| /* |
| * Copyright 2008 Cisco Systems, Inc. All rights reserved. |
| * Copyright 2007 Nuova Systems, Inc. All rights reserved. |
| * |
| * This program is free software; you may redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| * |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/errno.h> |
| #include <linux/types.h> |
| #include <linux/pci.h> |
| #include <linux/delay.h> |
| #include <linux/if_ether.h> |
| #include <linux/slab.h> |
| |
| #include "vnic_resource.h" |
| #include "vnic_devcmd.h" |
| #include "vnic_dev.h" |
| #include "vnic_stats.h" |
| |
| struct vnic_res { |
| void __iomem *vaddr; |
| dma_addr_t bus_addr; |
| unsigned int count; |
| }; |
| |
| #define VNIC_DEV_CAP_INIT 0x0001 |
| |
| struct vnic_dev { |
| void *priv; |
| struct pci_dev *pdev; |
| struct vnic_res res[RES_TYPE_MAX]; |
| enum vnic_dev_intr_mode intr_mode; |
| struct vnic_devcmd __iomem *devcmd; |
| struct vnic_devcmd_notify *notify; |
| struct vnic_devcmd_notify notify_copy; |
| dma_addr_t notify_pa; |
| u32 notify_sz; |
| u32 *linkstatus; |
| dma_addr_t linkstatus_pa; |
| struct vnic_stats *stats; |
| dma_addr_t stats_pa; |
| struct vnic_devcmd_fw_info *fw_info; |
| dma_addr_t fw_info_pa; |
| u32 cap_flags; |
| }; |
| |
| #define VNIC_MAX_RES_HDR_SIZE \ |
| (sizeof(struct vnic_resource_header) + \ |
| sizeof(struct vnic_resource) * RES_TYPE_MAX) |
| #define VNIC_RES_STRIDE 128 |
| |
| void *vnic_dev_priv(struct vnic_dev *vdev) |
| { |
| return vdev->priv; |
| } |
| |
| static int vnic_dev_discover_res(struct vnic_dev *vdev, |
| struct vnic_dev_bar *bar, unsigned int num_bars) |
| { |
| struct vnic_resource_header __iomem *rh; |
| struct vnic_resource __iomem *r; |
| u8 type; |
| |
| if (num_bars == 0) |
| return -EINVAL; |
| |
| if (bar->len < VNIC_MAX_RES_HDR_SIZE) { |
| printk(KERN_ERR "vNIC BAR0 res hdr length error\n"); |
| return -EINVAL; |
| } |
| |
| rh = bar->vaddr; |
| if (!rh) { |
| printk(KERN_ERR "vNIC BAR0 res hdr not mem-mapped\n"); |
| return -EINVAL; |
| } |
| |
| if (ioread32(&rh->magic) != VNIC_RES_MAGIC || |
| ioread32(&rh->version) != VNIC_RES_VERSION) { |
| printk(KERN_ERR "vNIC BAR0 res magic/version error " |
| "exp (%lx/%lx) curr (%x/%x)\n", |
| VNIC_RES_MAGIC, VNIC_RES_VERSION, |
| ioread32(&rh->magic), ioread32(&rh->version)); |
| return -EINVAL; |
| } |
| |
| r = (struct vnic_resource __iomem *)(rh + 1); |
| |
| while ((type = ioread8(&r->type)) != RES_TYPE_EOL) { |
| |
| u8 bar_num = ioread8(&r->bar); |
| u32 bar_offset = ioread32(&r->bar_offset); |
| u32 count = ioread32(&r->count); |
| u32 len; |
| |
| r++; |
| |
| if (bar_num >= num_bars) |
| continue; |
| |
| if (!bar[bar_num].len || !bar[bar_num].vaddr) |
| continue; |
| |
| switch (type) { |
| case RES_TYPE_WQ: |
| case RES_TYPE_RQ: |
| case RES_TYPE_CQ: |
| case RES_TYPE_INTR_CTRL: |
| /* each count is stride bytes long */ |
| len = count * VNIC_RES_STRIDE; |
| if (len + bar_offset > bar[bar_num].len) { |
| printk(KERN_ERR "vNIC BAR0 resource %d " |
| "out-of-bounds, offset 0x%x + " |
| "size 0x%x > bar len 0x%lx\n", |
| type, bar_offset, |
| len, |
| bar[bar_num].len); |
| return -EINVAL; |
| } |
| break; |
| case RES_TYPE_INTR_PBA_LEGACY: |
| case RES_TYPE_DEVCMD: |
| len = count; |
| break; |
| default: |
| continue; |
| } |
| |
| vdev->res[type].count = count; |
| vdev->res[type].vaddr = (char __iomem *)bar[bar_num].vaddr + |
| bar_offset; |
| vdev->res[type].bus_addr = bar[bar_num].bus_addr + bar_offset; |
| } |
| |
| return 0; |
| } |
| |
| unsigned int vnic_dev_get_res_count(struct vnic_dev *vdev, |
| enum vnic_res_type type) |
| { |
| return vdev->res[type].count; |
| } |
| |
| void __iomem *vnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type, |
| unsigned int index) |
| { |
| if (!vdev->res[type].vaddr) |
| return NULL; |
| |
| switch (type) { |
| case RES_TYPE_WQ: |
| case RES_TYPE_RQ: |
| case RES_TYPE_CQ: |
| case RES_TYPE_INTR_CTRL: |
| return (char __iomem *)vdev->res[type].vaddr + |
| index * VNIC_RES_STRIDE; |
| default: |
| return (char __iomem *)vdev->res[type].vaddr; |
| } |
| } |
| |
| dma_addr_t vnic_dev_get_res_bus_addr(struct vnic_dev *vdev, |
| enum vnic_res_type type, unsigned int index) |
| { |
| switch (type) { |
| case RES_TYPE_WQ: |
| case RES_TYPE_RQ: |
| case RES_TYPE_CQ: |
| case RES_TYPE_INTR_CTRL: |
| return vdev->res[type].bus_addr + |
| index * VNIC_RES_STRIDE; |
| default: |
| return vdev->res[type].bus_addr; |
| } |
| } |
| |
| unsigned int vnic_dev_desc_ring_size(struct vnic_dev_ring *ring, |
| unsigned int desc_count, unsigned int desc_size) |
| { |
| /* The base address of the desc rings must be 512 byte aligned. |
| * Descriptor count is aligned to groups of 32 descriptors. A |
| * count of 0 means the maximum 4096 descriptors. Descriptor |
| * size is aligned to 16 bytes. |
| */ |
| |
| unsigned int count_align = 32; |
| unsigned int desc_align = 16; |
| |
| ring->base_align = 512; |
| |
| if (desc_count == 0) |
| desc_count = 4096; |
| |
| ring->desc_count = ALIGN(desc_count, count_align); |
| |
| ring->desc_size = ALIGN(desc_size, desc_align); |
| |
| ring->size = ring->desc_count * ring->desc_size; |
| ring->size_unaligned = ring->size + ring->base_align; |
| |
| return ring->size_unaligned; |
| } |
| |
| void vnic_dev_clear_desc_ring(struct vnic_dev_ring *ring) |
| { |
| memset(ring->descs, 0, ring->size); |
| } |
| |
| int vnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring, |
| unsigned int desc_count, unsigned int desc_size) |
| { |
| vnic_dev_desc_ring_size(ring, desc_count, desc_size); |
| |
| ring->descs_unaligned = pci_alloc_consistent(vdev->pdev, |
| ring->size_unaligned, |
| &ring->base_addr_unaligned); |
| |
| if (!ring->descs_unaligned) { |
| printk(KERN_ERR |
| "Failed to allocate ring (size=%d), aborting\n", |
| (int)ring->size); |
| return -ENOMEM; |
| } |
| |
| ring->base_addr = ALIGN(ring->base_addr_unaligned, |
| ring->base_align); |
| ring->descs = (u8 *)ring->descs_unaligned + |
| (ring->base_addr - ring->base_addr_unaligned); |
| |
| vnic_dev_clear_desc_ring(ring); |
| |
| ring->desc_avail = ring->desc_count - 1; |
| |
| return 0; |
| } |
| |
| void vnic_dev_free_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring) |
| { |
| if (ring->descs) { |
| pci_free_consistent(vdev->pdev, |
| ring->size_unaligned, |
| ring->descs_unaligned, |
| ring->base_addr_unaligned); |
| ring->descs = NULL; |
| } |
| } |
| |
| int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, |
| u64 *a0, u64 *a1, int wait) |
| { |
| struct vnic_devcmd __iomem *devcmd = vdev->devcmd; |
| int delay; |
| u32 status; |
| int err; |
| |
| status = ioread32(&devcmd->status); |
| if (status & STAT_BUSY) { |
| printk(KERN_ERR "Busy devcmd %d\n", _CMD_N(cmd)); |
| return -EBUSY; |
| } |
| |
| if (_CMD_DIR(cmd) & _CMD_DIR_WRITE) { |
| writeq(*a0, &devcmd->args[0]); |
| writeq(*a1, &devcmd->args[1]); |
| wmb(); |
| } |
| |
| iowrite32(cmd, &devcmd->cmd); |
| |
| if ((_CMD_FLAGS(cmd) & _CMD_FLAGS_NOWAIT)) |
| return 0; |
| |
| for (delay = 0; delay < wait; delay++) { |
| |
| udelay(100); |
| |
| status = ioread32(&devcmd->status); |
| if (!(status & STAT_BUSY)) { |
| |
| if (status & STAT_ERROR) { |
| err = (int)readq(&devcmd->args[0]); |
| if (err != ERR_ECMDUNKNOWN || |
| cmd != CMD_CAPABILITY) |
| printk(KERN_ERR "Error %d devcmd %d\n", |
| err, _CMD_N(cmd)); |
| return err; |
| } |
| |
| if (_CMD_DIR(cmd) & _CMD_DIR_READ) { |
| rmb(); |
| *a0 = readq(&devcmd->args[0]); |
| *a1 = readq(&devcmd->args[1]); |
| } |
| |
| return 0; |
| } |
| } |
| |
| printk(KERN_ERR "Timedout devcmd %d\n", _CMD_N(cmd)); |
| return -ETIMEDOUT; |
| } |
| |
| static int vnic_dev_capable(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd) |
| { |
| u64 a0 = (u32)cmd, a1 = 0; |
| int wait = 1000; |
| int err; |
| |
| err = vnic_dev_cmd(vdev, CMD_CAPABILITY, &a0, &a1, wait); |
| |
| return !(err || a0); |
| } |
| |
| int vnic_dev_fw_info(struct vnic_dev *vdev, |
| struct vnic_devcmd_fw_info **fw_info) |
| { |
| u64 a0, a1 = 0; |
| int wait = 1000; |
| int err = 0; |
| |
| if (!vdev->fw_info) { |
| vdev->fw_info = pci_alloc_consistent(vdev->pdev, |
| sizeof(struct vnic_devcmd_fw_info), |
| &vdev->fw_info_pa); |
| if (!vdev->fw_info) |
| return -ENOMEM; |
| |
| a0 = vdev->fw_info_pa; |
| |
| /* only get fw_info once and cache it */ |
| err = vnic_dev_cmd(vdev, CMD_MCPU_FW_INFO, &a0, &a1, wait); |
| } |
| |
| *fw_info = vdev->fw_info; |
| |
| return err; |
| } |
| |
| int vnic_dev_hw_version(struct vnic_dev *vdev, enum vnic_dev_hw_version *hw_ver) |
| { |
| struct vnic_devcmd_fw_info *fw_info; |
| int err; |
| |
| err = vnic_dev_fw_info(vdev, &fw_info); |
| if (err) |
| return err; |
| |
| if (strncmp(fw_info->hw_version, "A1", sizeof("A1")) == 0) |
| *hw_ver = VNIC_DEV_HW_VER_A1; |
| else if (strncmp(fw_info->hw_version, "A2", sizeof("A2")) == 0) |
| *hw_ver = VNIC_DEV_HW_VER_A2; |
| else |
| *hw_ver = VNIC_DEV_HW_VER_UNKNOWN; |
| |
| return 0; |
| } |
| |
| int vnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, unsigned int size, |
| void *value) |
| { |
| u64 a0, a1; |
| int wait = 1000; |
| int err; |
| |
| a0 = offset; |
| a1 = size; |
| |
| err = vnic_dev_cmd(vdev, CMD_DEV_SPEC, &a0, &a1, wait); |
| |
| switch (size) { |
| case 1: *(u8 *)value = (u8)a0; break; |
| case 2: *(u16 *)value = (u16)a0; break; |
| case 4: *(u32 *)value = (u32)a0; break; |
| case 8: *(u64 *)value = a0; break; |
| default: BUG(); break; |
| } |
| |
| return err; |
| } |
| |
| int vnic_dev_stats_clear(struct vnic_dev *vdev) |
| { |
| u64 a0 = 0, a1 = 0; |
| int wait = 1000; |
| return vnic_dev_cmd(vdev, CMD_STATS_CLEAR, &a0, &a1, wait); |
| } |
| |
| int vnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats) |
| { |
| u64 a0, a1; |
| int wait = 1000; |
| |
| if (!vdev->stats) { |
| vdev->stats = pci_alloc_consistent(vdev->pdev, |
| sizeof(struct vnic_stats), &vdev->stats_pa); |
| if (!vdev->stats) |
| return -ENOMEM; |
| } |
| |
| *stats = vdev->stats; |
| a0 = vdev->stats_pa; |
| a1 = sizeof(struct vnic_stats); |
| |
| return vnic_dev_cmd(vdev, CMD_STATS_DUMP, &a0, &a1, wait); |
| } |
| |
| int vnic_dev_close(struct vnic_dev *vdev) |
| { |
| u64 a0 = 0, a1 = 0; |
| int wait = 1000; |
| return vnic_dev_cmd(vdev, CMD_CLOSE, &a0, &a1, wait); |
| } |
| |
| int vnic_dev_enable(struct vnic_dev *vdev) |
| { |
| u64 a0 = 0, a1 = 0; |
| int wait = 1000; |
| return vnic_dev_cmd(vdev, CMD_ENABLE, &a0, &a1, wait); |
| } |
| |
| int vnic_dev_disable(struct vnic_dev *vdev) |
| { |
| u64 a0 = 0, a1 = 0; |
| int wait = 1000; |
| return vnic_dev_cmd(vdev, CMD_DISABLE, &a0, &a1, wait); |
| } |
| |
| int vnic_dev_open(struct vnic_dev *vdev, int arg) |
| { |
| u64 a0 = (u32)arg, a1 = 0; |
| int wait = 1000; |
| return vnic_dev_cmd(vdev, CMD_OPEN, &a0, &a1, wait); |
| } |
| |
| int vnic_dev_open_done(struct vnic_dev *vdev, int *done) |
| { |
| u64 a0 = 0, a1 = 0; |
| int wait = 1000; |
| int err; |
| |
| *done = 0; |
| |
| err = vnic_dev_cmd(vdev, CMD_OPEN_STATUS, &a0, &a1, wait); |
| if (err) |
| return err; |
| |
| *done = (a0 == 0); |
| |
| return 0; |
| } |
| |
| int vnic_dev_soft_reset(struct vnic_dev *vdev, int arg) |
| { |
| u64 a0 = (u32)arg, a1 = 0; |
| int wait = 1000; |
| return vnic_dev_cmd(vdev, CMD_SOFT_RESET, &a0, &a1, wait); |
| } |
| |
| int vnic_dev_soft_reset_done(struct vnic_dev *vdev, int *done) |
| { |
| u64 a0 = 0, a1 = 0; |
| int wait = 1000; |
| int err; |
| |
| *done = 0; |
| |
| err = vnic_dev_cmd(vdev, CMD_SOFT_RESET_STATUS, &a0, &a1, wait); |
| if (err) |
| return err; |
| |
| *done = (a0 == 0); |
| |
| return 0; |
| } |
| |
| int vnic_dev_hang_notify(struct vnic_dev *vdev) |
| { |
| u64 a0, a1; |
| int wait = 1000; |
| return vnic_dev_cmd(vdev, CMD_HANG_NOTIFY, &a0, &a1, wait); |
| } |
| |
| int vnic_dev_mac_addr(struct vnic_dev *vdev, u8 *mac_addr) |
| { |
| u64 a0, a1; |
| int wait = 1000; |
| int err, i; |
| |
| for (i = 0; i < ETH_ALEN; i++) |
| mac_addr[i] = 0; |
| |
| err = vnic_dev_cmd(vdev, CMD_MAC_ADDR, &a0, &a1, wait); |
| if (err) |
| return err; |
| |
| for (i = 0; i < ETH_ALEN; i++) |
| mac_addr[i] = ((u8 *)&a0)[i]; |
| |
| return 0; |
| } |
| |
| void vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast, |
| int broadcast, int promisc, int allmulti) |
| { |
| u64 a0, a1 = 0; |
| int wait = 1000; |
| int err; |
| |
| a0 = (directed ? CMD_PFILTER_DIRECTED : 0) | |
| (multicast ? CMD_PFILTER_MULTICAST : 0) | |
| (broadcast ? CMD_PFILTER_BROADCAST : 0) | |
| (promisc ? CMD_PFILTER_PROMISCUOUS : 0) | |
| (allmulti ? CMD_PFILTER_ALL_MULTICAST : 0); |
| |
| err = vnic_dev_cmd(vdev, CMD_PACKET_FILTER, &a0, &a1, wait); |
| if (err) |
| printk(KERN_ERR "Can't set packet filter\n"); |
| } |
| |
| void vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr) |
| { |
| u64 a0 = 0, a1 = 0; |
| int wait = 1000; |
| int err; |
| int i; |
| |
| for (i = 0; i < ETH_ALEN; i++) |
| ((u8 *)&a0)[i] = addr[i]; |
| |
| err = vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait); |
| if (err) |
| printk(KERN_ERR "Can't add addr [%pM], %d\n", addr, err); |
| } |
| |
| void vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr) |
| { |
| u64 a0 = 0, a1 = 0; |
| int wait = 1000; |
| int err; |
| int i; |
| |
| for (i = 0; i < ETH_ALEN; i++) |
| ((u8 *)&a0)[i] = addr[i]; |
| |
| err = vnic_dev_cmd(vdev, CMD_ADDR_DEL, &a0, &a1, wait); |
| if (err) |
| printk(KERN_ERR "Can't del addr [%pM], %d\n", addr, err); |
| } |
| |
| int vnic_dev_raise_intr(struct vnic_dev *vdev, u16 intr) |
| { |
| u64 a0 = intr, a1 = 0; |
| int wait = 1000; |
| int err; |
| |
| err = vnic_dev_cmd(vdev, CMD_IAR, &a0, &a1, wait); |
| if (err) |
| printk(KERN_ERR "Failed to raise INTR[%d], err %d\n", |
| intr, err); |
| |
| return err; |
| } |
| |
| int vnic_dev_notify_setcmd(struct vnic_dev *vdev, |
| void *notify_addr, dma_addr_t notify_pa, u16 intr) |
| { |
| u64 a0, a1; |
| int wait = 1000; |
| int r; |
| |
| memset(notify_addr, 0, sizeof(struct vnic_devcmd_notify)); |
| vdev->notify = notify_addr; |
| vdev->notify_pa = notify_pa; |
| |
| a0 = (u64)notify_pa; |
| a1 = ((u64)intr << 32) & 0x0000ffff00000000ULL; |
| a1 += sizeof(struct vnic_devcmd_notify); |
| |
| r = vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait); |
| vdev->notify_sz = (r == 0) ? (u32)a1 : 0; |
| return r; |
| } |
| |
| int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr) |
| { |
| void *notify_addr; |
| dma_addr_t notify_pa; |
| |
| if (vdev->notify || vdev->notify_pa) { |
| printk(KERN_ERR "notify block %p still allocated", |
| vdev->notify); |
| return -EINVAL; |
| } |
| |
| notify_addr = pci_alloc_consistent(vdev->pdev, |
| sizeof(struct vnic_devcmd_notify), |
| ¬ify_pa); |
| if (!notify_addr) |
| return -ENOMEM; |
| |
| return vnic_dev_notify_setcmd(vdev, notify_addr, notify_pa, intr); |
| } |
| |
| void vnic_dev_notify_unsetcmd(struct vnic_dev *vdev) |
| { |
| u64 a0, a1; |
| int wait = 1000; |
| |
| a0 = 0; /* paddr = 0 to unset notify buffer */ |
| a1 = 0x0000ffff00000000ULL; /* intr num = -1 to unreg for intr */ |
| a1 += sizeof(struct vnic_devcmd_notify); |
| |
| vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait); |
| vdev->notify = NULL; |
| vdev->notify_pa = 0; |
| vdev->notify_sz = 0; |
| } |
| |
| void vnic_dev_notify_unset(struct vnic_dev *vdev) |
| { |
| if (vdev->notify) { |
| pci_free_consistent(vdev->pdev, |
| sizeof(struct vnic_devcmd_notify), |
| vdev->notify, |
| vdev->notify_pa); |
| } |
| |
| vnic_dev_notify_unsetcmd(vdev); |
| } |
| |
| static int vnic_dev_notify_ready(struct vnic_dev *vdev) |
| { |
| u32 *words; |
| unsigned int nwords = vdev->notify_sz / 4; |
| unsigned int i; |
| u32 csum; |
| |
| if (!vdev->notify || !vdev->notify_sz) |
| return 0; |
| |
| do { |
| csum = 0; |
| memcpy(&vdev->notify_copy, vdev->notify, vdev->notify_sz); |
| words = (u32 *)&vdev->notify_copy; |
| for (i = 1; i < nwords; i++) |
| csum += words[i]; |
| } while (csum != words[0]); |
| |
| return 1; |
| } |
| |
| int vnic_dev_init(struct vnic_dev *vdev, int arg) |
| { |
| u64 a0 = (u32)arg, a1 = 0; |
| int wait = 1000; |
| int r = 0; |
| |
| if (vdev->cap_flags & VNIC_DEV_CAP_INIT) |
| r = vnic_dev_cmd(vdev, CMD_INIT, &a0, &a1, wait); |
| else { |
| vnic_dev_cmd(vdev, CMD_INIT_v1, &a0, &a1, wait); |
| if (a0 & CMD_INITF_DEFAULT_MAC) { |
| // Emulate these for old CMD_INIT_v1 which |
| // didn't pass a0 so no CMD_INITF_*. |
| vnic_dev_cmd(vdev, CMD_MAC_ADDR, &a0, &a1, wait); |
| vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait); |
| } |
| } |
| return r; |
| } |
| |
| int vnic_dev_link_status(struct vnic_dev *vdev) |
| { |
| if (vdev->linkstatus) |
| return *vdev->linkstatus; |
| |
| if (!vnic_dev_notify_ready(vdev)) |
| return 0; |
| |
| return vdev->notify_copy.link_state; |
| } |
| |
| u32 vnic_dev_port_speed(struct vnic_dev *vdev) |
| { |
| if (!vnic_dev_notify_ready(vdev)) |
| return 0; |
| |
| return vdev->notify_copy.port_speed; |
| } |
| |
| u32 vnic_dev_msg_lvl(struct vnic_dev *vdev) |
| { |
| if (!vnic_dev_notify_ready(vdev)) |
| return 0; |
| |
| return vdev->notify_copy.msglvl; |
| } |
| |
| u32 vnic_dev_mtu(struct vnic_dev *vdev) |
| { |
| if (!vnic_dev_notify_ready(vdev)) |
| return 0; |
| |
| return vdev->notify_copy.mtu; |
| } |
| |
| u32 vnic_dev_link_down_cnt(struct vnic_dev *vdev) |
| { |
| if (!vnic_dev_notify_ready(vdev)) |
| return 0; |
| |
| return vdev->notify_copy.link_down_cnt; |
| } |
| |
| u32 vnic_dev_notify_status(struct vnic_dev *vdev) |
| { |
| if (!vnic_dev_notify_ready(vdev)) |
| return 0; |
| |
| return vdev->notify_copy.status; |
| } |
| |
| void vnic_dev_set_intr_mode(struct vnic_dev *vdev, |
| enum vnic_dev_intr_mode intr_mode) |
| { |
| vdev->intr_mode = intr_mode; |
| } |
| |
| enum vnic_dev_intr_mode vnic_dev_get_intr_mode( |
| struct vnic_dev *vdev) |
| { |
| return vdev->intr_mode; |
| } |
| |
| void vnic_dev_unregister(struct vnic_dev *vdev) |
| { |
| if (vdev) { |
| if (vdev->notify) |
| pci_free_consistent(vdev->pdev, |
| sizeof(struct vnic_devcmd_notify), |
| vdev->notify, |
| vdev->notify_pa); |
| if (vdev->linkstatus) |
| pci_free_consistent(vdev->pdev, |
| sizeof(u32), |
| vdev->linkstatus, |
| vdev->linkstatus_pa); |
| if (vdev->stats) |
| pci_free_consistent(vdev->pdev, |
| sizeof(struct vnic_dev), |
| vdev->stats, vdev->stats_pa); |
| if (vdev->fw_info) |
| pci_free_consistent(vdev->pdev, |
| sizeof(struct vnic_devcmd_fw_info), |
| vdev->fw_info, vdev->fw_info_pa); |
| kfree(vdev); |
| } |
| } |
| |
| struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev, |
| void *priv, struct pci_dev *pdev, struct vnic_dev_bar *bar, |
| unsigned int num_bars) |
| { |
| if (!vdev) { |
| vdev = kzalloc(sizeof(struct vnic_dev), GFP_ATOMIC); |
| if (!vdev) |
| return NULL; |
| } |
| |
| vdev->priv = priv; |
| vdev->pdev = pdev; |
| |
| if (vnic_dev_discover_res(vdev, bar, num_bars)) |
| goto err_out; |
| |
| vdev->devcmd = vnic_dev_get_res(vdev, RES_TYPE_DEVCMD, 0); |
| if (!vdev->devcmd) |
| goto err_out; |
| |
| vdev->cap_flags = 0; |
| |
| if (vnic_dev_capable(vdev, CMD_INIT)) |
| vdev->cap_flags |= VNIC_DEV_CAP_INIT; |
| |
| return vdev; |
| |
| err_out: |
| vnic_dev_unregister(vdev); |
| return NULL; |
| } |
| |
| |