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"
30 #include "vnic_stats.h"
32 enum vnic_proxy_type {
46 struct vnic_res res[RES_TYPE_MAX];
47 enum vnic_dev_intr_mode intr_mode;
48 struct vnic_devcmd __iomem *devcmd;
49 struct vnic_devcmd_notify *notify;
50 struct vnic_devcmd_notify notify_copy;
53 dma_addr_t linkstatus_pa;
54 struct vnic_stats *stats;
56 struct vnic_devcmd_fw_info *fw_info;
57 dma_addr_t fw_info_pa;
58 enum vnic_proxy_type proxy;
60 u64 args[VNIC_DEVCMD_NARGS];
63 #define VNIC_MAX_RES_HDR_SIZE \
64 (sizeof(struct vnic_resource_header) + \
65 sizeof(struct vnic_resource) * RES_TYPE_MAX)
66 #define VNIC_RES_STRIDE 128
68 void *vnic_dev_priv(struct vnic_dev *vdev)
73 static int vnic_dev_discover_res(struct vnic_dev *vdev,
74 struct vnic_dev_bar *bar, unsigned int num_bars)
76 struct vnic_resource_header __iomem *rh;
77 struct vnic_resource __iomem *r;
83 if (bar->len < VNIC_MAX_RES_HDR_SIZE) {
84 pr_err("vNIC BAR0 res hdr length error\n");
90 pr_err("vNIC BAR0 res hdr not mem-mapped\n");
94 if (ioread32(&rh->magic) != VNIC_RES_MAGIC ||
95 ioread32(&rh->version) != VNIC_RES_VERSION) {
96 pr_err("vNIC BAR0 res magic/version error "
97 "exp (%lx/%lx) curr (%x/%x)\n",
98 VNIC_RES_MAGIC, VNIC_RES_VERSION,
99 ioread32(&rh->magic), ioread32(&rh->version));
103 r = (struct vnic_resource __iomem *)(rh + 1);
105 while ((type = ioread8(&r->type)) != RES_TYPE_EOL) {
107 u8 bar_num = ioread8(&r->bar);
108 u32 bar_offset = ioread32(&r->bar_offset);
109 u32 count = ioread32(&r->count);
114 if (bar_num >= num_bars)
117 if (!bar[bar_num].len || !bar[bar_num].vaddr)
124 case RES_TYPE_INTR_CTRL:
125 /* each count is stride bytes long */
126 len = count * VNIC_RES_STRIDE;
127 if (len + bar_offset > bar[bar_num].len) {
128 pr_err("vNIC BAR0 resource %d "
129 "out-of-bounds, offset 0x%x + "
130 "size 0x%x > bar len 0x%lx\n",
137 case RES_TYPE_INTR_PBA_LEGACY:
138 case RES_TYPE_DEVCMD:
145 vdev->res[type].count = count;
146 vdev->res[type].vaddr = (char __iomem *)bar[bar_num].vaddr +
148 vdev->res[type].bus_addr = bar[bar_num].bus_addr + bar_offset;
154 unsigned int vnic_dev_get_res_count(struct vnic_dev *vdev,
155 enum vnic_res_type type)
157 return vdev->res[type].count;
160 void __iomem *vnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type,
163 if (!vdev->res[type].vaddr)
170 case RES_TYPE_INTR_CTRL:
171 return (char __iomem *)vdev->res[type].vaddr +
172 index * VNIC_RES_STRIDE;
174 return (char __iomem *)vdev->res[type].vaddr;
178 dma_addr_t vnic_dev_get_res_bus_addr(struct vnic_dev *vdev,
179 enum vnic_res_type type, unsigned int index)
185 case RES_TYPE_INTR_CTRL:
186 return vdev->res[type].bus_addr +
187 index * VNIC_RES_STRIDE;
189 return vdev->res[type].bus_addr;
193 unsigned int vnic_dev_desc_ring_size(struct vnic_dev_ring *ring,
194 unsigned int desc_count, unsigned int desc_size)
196 /* The base address of the desc rings must be 512 byte aligned.
197 * Descriptor count is aligned to groups of 32 descriptors. A
198 * count of 0 means the maximum 4096 descriptors. Descriptor
199 * size is aligned to 16 bytes.
202 unsigned int count_align = 32;
203 unsigned int desc_align = 16;
205 ring->base_align = 512;
210 ring->desc_count = ALIGN(desc_count, count_align);
212 ring->desc_size = ALIGN(desc_size, desc_align);
214 ring->size = ring->desc_count * ring->desc_size;
215 ring->size_unaligned = ring->size + ring->base_align;
217 return ring->size_unaligned;
220 void vnic_dev_clear_desc_ring(struct vnic_dev_ring *ring)
222 memset(ring->descs, 0, ring->size);
225 int vnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring,
226 unsigned int desc_count, unsigned int desc_size)
228 vnic_dev_desc_ring_size(ring, desc_count, desc_size);
230 ring->descs_unaligned = pci_alloc_consistent(vdev->pdev,
231 ring->size_unaligned,
232 &ring->base_addr_unaligned);
234 if (!ring->descs_unaligned) {
235 pr_err("Failed to allocate ring (size=%d), aborting\n",
240 ring->base_addr = ALIGN(ring->base_addr_unaligned,
242 ring->descs = (u8 *)ring->descs_unaligned +
243 (ring->base_addr - ring->base_addr_unaligned);
245 vnic_dev_clear_desc_ring(ring);
247 ring->desc_avail = ring->desc_count - 1;
252 void vnic_dev_free_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring)
255 pci_free_consistent(vdev->pdev,
256 ring->size_unaligned,
257 ring->descs_unaligned,
258 ring->base_addr_unaligned);
263 static int _vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
266 struct vnic_devcmd __iomem *devcmd = vdev->devcmd;
272 status = ioread32(&devcmd->status);
273 if (status == 0xFFFFFFFF) {
274 /* PCI-e target device is gone */
277 if (status & STAT_BUSY) {
278 pr_err("Busy devcmd %d\n", _CMD_N(cmd));
282 if (_CMD_DIR(cmd) & _CMD_DIR_WRITE) {
283 for (i = 0; i < VNIC_DEVCMD_NARGS; i++)
284 writeq(vdev->args[i], &devcmd->args[i]);
288 iowrite32(cmd, &devcmd->cmd);
290 if ((_CMD_FLAGS(cmd) & _CMD_FLAGS_NOWAIT))
293 for (delay = 0; delay < wait; delay++) {
297 status = ioread32(&devcmd->status);
298 if (status == 0xFFFFFFFF) {
299 /* PCI-e target device is gone */
303 if (!(status & STAT_BUSY)) {
305 if (status & STAT_ERROR) {
306 err = (int)readq(&devcmd->args[0]);
307 if (err != ERR_ECMDUNKNOWN ||
308 cmd != CMD_CAPABILITY)
309 pr_err("Error %d devcmd %d\n",
314 if (_CMD_DIR(cmd) & _CMD_DIR_READ) {
316 for (i = 0; i < VNIC_DEVCMD_NARGS; i++)
317 vdev->args[i] = readq(&devcmd->args[i]);
324 pr_err("Timedout devcmd %d\n", _CMD_N(cmd));
328 static int vnic_dev_cmd_proxy_by_bdf(struct vnic_dev *vdev,
329 enum vnic_devcmd_cmd cmd, u64 *a0, u64 *a1, int wait)
334 memset(vdev->args, 0, sizeof(vdev->args));
336 vdev->args[0] = vdev->proxy_index; /* bdf */
341 err = _vnic_dev_cmd(vdev, CMD_PROXY_BY_BDF, wait);
345 status = (u32)vdev->args[0];
346 if (status & STAT_ERROR) {
347 err = (int)vdev->args[1];
348 if (err != ERR_ECMDUNKNOWN ||
349 cmd != CMD_CAPABILITY)
350 pr_err("Error %d proxy devcmd %d\n", err, _CMD_N(cmd));
360 static int vnic_dev_cmd_no_proxy(struct vnic_dev *vdev,
361 enum vnic_devcmd_cmd cmd, u64 *a0, u64 *a1, int wait)
368 err = _vnic_dev_cmd(vdev, cmd, wait);
376 void vnic_dev_cmd_proxy_by_bdf_start(struct vnic_dev *vdev, u16 bdf)
378 vdev->proxy = PROXY_BY_BDF;
379 vdev->proxy_index = bdf;
382 void vnic_dev_cmd_proxy_end(struct vnic_dev *vdev)
384 vdev->proxy = PROXY_NONE;
385 vdev->proxy_index = 0;
388 int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
389 u64 *a0, u64 *a1, int wait)
391 memset(vdev->args, 0, sizeof(vdev->args));
393 switch (vdev->proxy) {
395 return vnic_dev_cmd_proxy_by_bdf(vdev, cmd, a0, a1, wait);
398 return vnic_dev_cmd_no_proxy(vdev, cmd, a0, a1, wait);
402 static int vnic_dev_capable(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd)
404 u64 a0 = (u32)cmd, a1 = 0;
408 err = vnic_dev_cmd(vdev, CMD_CAPABILITY, &a0, &a1, wait);
413 int vnic_dev_fw_info(struct vnic_dev *vdev,
414 struct vnic_devcmd_fw_info **fw_info)
420 if (!vdev->fw_info) {
421 vdev->fw_info = pci_alloc_consistent(vdev->pdev,
422 sizeof(struct vnic_devcmd_fw_info),
427 a0 = vdev->fw_info_pa;
429 /* only get fw_info once and cache it */
430 err = vnic_dev_cmd(vdev, CMD_MCPU_FW_INFO, &a0, &a1, wait);
433 *fw_info = vdev->fw_info;
438 int vnic_dev_hw_version(struct vnic_dev *vdev, enum vnic_dev_hw_version *hw_ver)
440 struct vnic_devcmd_fw_info *fw_info;
443 err = vnic_dev_fw_info(vdev, &fw_info);
447 if (strncmp(fw_info->hw_version, "A1", sizeof("A1")) == 0)
448 *hw_ver = VNIC_DEV_HW_VER_A1;
449 else if (strncmp(fw_info->hw_version, "A2", sizeof("A2")) == 0)
450 *hw_ver = VNIC_DEV_HW_VER_A2;
452 *hw_ver = VNIC_DEV_HW_VER_UNKNOWN;
457 int vnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, unsigned int size,
467 err = vnic_dev_cmd(vdev, CMD_DEV_SPEC, &a0, &a1, wait);
470 case 1: *(u8 *)value = (u8)a0; break;
471 case 2: *(u16 *)value = (u16)a0; break;
472 case 4: *(u32 *)value = (u32)a0; break;
473 case 8: *(u64 *)value = a0; break;
474 default: BUG(); break;
480 int vnic_dev_stats_clear(struct vnic_dev *vdev)
484 return vnic_dev_cmd(vdev, CMD_STATS_CLEAR, &a0, &a1, wait);
487 int vnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats)
493 vdev->stats = pci_alloc_consistent(vdev->pdev,
494 sizeof(struct vnic_stats), &vdev->stats_pa);
499 *stats = vdev->stats;
501 a1 = sizeof(struct vnic_stats);
503 return vnic_dev_cmd(vdev, CMD_STATS_DUMP, &a0, &a1, wait);
506 int vnic_dev_close(struct vnic_dev *vdev)
510 return vnic_dev_cmd(vdev, CMD_CLOSE, &a0, &a1, wait);
513 int vnic_dev_enable(struct vnic_dev *vdev)
517 return vnic_dev_cmd(vdev, CMD_ENABLE, &a0, &a1, wait);
520 int vnic_dev_enable_wait(struct vnic_dev *vdev)
526 err = vnic_dev_cmd(vdev, CMD_ENABLE_WAIT, &a0, &a1, wait);
527 if (err == ERR_ECMDUNKNOWN)
528 return vnic_dev_cmd(vdev, CMD_ENABLE, &a0, &a1, wait);
533 int vnic_dev_disable(struct vnic_dev *vdev)
537 return vnic_dev_cmd(vdev, CMD_DISABLE, &a0, &a1, wait);
540 int vnic_dev_open(struct vnic_dev *vdev, int arg)
542 u64 a0 = (u32)arg, a1 = 0;
544 return vnic_dev_cmd(vdev, CMD_OPEN, &a0, &a1, wait);
547 int vnic_dev_open_done(struct vnic_dev *vdev, int *done)
555 err = vnic_dev_cmd(vdev, CMD_OPEN_STATUS, &a0, &a1, wait);
564 int vnic_dev_soft_reset(struct vnic_dev *vdev, int arg)
566 u64 a0 = (u32)arg, a1 = 0;
568 return vnic_dev_cmd(vdev, CMD_SOFT_RESET, &a0, &a1, wait);
571 int vnic_dev_soft_reset_done(struct vnic_dev *vdev, int *done)
579 err = vnic_dev_cmd(vdev, CMD_SOFT_RESET_STATUS, &a0, &a1, wait);
588 int vnic_dev_hang_reset(struct vnic_dev *vdev, int arg)
590 u64 a0 = (u32)arg, a1 = 0;
594 err = vnic_dev_cmd(vdev, CMD_HANG_RESET, &a0, &a1, wait);
595 if (err == ERR_ECMDUNKNOWN) {
596 err = vnic_dev_soft_reset(vdev, arg);
600 return vnic_dev_init(vdev, 0);
606 int vnic_dev_hang_reset_done(struct vnic_dev *vdev, int *done)
614 err = vnic_dev_cmd(vdev, CMD_HANG_RESET_STATUS, &a0, &a1, wait);
616 if (err == ERR_ECMDUNKNOWN)
617 return vnic_dev_soft_reset_done(vdev, done);
626 int vnic_dev_hang_notify(struct vnic_dev *vdev)
630 return vnic_dev_cmd(vdev, CMD_HANG_NOTIFY, &a0, &a1, wait);
633 int vnic_dev_mac_addr(struct vnic_dev *vdev, u8 *mac_addr)
639 for (i = 0; i < ETH_ALEN; i++)
642 err = vnic_dev_cmd(vdev, CMD_MAC_ADDR, &a0, &a1, wait);
646 for (i = 0; i < ETH_ALEN; i++)
647 mac_addr[i] = ((u8 *)&a0)[i];
652 int vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast,
653 int broadcast, int promisc, int allmulti)
659 a0 = (directed ? CMD_PFILTER_DIRECTED : 0) |
660 (multicast ? CMD_PFILTER_MULTICAST : 0) |
661 (broadcast ? CMD_PFILTER_BROADCAST : 0) |
662 (promisc ? CMD_PFILTER_PROMISCUOUS : 0) |
663 (allmulti ? CMD_PFILTER_ALL_MULTICAST : 0);
665 err = vnic_dev_cmd(vdev, CMD_PACKET_FILTER, &a0, &a1, wait);
667 pr_err("Can't set packet filter\n");
672 int vnic_dev_packet_filter_all(struct vnic_dev *vdev, int directed,
673 int multicast, int broadcast, int promisc, int allmulti)
679 a0 = (directed ? CMD_PFILTER_DIRECTED : 0) |
680 (multicast ? CMD_PFILTER_MULTICAST : 0) |
681 (broadcast ? CMD_PFILTER_BROADCAST : 0) |
682 (promisc ? CMD_PFILTER_PROMISCUOUS : 0) |
683 (allmulti ? CMD_PFILTER_ALL_MULTICAST : 0);
685 err = vnic_dev_cmd(vdev, CMD_PACKET_FILTER_ALL, &a0, &a1, wait);
687 pr_err("Can't set packet filter\n");
692 int vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr)
699 for (i = 0; i < ETH_ALEN; i++)
700 ((u8 *)&a0)[i] = addr[i];
702 err = vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait);
704 pr_err("Can't add addr [%pM], %d\n", addr, err);
709 int vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr)
716 for (i = 0; i < ETH_ALEN; i++)
717 ((u8 *)&a0)[i] = addr[i];
719 err = vnic_dev_cmd(vdev, CMD_ADDR_DEL, &a0, &a1, wait);
721 pr_err("Can't del addr [%pM], %d\n", addr, err);
726 int vnic_dev_set_ig_vlan_rewrite_mode(struct vnic_dev *vdev,
727 u8 ig_vlan_rewrite_mode)
729 u64 a0 = ig_vlan_rewrite_mode, a1 = 0;
733 err = vnic_dev_cmd(vdev, CMD_IG_VLAN_REWRITE_MODE, &a0, &a1, wait);
734 if (err == ERR_ECMDUNKNOWN)
740 int vnic_dev_raise_intr(struct vnic_dev *vdev, u16 intr)
742 u64 a0 = intr, a1 = 0;
746 err = vnic_dev_cmd(vdev, CMD_IAR, &a0, &a1, wait);
748 pr_err("Failed to raise INTR[%d], err %d\n", intr, err);
753 int vnic_dev_notify_setcmd(struct vnic_dev *vdev,
754 void *notify_addr, dma_addr_t notify_pa, u16 intr)
760 memset(notify_addr, 0, sizeof(struct vnic_devcmd_notify));
761 vdev->notify = notify_addr;
762 vdev->notify_pa = notify_pa;
765 a1 = ((u64)intr << 32) & 0x0000ffff00000000ULL;
766 a1 += sizeof(struct vnic_devcmd_notify);
768 r = vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait);
769 vdev->notify_sz = (r == 0) ? (u32)a1 : 0;
773 int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr)
776 dma_addr_t notify_pa;
778 if (vdev->notify || vdev->notify_pa) {
779 pr_err("notify block %p still allocated", vdev->notify);
783 notify_addr = pci_alloc_consistent(vdev->pdev,
784 sizeof(struct vnic_devcmd_notify),
789 return vnic_dev_notify_setcmd(vdev, notify_addr, notify_pa, intr);
792 int vnic_dev_notify_unsetcmd(struct vnic_dev *vdev)
798 a0 = 0; /* paddr = 0 to unset notify buffer */
799 a1 = 0x0000ffff00000000ULL; /* intr num = -1 to unreg for intr */
800 a1 += sizeof(struct vnic_devcmd_notify);
802 err = vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait);
810 int vnic_dev_notify_unset(struct vnic_dev *vdev)
813 pci_free_consistent(vdev->pdev,
814 sizeof(struct vnic_devcmd_notify),
819 return vnic_dev_notify_unsetcmd(vdev);
822 static int vnic_dev_notify_ready(struct vnic_dev *vdev)
825 unsigned int nwords = vdev->notify_sz / 4;
829 if (!vdev->notify || !vdev->notify_sz)
834 memcpy(&vdev->notify_copy, vdev->notify, vdev->notify_sz);
835 words = (u32 *)&vdev->notify_copy;
836 for (i = 1; i < nwords; i++)
838 } while (csum != words[0]);
843 int vnic_dev_init(struct vnic_dev *vdev, int arg)
845 u64 a0 = (u32)arg, a1 = 0;
849 if (vnic_dev_capable(vdev, CMD_INIT))
850 r = vnic_dev_cmd(vdev, CMD_INIT, &a0, &a1, wait);
852 vnic_dev_cmd(vdev, CMD_INIT_v1, &a0, &a1, wait);
853 if (a0 & CMD_INITF_DEFAULT_MAC) {
854 /* Emulate these for old CMD_INIT_v1 which
855 * didn't pass a0 so no CMD_INITF_*.
857 vnic_dev_cmd(vdev, CMD_MAC_ADDR, &a0, &a1, wait);
858 vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait);
864 int vnic_dev_init_done(struct vnic_dev *vdev, int *done, int *err)
872 ret = vnic_dev_cmd(vdev, CMD_INIT_STATUS, &a0, &a1, wait);
878 *err = (a0 == 0) ? (int)a1:0;
883 int vnic_dev_init_prov(struct vnic_dev *vdev, u8 *buf, u32 len)
891 prov_buf = pci_alloc_consistent(vdev->pdev, len, &prov_pa);
895 memcpy(prov_buf, buf, len);
899 ret = vnic_dev_cmd(vdev, CMD_INIT_PROV_INFO, &a0, &a1, wait);
901 pci_free_consistent(vdev->pdev, len, prov_buf, prov_pa);
906 int vnic_dev_deinit(struct vnic_dev *vdev)
911 return vnic_dev_cmd(vdev, CMD_DEINIT, &a0, &a1, wait);
914 int vnic_dev_link_status(struct vnic_dev *vdev)
916 if (!vnic_dev_notify_ready(vdev))
919 return vdev->notify_copy.link_state;
922 u32 vnic_dev_port_speed(struct vnic_dev *vdev)
924 if (!vnic_dev_notify_ready(vdev))
927 return vdev->notify_copy.port_speed;
930 u32 vnic_dev_msg_lvl(struct vnic_dev *vdev)
932 if (!vnic_dev_notify_ready(vdev))
935 return vdev->notify_copy.msglvl;
938 u32 vnic_dev_mtu(struct vnic_dev *vdev)
940 if (!vnic_dev_notify_ready(vdev))
943 return vdev->notify_copy.mtu;
946 u32 vnic_dev_link_down_cnt(struct vnic_dev *vdev)
948 if (!vnic_dev_notify_ready(vdev))
951 return vdev->notify_copy.link_down_cnt;
954 u32 vnic_dev_notify_status(struct vnic_dev *vdev)
956 if (!vnic_dev_notify_ready(vdev))
959 return vdev->notify_copy.status;
962 u32 vnic_dev_uif(struct vnic_dev *vdev)
964 if (!vnic_dev_notify_ready(vdev))
967 return vdev->notify_copy.uif;
970 void vnic_dev_set_intr_mode(struct vnic_dev *vdev,
971 enum vnic_dev_intr_mode intr_mode)
973 vdev->intr_mode = intr_mode;
976 enum vnic_dev_intr_mode vnic_dev_get_intr_mode(
977 struct vnic_dev *vdev)
979 return vdev->intr_mode;
982 void vnic_dev_unregister(struct vnic_dev *vdev)
986 pci_free_consistent(vdev->pdev,
987 sizeof(struct vnic_devcmd_notify),
991 pci_free_consistent(vdev->pdev,
992 sizeof(struct vnic_stats),
993 vdev->stats, vdev->stats_pa);
995 pci_free_consistent(vdev->pdev,
996 sizeof(struct vnic_devcmd_fw_info),
997 vdev->fw_info, vdev->fw_info_pa);
1002 struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev,
1003 void *priv, struct pci_dev *pdev, struct vnic_dev_bar *bar,
1004 unsigned int num_bars)
1007 vdev = kzalloc(sizeof(struct vnic_dev), GFP_ATOMIC);
1015 if (vnic_dev_discover_res(vdev, bar, num_bars))
1018 vdev->devcmd = vnic_dev_get_res(vdev, RES_TYPE_DEVCMD, 0);
1025 vnic_dev_unregister(vdev);