unsigned int desc_count, unsigned int desc_size)
194 vnic_dev_desc_ring_size(ring, desc_count, desc_size);
196 ring->descs_unaligned = pci_alloc_consistent(vdev->pdev,
197 ring->size_unaligned,
198 &ring->base_addr_unaligned);
200 if (!ring->descs_unaligned) {
201 vdev_err("Failed to allocate ring (size=%d), aborting\n",
206 ring->base_addr = ALIGN(ring->base_addr_unaligned,
208 ring->descs = (u8 *)ring->descs_unaligned +
209 (ring->base_addr - ring->base_addr_unaligned);
211 vnic_dev_clear_desc_ring(ring);
213 ring->desc_avail = ring->desc_count - 1;
218 void vnic_dev_free_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring)
221 pci_free_consistent(vdev->pdev,
222 ring->size_unaligned,
223 ring->descs_unaligned,
224 ring->base_addr_unaligned);
229 static int _vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
232 struct vnic_devcmd __iomem *devcmd = vdev->devcmd;
238 status = ioread32(&devcmd->status);
239 if (status == 0xFFFFFFFF) {
240 /* PCI-e target device is gone */
243 if (status & STAT_BUSY) {
244 vdev_neterr("Busy devcmd %d\n", _CMD_N(cmd));
248 if (_CMD_DIR(cmd) & _CMD_DIR_WRITE) {
249 for (i = 0; i < VNIC_DEVCMD_NARGS; i++)
250 writeq(vdev->args[i], &devcmd->args[i]);
254 iowrite32(cmd, &devcmd->cmd);
256 if ((_CMD_FLAGS(cmd) & _CMD_FLAGS_NOWAIT))
259 for (delay = 0; delay < wait; delay++) {
263 status = ioread32(&devcmd->status);
264 if (status == 0xFFFFFFFF) {
265 /* PCI-e target device is gone */
269 if (!(status & STAT_BUSY)) {
271 if (status & STAT_ERROR) {
272 err = (int)readq(&devcmd->args[0]);
273 if (err == ERR_EINVAL &&
274 cmd == CMD_CAPABILITY)
276 if (err != ERR_ECMDUNKNOWN ||
277 cmd != CMD_CAPABILITY)
278 vdev_neterr("Error %d devcmd %d\n",
283 if (_CMD_DIR(cmd) & _CMD_DIR_READ) {
285 for (i = 0; i < VNIC_DEVCMD_NARGS; i++)
286 vdev->args[i] = readq(&devcmd->args[i]);
293 vdev_neterr("Timedout devcmd %d\n", _CMD_N(cmd));
297 static int _vnic_dev_cmd2(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
300 struct devcmd2_controller *dc2c = vdev->devcmd2;
301 struct devcmd2_result *result = dc2c->result + dc2c->next_result;
304 u32 fetch_index, posted, new_posted;
306 posted = ioread32(&dc2c->wq_ctrl->posted_index);
307 fetch_index = ioread32(&dc2c->wq_ctrl->fetch_index);
309 if (posted == 0xFFFFFFFF || fetch_index == 0xFFFFFFFF)
312 new_posted = (posted + 1) % DEVCMD2_RING_SIZE;
314 if (new_posted == fetch_index) {
315 vdev_neterr("devcmd2 %d: wq is full. fetch index: %u, posted index: %u\n",
316 _CMD_N(cmd), fetch_index, posted);
319 dc2c->cmd_ring[posted].cmd = cmd;
320 dc2c->cmd_ring[posted].flags = 0;
322 if ((_CMD_FLAGS(cmd) & _CMD_FLAGS_NOWAIT))
323 dc2c->cmd_ring[posted].flags |= DEVCMD2_FNORESULT;
324 if (_CMD_DIR(cmd) & _CMD_DIR_WRITE)
325 for (i = 0; i < VNIC_DEVCMD_NARGS; i++)
326 dc2c->cmd_ring[posted].args[i] = vdev->args[i];
328 /* Adding write memory barrier prevents compiler and/or CPU reordering,
329 * thus avoiding descriptor posting before descriptor is initialized.
330 * Otherwise, hardware can read stale descriptor fields.
333 iowrite32(new_posted, &dc2c->wq_ctrl->posted_index);
335 if (dc2c->cmd_ring[posted].flags & DEVCMD2_FNORESULT)
338 for (delay = 0; delay < wait; delay++) {
339 if (result->color == dc2c->color) {
341 if (dc2c->next_result == dc2c->result_size) {
342 dc2c->next_result = 0;
343 dc2c->color = dc2c->color ? 0 : 1;
347 if (err != ERR_ECMDUNKNOWN ||
348 cmd != CMD_CAPABILITY)
349 vdev_neterr("Error %d devcmd %d\n",
353 if (_CMD_DIR(cmd) & _CMD_DIR_READ)
354 for (i = 0; i < VNIC_DEVCMD2_NARGS; i++)
355 vdev->args[i] = result->results[i];
362 vdev_neterr("devcmd %d timed out\n", _CMD_N(cmd));
367 static int vnic_dev_init_devcmd1(struct vnic_dev *vdev)
369 vdev->devcmd = vnic_dev_get_res(vdev, RES_TYPE_DEVCMD, 0);
372 vdev->devcmd_rtn = _vnic_dev_cmd;
377 static int vnic_dev_init_devcmd2(struct vnic_dev *vdev)
380 unsigned int fetch_index;
385 vdev->devcmd2 = kzalloc(sizeof(*vdev->devcmd2), GFP_KERNEL);
389 vdev->devcmd2->color = 1;
390 vdev->devcmd2->result_size = DEVCMD2_RING_SIZE;
391 err = enic_wq_devcmd2_alloc(vdev, &vdev->devcmd2->wq, DEVCMD2_RING_SIZE,
394 goto err_free_devcmd2;
396 fetch_index = ioread32(&vdev->devcmd2->wq.ctrl->fetch_index);
397 if (fetch_index == 0xFFFFFFFF) { /* check for hardware gone */
398 vdev_err("Fatal error in devcmd2 init - hardware surprise removal");
403 enic_wq_init_start(&vdev->devcmd2->wq, 0, fetch_index, fetch_index, 0,
405 vnic_wq_enable(&vdev->devcmd2->wq);
407 err = vnic_dev_alloc_desc_ring(vdev, &vdev->devcmd2->results_ring,
408 DEVCMD2_RING_SIZE, DEVCMD2_DESC_SIZE);
412 vdev->devcmd2->result = vdev->devcmd2->results_ring.descs;
413 vdev->devcmd2->cmd_ring = vdev->devcmd2->wq.ring.descs;
414 vdev->devcmd2->wq_ctrl = vdev->devcmd2->wq.ctrl;
415 vdev->args[0] = (u64)vdev->devcmd2->results_ring.base_addr |
417 vdev->args[1] = DEVCMD2_RING_SIZE;
419 err = _vnic_dev_cmd2(vdev, CMD_INITIALIZE_DEVCMD2, 1000);
421 goto err_free_desc_ring;
423 vdev->devcmd_rtn = _vnic_dev_cmd2;
428 vnic_dev_free_desc_ring(vdev, &vdev->devcmd2->results_ring);
430 vnic_wq_disable(&vdev->devcmd2->wq);
431 vnic_wq_free(&vdev->devcmd2->wq);
433 kfree(vdev->devcmd2);
434 vdev->devcmd2 = NULL;
439 static void vnic_dev_deinit_devcmd2(struct vnic_dev *vdev)
441 vnic_dev_free_desc_ring(vdev, &vdev->devcmd2->results_ring);
442 vnic_wq_disable(&vdev->devcmd2->wq);
443 vnic_wq_free(&vdev->devcmd2->wq);
444 kfree(vdev->devcmd2);
447 static int vnic_dev_cmd_proxy(struct vnic_dev *vdev,
448 enum vnic_devcmd_cmd proxy_cmd, enum vnic_devcmd_cmd cmd,
449 u64 *a0, u64 *a1, int wait)
454 memset(vdev->args, 0, sizeof(vdev->args));
456 vdev->args[0] = vdev->proxy_index;
461 err = vdev->devcmd_rtn(vdev, proxy_cmd, wait);
465 status = (u32)vdev->args[0];
466 if (status & STAT_ERROR) {
467 err = (int)vdev->args[1];
468 if (err != ERR_ECMDUNKNOWN ||
469 cmd != CMD_CAPABILITY)
470 vdev_neterr("Error %d proxy devcmd %d\n", err,
481 static int vnic_dev_cmd_no_proxy(struct vnic_dev *vdev,
482 enum vnic_devcmd_cmd cmd, u64 *a0, u64 *a1, int wait)
489 err = vdev->devcmd_rtn(vdev, cmd, wait);
497 void vnic_dev_cmd_proxy_by_index_start(struct vnic_dev *vdev, u16 index)
499 vdev->proxy = PROXY_BY_INDEX;
500 vdev->proxy_index = index;
503 void vnic_dev_cmd_proxy_end(struct vnic_dev *vdev)
505 vdev->proxy = PROXY_NONE;
506 vdev->proxy_index = 0;
509 int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
510 u64 *a0, u64 *a1, int wait)
512 memset(vdev->args, 0, sizeof(vdev->args));
514 switch (vdev->proxy) {
516 return vnic_dev_cmd_proxy(vdev, CMD_PROXY_BY_INDEX, cmd,
519 return vnic_dev_cmd_proxy(vdev, CMD_PROXY_BY_BDF, cmd,
523 return vnic_dev_cmd_no_proxy(vdev, cmd, a0, a1, wait);
527 static int vnic_dev_capable(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd)
529 u64 a0 = (u32)cmd, a1 = 0;
533 err = vnic_dev_cmd(vdev, CMD_CAPABILITY, &a0, &a1, wait);
538 int vnic_dev_fw_info(struct vnic_dev *vdev,
539 struct vnic_devcmd_fw_info **fw_info)
545 if (!vdev->fw_info) {
546 vdev->fw_info = pci_zalloc_consistent(vdev->pdev,
547 sizeof(struct vnic_devcmd_fw_info),
552 a0 = vdev->fw_info_pa;
553 a1 = sizeof(struct vnic_devcmd_fw_info);
555 /* only get fw_info once and cache it */
556 if (vnic_dev_capable(vdev, CMD_MCPU_FW_INFO))
557 err = vnic_dev_cmd(vdev, CMD_MCPU_FW_INFO,
560 err = vnic_dev_cmd(vdev, CMD_MCPU_FW_INFO_OLD,
564 *fw_info = vdev->fw_info;
569 int vnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, unsigned int size,
579 err = vnic_dev_cmd(vdev, CMD_DEV_SPEC, &a0, &a1, wait);
582 case 1: *(u8 *)value = (u8)a0; break;
583 case 2: *(u16 *)value = (u16)a0; break;
584 case 4: *(u32 *)value = (u32)a0; break;
585 case 8: *(u64 *)value = a0; break;
586 default: BUG(); break;
592 int vnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats)
598 vdev->stats = pci_alloc_consistent(vdev->pdev,
599 sizeof(struct vnic_stats), &vdev->stats_pa);
604 *stats = vdev->stats;
606 a1 = sizeof(struct vnic_stats);
608 return vnic_dev_cmd(vdev, CMD_STATS_DUMP, &a0, &a1, wait);
611 int vnic_dev_close(struct vnic_dev *vdev)
615 return vnic_dev_cmd(vdev, CMD_CLOSE, &a0, &a1, wait);
618 int vnic_dev_enable_wait(struct vnic_dev *vdev)
623 if (vnic_dev_capable(vdev, CMD_ENABLE_WAIT))
624 return vnic_dev_cmd(vdev, CMD_ENABLE_WAIT, &a0, &a1, wait);
626 return vnic_dev_cmd(vdev, CMD_ENABLE, &a0, &a1, wait);
629 int vnic_dev_disable(struct vnic_dev *vdev)
633 return vnic_dev_cmd(vdev, CMD_DISABLE, &a0, &a1, wait);
636 int vnic_dev_open(struct vnic_dev *vdev, int arg)
638 u64 a0 = (u32)arg, a1 = 0;
640 return vnic_dev_cmd(vdev, CMD_OPEN, &a0, &a1, wait);
643 int vnic_dev_open_done(struct vnic_dev *vdev, int *done)
651 err = vnic_dev_cmd(vdev, CMD_OPEN_STATUS, &a0, &a1, wait);
660 static int vnic_dev_soft_reset(struct vnic_dev *vdev, int arg)
662 u64 a0 = (u32)arg, a1 = 0;
664 return vnic_dev_cmd(vdev, CMD_SOFT_RESET, &a0, &a1, wait);
667 static int vnic_dev_soft_reset_done(struct vnic_dev *vdev, int *done)
675 err = vnic_dev_cmd(vdev, CMD_SOFT_RESET_STATUS, &a0, &a1, wait);
684 int vnic_dev_hang_reset(struct vnic_dev *vdev, int arg)
686 u64 a0 = (u32)arg, a1 = 0;
690 if (vnic_dev_capable(vdev, CMD_HANG_RESET)) {
691 return vnic_dev_cmd(vdev, CMD_HANG_RESET,
694 err = vnic_dev_soft_reset(vdev, arg);
697 return vnic_dev_init(vdev, 0);
701 int vnic_dev_hang_reset_done(struct vnic_dev *vdev, int *done)
709 if (vnic_dev_capable(vdev, CMD_HANG_RESET_STATUS)) {
710 err = vnic_dev_cmd(vdev, CMD_HANG_RESET_STATUS,
715 return vnic_dev_soft_reset_done(vdev, done);
723 int vnic_dev_hang_notify(struct vnic_dev *vdev)
727 return vnic_dev_cmd(vdev, CMD_HANG_NOTIFY, &a0, &a1, wait);
730 int vnic_dev_get_mac_addr(struct vnic_dev *vdev, u8 *mac_addr)
736 for (i = 0; i < ETH_ALEN; i++)
739 err = vnic_dev_cmd(vdev, CMD_GET_MAC_ADDR, &a0, &a1, wait);
743 for (i = 0; i < ETH_ALEN; i++)
744 mac_addr[i] = ((u8 *)&a0)[i];
749 int vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast,
750 int broadcast, int promisc, int allmulti)
756 a0 = (directed ? CMD_PFILTER_DIRECTED : 0) |
757 (multicast ? CMD_PFILTER_MULTICAST : 0) |
758 (broadcast ? CMD_PFILTER_BROADCAST : 0) |
759 (promisc ? CMD_PFILTER_PROMISCUOUS : 0) |
760 (allmulti ? CMD_PFILTER_ALL_MULTICAST : 0);
762 err = vnic_dev_cmd(vdev, CMD_PACKET_FILTER, &a0, &a1, wait);
764 vdev_neterr("Can't set packet filter\n");
769 int vnic_dev_add_addr(struct vnic_dev *vdev, const u8 *addr)
776 for (i = 0; i < ETH_ALEN; i++)
777 ((u8 *)&a0)[i] = addr[i];
779 err = vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait);
781 vdev_neterr("Can't add addr [%pM], %d\n", addr, err);
786 int vnic_dev_del_addr(struct vnic_dev *vdev, const u8 *addr)
793 for (i = 0; i < ETH_ALEN; i++)
794 ((u8 *)&a0)[i] = addr[i];
796 err = vnic_dev_cmd(vdev, CMD_ADDR_DEL, &a0, &a1, wait);
798 vdev_neterr("Can't del addr [%pM], %d\n", addr, err);
803 int vnic_dev_set_ig_vlan_rewrite_mode(struct vnic_dev *vdev,
804 u8 ig_vlan_rewrite_mode)
806 u64 a0 = ig_vlan_rewrite_mode, a1 = 0;
809 if (vnic_dev_capable(vdev, CMD_IG_VLAN_REWRITE_MODE))
810 return vnic_dev_cmd(vdev, CMD_IG_VLAN_REWRITE_MODE,
816 static int vnic_dev_notify_setcmd(struct vnic_dev *vdev,
817 void *notify_addr, dma_addr_t notify_pa, u16 intr)
823 memset(notify_addr, 0, sizeof(struct vnic_devcmd_notify));
824 vdev->notify = notify_addr;
825 vdev->notify_pa = notify_pa;
828 a1 = ((u64)intr << 32) & 0x0000ffff00000000ULL;
829 a1 += sizeof(struct vnic_devcmd_notify);
831 r = vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait);
832 vdev->notify_sz = (r == 0) ? (u32)a1 : 0;
836 int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr)
839 dma_addr_t notify_pa;
841 if (vdev->notify || vdev->notify_pa) {
842 vdev_neterr("notify block %p still allocated", vdev->notify);
846 notify_addr = pci_alloc_consistent(vdev->pdev,
847 sizeof(struct vnic_devcmd_notify),
852 return vnic_dev_notify_setcmd(vdev, notify_addr, notify_pa, intr);
855 static int vnic_dev_notify_unsetcmd(struct vnic_dev *vdev)
861 a0 = 0; /* paddr = 0 to unset notify buffer */
862 a1 = 0x0000ffff00000000ULL; /* intr num = -1 to unreg for intr */
863 a1 += sizeof(struct vnic_devcmd_notify);
865 err = vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait);
873 int vnic_dev_notify_unset(struct vnic_dev *vdev)
876 pci_free_consistent(vdev->pdev,
877 sizeof(struct vnic_devcmd_notify),
882 return vnic_dev_notify_unsetcmd(vdev);
885 static int vnic_dev_notify_ready(struct vnic_dev *vdev)
888 unsigned int nwords = vdev->notify_sz / 4;
892 if (!vdev->notify || !vdev->notify_sz)
897 memcpy(&vdev->notify_copy, vdev->notify, vdev->notify_sz);
898 words = (u32 *)&vdev->notify_copy;
899 for (i = 1; i < nwords; i++)
901 } while (csum != words[0]);
906 int vnic_dev_init(struct vnic_dev *vdev, int arg)
908 u64 a0 = (u32)arg, a1 = 0;
912 if (vnic_dev_capable(vdev, CMD_INIT))
913 r = vnic_dev_cmd(vdev, CMD_INIT, &a0, &a1, wait);
915 vnic_dev_cmd(vdev, CMD_INIT_v1, &a0, &a1, wait);
916 if (a0 & CMD_INITF_DEFAULT_MAC) {
917 /* Emulate these for old CMD_INIT_v1 which
918 * didn't pass a0 so no CMD_INITF_*.
920 vnic_dev_cmd(vdev, CMD_GET_MAC_ADDR, &a0, &a1, wait);
921 vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait);
927 int vnic_dev_deinit(struct vnic_dev *vdev)
932 return vnic_dev_cmd(vdev, CMD_DEINIT, &a0, &a1, wait);
935 void vnic_dev_intr_coal_timer_info_default(struct vnic_dev *vdev)
937 /* Default: hardware intr coal timer is in units of 1.5 usecs */
938 vdev->intr_coal_timer_info.mul = 2;
939 vdev->intr_coal_timer_info.div = 3;
940 vdev->intr_coal_timer_info.max_usec =
941 vnic_dev_intr_coal_timer_hw_to_usec(vdev, 0xffff);
944 int vnic_dev_intr_coal_timer_info(struct vnic_dev *vdev)
949 memset(vdev->args, 0, sizeof(vdev->args));
951 if (vnic_dev_capable(vdev, CMD_INTR_COAL_CONVERT))
952 err = vdev->devcmd_rtn(vdev, CMD_INTR_COAL_CONVERT, wait);
954 err = ERR_ECMDUNKNOWN;
956 /* Use defaults when firmware doesn't support the devcmd at all or
957 * supports it for only specific hardware
959 if ((err == ERR_ECMDUNKNOWN) ||
960 (!err && !(vdev->args[0] && vdev->args[1] && vdev->args[2]))) {
961 vdev_netwarn("Using default conversion factor for interrupt coalesce timer\n");
962 vnic_dev_intr_coal_timer_info_default(vdev);
967 vdev->intr_coal_timer_info.mul = (u32) vdev->args[0];
968 vdev->intr_coal_timer_info.div = (u32) vdev->args[1];
969 vdev->intr_coal_timer_info.max_usec = (u32) vdev->args[2];
975 int vnic_dev_link_status(struct vnic_dev *vdev)
977 if (!vnic_dev_notify_ready(vdev))
980 return vdev->notify_copy.link_state;
983 u32 vnic_dev_port_speed(struct vnic_dev *vdev)
985 if (!vnic_dev_notify_ready(vdev))
988 return vdev->notify_copy.port_speed;
991 u32 vnic_dev_msg_lvl(struct vnic_dev *vdev)
993 if (!vnic_dev_notify_ready(vdev))
996 return vdev->notify_copy.msglvl;
999 u32 vnic_dev_mtu(struct vnic_dev *vdev)
1001 if (!vnic_dev_notify_ready(vdev))
1004 return vdev->notify_copy.mtu;
1007 void vnic_dev_set_intr_mode(struct vnic_dev *vdev,
1008 enum vnic_dev_intr_mode intr_mode)
1010 vdev->intr_mode = intr_mode;
1013 enum vnic_dev_intr_mode vnic_dev_get_intr_mode(
1014 struct vnic_dev *vdev)
1016 return vdev->intr_mode;
1019 u32 vnic_dev_intr_coal_timer_usec_to_hw(struct vnic_dev *vdev, u32 usec)
1021 return (usec * vdev->intr_coal_timer_info.mul) /
1022 vdev->intr_coal_timer_info.div;
1025 u32 vnic_dev_intr_coal_timer_hw_to_usec(struct vnic_dev *vdev, u32 hw_cycles)
1027 return (hw_cycles * vdev->intr_coal_timer_info.div) /
1028 vdev->intr_coal_timer_info.mul;
1031 u32 vnic_dev_get_intr_coal_timer_max(struct vnic_dev *vdev)
1033 return vdev->intr_coal_timer_info.max_usec;
1036 void vnic_dev_unregister(struct vnic_dev *vdev)
1040 pci_free_consistent(vdev->pdev,
1041 sizeof(struct vnic_devcmd_notify),
1045 pci_free_consistent(vdev->pdev,
1046 sizeof(struct vnic_stats),
1047 vdev->stats, vdev->stats_pa);
1049 pci_free_consistent(vdev->pdev,
1050 sizeof(struct vnic_devcmd_fw_info),
1051 vdev->fw_info, vdev->fw_info_pa);
1053 vnic_dev_deinit_devcmd2(vdev);
1058 EXPORT_SYMBOL(vnic_dev_unregister);
1060 struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev,
1061 void *priv, struct pci_dev *pdev, struct vnic_dev_bar *bar,
1062 unsigned int num_bars)
1065 vdev = kzalloc(sizeof(struct vnic_dev), GFP_ATOMIC);
1073 if (vnic_dev_discover_res(vdev, bar, num_bars))
1079 vnic_dev_unregister(vdev);
1082 EXPORT_SYMBOL(vnic_dev_register);
1084 struct pci_dev *vnic_dev_get_pdev(struct vnic_dev *vdev)
1088 EXPORT_SYMBOL(vnic_dev_get_pdev);
1090 int vnic_devcmd_init(struct vnic_dev *vdev)
1095 res = vnic_dev_get_res(vdev, RES_TYPE_DEVCMD2, 0);
1097 err = vnic_dev_init_devcmd2(vdev);
1099 vdev_warn("DEVCMD2 init failed: %d, Using DEVCMD1",
1104 vdev_warn("DEVCMD2 resource not found (old firmware?) Using DEVCMD1\n");
1106 err = vnic_dev_init_devcmd1(vdev);
1108 vdev_err("DEVCMD1 initialization failed: %d", err);
1113 int vnic_dev_init_prov2(struct vnic_dev *vdev, u8 *buf, u32 len)
1121 prov_buf = pci_alloc_consistent(vdev->pdev, len, &prov_pa);
1125 memcpy(prov_buf, buf, len);
1129 ret = vnic_dev_cmd(vdev, CMD_INIT_PROV_INFO2, &a0, &a1, wait);
1131 pci_free_consistent(vdev->pdev, len, prov_buf, prov_pa);
1136 int vnic_dev_enable2(struct vnic_dev *vdev, int active)
1141 a0 = (active ? CMD_ENABLE2_ACTIVE : 0);
1143 return vnic_dev_cmd(vdev, CMD_ENABLE2, &a0, &a1, wait);
1146 static int vnic_dev_cmd_status(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
1149 u64 a0 = cmd, a1 = 0;
1153 ret = vnic_dev_cmd(vdev, CMD_STATUS, &a0, &a1, wait);
1160 int vnic_dev_enable2_done(struct vnic_dev *vdev, int *status)
1162 return vnic_dev_cmd_status(vdev, CMD_ENABLE2, status);
1165 int vnic_dev_deinit_done(struct vnic_dev *vdev, int *status)
1167 return vnic_dev_cmd_status(vdev, CMD_DEINIT, status);
1170 int vnic_dev_set_mac_addr(struct vnic_dev *vdev, u8 *mac_addr)
1176 for (i = 0; i < ETH_ALEN; i++)
1177 ((u8 *)&a0)[i] = mac_addr[i];
1179 return vnic_dev_cmd(vdev, CMD_SET_MAC_ADDR, &a0, &a1, wait);
1182 /* vnic_dev_classifier: Add/Delete classifier entries
1183 * @vdev: vdev of the device
1184 * @cmd: CLSF_ADD for Add filter
1185 * CLSF_DEL for Delete filter
1186 * @entry: In case of ADD filter, the caller passes the RQ number in this
1189 * This function stores the filter_id returned by the firmware in the
1190 * same variable before return;
1192 * In case of DEL filter, the caller passes the RQ number. Return
1193 * value is irrelevant.
1194 * @data: filter data
1196 int vnic_dev_classifier(struct vnic_dev *vdev, u8 cmd, u16 *entry,
1197 struct filter *data)
1203 struct filter_tlv *tlv, *tlv_va;
1204 struct filter_action *action;
1207 if (cmd == CLSF_ADD) {
1208 tlv_size = sizeof(struct filter) +
1209 sizeof(struct filter_action) +
1210 2 * sizeof(struct filter_tlv);
1211 tlv_va = pci_alloc_consistent(vdev->pdev, tlv_size, &tlv_pa);
1217 memset(tlv, 0, tlv_size);
1218 tlv->type = CLSF_TLV_FILTER;
1219 tlv->length = sizeof(struct filter);
1220 *(struct filter *)&tlv->val = *data;
1222 tlv = (struct filter_tlv *)((char *)tlv +
1223 sizeof(struct filter_tlv) +
1224 sizeof(struct filter));
1226 tlv->type = CLSF_TLV_ACTION;
1227 tlv->length = sizeof(struct filter_action);
1228 action = (struct filter_action *)&tlv->val;
1229 action->type = FILTER_ACTION_RQ_STEERING;
1230 action->u.rq_idx = *entry;
1232 ret = vnic_dev_cmd(vdev, CMD_ADD_FILTER, &a0, &a1, wait);
1234 pci_free_consistent(vdev->pdev, tlv_size, tlv_va, tlv_pa);
1235 } else if (cmd == CLSF_DEL) {
1237 ret = vnic_dev_cmd(vdev, CMD_DEL_FILTER, &a0, &a1, wait);