u16 next_rxq_id;
bool filter_op;
bool used;
+ u8 fw_rc;
struct hlist_node node;
};
bool enable;
};
-#ifdef CONFIG_RFS_ACCEL
static void qede_configure_arfs_fltr(struct qede_dev *edev,
struct qede_arfs_fltr_node *n,
u16 rxq_id, bool add_fltr)
kfree(fltr);
}
+static int
+qede_enqueue_fltr_and_config_searcher(struct qede_dev *edev,
+ struct qede_arfs_fltr_node *fltr,
+ u16 bucket_idx)
+{
+ fltr->mapping = dma_map_single(&edev->pdev->dev, fltr->data,
+ fltr->buf_len, DMA_TO_DEVICE);
+ if (dma_mapping_error(&edev->pdev->dev, fltr->mapping)) {
+ DP_NOTICE(edev, "Failed to map DMA memory for rule\n");
+ qede_free_arfs_filter(edev, fltr);
+ return -ENOMEM;
+ }
+
+ INIT_HLIST_NODE(&fltr->node);
+ hlist_add_head(&fltr->node,
+ QEDE_ARFS_BUCKET_HEAD(edev, bucket_idx));
+ edev->arfs->filter_count++;
+
+ if (edev->arfs->filter_count == 1 && !edev->arfs->enable) {
+ edev->ops->configure_arfs_searcher(edev->cdev, true);
+ edev->arfs->enable = true;
+ }
+
+ return 0;
+}
+
+static void
+qede_dequeue_fltr_and_config_searcher(struct qede_dev *edev,
+ struct qede_arfs_fltr_node *fltr)
+{
+ hlist_del(&fltr->node);
+ dma_unmap_single(&edev->pdev->dev, fltr->mapping,
+ fltr->buf_len, DMA_TO_DEVICE);
+
+ qede_free_arfs_filter(edev, fltr);
+ edev->arfs->filter_count--;
+
+ if (!edev->arfs->filter_count && edev->arfs->enable) {
+ edev->arfs->enable = false;
+ edev->ops->configure_arfs_searcher(edev->cdev, false);
+ }
+}
+
void qede_arfs_filter_op(void *dev, void *filter, u8 fw_rc)
{
struct qede_arfs_fltr_node *fltr = filter;
struct qede_dev *edev = dev;
+ fltr->fw_rc = fw_rc;
+
if (fw_rc) {
DP_NOTICE(edev,
"Failed arfs filter configuration fw_rc=%d, flow_id=%d, sw_id=%d, src_port=%d, dst_port=%d, rxq=%d\n",
if ((!test_bit(QEDE_FLTR_VALID, &fltr->state) &&
!fltr->used) || free_fltr) {
- hlist_del(&fltr->node);
- dma_unmap_single(&edev->pdev->dev,
- fltr->mapping,
- fltr->buf_len, DMA_TO_DEVICE);
- qede_free_arfs_filter(edev, fltr);
- edev->arfs->filter_count--;
+ qede_dequeue_fltr_and_config_searcher(edev,
+ fltr);
} else {
- if ((rps_may_expire_flow(edev->ndev,
- fltr->rxq_id,
- fltr->flow_id,
- fltr->sw_id) || del) &&
- !free_fltr)
+ bool flow_exp = false;
+#ifdef CONFIG_RFS_ACCEL
+ flow_exp = rps_may_expire_flow(edev->ndev,
+ fltr->rxq_id,
+ fltr->flow_id,
+ fltr->sw_id);
+#endif
+ if ((flow_exp || del) && !free_fltr)
qede_configure_arfs_fltr(edev, fltr,
fltr->rxq_id,
false);
edev->arfs->enable = false;
edev->ops->configure_arfs_searcher(edev->cdev, false);
}
+#ifdef CONFIG_RFS_ACCEL
} else {
set_bit(QEDE_SP_ARFS_CONFIG, &edev->sp_flags);
schedule_delayed_work(&edev->sp_task,
QEDE_SP_TASK_POLL_DELAY);
+#endif
}
spin_unlock_bh(&edev->arfs->arfs_list_lock);
spin_lock_init(&edev->arfs->arfs_list_lock);
for (i = 0; i <= QEDE_RFS_FLW_MASK; i++)
- INIT_HLIST_HEAD(&edev->arfs->arfs_hl_head[i]);
+ INIT_HLIST_HEAD(QEDE_ARFS_BUCKET_HEAD(edev, i));
- edev->ndev->rx_cpu_rmap = alloc_irq_cpu_rmap(QEDE_RSS_COUNT(edev));
- if (!edev->ndev->rx_cpu_rmap) {
+ edev->arfs->arfs_fltr_bmap = vzalloc(BITS_TO_LONGS(QEDE_RFS_MAX_FLTR) *
+ sizeof(long));
+ if (!edev->arfs->arfs_fltr_bmap) {
vfree(edev->arfs);
edev->arfs = NULL;
return -ENOMEM;
}
- edev->arfs->arfs_fltr_bmap = vzalloc(BITS_TO_LONGS(QEDE_RFS_MAX_FLTR) *
- sizeof(long));
- if (!edev->arfs->arfs_fltr_bmap) {
- free_irq_cpu_rmap(edev->ndev->rx_cpu_rmap);
- edev->ndev->rx_cpu_rmap = NULL;
+#ifdef CONFIG_RFS_ACCEL
+ edev->ndev->rx_cpu_rmap = alloc_irq_cpu_rmap(QEDE_RSS_COUNT(edev));
+ if (!edev->ndev->rx_cpu_rmap) {
+ vfree(edev->arfs->arfs_fltr_bmap);
+ edev->arfs->arfs_fltr_bmap = NULL;
vfree(edev->arfs);
edev->arfs = NULL;
return -ENOMEM;
}
-
+#endif
return 0;
}
if (!edev->arfs)
return;
+#ifdef CONFIG_RFS_ACCEL
if (edev->ndev->rx_cpu_rmap)
free_irq_cpu_rmap(edev->ndev->rx_cpu_rmap);
edev->ndev->rx_cpu_rmap = NULL;
+#endif
vfree(edev->arfs->arfs_fltr_bmap);
edev->arfs->arfs_fltr_bmap = NULL;
vfree(edev->arfs);
edev->arfs = NULL;
}
+#ifdef CONFIG_RFS_ACCEL
static bool qede_compare_ip_addr(struct qede_arfs_fltr_node *tpos,
const struct sk_buff *skb)
{
spin_lock_bh(&edev->arfs->arfs_list_lock);
- n = qede_arfs_htbl_key_search(&edev->arfs->arfs_hl_head[tbl_idx],
+ n = qede_arfs_htbl_key_search(QEDE_ARFS_BUCKET_HEAD(edev, tbl_idx),
skb, ports[0], ports[1], ip_proto);
-
if (n) {
/* Filter match */
n->next_rxq_id = rxq_index;
n->tuple.ip_proto = ip_proto;
memcpy(n->data + ETH_HLEN, skb->data, skb_headlen(skb));
- n->mapping = dma_map_single(&edev->pdev->dev, n->data,
- n->buf_len, DMA_TO_DEVICE);
- if (dma_mapping_error(&edev->pdev->dev, n->mapping)) {
- DP_NOTICE(edev, "Failed to map DMA memory for arfs\n");
- qede_free_arfs_filter(edev, n);
- rc = -ENOMEM;
+ rc = qede_enqueue_fltr_and_config_searcher(edev, n, tbl_idx);
+ if (rc)
goto ret_unlock;
- }
-
- INIT_HLIST_NODE(&n->node);
- hlist_add_head(&n->node, &edev->arfs->arfs_hl_head[tbl_idx]);
- edev->arfs->filter_count++;
-
- if (edev->arfs->filter_count == 1 && !edev->arfs->enable) {
- edev->ops->configure_arfs_searcher(edev->cdev, true);
- edev->arfs->enable = true;
- }
qede_configure_arfs_fltr(edev, n, n->rxq_id, true);
set_bit(QEDE_SP_ARFS_CONFIG, &edev->sp_flags);
schedule_delayed_work(&edev->sp_task, 0);
+
return n->sw_id;
ret_unlock:
return NULL;
}
+static bool
+qede_compare_user_flow_ips(struct qede_arfs_fltr_node *tpos,
+ struct ethtool_rx_flow_spec *fsp,
+ __be16 proto)
+{
+ if (proto == htons(ETH_P_IP)) {
+ struct ethtool_tcpip4_spec *ip;
+
+ ip = &fsp->h_u.tcp_ip4_spec;
+
+ if (tpos->tuple.src_ipv4 == ip->ip4src &&
+ tpos->tuple.dst_ipv4 == ip->ip4dst)
+ return true;
+ else
+ return false;
+ } else {
+ struct ethtool_tcpip6_spec *ip6;
+ struct in6_addr *src;
+
+ ip6 = &fsp->h_u.tcp_ip6_spec;
+ src = &tpos->tuple.src_ipv6;
+
+ if (!memcmp(src, &ip6->ip6src, sizeof(struct in6_addr)) &&
+ !memcmp(&tpos->tuple.dst_ipv6, &ip6->ip6dst,
+ sizeof(struct in6_addr)))
+ return true;
+ else
+ return false;
+ }
+ return false;
+}
+
int qede_get_cls_rule_all(struct qede_dev *edev, struct ethtool_rxnfc *info,
u32 *rule_locs)
{
return rc;
}
+static int
+qede_validate_and_check_flow_exist(struct qede_dev *edev,
+ struct ethtool_rx_flow_spec *fsp,
+ int *min_hlen)
+{
+ __be16 src_port = 0x0, dst_port = 0x0;
+ struct qede_arfs_fltr_node *fltr;
+ struct hlist_node *temp;
+ struct hlist_head *head;
+ __be16 eth_proto;
+ u8 ip_proto;
+
+ if (fsp->location >= QEDE_RFS_MAX_FLTR ||
+ fsp->ring_cookie >= QEDE_RSS_COUNT(edev))
+ return -EINVAL;
+
+ if (fsp->flow_type == TCP_V4_FLOW) {
+ *min_hlen += sizeof(struct iphdr) +
+ sizeof(struct tcphdr);
+ eth_proto = htons(ETH_P_IP);
+ ip_proto = IPPROTO_TCP;
+ } else if (fsp->flow_type == UDP_V4_FLOW) {
+ *min_hlen += sizeof(struct iphdr) +
+ sizeof(struct udphdr);
+ eth_proto = htons(ETH_P_IP);
+ ip_proto = IPPROTO_UDP;
+ } else if (fsp->flow_type == TCP_V6_FLOW) {
+ *min_hlen += sizeof(struct ipv6hdr) +
+ sizeof(struct tcphdr);
+ eth_proto = htons(ETH_P_IPV6);
+ ip_proto = IPPROTO_TCP;
+ } else if (fsp->flow_type == UDP_V6_FLOW) {
+ *min_hlen += sizeof(struct ipv6hdr) +
+ sizeof(struct udphdr);
+ eth_proto = htons(ETH_P_IPV6);
+ ip_proto = IPPROTO_UDP;
+ } else {
+ DP_NOTICE(edev, "Unsupported flow type = 0x%x\n",
+ fsp->flow_type);
+ return -EPROTONOSUPPORT;
+ }
+
+ if (eth_proto == htons(ETH_P_IP)) {
+ src_port = fsp->h_u.tcp_ip4_spec.psrc;
+ dst_port = fsp->h_u.tcp_ip4_spec.pdst;
+ } else {
+ src_port = fsp->h_u.tcp_ip6_spec.psrc;
+ dst_port = fsp->h_u.tcp_ip6_spec.pdst;
+ }
+
+ head = QEDE_ARFS_BUCKET_HEAD(edev, 0);
+ hlist_for_each_entry_safe(fltr, temp, head, node) {
+ if ((fltr->tuple.ip_proto == ip_proto &&
+ fltr->tuple.eth_proto == eth_proto &&
+ qede_compare_user_flow_ips(fltr, fsp, eth_proto) &&
+ fltr->tuple.src_port == src_port &&
+ fltr->tuple.dst_port == dst_port) ||
+ fltr->sw_id == fsp->location)
+ return -EEXIST;
+ }
+
+ return 0;
+}
+
+static int
+qede_poll_arfs_filter_config(struct qede_dev *edev,
+ struct qede_arfs_fltr_node *fltr)
+{
+ int count = QEDE_ARFS_POLL_COUNT;
+
+ while (fltr->used && count) {
+ msleep(20);
+ count--;
+ }
+
+ if (count == 0 || fltr->fw_rc) {
+ qede_dequeue_fltr_and_config_searcher(edev, fltr);
+ return -EIO;
+ }
+
+ return fltr->fw_rc;
+}
+
+int qede_add_cls_rule(struct qede_dev *edev, struct ethtool_rxnfc *info)
+{
+ struct ethtool_rx_flow_spec *fsp = &info->fs;
+ struct qede_arfs_fltr_node *n;
+ int min_hlen = ETH_HLEN, rc;
+ struct ethhdr *eth;
+ struct iphdr *ip;
+ __be16 *ports;
+
+ __qede_lock(edev);
+
+ if (!edev->arfs) {
+ rc = -EPERM;
+ goto unlock;
+ }
+
+ rc = qede_validate_and_check_flow_exist(edev, fsp, &min_hlen);
+ if (rc)
+ goto unlock;
+
+ n = kzalloc(sizeof(*n), GFP_KERNEL);
+ if (!n) {
+ rc = -ENOMEM;
+ goto unlock;
+ }
+
+ n->data = kzalloc(min_hlen, GFP_KERNEL);
+ if (!n->data) {
+ kfree(n);
+ rc = -ENOMEM;
+ goto unlock;
+ }
+
+ n->sw_id = fsp->location;
+ set_bit(n->sw_id, edev->arfs->arfs_fltr_bmap);
+ n->buf_len = min_hlen;
+ n->rxq_id = fsp->ring_cookie;
+ n->next_rxq_id = n->rxq_id;
+ eth = (struct ethhdr *)n->data;
+
+ if (info->fs.flow_type == TCP_V4_FLOW ||
+ info->fs.flow_type == UDP_V4_FLOW) {
+ ports = (__be16 *)(n->data + ETH_HLEN +
+ sizeof(struct iphdr));
+ eth->h_proto = htons(ETH_P_IP);
+ n->tuple.eth_proto = htons(ETH_P_IP);
+ n->tuple.src_ipv4 = info->fs.h_u.tcp_ip4_spec.ip4src;
+ n->tuple.dst_ipv4 = info->fs.h_u.tcp_ip4_spec.ip4dst;
+ n->tuple.src_port = info->fs.h_u.tcp_ip4_spec.psrc;
+ n->tuple.dst_port = info->fs.h_u.tcp_ip4_spec.pdst;
+ ports[0] = n->tuple.src_port;
+ ports[1] = n->tuple.dst_port;
+ ip = (struct iphdr *)(n->data + ETH_HLEN);
+ ip->saddr = info->fs.h_u.tcp_ip4_spec.ip4src;
+ ip->daddr = info->fs.h_u.tcp_ip4_spec.ip4dst;
+ ip->version = 0x4;
+ ip->ihl = 0x5;
+
+ if (info->fs.flow_type == TCP_V4_FLOW) {
+ n->tuple.ip_proto = IPPROTO_TCP;
+ ip->protocol = IPPROTO_TCP;
+ } else {
+ n->tuple.ip_proto = IPPROTO_UDP;
+ ip->protocol = IPPROTO_UDP;
+ }
+ ip->tot_len = cpu_to_be16(min_hlen - ETH_HLEN);
+ } else {
+ struct ipv6hdr *ip6;
+
+ ip6 = (struct ipv6hdr *)(n->data + ETH_HLEN);
+ ports = (__be16 *)(n->data + ETH_HLEN +
+ sizeof(struct ipv6hdr));
+ eth->h_proto = htons(ETH_P_IPV6);
+ n->tuple.eth_proto = htons(ETH_P_IPV6);
+ memcpy(&n->tuple.src_ipv6, &info->fs.h_u.tcp_ip6_spec.ip6src,
+ sizeof(struct in6_addr));
+ memcpy(&n->tuple.dst_ipv6, &info->fs.h_u.tcp_ip6_spec.ip6dst,
+ sizeof(struct in6_addr));
+ n->tuple.src_port = info->fs.h_u.tcp_ip6_spec.psrc;
+ n->tuple.dst_port = info->fs.h_u.tcp_ip6_spec.pdst;
+ ports[0] = n->tuple.src_port;
+ ports[1] = n->tuple.dst_port;
+ memcpy(&ip6->saddr, &n->tuple.src_ipv6,
+ sizeof(struct in6_addr));
+ memcpy(&ip6->daddr, &n->tuple.dst_ipv6,
+ sizeof(struct in6_addr));
+ ip6->version = 0x6;
+
+ if (info->fs.flow_type == TCP_V6_FLOW) {
+ n->tuple.ip_proto = IPPROTO_TCP;
+ ip6->nexthdr = NEXTHDR_TCP;
+ ip6->payload_len = cpu_to_be16(sizeof(struct tcphdr));
+ } else {
+ n->tuple.ip_proto = IPPROTO_UDP;
+ ip6->nexthdr = NEXTHDR_UDP;
+ ip6->payload_len = cpu_to_be16(sizeof(struct udphdr));
+ }
+ }
+
+ rc = qede_enqueue_fltr_and_config_searcher(edev, n, 0);
+ if (rc)
+ goto unlock;
+
+ qede_configure_arfs_fltr(edev, n, n->rxq_id, true);
+ rc = qede_poll_arfs_filter_config(edev, n);
+unlock:
+ __qede_unlock(edev);
+ return rc;
+}
+
+int qede_del_cls_rule(struct qede_dev *edev, struct ethtool_rxnfc *info)
+{
+ struct ethtool_rx_flow_spec *fsp = &info->fs;
+ struct qede_arfs_fltr_node *fltr = NULL;
+ int rc = -EPERM;
+
+ __qede_lock(edev);
+ if (!edev->arfs)
+ goto unlock;
+
+ fltr = qede_get_arfs_fltr_by_loc(QEDE_ARFS_BUCKET_HEAD(edev, 0),
+ fsp->location);
+ if (!fltr)
+ goto unlock;
+
+ qede_configure_arfs_fltr(edev, fltr, fltr->rxq_id, false);
+
+ rc = qede_poll_arfs_filter_config(edev, fltr);
+ if (rc == 0)
+ qede_dequeue_fltr_and_config_searcher(edev, fltr);
+
+unlock:
+ __qede_unlock(edev);
+ return rc;
+}
+
int qede_get_arfs_filter_count(struct qede_dev *edev)
{
int count = 0;
git.samba.org / sfrench / cifs-2.6.git / commitdiff