+++ /dev/null
-/*
- * Copyright 2008-2014 Cisco Systems, Inc. All rights reserved.
- * Copyright 2007 Nuova Systems, Inc. All rights reserved.
- *
- * Copyright (c) 2014, Cisco Systems, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- */
-#ident "$Id$"
-
-#include <rte_memzone.h>
-#include <rte_memcpy.h>
-#include <rte_string_fns.h>
-
-#include "vnic_dev.h"
-#include "vnic_resource.h"
-#include "vnic_devcmd.h"
-#include "vnic_stats.h"
-
-
-enum vnic_proxy_type {
- PROXY_NONE,
- PROXY_BY_BDF,
- PROXY_BY_INDEX,
-};
-
-struct vnic_res {
- void __iomem *vaddr;
- dma_addr_t bus_addr;
- unsigned int count;
-};
-
-struct vnic_intr_coal_timer_info {
- u32 mul;
- u32 div;
- u32 max_usec;
-};
-
-struct vnic_dev {
- void *priv;
- struct rte_pci_device *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;
- 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;
- enum vnic_proxy_type proxy;
- u32 proxy_index;
- u64 args[VNIC_DEVCMD_NARGS];
- u16 split_hdr_size;
- int in_reset;
- struct vnic_intr_coal_timer_info intr_coal_timer_info;
- void *(*alloc_consistent)(void *priv, size_t size,
- dma_addr_t *dma_handle, u8 *name);
- void (*free_consistent)(struct rte_pci_device *hwdev,
- size_t size, void *vaddr,
- dma_addr_t dma_handle);
-};
-
-#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;
-}
-
-void vnic_register_cbacks(struct vnic_dev *vdev,
- void *(*alloc_consistent)(void *priv, size_t size,
- dma_addr_t *dma_handle, u8 *name),
- void (*free_consistent)(struct rte_pci_device *hwdev,
- size_t size, void *vaddr,
- dma_addr_t dma_handle))
-{
- vdev->alloc_consistent = alloc_consistent;
- vdev->free_consistent = free_consistent;
-}
-
-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 mgmt_barmap_hdr __iomem *mrh;
- struct vnic_resource __iomem *r;
- u8 type;
-
- if (num_bars == 0)
- return -EINVAL;
-
- if (bar->len < VNIC_MAX_RES_HDR_SIZE) {
- pr_err("vNIC BAR0 res hdr length error\n");
- return -EINVAL;
- }
-
- rh = bar->vaddr;
- mrh = bar->vaddr;
- if (!rh) {
- pr_err("vNIC BAR0 res hdr not mem-mapped\n");
- return -EINVAL;
- }
-
- /* Check for mgmt vnic in addition to normal vnic */
- if ((ioread32(&rh->magic) != VNIC_RES_MAGIC) ||
- (ioread32(&rh->version) != VNIC_RES_VERSION)) {
- if ((ioread32(&mrh->magic) != MGMTVNIC_MAGIC) ||
- (ioread32(&mrh->version) != MGMTVNIC_VERSION)) {
- pr_err("vNIC BAR0 res magic/version error " \
- "exp (%lx/%lx) or (%lx/%lx), curr (%x/%x)\n",
- VNIC_RES_MAGIC, VNIC_RES_VERSION,
- MGMTVNIC_MAGIC, MGMTVNIC_VERSION,
- ioread32(&rh->magic), ioread32(&rh->version));
- return -EINVAL;
- }
- }
-
- if (ioread32(&mrh->magic) == MGMTVNIC_MAGIC)
- r = (struct vnic_resource __iomem *)(mrh + 1);
- else
- 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) {
- pr_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;
- }
-}
-
-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 = VNIC_ALIGN(desc_count, count_align);
-
- ring->desc_size = VNIC_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_set_hdr_split_size(struct vnic_dev *vdev, u16 size)
-{
- vdev->split_hdr_size = size;
-}
-
-u16 vnic_get_hdr_split_size(struct vnic_dev *vdev)
-{
- return vdev->split_hdr_size;
-}
-
-void vnic_dev_clear_desc_ring(struct vnic_dev_ring *ring)
-{
- memset(ring->descs, 0, ring->size);
-}
-
-int vnic_dev_alloc_desc_ring(__attribute__((unused)) struct vnic_dev *vdev,
- struct vnic_dev_ring *ring,
- unsigned int desc_count, unsigned int desc_size, unsigned int socket_id,
- char *z_name)
-{
- const struct rte_memzone *rz;
-
- vnic_dev_desc_ring_size(ring, desc_count, desc_size);
-
- rz = rte_memzone_reserve_aligned(z_name,
- ring->size_unaligned, socket_id,
- 0, ENIC_ALIGN);
- if (!rz) {
- pr_err("Failed to allocate ring (size=%d), aborting\n",
- (int)ring->size);
- return -ENOMEM;
- }
-
- ring->descs_unaligned = rz->addr;
- if (!ring->descs_unaligned) {
- pr_err("Failed to map allocated ring (size=%d), aborting\n",
- (int)ring->size);
- return -ENOMEM;
- }
-
- ring->base_addr_unaligned = (dma_addr_t)rz->phys_addr;
-
- ring->base_addr = VNIC_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(__attribute__((unused)) struct vnic_dev *vdev,
- struct vnic_dev_ring *ring)
-{
- if (ring->descs)
- ring->descs = NULL;
-}
-
-static int _vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
- int wait)
-{
- struct vnic_devcmd __iomem *devcmd = vdev->devcmd;
- unsigned int i;
- int delay;
- u32 status;
- int err;
-
- status = ioread32(&devcmd->status);
- if (status == 0xFFFFFFFF) {
- /* PCI-e target device is gone */
- return -ENODEV;
- }
- if (status & STAT_BUSY) {
-
- pr_err("Busy devcmd %d\n", _CMD_N(cmd));
- return -EBUSY;
- }
-
- if (_CMD_DIR(cmd) & _CMD_DIR_WRITE) {
- for (i = 0; i < VNIC_DEVCMD_NARGS; i++)
- writeq(vdev->args[i], &devcmd->args[i]);
- wmb(); /* complete all writes initiated till now */
- }
-
- 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 == 0xFFFFFFFF) {
- /* PCI-e target device is gone */
- return -ENODEV;
- }
-
- if (!(status & STAT_BUSY)) {
- if (status & STAT_ERROR) {
- err = -(int)readq(&devcmd->args[0]);
- if (cmd != CMD_CAPABILITY)
- pr_err("Devcmd %d failed " \
- "with error code %d\n",
- _CMD_N(cmd), err);
- return err;
- }
-
- if (_CMD_DIR(cmd) & _CMD_DIR_READ) {
- rmb();/* finish all reads initiated till now */
- for (i = 0; i < VNIC_DEVCMD_NARGS; i++)
- vdev->args[i] = readq(&devcmd->args[i]);
- }
-
- return 0;
- }
- }
-
- pr_err("Timedout devcmd %d\n", _CMD_N(cmd));
- return -ETIMEDOUT;
-}
-
-static int vnic_dev_cmd_proxy(struct vnic_dev *vdev,
- enum vnic_devcmd_cmd proxy_cmd, enum vnic_devcmd_cmd cmd,
- u64 *a0, u64 *a1, int wait)
-{
- u32 status;
- int err;
-
- memset(vdev->args, 0, sizeof(vdev->args));
-
- vdev->args[0] = vdev->proxy_index;
- vdev->args[1] = cmd;
- vdev->args[2] = *a0;
- vdev->args[3] = *a1;
-
- err = _vnic_dev_cmd(vdev, proxy_cmd, wait);
- if (err)
- return err;
-
- status = (u32)vdev->args[0];
- if (status & STAT_ERROR) {
- err = (int)vdev->args[1];
- if (err != ERR_ECMDUNKNOWN ||
- cmd != CMD_CAPABILITY)
- pr_err("Error %d proxy devcmd %d\n", err, _CMD_N(cmd));
- return err;
- }
-
- *a0 = vdev->args[1];
- *a1 = vdev->args[2];
-
- return 0;
-}
-
-static int vnic_dev_cmd_no_proxy(struct vnic_dev *vdev,
- enum vnic_devcmd_cmd cmd, u64 *a0, u64 *a1, int wait)
-{
- int err;
-
- vdev->args[0] = *a0;
- vdev->args[1] = *a1;
-
- err = _vnic_dev_cmd(vdev, cmd, wait);
-
- *a0 = vdev->args[0];
- *a1 = vdev->args[1];
-
- return err;
-}
-
-void vnic_dev_cmd_proxy_by_index_start(struct vnic_dev *vdev, u16 index)
-{
- vdev->proxy = PROXY_BY_INDEX;
- vdev->proxy_index = index;
-}
-
-void vnic_dev_cmd_proxy_by_bdf_start(struct vnic_dev *vdev, u16 bdf)
-{
- vdev->proxy = PROXY_BY_BDF;
- vdev->proxy_index = bdf;
-}
-
-void vnic_dev_cmd_proxy_end(struct vnic_dev *vdev)
-{
- vdev->proxy = PROXY_NONE;
- vdev->proxy_index = 0;
-}
-
-int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
- u64 *a0, u64 *a1, int wait)
-{
- memset(vdev->args, 0, sizeof(vdev->args));
-
- switch (vdev->proxy) {
- case PROXY_BY_INDEX:
- return vnic_dev_cmd_proxy(vdev, CMD_PROXY_BY_INDEX, cmd,
- a0, a1, wait);
- case PROXY_BY_BDF:
- return vnic_dev_cmd_proxy(vdev, CMD_PROXY_BY_BDF, cmd,
- a0, a1, wait);
- case PROXY_NONE:
- default:
- return vnic_dev_cmd_no_proxy(vdev, cmd, a0, a1, wait);
- }
-}
-
-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_spec(struct vnic_dev *vdev, unsigned int offset, size_t 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;
- static u32 instance;
- char name[NAME_MAX];
-
- if (!vdev->stats) {
- snprintf((char *)name, sizeof(name),
- "vnic_stats-%d", instance++);
- vdev->stats = vdev->alloc_consistent(vdev->priv,
- sizeof(struct vnic_stats), &vdev->stats_pa, (u8 *)name);
- 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);
-}
-
-/** Deprecated. @see vnic_dev_enable_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_enable_wait(struct vnic_dev *vdev)
-{
- u64 a0 = 0, a1 = 0;
- int wait = 1000;
-
- if (vnic_dev_capable(vdev, CMD_ENABLE_WAIT))
- return vnic_dev_cmd(vdev, CMD_ENABLE_WAIT, &a0, &a1, wait);
- else
- 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_get_mac_addr(struct vnic_dev *vdev, u8 *mac_addr)
-{
- u64 a0, a1 = 0;
- int wait = 1000;
- int err, i;
-
- for (i = 0; i < ETH_ALEN; i++)
- mac_addr[i] = 0;
-
- err = vnic_dev_cmd(vdev, CMD_GET_MAC_ADDR, &a0, &a1, wait);
- if (err)
- return err;
-
- for (i = 0; i < ETH_ALEN; i++)
- mac_addr[i] = ((u8 *)&a0)[i];
-
- return 0;
-}
-
-int 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)
- pr_err("Can't set packet filter\n");
-
- return err;
-}
-
-int 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)
- pr_err("Can't add addr [%02x:%02x:%02x:%02x:%02x:%02x], %d\n",
- addr[0], addr[1], addr[2], addr[3], addr[4], addr[5],
- err);
-
- return err;
-}
-
-int 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)
- pr_err("Can't del addr [%02x:%02x:%02x:%02x:%02x:%02x], %d\n",
- addr[0], addr[1], addr[2], addr[3], addr[4], addr[5],
- err);
-
- return err;
-}
-
-int vnic_dev_set_ig_vlan_rewrite_mode(struct vnic_dev *vdev,
- u8 ig_vlan_rewrite_mode)
-{
- u64 a0 = ig_vlan_rewrite_mode, a1 = 0;
- int wait = 1000;
-
- if (vnic_dev_capable(vdev, CMD_IG_VLAN_REWRITE_MODE))
- return vnic_dev_cmd(vdev, CMD_IG_VLAN_REWRITE_MODE,
- &a0, &a1, wait);
- else
- return 0;
-}
-
-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)
- pr_err("Failed to raise INTR[%d], err %d\n", intr, err);
-
- return err;
-}
-
-void vnic_dev_set_reset_flag(struct vnic_dev *vdev, int state)
-{
- vdev->in_reset = state;
-}
-
-static inline int vnic_dev_in_reset(struct vnic_dev *vdev)
-{
- return vdev->in_reset;
-}
-
-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));
- if (!vnic_dev_in_reset(vdev)) {
- 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);
- if (!vnic_dev_in_reset(vdev))
- vdev->notify_sz = (r == 0) ? (u32)a1 : 0;
-
- return r;
-}
-
-int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr)
-{
- void *notify_addr = NULL;
- dma_addr_t notify_pa = 0;
- char name[NAME_MAX];
- static u32 instance;
-
- if (vdev->notify || vdev->notify_pa) {
- pr_warn("notify block %p still allocated.\n" \
- "Ignore if restarting port\n", vdev->notify);
- return -EINVAL;
- }
-
- if (!vnic_dev_in_reset(vdev)) {
- snprintf((char *)name, sizeof(name),
- "vnic_notify-%d", instance++);
- notify_addr = vdev->alloc_consistent(vdev->priv,
- sizeof(struct vnic_devcmd_notify),
- ¬ify_pa, (u8 *)name);
- if (!notify_addr)
- return -ENOMEM;
- }
-
- return vnic_dev_notify_setcmd(vdev, notify_addr, notify_pa, intr);
-}
-
-int vnic_dev_notify_unsetcmd(struct vnic_dev *vdev)
-{
- u64 a0, a1;
- int wait = 1000;
- int err;
-
- a0 = 0; /* paddr = 0 to unset notify buffer */
- a1 = 0x0000ffff00000000ULL; /* intr num = -1 to unreg for intr */
- a1 += sizeof(struct vnic_devcmd_notify);
-
- err = vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait);
- if (!vnic_dev_in_reset(vdev)) {
- vdev->notify = NULL;
- vdev->notify_pa = 0;
- vdev->notify_sz = 0;
- }
-
- return err;
-}
-
-int vnic_dev_notify_unset(struct vnic_dev *vdev)
-{
- if (vdev->notify && !vnic_dev_in_reset(vdev)) {
- vdev->free_consistent(vdev->pdev,
- sizeof(struct vnic_devcmd_notify),
- vdev->notify,
- vdev->notify_pa);
- }
-
- return 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;
- rte_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 (vnic_dev_capable(vdev, CMD_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_GET_MAC_ADDR, &a0, &a1, wait);
- vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait);
- }
- }
- return r;
-}
-
-int vnic_dev_deinit(struct vnic_dev *vdev)
-{
- u64 a0 = 0, a1 = 0;
- int wait = 1000;
-
- return vnic_dev_cmd(vdev, CMD_DEINIT, &a0, &a1, wait);
-}
-
-void vnic_dev_intr_coal_timer_info_default(struct vnic_dev *vdev)
-{
- /* Default: hardware intr coal timer is in units of 1.5 usecs */
- vdev->intr_coal_timer_info.mul = 2;
- vdev->intr_coal_timer_info.div = 3;
- vdev->intr_coal_timer_info.max_usec =
- vnic_dev_intr_coal_timer_hw_to_usec(vdev, 0xffff);
-}
-
-int vnic_dev_link_status(struct vnic_dev *vdev)
-{
- 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;
-}
-
-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;
-}
-
-u32 vnic_dev_intr_coal_timer_usec_to_hw(struct vnic_dev *vdev, u32 usec)
-{
- return (usec * vdev->intr_coal_timer_info.mul) /
- vdev->intr_coal_timer_info.div;
-}
-
-u32 vnic_dev_intr_coal_timer_hw_to_usec(struct vnic_dev *vdev, u32 hw_cycles)
-{
- return (hw_cycles * vdev->intr_coal_timer_info.div) /
- vdev->intr_coal_timer_info.mul;
-}
-
-u32 vnic_dev_get_intr_coal_timer_max(struct vnic_dev *vdev)
-{
- return vdev->intr_coal_timer_info.max_usec;
-}
-
-void vnic_dev_unregister(struct vnic_dev *vdev)
-{
- if (vdev) {
- if (vdev->notify)
- vdev->free_consistent(vdev->pdev,
- sizeof(struct vnic_devcmd_notify),
- vdev->notify,
- vdev->notify_pa);
- if (vdev->stats)
- vdev->free_consistent(vdev->pdev,
- sizeof(struct vnic_stats),
- vdev->stats, vdev->stats_pa);
- if (vdev->fw_info)
- vdev->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 rte_pci_device *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;
-
- return vdev;
-
-err_out:
- vnic_dev_unregister(vdev);
- return NULL;
-}
-
-struct rte_pci_device *vnic_dev_get_pdev(struct vnic_dev *vdev)
-{
- return vdev->pdev;
-}
-
-int vnic_dev_set_mac_addr(struct vnic_dev *vdev, u8 *mac_addr)
-{
- u64 a0, a1 = 0;
- int wait = 1000;
- int i;
-
- for (i = 0; i < ETH_ALEN; i++)
- ((u8 *)&a0)[i] = mac_addr[i];
-
- return vnic_dev_cmd(vdev, CMD_SET_MAC_ADDR, &a0, &a1, wait);
-}
-
-/*
- * vnic_dev_classifier: Add/Delete classifier entries
- * @vdev: vdev of the device
- * @cmd: CLSF_ADD for Add filter
- * CLSF_DEL for Delete filter
- * @entry: In case of ADD filter, the caller passes the RQ number in this
- * variable.
- * This function stores the filter_id returned by the
- * firmware in the same variable before return;
- *
- * In case of DEL filter, the caller passes the RQ number. Return
- * value is irrelevant.
- * @data: filter data
- */
-int vnic_dev_classifier(struct vnic_dev *vdev, u8 cmd, u16 *entry,
- struct filter *data)
-{
- u64 a0, a1;
- int wait = 1000;
- dma_addr_t tlv_pa;
- int ret = -EINVAL;
- struct filter_tlv *tlv, *tlv_va;
- struct filter_action *action;
- u64 tlv_size;
- static unsigned int unique_id;
- char z_name[RTE_MEMZONE_NAMESIZE];
-
- if (cmd == CLSF_ADD) {
- tlv_size = sizeof(struct filter) +
- sizeof(struct filter_action) +
- 2*sizeof(struct filter_tlv);
- snprintf((char *)z_name, sizeof(z_name),
- "vnic_clsf_%d", unique_id++);
- tlv_va = vdev->alloc_consistent(vdev->priv,
- tlv_size, &tlv_pa, (u8 *)z_name);
- if (!tlv_va)
- return -ENOMEM;
- tlv = tlv_va;
- a0 = tlv_pa;
- a1 = tlv_size;
- memset(tlv, 0, tlv_size);
- tlv->type = CLSF_TLV_FILTER;
- tlv->length = sizeof(struct filter);
- *(struct filter *)&tlv->val = *data;
-
- tlv = (struct filter_tlv *)((char *)tlv +
- sizeof(struct filter_tlv) +
- sizeof(struct filter));
-
- tlv->type = CLSF_TLV_ACTION;
- tlv->length = sizeof(struct filter_action);
- action = (struct filter_action *)&tlv->val;
- action->type = FILTER_ACTION_RQ_STEERING;
- action->u.rq_idx = *entry;
-
- ret = vnic_dev_cmd(vdev, CMD_ADD_FILTER, &a0, &a1, wait);
- *entry = (u16)a0;
- vdev->free_consistent(vdev->pdev, tlv_size, tlv_va, tlv_pa);
- } else if (cmd == CLSF_DEL) {
- a0 = *entry;
- ret = vnic_dev_cmd(vdev, CMD_DEL_FILTER, &a0, &a1, wait);
- }
-
- return ret;
-}
git.droids-corp.org / dpdk.git / blobdiff