[dpdk-dev] [PATCH v2 02/37] net/txgbe: support ntuple filter add and delete
Jiawen Wu
jiawenwu at trustnetic.com
Wed Nov 11 07:49:01 CET 2020
Support add and delete operations on ntuple filter.
Signed-off-by: Jiawen Wu <jiawenwu at trustnetic.com>
---
drivers/net/txgbe/txgbe_ethdev.c | 310 +++++++++++++++++++++++++++++++
drivers/net/txgbe/txgbe_ethdev.h | 6 +
2 files changed, 316 insertions(+)
diff --git a/drivers/net/txgbe/txgbe_ethdev.c b/drivers/net/txgbe/txgbe_ethdev.c
index 626c333e6..3a31d4bba 100644
--- a/drivers/net/txgbe/txgbe_ethdev.c
+++ b/drivers/net/txgbe/txgbe_ethdev.c
@@ -109,6 +109,8 @@ static void txgbe_dev_interrupt_handler(void *param);
static void txgbe_dev_interrupt_delayed_handler(void *param);
static void txgbe_configure_msix(struct rte_eth_dev *dev);
+static int txgbe_filter_restore(struct rte_eth_dev *dev);
+
#define TXGBE_SET_HWSTRIP(h, q) do {\
uint32_t idx = (q) / (sizeof((h)->bitmap[0]) * NBBY); \
uint32_t bit = (q) % (sizeof((h)->bitmap[0]) * NBBY); \
@@ -1611,6 +1613,7 @@ txgbe_dev_start(struct rte_eth_dev *dev)
/* resume enabled intr since hw reset */
txgbe_enable_intr(dev);
+ txgbe_filter_restore(dev);
/*
* Update link status right before return, because it may
@@ -3509,6 +3512,293 @@ txgbe_set_queue_rate_limit(struct rte_eth_dev *dev,
return 0;
}
+static inline enum txgbe_5tuple_protocol
+convert_protocol_type(uint8_t protocol_value)
+{
+ if (protocol_value == IPPROTO_TCP)
+ return TXGBE_5TF_PROT_TCP;
+ else if (protocol_value == IPPROTO_UDP)
+ return TXGBE_5TF_PROT_UDP;
+ else if (protocol_value == IPPROTO_SCTP)
+ return TXGBE_5TF_PROT_SCTP;
+ else
+ return TXGBE_5TF_PROT_NONE;
+}
+
+/* inject a 5-tuple filter to HW */
+static inline void
+txgbe_inject_5tuple_filter(struct rte_eth_dev *dev,
+ struct txgbe_5tuple_filter *filter)
+{
+ struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
+ int i;
+ uint32_t ftqf, sdpqf;
+ uint32_t l34timir = 0;
+ uint32_t mask = TXGBE_5TFCTL0_MASK;
+
+ i = filter->index;
+ sdpqf = TXGBE_5TFPORT_DST(be_to_le16(filter->filter_info.dst_port));
+ sdpqf |= TXGBE_5TFPORT_SRC(be_to_le16(filter->filter_info.src_port));
+
+ ftqf = TXGBE_5TFCTL0_PROTO(filter->filter_info.proto);
+ ftqf |= TXGBE_5TFCTL0_PRI(filter->filter_info.priority);
+ if (filter->filter_info.src_ip_mask == 0) /* 0 means compare. */
+ mask &= ~TXGBE_5TFCTL0_MSADDR;
+ if (filter->filter_info.dst_ip_mask == 0)
+ mask &= ~TXGBE_5TFCTL0_MDADDR;
+ if (filter->filter_info.src_port_mask == 0)
+ mask &= ~TXGBE_5TFCTL0_MSPORT;
+ if (filter->filter_info.dst_port_mask == 0)
+ mask &= ~TXGBE_5TFCTL0_MDPORT;
+ if (filter->filter_info.proto_mask == 0)
+ mask &= ~TXGBE_5TFCTL0_MPROTO;
+ ftqf |= mask;
+ ftqf |= TXGBE_5TFCTL0_MPOOL;
+ ftqf |= TXGBE_5TFCTL0_ENA;
+
+ wr32(hw, TXGBE_5TFDADDR(i), be_to_le32(filter->filter_info.dst_ip));
+ wr32(hw, TXGBE_5TFSADDR(i), be_to_le32(filter->filter_info.src_ip));
+ wr32(hw, TXGBE_5TFPORT(i), sdpqf);
+ wr32(hw, TXGBE_5TFCTL0(i), ftqf);
+
+ l34timir |= TXGBE_5TFCTL1_QP(filter->queue);
+ wr32(hw, TXGBE_5TFCTL1(i), l34timir);
+}
+
+/*
+ * add a 5tuple filter
+ *
+ * @param
+ * dev: Pointer to struct rte_eth_dev.
+ * index: the index the filter allocates.
+ * filter: ponter to the filter that will be added.
+ * rx_queue: the queue id the filter assigned to.
+ *
+ * @return
+ * - On success, zero.
+ * - On failure, a negative value.
+ */
+static int
+txgbe_add_5tuple_filter(struct rte_eth_dev *dev,
+ struct txgbe_5tuple_filter *filter)
+{
+ struct txgbe_filter_info *filter_info = TXGBE_DEV_FILTER(dev);
+ int i, idx, shift;
+
+ /*
+ * look for an unused 5tuple filter index,
+ * and insert the filter to list.
+ */
+ for (i = 0; i < TXGBE_MAX_FTQF_FILTERS; i++) {
+ idx = i / (sizeof(uint32_t) * NBBY);
+ shift = i % (sizeof(uint32_t) * NBBY);
+ if (!(filter_info->fivetuple_mask[idx] & (1 << shift))) {
+ filter_info->fivetuple_mask[idx] |= 1 << shift;
+ filter->index = i;
+ TAILQ_INSERT_TAIL(&filter_info->fivetuple_list,
+ filter,
+ entries);
+ break;
+ }
+ }
+ if (i >= TXGBE_MAX_FTQF_FILTERS) {
+ PMD_DRV_LOG(ERR, "5tuple filters are full.");
+ return -ENOSYS;
+ }
+
+ txgbe_inject_5tuple_filter(dev, filter);
+
+ return 0;
+}
+
+/*
+ * remove a 5tuple filter
+ *
+ * @param
+ * dev: Pointer to struct rte_eth_dev.
+ * filter: the pointer of the filter will be removed.
+ */
+static void
+txgbe_remove_5tuple_filter(struct rte_eth_dev *dev,
+ struct txgbe_5tuple_filter *filter)
+{
+ struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
+ struct txgbe_filter_info *filter_info = TXGBE_DEV_FILTER(dev);
+ uint16_t index = filter->index;
+
+ filter_info->fivetuple_mask[index / (sizeof(uint32_t) * NBBY)] &=
+ ~(1 << (index % (sizeof(uint32_t) * NBBY)));
+ TAILQ_REMOVE(&filter_info->fivetuple_list, filter, entries);
+ rte_free(filter);
+
+ wr32(hw, TXGBE_5TFDADDR(index), 0);
+ wr32(hw, TXGBE_5TFSADDR(index), 0);
+ wr32(hw, TXGBE_5TFPORT(index), 0);
+ wr32(hw, TXGBE_5TFCTL0(index), 0);
+ wr32(hw, TXGBE_5TFCTL1(index), 0);
+}
+
+static inline struct txgbe_5tuple_filter *
+txgbe_5tuple_filter_lookup(struct txgbe_5tuple_filter_list *filter_list,
+ struct txgbe_5tuple_filter_info *key)
+{
+ struct txgbe_5tuple_filter *it;
+
+ TAILQ_FOREACH(it, filter_list, entries) {
+ if (memcmp(key, &it->filter_info,
+ sizeof(struct txgbe_5tuple_filter_info)) == 0) {
+ return it;
+ }
+ }
+ return NULL;
+}
+
+/* translate elements in struct rte_eth_ntuple_filter
+ * to struct txgbe_5tuple_filter_info
+ */
+static inline int
+ntuple_filter_to_5tuple(struct rte_eth_ntuple_filter *filter,
+ struct txgbe_5tuple_filter_info *filter_info)
+{
+ if (filter->queue >= TXGBE_MAX_RX_QUEUE_NUM ||
+ filter->priority > TXGBE_5TUPLE_MAX_PRI ||
+ filter->priority < TXGBE_5TUPLE_MIN_PRI)
+ return -EINVAL;
+
+ switch (filter->dst_ip_mask) {
+ case UINT32_MAX:
+ filter_info->dst_ip_mask = 0;
+ filter_info->dst_ip = filter->dst_ip;
+ break;
+ case 0:
+ filter_info->dst_ip_mask = 1;
+ break;
+ default:
+ PMD_DRV_LOG(ERR, "invalid dst_ip mask.");
+ return -EINVAL;
+ }
+
+ switch (filter->src_ip_mask) {
+ case UINT32_MAX:
+ filter_info->src_ip_mask = 0;
+ filter_info->src_ip = filter->src_ip;
+ break;
+ case 0:
+ filter_info->src_ip_mask = 1;
+ break;
+ default:
+ PMD_DRV_LOG(ERR, "invalid src_ip mask.");
+ return -EINVAL;
+ }
+
+ switch (filter->dst_port_mask) {
+ case UINT16_MAX:
+ filter_info->dst_port_mask = 0;
+ filter_info->dst_port = filter->dst_port;
+ break;
+ case 0:
+ filter_info->dst_port_mask = 1;
+ break;
+ default:
+ PMD_DRV_LOG(ERR, "invalid dst_port mask.");
+ return -EINVAL;
+ }
+
+ switch (filter->src_port_mask) {
+ case UINT16_MAX:
+ filter_info->src_port_mask = 0;
+ filter_info->src_port = filter->src_port;
+ break;
+ case 0:
+ filter_info->src_port_mask = 1;
+ break;
+ default:
+ PMD_DRV_LOG(ERR, "invalid src_port mask.");
+ return -EINVAL;
+ }
+
+ switch (filter->proto_mask) {
+ case UINT8_MAX:
+ filter_info->proto_mask = 0;
+ filter_info->proto =
+ convert_protocol_type(filter->proto);
+ break;
+ case 0:
+ filter_info->proto_mask = 1;
+ break;
+ default:
+ PMD_DRV_LOG(ERR, "invalid protocol mask.");
+ return -EINVAL;
+ }
+
+ filter_info->priority = (uint8_t)filter->priority;
+ return 0;
+}
+
+/*
+ * add or delete a ntuple filter
+ *
+ * @param
+ * dev: Pointer to struct rte_eth_dev.
+ * ntuple_filter: Pointer to struct rte_eth_ntuple_filter
+ * add: if true, add filter, if false, remove filter
+ *
+ * @return
+ * - On success, zero.
+ * - On failure, a negative value.
+ */
+int
+txgbe_add_del_ntuple_filter(struct rte_eth_dev *dev,
+ struct rte_eth_ntuple_filter *ntuple_filter,
+ bool add)
+{
+ struct txgbe_filter_info *filter_info = TXGBE_DEV_FILTER(dev);
+ struct txgbe_5tuple_filter_info filter_5tuple;
+ struct txgbe_5tuple_filter *filter;
+ int ret;
+
+ if (ntuple_filter->flags != RTE_5TUPLE_FLAGS) {
+ PMD_DRV_LOG(ERR, "only 5tuple is supported.");
+ return -EINVAL;
+ }
+
+ memset(&filter_5tuple, 0, sizeof(struct txgbe_5tuple_filter_info));
+ ret = ntuple_filter_to_5tuple(ntuple_filter, &filter_5tuple);
+ if (ret < 0)
+ return ret;
+
+ filter = txgbe_5tuple_filter_lookup(&filter_info->fivetuple_list,
+ &filter_5tuple);
+ if (filter != NULL && add) {
+ PMD_DRV_LOG(ERR, "filter exists.");
+ return -EEXIST;
+ }
+ if (filter == NULL && !add) {
+ PMD_DRV_LOG(ERR, "filter doesn't exist.");
+ return -ENOENT;
+ }
+
+ if (add) {
+ filter = rte_zmalloc("txgbe_5tuple_filter",
+ sizeof(struct txgbe_5tuple_filter), 0);
+ if (filter == NULL)
+ return -ENOMEM;
+ rte_memcpy(&filter->filter_info,
+ &filter_5tuple,
+ sizeof(struct txgbe_5tuple_filter_info));
+ filter->queue = ntuple_filter->queue;
+ ret = txgbe_add_5tuple_filter(dev, filter);
+ if (ret < 0) {
+ rte_free(filter);
+ return ret;
+ }
+ } else {
+ txgbe_remove_5tuple_filter(dev, filter);
+ }
+
+ return 0;
+}
+
static u8 *
txgbe_dev_addr_list_itr(__rte_unused struct txgbe_hw *hw,
u8 **mc_addr_ptr, u32 *vmdq)
@@ -4030,6 +4320,26 @@ txgbe_dev_get_dcb_info(struct rte_eth_dev *dev,
return 0;
}
+/* restore n-tuple filter */
+static inline void
+txgbe_ntuple_filter_restore(struct rte_eth_dev *dev)
+{
+ struct txgbe_filter_info *filter_info = TXGBE_DEV_FILTER(dev);
+ struct txgbe_5tuple_filter *node;
+
+ TAILQ_FOREACH(node, &filter_info->fivetuple_list, entries) {
+ txgbe_inject_5tuple_filter(dev, node);
+ }
+}
+
+static int
+txgbe_filter_restore(struct rte_eth_dev *dev)
+{
+ txgbe_ntuple_filter_restore(dev);
+
+ return 0;
+}
+
static const struct eth_dev_ops txgbe_eth_dev_ops = {
.dev_configure = txgbe_dev_configure,
.dev_infos_get = txgbe_dev_info_get,
diff --git a/drivers/net/txgbe/txgbe_ethdev.h b/drivers/net/txgbe/txgbe_ethdev.h
index 4ba42a737..b4804ee1c 100644
--- a/drivers/net/txgbe/txgbe_ethdev.h
+++ b/drivers/net/txgbe/txgbe_ethdev.h
@@ -39,6 +39,9 @@
#define TXGBE_MAX_QUEUE_NUM_PER_VF 8
+#define TXGBE_5TUPLE_MAX_PRI 7
+#define TXGBE_5TUPLE_MIN_PRI 1
+
#define TXGBE_RSS_OFFLOAD_ALL ( \
ETH_RSS_IPV4 | \
ETH_RSS_NONFRAG_IPV4_TCP | \
@@ -311,6 +314,9 @@ int txgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
bool txgbe_rss_update_sp(enum txgbe_mac_type mac_type);
+int txgbe_add_del_ntuple_filter(struct rte_eth_dev *dev,
+ struct rte_eth_ntuple_filter *filter,
+ bool add);
void txgbe_set_ivar_map(struct txgbe_hw *hw, int8_t direction,
uint8_t queue, uint8_t msix_vector);
--
2.18.4
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