#include <rte_flow.h>
#include <rte_malloc.h>
#include <rte_common.h>
+#include <rte_cycles.h>
#include "mlx5.h"
#include "mlx5_flow.h"
#define TCA_TUNNEL_KEY_NO_CSUM 10
#endif
+#ifndef HAVE_TCA_TUNNEL_KEY_ENC_TOS
+#define TCA_TUNNEL_KEY_ENC_TOS 12
+#endif
+
+#ifndef HAVE_TCA_TUNNEL_KEY_ENC_TTL
+#define TCA_TUNNEL_KEY_ENC_TTL 13
+#endif
+
#else /* HAVE_TC_ACT_TUNNEL_KEY */
#define TCA_ACT_TUNNEL_KEY 17
#define TCA_TUNNEL_KEY_ENC_KEY_ID 7
#define TCA_TUNNEL_KEY_ENC_DST_PORT 9
#define TCA_TUNNEL_KEY_NO_CSUM 10
+#define TCA_TUNNEL_KEY_ENC_TOS 12
+#define TCA_TUNNEL_KEY_ENC_TTL 13
struct tc_tunnel_key {
tc_gen;
#ifndef HAVE_TCA_FLOWER_KEY_TCP_FLAGS_MASK
#define TCA_FLOWER_KEY_TCP_FLAGS_MASK 72
#endif
+#ifndef HAVE_TCA_FLOWER_KEY_IP_TOS
+#define TCA_FLOWER_KEY_IP_TOS 73
+#endif
+#ifndef HAVE_TCA_FLOWER_KEY_IP_TOS_MASK
+#define TCA_FLOWER_KEY_IP_TOS_MASK 74
+#endif
+#ifndef HAVE_TCA_FLOWER_KEY_IP_TTL
+#define TCA_FLOWER_KEY_IP_TTL 75
+#endif
+#ifndef HAVE_TCA_FLOWER_KEY_IP_TTL_MASK
+#define TCA_FLOWER_KEY_IP_TTL_MASK 76
+#endif
+#ifndef HAVE_TCA_FLOWER_KEY_ENC_IP_TOS
+#define TCA_FLOWER_KEY_ENC_IP_TOS 80
+#endif
+#ifndef HAVE_TCA_FLOWER_KEY_ENC_IP_TOS_MASK
+#define TCA_FLOWER_KEY_ENC_IP_TOS_MASK 81
+#endif
+#ifndef HAVE_TCA_FLOWER_KEY_ENC_IP_TTL
+#define TCA_FLOWER_KEY_ENC_IP_TTL 82
+#endif
+#ifndef HAVE_TCA_FLOWER_KEY_ENC_IP_TTL_MASK
+#define TCA_FLOWER_KEY_ENC_IP_TTL_MASK 83
+#endif
+
#ifndef HAVE_TC_ACT_GOTO_CHAIN
#define TC_ACT_GOTO_CHAIN 0x20000000
#endif
#define TCA_ACT_MAX_PRIO 32
#endif
-/** UDP port range of VXLAN devices created by driver. */
-#define MLX5_VXLAN_PORT_MIN 30000
-#define MLX5_VXLAN_PORT_MAX 60000
+/** Parameters of VXLAN devices created by driver. */
+#define MLX5_VXLAN_DEFAULT_VNI 1
#define MLX5_VXLAN_DEVICE_PFX "vmlx_"
+/**
+ * Timeout in milliseconds to wait VXLAN UDP offloaded port
+ * registration completed within the mlx5 driver.
+ */
+#define MLX5_VXLAN_WAIT_PORT_REG_MS 250
/** Tunnel action type, used for @p type in header structure. */
enum flow_tcf_tunact_type {
#define FLOW_TCF_ENCAP_UDP_SRC (1u << 6)
#define FLOW_TCF_ENCAP_UDP_DST (1u << 7)
#define FLOW_TCF_ENCAP_VXLAN_VNI (1u << 8)
+#define FLOW_TCF_ENCAP_IP_TTL (1u << 9)
+#define FLOW_TCF_ENCAP_IP_TOS (1u << 10)
/**
* Structure for holding netlink context.
struct tcf_neigh_rule {
LIST_ENTRY(tcf_neigh_rule) next;
uint32_t refcnt;
- struct ether_addr eth;
+ struct rte_ether_addr eth;
uint16_t mask;
union {
struct {
/** VXLAN virtual netdev. */
struct tcf_vtep {
LIST_ENTRY(tcf_vtep) next;
- LIST_HEAD(, tcf_neigh_rule) neigh;
- LIST_HEAD(, tcf_local_rule) local;
uint32_t refcnt;
unsigned int ifindex; /**< Own interface index. */
- unsigned int ifouter; /**< Index of device attached to. */
uint16_t port;
- uint8_t created;
+ uint32_t created:1; /**< Actually created by PMD. */
+ uint32_t waitreg:1; /**< Wait for VXLAN UDP port registration. */
};
/** Tunnel descriptor header, common for all tunnel types. */
struct flow_tcf_tunnel_hdr hdr;
struct tcf_irule *iface;
uint32_t mask;
+ uint8_t ip_tos;
+ uint8_t ip_ttl_hop;
struct {
- struct ether_addr dst;
- struct ether_addr src;
+ struct rte_ether_addr dst;
+ struct rte_ether_addr src;
} eth;
union {
struct {
},
.ipv4.hdr = {
.next_proto_id = 0xff,
+ .time_to_live = 0xff,
+ .type_of_service = 0xff,
.src_addr = RTE_BE32(0xffffffff),
.dst_addr = RTE_BE32(0xffffffff),
},
.ipv6.hdr = {
.proto = 0xff,
+ .vtc_flow = RTE_BE32(0xfful << IPV6_HDR_FL_SHIFT),
+ .hop_limits = 0xff,
.src_addr =
"\xff\xff\xff\xff\xff\xff\xff\xff"
"\xff\xff\xff\xff\xff\xff\xff\xff",
{
int idx = p_parser->sel.nkeys;
uint32_t off = actions->type == RTE_FLOW_ACTION_TYPE_SET_MAC_SRC ?
- offsetof(struct ether_hdr, s_addr) :
- offsetof(struct ether_hdr, d_addr);
+ offsetof(struct rte_ether_hdr, s_addr) :
+ offsetof(struct rte_ether_hdr, d_addr);
const struct rte_flow_action_set_mac *conf =
(const struct rte_flow_action_set_mac *)actions->conf;
" must be specified for"
" vxlan encapsulation");
}
+ if (mask->hdr.type_of_service &&
+ mask->hdr.type_of_service != 0xff)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
+ "no support for partial mask on"
+ " \"ipv4.hdr.type_of_service\" field"
+ " for vxlan encapsulation");
+ if (mask->hdr.time_to_live &&
+ mask->hdr.time_to_live != 0xff)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
+ "no support for partial mask on"
+ " \"ipv4.hdr.time_to_live\" field"
+ " for vxlan encapsulation");
return 0;
}
{
const struct rte_flow_item_ipv6 *spec = item->spec;
const struct rte_flow_item_ipv6 *mask = item->mask;
+ uint8_t msk6;
if (!spec) {
/*
" must be specified for"
" vxlan encapsulation");
}
+ msk6 = (rte_be_to_cpu_32(mask->hdr.vtc_flow) >>
+ IPV6_HDR_TC_SHIFT) & 0xff;
+ if (msk6 && msk6 != 0xff)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
+ "no support for partial mask on"
+ " \"ipv6.hdr.vtc_flow.tos\" field"
+ " for vxlan encapsulation");
+ if (mask->hdr.hop_limits && mask->hdr.hop_limits != 0xff)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
+ "no support for partial mask on"
+ " \"ipv6.hdr.hop_limits\" field"
+ " for vxlan encapsulation");
return 0;
}
break;
break;
case RTE_FLOW_ITEM_TYPE_IPV4:
- ret = mlx5_flow_validate_item_ipv4(items, item_flags,
- error);
+ ret = mlx5_flow_validate_item_ipv4
+ (items, item_flags,
+ &flow_tcf_mask_supported.ipv4, error);
if (ret < 0)
return ret;
ret = flow_tcf_validate_vxlan_encap_ipv4(items, error);
item_flags |= MLX5_FLOW_LAYER_OUTER_L3_IPV4;
break;
case RTE_FLOW_ITEM_TYPE_IPV6:
- ret = mlx5_flow_validate_item_ipv6(items, item_flags,
- error);
+ ret = mlx5_flow_validate_item_ipv6
+ (items, item_flags,
+ &flow_tcf_mask_supported.ipv6, error);
if (ret < 0)
return ret;
ret = flow_tcf_validate_vxlan_encap_ipv6(items, error);
vlan_etype = spec.vlan->inner_type;
break;
case RTE_FLOW_ITEM_TYPE_IPV4:
- ret = mlx5_flow_validate_item_ipv4(items, item_flags,
- error);
+ ret = mlx5_flow_validate_item_ipv4
+ (items, item_flags,
+ &flow_tcf_mask_supported.ipv4, error);
if (ret < 0)
return ret;
item_flags |= (item_flags & MLX5_FLOW_LAYER_TUNNEL) ?
}
break;
case RTE_FLOW_ITEM_TYPE_IPV6:
- ret = mlx5_flow_validate_item_ipv6(items, item_flags,
- error);
+ ret = mlx5_flow_validate_item_ipv6
+ (items, item_flags,
+ &flow_tcf_mask_supported.ipv6, error);
if (ret < 0)
return ret;
item_flags |= (item_flags & MLX5_FLOW_LAYER_TUNNEL) ?
*/
if ((action_flags & MLX5_FLOW_ACTION_OF_PUSH_VLAN) &&
(action_flags & MLX5_FLOW_ACTION_PORT_ID) &&
- ((struct priv *)port_id_dev->data->dev_private)->representor)
+ ((struct mlx5_priv *)port_id_dev->data->dev_private)->representor)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION, actions,
"vlan push can only be applied"
SZ_NLATTR_TYPE_OF(uint8_t) + /* VLAN prio. */
SZ_NLATTR_TYPE_OF(uint16_t); /* VLAN ID. */
break;
- case RTE_FLOW_ITEM_TYPE_IPV4:
+ case RTE_FLOW_ITEM_TYPE_IPV4: {
+ const struct rte_flow_item_ipv4 *ipv4 = items->mask;
+
size += SZ_NLATTR_TYPE_OF(uint8_t) + /* IP proto. */
SZ_NLATTR_TYPE_OF(uint32_t) * 4;
/* dst/src IP addr and mask. */
+ if (ipv4 && ipv4->hdr.time_to_live)
+ size += SZ_NLATTR_TYPE_OF(uint8_t) * 2;
+ if (ipv4 && ipv4->hdr.type_of_service)
+ size += SZ_NLATTR_TYPE_OF(uint8_t) * 2;
break;
- case RTE_FLOW_ITEM_TYPE_IPV6:
+ }
+ case RTE_FLOW_ITEM_TYPE_IPV6: {
+ const struct rte_flow_item_ipv6 *ipv6 = items->mask;
+
size += SZ_NLATTR_TYPE_OF(uint8_t) + /* IP proto. */
SZ_NLATTR_DATA_OF(IPV6_ADDR_LEN) * 4;
/* dst/src IP addr and mask. */
+ if (ipv6 && ipv6->hdr.hop_limits)
+ size += SZ_NLATTR_TYPE_OF(uint8_t) * 2;
+ if (ipv6 && (rte_be_to_cpu_32(ipv6->hdr.vtc_flow) &
+ (0xfful << IPV6_HDR_TC_SHIFT)))
+ size += SZ_NLATTR_TYPE_OF(uint8_t) * 2;
break;
+ }
case RTE_FLOW_ITEM_TYPE_UDP:
size += SZ_NLATTR_TYPE_OF(uint8_t) + /* IP proto. */
SZ_NLATTR_TYPE_OF(uint16_t) * 4;
case RTE_FLOW_ITEM_TYPE_ETH:
/* This item does not require message buffer. */
break;
- case RTE_FLOW_ITEM_TYPE_IPV4:
+ case RTE_FLOW_ITEM_TYPE_IPV4: {
+ const struct rte_flow_item_ipv4 *ipv4 = items->mask;
+
size += SZ_NLATTR_DATA_OF(IPV4_ADDR_LEN) * 2;
+ if (ipv4 && ipv4->hdr.time_to_live)
+ size += SZ_NLATTR_TYPE_OF(uint8_t) * 2;
+ if (ipv4 && ipv4->hdr.type_of_service)
+ size += SZ_NLATTR_TYPE_OF(uint8_t) * 2;
break;
- case RTE_FLOW_ITEM_TYPE_IPV6:
+ }
+ case RTE_FLOW_ITEM_TYPE_IPV6: {
+ const struct rte_flow_item_ipv6 *ipv6 = items->mask;
+
size += SZ_NLATTR_DATA_OF(IPV6_ADDR_LEN) * 2;
+ if (ipv6 && ipv6->hdr.hop_limits)
+ size += SZ_NLATTR_TYPE_OF(uint8_t) * 2;
+ if (ipv6 && (rte_be_to_cpu_32(ipv6->hdr.vtc_flow) &
+ (0xfful << IPV6_HDR_TC_SHIFT)))
+ size += SZ_NLATTR_TYPE_OF(uint8_t) * 2;
break;
+ }
case RTE_FLOW_ITEM_TYPE_UDP: {
const struct rte_flow_item_udp *udp = items->mask;
uint64_t *action_flags)
{
int size = 0;
- uint64_t flags = 0;
+ uint64_t flags = *action_flags;
size += SZ_NLATTR_NEST; /* TCA_FLOWER_ACT. */
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
return size;
}
-/**
- * Brand rtnetlink buffer with unique handle.
- *
- * This handle should be unique for a given network interface to avoid
- * collisions.
- *
- * @param nlh
- * Pointer to Netlink message.
- * @param handle
- * Unique 32-bit handle to use.
- */
-static void
-flow_tcf_nl_brand(struct nlmsghdr *nlh, uint32_t handle)
-{
- struct tcmsg *tcm = mnl_nlmsg_get_payload(nlh);
-
- tcm->tcm_handle = handle;
- DRV_LOG(DEBUG, "Netlink msg %p is branded with handle %x",
- (void *)nlh, handle);
-}
-
/**
* Prepare a flow object for Linux TC flower. It calculates the maximum size of
* memory required, allocates the memory, initializes Netlink message headers
dev_flow->tcf.tunnel->type = FLOW_TCF_TUNACT_VXLAN_DECAP;
else if (action_flags & MLX5_FLOW_ACTION_VXLAN_ENCAP)
dev_flow->tcf.tunnel->type = FLOW_TCF_TUNACT_VXLAN_ENCAP;
- /*
- * Generate a reasonably unique handle based on the address of the
- * target buffer.
- *
- * This is straightforward on 32-bit systems where the flow pointer can
- * be used directly. Otherwise, its least significant part is taken
- * after shifting it by the previous power of two of the pointed buffer
- * size.
- */
- if (sizeof(dev_flow) <= 4)
- flow_tcf_nl_brand(nlh, (uintptr_t)dev_flow);
- else
- flow_tcf_nl_brand(nlh, (uintptr_t)dev_flow >>
- rte_log2_u32(rte_align32prevpow2(size)));
return dev_flow;
}
* VXLAN VNI in 24-bit wire format.
*
* @return
- * VXLAN VNI as a 32-bit integer value in network endian.
+ * VXLAN VNI as a 32-bit integer value in network endianness.
*/
static inline rte_be32_t
vxlan_vni_as_be32(const uint8_t vni[3])
*
* @param[in] spec
* RTE_FLOW_ITEM_TYPE_IPV4 entry specification.
+ * @param[in] mask
+ * RTE_FLOW_ITEM_TYPE_IPV4 entry mask.
* @param[out] encap
* Structure to fill the gathered IPV4 address data.
*/
static void
flow_tcf_parse_vxlan_encap_ipv4(const struct rte_flow_item_ipv4 *spec,
+ const struct rte_flow_item_ipv4 *mask,
struct flow_tcf_vxlan_encap *encap)
{
/* Item must be validated before. No redundant checks. */
encap->ipv4.src = spec->hdr.src_addr;
encap->mask |= FLOW_TCF_ENCAP_IPV4_SRC |
FLOW_TCF_ENCAP_IPV4_DST;
+ if (mask && mask->hdr.type_of_service) {
+ encap->mask |= FLOW_TCF_ENCAP_IP_TOS;
+ encap->ip_tos = spec->hdr.type_of_service;
+ }
+ if (mask && mask->hdr.time_to_live) {
+ encap->mask |= FLOW_TCF_ENCAP_IP_TTL;
+ encap->ip_ttl_hop = spec->hdr.time_to_live;
+ }
}
/**
*
* @param[in] spec
* RTE_FLOW_ITEM_TYPE_IPV6 entry specification.
+ * @param[in] mask
+ * RTE_FLOW_ITEM_TYPE_IPV6 entry mask.
* @param[out] encap
* Structure to fill the gathered IPV6 address data.
*/
static void
flow_tcf_parse_vxlan_encap_ipv6(const struct rte_flow_item_ipv6 *spec,
+ const struct rte_flow_item_ipv6 *mask,
struct flow_tcf_vxlan_encap *encap)
{
/* Item must be validated before. No redundant checks. */
memcpy(encap->ipv6.src, spec->hdr.src_addr, IPV6_ADDR_LEN);
encap->mask |= FLOW_TCF_ENCAP_IPV6_SRC |
FLOW_TCF_ENCAP_IPV6_DST;
+ if (mask) {
+ if ((rte_be_to_cpu_32(mask->hdr.vtc_flow) >>
+ IPV6_HDR_TC_SHIFT) & 0xff) {
+ encap->mask |= FLOW_TCF_ENCAP_IP_TOS;
+ encap->ip_tos = (rte_be_to_cpu_32
+ (spec->hdr.vtc_flow) >>
+ IPV6_HDR_TC_SHIFT) & 0xff;
+ }
+ if (mask->hdr.hop_limits) {
+ encap->mask |= FLOW_TCF_ENCAP_IP_TTL;
+ encap->ip_ttl_hop = spec->hdr.hop_limits;
+ }
+ }
}
/**
break;
case RTE_FLOW_ITEM_TYPE_IPV4:
spec.ipv4 = items->spec;
- flow_tcf_parse_vxlan_encap_ipv4(spec.ipv4, encap);
+ mask.ipv4 = items->mask;
+ flow_tcf_parse_vxlan_encap_ipv4(spec.ipv4, mask.ipv4,
+ encap);
break;
case RTE_FLOW_ITEM_TYPE_IPV6:
spec.ipv6 = items->spec;
- flow_tcf_parse_vxlan_encap_ipv6(spec.ipv6, encap);
+ mask.ipv6 = items->mask;
+ flow_tcf_parse_vxlan_encap_ipv6(spec.ipv6, mask.ipv6,
+ encap);
break;
case RTE_FLOW_ITEM_TYPE_UDP:
mask.udp = items->mask;
TCA_FLOWER_KEY_IPV4_DST_MASK,
mask.ipv4->hdr.dst_addr);
}
+ if (mask.ipv4->hdr.time_to_live) {
+ mnl_attr_put_u8
+ (nlh, tunnel_outer ?
+ TCA_FLOWER_KEY_ENC_IP_TTL :
+ TCA_FLOWER_KEY_IP_TTL,
+ spec.ipv4->hdr.time_to_live);
+ mnl_attr_put_u8
+ (nlh, tunnel_outer ?
+ TCA_FLOWER_KEY_ENC_IP_TTL_MASK :
+ TCA_FLOWER_KEY_IP_TTL_MASK,
+ mask.ipv4->hdr.time_to_live);
+ }
+ if (mask.ipv4->hdr.type_of_service) {
+ mnl_attr_put_u8
+ (nlh, tunnel_outer ?
+ TCA_FLOWER_KEY_ENC_IP_TOS :
+ TCA_FLOWER_KEY_IP_TOS,
+ spec.ipv4->hdr.type_of_service);
+ mnl_attr_put_u8
+ (nlh, tunnel_outer ?
+ TCA_FLOWER_KEY_ENC_IP_TOS_MASK :
+ TCA_FLOWER_KEY_IP_TOS_MASK,
+ mask.ipv4->hdr.type_of_service);
+ }
assert(dev_flow->tcf.nlsize >= nlh->nlmsg_len);
break;
case RTE_FLOW_ITEM_TYPE_IPV6: {
bool ipv6_src, ipv6_dst;
+ uint8_t msk6, tos6;
item_flags |= (item_flags & MLX5_FLOW_LAYER_TUNNEL) ?
MLX5_FLOW_LAYER_INNER_L3_IPV6 :
IPV6_ADDR_LEN,
mask.ipv6->hdr.dst_addr);
}
+ if (mask.ipv6->hdr.hop_limits) {
+ mnl_attr_put_u8
+ (nlh, tunnel_outer ?
+ TCA_FLOWER_KEY_ENC_IP_TTL :
+ TCA_FLOWER_KEY_IP_TTL,
+ spec.ipv6->hdr.hop_limits);
+ mnl_attr_put_u8
+ (nlh, tunnel_outer ?
+ TCA_FLOWER_KEY_ENC_IP_TTL_MASK :
+ TCA_FLOWER_KEY_IP_TTL_MASK,
+ mask.ipv6->hdr.hop_limits);
+ }
+ msk6 = (rte_be_to_cpu_32(mask.ipv6->hdr.vtc_flow) >>
+ IPV6_HDR_TC_SHIFT) & 0xff;
+ if (msk6) {
+ tos6 = (rte_be_to_cpu_32
+ (spec.ipv6->hdr.vtc_flow) >>
+ IPV6_HDR_TC_SHIFT) & 0xff;
+ mnl_attr_put_u8
+ (nlh, tunnel_outer ?
+ TCA_FLOWER_KEY_ENC_IP_TOS :
+ TCA_FLOWER_KEY_IP_TOS, tos6);
+ mnl_attr_put_u8
+ (nlh, tunnel_outer ?
+ TCA_FLOWER_KEY_ENC_IP_TOS_MASK :
+ TCA_FLOWER_KEY_IP_TOS_MASK, msk6);
+ }
assert(dev_flow->tcf.nlsize >= nlh->nlmsg_len);
break;
}
mnl_attr_get_payload
(mnl_nlmsg_get_payload_tail
(nlh)))->ifindex;
+ } else if (decap.hdr) {
+ assert(dev_flow->tcf.tunnel);
+ dev_flow->tcf.tunnel->ifindex_ptr =
+ (unsigned int *)&tcm->tcm_ifindex;
}
mnl_attr_put(nlh, TCA_MIRRED_PARMS,
sizeof(struct tc_mirred),
TCA_TUNNEL_KEY_ENC_IPV6_DST,
sizeof(encap.vxlan->ipv6.dst),
&encap.vxlan->ipv6.dst);
+ if (encap.vxlan->mask & FLOW_TCF_ENCAP_IP_TTL)
+ mnl_attr_put_u8(nlh,
+ TCA_TUNNEL_KEY_ENC_TTL,
+ encap.vxlan->ip_ttl_hop);
+ if (encap.vxlan->mask & FLOW_TCF_ENCAP_IP_TOS)
+ mnl_attr_put_u8(nlh,
+ TCA_TUNNEL_KEY_ENC_TOS,
+ encap.vxlan->ip_tos);
if (encap.vxlan->mask & FLOW_TCF_ENCAP_VXLAN_VNI)
mnl_attr_put_u32(nlh,
TCA_TUNNEL_KEY_ENC_KEY_ID,
nlh->nlmsg_flags |= NLM_F_ACK;
ret = mnl_socket_sendto(tcf->nl, nlh, nlh->nlmsg_len);
if (ret <= 0) {
- /* Message send error occurres. */
+ /* Message send error occurred. */
rte_errno = errno;
return -rte_errno;
}
* @param[in] tcf
* Context object initialized by mlx5_flow_tcf_context_create().
* @param[in] ifindex
- * Network inferface index to perform cleanup.
+ * Network interface index to perform cleanup.
*/
static void
flow_tcf_encap_local_cleanup(struct mlx5_flow_tcf_context *tcf,
}
/**
- * Collect neigh permament rules on specified network device.
+ * Collect neigh permanent rules on specified network device.
* This is callback routine called by libmnl mnl_cb_run() in loop for
* every message in received packet.
*
}
if (!na_mac || !na_ip)
return 1;
- /* Neigh rule with permenent attribute found. */
+ /* Neigh rule with permanent attribute found. */
size = MNL_ALIGN(sizeof(struct nlmsghdr)) +
MNL_ALIGN(sizeof(struct ndmsg)) +
SZ_NLATTR_DATA_OF(ETHER_ADDR_LEN) +
* @param[in] tcf
* Context object initialized by mlx5_flow_tcf_context_create().
* @param[in] ifindex
- * Network inferface index to perform cleanup.
+ * Network interface index to perform cleanup.
*/
static void
flow_tcf_encap_neigh_cleanup(struct mlx5_flow_tcf_context *tcf,
* Note that an implicit route is maintained by the kernel due to the
* presence of a peer address (IFA_ADDRESS).
*
- * These rules are used for encapsultion only and allow to assign
+ * These rules are used for encapsulation only and allow to assign
* the outer tunnel source IP address.
*
* @param[in] tcf
/**
* Releases VXLAN encap rules container by pointer. Decrements the
- * reference cointer and deletes the container if counter is zero.
+ * reference counter and deletes the container if counter is zero.
*
* @param[in] irule
* VXLAN rule container pointer to release.
* @param[in] tcf
* Context object initialized by mlx5_flow_tcf_context_create().
* @param[in] vtep
- * Object represinting the network device to delete. Memory
+ * Object representing the network device to delete. Memory
* allocated for this object is freed by routine.
*/
static void
*
* @param[in] tcf
* Context object initialized by mlx5_flow_tcf_context_create().
- * @param[in] ifouter
- * Outer interface to attach new-created VXLAN device
- * If zero the VXLAN device will not be attached to any device.
- * These VTEPs are used for decapsulation and can be precreated
- * and shared between processes.
* @param[in] port
* UDP port of created VTEP device.
* @param[out] error
* Pointer to created device structure on success,
* NULL otherwise and rte_errno is set.
*/
-#ifdef HAVE_IFLA_VXLAN_COLLECT_METADATA
static struct tcf_vtep*
flow_tcf_vtep_create(struct mlx5_flow_tcf_context *tcf,
- unsigned int ifouter,
uint16_t port, struct rte_flow_error *error)
{
struct tcf_vtep *vtep;
}
*vtep = (struct tcf_vtep){
.port = port,
- .local = LIST_HEAD_INITIALIZER(),
- .neigh = LIST_HEAD_INITIALIZER(),
};
memset(buf, 0, sizeof(buf));
nlh = mnl_nlmsg_put_header(buf);
assert(na_info);
mnl_attr_put_strz(nlh, IFLA_INFO_KIND, "vxlan");
na_vxlan = mnl_attr_nest_start(nlh, IFLA_INFO_DATA);
- if (ifouter)
- mnl_attr_put_u32(nlh, IFLA_VXLAN_LINK, ifouter);
assert(na_vxlan);
+#ifdef HAVE_IFLA_VXLAN_COLLECT_METADATA
+ /*
+ * RH 7.2 does not support metadata for tunnel device.
+ * It does not matter because we are going to use the
+ * hardware offload by mlx5 driver.
+ */
mnl_attr_put_u8(nlh, IFLA_VXLAN_COLLECT_METADATA, 1);
+#endif
mnl_attr_put_u8(nlh, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, 1);
mnl_attr_put_u8(nlh, IFLA_VXLAN_LEARNING, 0);
mnl_attr_put_u16(nlh, IFLA_VXLAN_PORT, vxlan_port);
+#ifndef HAVE_IFLA_VXLAN_COLLECT_METADATA
+ /*
+ * We must specify VNI explicitly if metadata not supported.
+ * Note, VNI is transferred with native endianness format.
+ */
+ mnl_attr_put_u16(nlh, IFLA_VXLAN_ID, MLX5_VXLAN_DEFAULT_VNI);
+#endif
mnl_attr_nest_end(nlh, na_vxlan);
mnl_attr_nest_end(nlh, na_info);
assert(sizeof(buf) >= nlh->nlmsg_len);
DRV_LOG(WARNING,
"netlink: VTEP %s create failure (%d)",
name, rte_errno);
- if (rte_errno != EEXIST || ifouter)
+ if (rte_errno != EEXIST)
/*
* Some unhandled error occurred or device is
* for encapsulation and cannot be shared.
* when we do not need it anymore.
*/
vtep->created = 1;
+ vtep->waitreg = 1;
}
/* Try to get ifindex of created of pre-existing device. */
ret = if_nametoindex(name);
goto error;
}
vtep->ifindex = ret;
- vtep->ifouter = ifouter;
memset(buf, 0, sizeof(buf));
nlh = mnl_nlmsg_put_header(buf);
nlh->nlmsg_type = RTM_NEWLINK;
rte_free(vtep);
return NULL;
}
-#else
-static struct tcf_vtep*
-flow_tcf_vtep_create(struct mlx5_flow_tcf_context *tcf __rte_unused,
- unsigned int ifouter __rte_unused,
- uint16_t port __rte_unused,
- struct rte_flow_error *error)
-{
- rte_flow_error_set(error, ENOTSUP,
- RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
- "netlink: failed to create VTEP, "
- "vxlan metadata are not supported by kernel");
- return NULL;
-}
-#endif /* HAVE_IFLA_VXLAN_COLLECT_METADATA */
/**
* Acquire target interface index for VXLAN tunneling decapsulation.
if (vtep->port == port)
break;
}
- if (vtep && vtep->ifouter) {
- rte_flow_error_set(error, -errno,
- RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
- "Failed to create decap VTEP with specified"
- " UDP port, atatched device exists");
- return NULL;
- }
if (vtep) {
/* Device exists, just increment the reference counter. */
vtep->refcnt++;
return vtep;
}
/* No decapsulation device exists, try to create the new one. */
- vtep = flow_tcf_vtep_create(tcf, 0, port, error);
+ vtep = flow_tcf_vtep_create(tcf, port, error);
if (vtep)
LIST_INSERT_HEAD(&vtep_list_vxlan, vtep, next);
return vtep;
}
/**
- * Aqcuire target interface index for VXLAN tunneling encapsulation.
+ * Acquire target interface index for VXLAN tunneling encapsulation.
*
* @param[in] tcf
* Context object initialized by mlx5_flow_tcf_context_create().
static struct tcf_vtep*
flow_tcf_encap_vtep_acquire(struct mlx5_flow_tcf_context *tcf,
unsigned int ifouter,
- struct mlx5_flow *dev_flow __rte_unused,
+ struct mlx5_flow *dev_flow,
struct rte_flow_error *error)
{
- static uint16_t encap_port = MLX5_VXLAN_PORT_MIN - 1;
+ static uint16_t port;
struct tcf_vtep *vtep;
struct tcf_irule *iface;
int ret;
assert(ifouter);
- /* Look whether the attached VTEP for encap is created. */
+ /* Look whether the VTEP for specified port is created. */
+ port = rte_be_to_cpu_16(dev_flow->tcf.vxlan_encap->udp.dst);
LIST_FOREACH(vtep, &vtep_list_vxlan, next) {
- if (vtep->ifouter == ifouter)
+ if (vtep->port == port)
break;
}
if (vtep) {
/* VTEP already exists, just increment the reference. */
vtep->refcnt++;
} else {
- uint16_t pcnt;
-
- /* Not found, we should create the new attached VTEP. */
- flow_tcf_encap_iface_cleanup(tcf, ifouter);
- flow_tcf_encap_local_cleanup(tcf, ifouter);
- flow_tcf_encap_neigh_cleanup(tcf, ifouter);
- for (pcnt = 0; pcnt <= (MLX5_VXLAN_PORT_MAX
- - MLX5_VXLAN_PORT_MIN); pcnt++) {
- encap_port++;
- /* Wraparound the UDP port index. */
- if (encap_port < MLX5_VXLAN_PORT_MIN ||
- encap_port > MLX5_VXLAN_PORT_MAX)
- encap_port = MLX5_VXLAN_PORT_MIN;
- /* Check whether UDP port is in already in use. */
- LIST_FOREACH(vtep, &vtep_list_vxlan, next) {
- if (vtep->port == encap_port)
- break;
- }
- if (vtep) {
- /* Port is in use, try the next one. */
- vtep = NULL;
- continue;
- }
- vtep = flow_tcf_vtep_create(tcf, ifouter,
- encap_port, error);
- if (vtep) {
- LIST_INSERT_HEAD(&vtep_list_vxlan, vtep, next);
- break;
- }
- if (rte_errno != EEXIST)
- break;
- }
+ /* Not found, we should create the new VTEP. */
+ vtep = flow_tcf_vtep_create(tcf, port, error);
if (!vtep)
return NULL;
+ LIST_INSERT_HEAD(&vtep_list_vxlan, vtep, next);
}
- assert(vtep->ifouter == ifouter);
assert(vtep->ifindex);
iface = flow_tcf_encap_irule_acquire(tcf, ifouter, error);
if (!iface) {
* @param[in] tcf
* Context object initialized by mlx5_flow_tcf_context_create().
* @param[in] ifouter
- * Network interface index to attach VXLAN encap device to.
+ * Network interface index to create VXLAN encap rules on.
* @param[in] dev_flow
* Flow tcf object with tunnel structure pointer set.
* @param[out] error
static void
flow_tcf_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
{
- struct priv *priv = dev->data->dev_private;
+ struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_tcf_context *ctx = priv->tcf_context;
struct mlx5_flow *dev_flow;
struct nlmsghdr *nlh;
+ struct tcmsg *tcm;
if (!flow)
return;
dev_flow);
dev_flow->tcf.tunnel->vtep = NULL;
}
+ /* Cleanup the rule handle value. */
+ tcm = mnl_nlmsg_get_payload(nlh);
+ tcm->tcm_handle = 0;
dev_flow->tcf.applied = 0;
}
}
+/**
+ * Fetch the applied rule handle. This is callback routine called by
+ * libmnl mnl_cb_run() in loop for every message in received packet.
+ * When the NLM_F_ECHO flag is specified the kernel sends the created
+ * rule descriptor back to the application and we can retrieve the
+ * actual rule handle from updated descriptor.
+ *
+ * @param[in] nlh
+ * Pointer to reply header.
+ * @param[in, out] arg
+ * Context pointer for this callback.
+ *
+ * @return
+ * A positive, nonzero value on success (required by libmnl
+ * to continue messages processing).
+ */
+static int
+flow_tcf_collect_apply_cb(const struct nlmsghdr *nlh, void *arg)
+{
+ struct nlmsghdr *nlhrq = arg;
+ struct tcmsg *tcmrq = mnl_nlmsg_get_payload(nlhrq);
+ struct tcmsg *tcm = mnl_nlmsg_get_payload(nlh);
+ struct nlattr *na;
+
+ if (nlh->nlmsg_type != RTM_NEWTFILTER ||
+ nlh->nlmsg_seq != nlhrq->nlmsg_seq)
+ return 1;
+ mnl_attr_for_each(na, nlh, sizeof(*tcm)) {
+ switch (mnl_attr_get_type(na)) {
+ case TCA_KIND:
+ if (strcmp(mnl_attr_get_payload(na), "flower")) {
+ /* Not flower filter, drop entire message. */
+ return 1;
+ }
+ tcmrq->tcm_handle = tcm->tcm_handle;
+ return 1;
+ }
+ }
+ return 1;
+}
/**
* Apply flow to E-Switch by sending Netlink message.
*
flow_tcf_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
struct rte_flow_error *error)
{
- struct priv *priv = dev->data->dev_private;
+ struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_tcf_context *ctx = priv->tcf_context;
struct mlx5_flow *dev_flow;
struct nlmsghdr *nlh;
+ struct tcmsg *tcm;
+ uint64_t start = 0;
+ uint64_t twait = 0;
+ int ret;
dev_flow = LIST_FIRST(&flow->dev_flows);
/* E-Switch flow can't be expanded. */
return 0;
nlh = dev_flow->tcf.nlh;
nlh->nlmsg_type = RTM_NEWTFILTER;
- nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;
+ nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE |
+ NLM_F_EXCL | NLM_F_ECHO;
+ tcm = mnl_nlmsg_get_payload(nlh);
+ /* Allow kernel to assign handle on its own. */
+ tcm->tcm_handle = 0;
if (dev_flow->tcf.tunnel) {
/*
* Replace the interface index, target for
dev_flow->tcf.tunnel->ifindex_org);
*dev_flow->tcf.tunnel->ifindex_ptr =
dev_flow->tcf.tunnel->vtep->ifindex;
+ if (dev_flow->tcf.tunnel->vtep->waitreg) {
+ /* Clear wait flag for VXLAN port registration. */
+ dev_flow->tcf.tunnel->vtep->waitreg = 0;
+ twait = rte_get_timer_hz();
+ assert(twait > MS_PER_S);
+ twait = twait * MLX5_VXLAN_WAIT_PORT_REG_MS;
+ twait = twait / MS_PER_S;
+ start = rte_get_timer_cycles();
+ }
}
- if (!flow_tcf_nl_ack(ctx, nlh, NULL, NULL)) {
+ /*
+ * Kernel creates the VXLAN devices and registers UDP ports to
+ * be hardware offloaded within the NIC kernel drivers. The
+ * registration process is being performed into context of
+ * working kernel thread and the race conditions might happen.
+ * The VXLAN device is created and success is returned to
+ * calling application, but the UDP port registration process
+ * is not completed yet. The next applied rule may be rejected
+ * by the driver with ENOSUP code. We are going to wait a bit,
+ * allowing registration process to be completed. The waiting
+ * is performed once after device been created.
+ */
+ do {
+ struct timespec onems;
+
+ ret = flow_tcf_nl_ack(ctx, nlh,
+ flow_tcf_collect_apply_cb, nlh);
+ if (!ret || ret != -ENOTSUP || !twait)
+ break;
+ /* Wait one millisecond and try again till timeout. */
+ onems.tv_sec = 0;
+ onems.tv_nsec = NS_PER_S / MS_PER_S;
+ nanosleep(&onems, 0);
+ if ((rte_get_timer_cycles() - start) > twait) {
+ /* Timeout elapsed, try once more and exit. */
+ twait = 0;
+ }
+ } while (true);
+ if (!ret) {
+ if (!tcm->tcm_handle) {
+ flow_tcf_remove(dev, flow);
+ return rte_flow_error_set
+ (error, ENOENT,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
+ "netlink: rule zero handle returned");
+ }
dev_flow->tcf.applied = 1;
if (*dev_flow->tcf.ptc_flags & TCA_CLS_FLAGS_SKIP_SW)
return 0;
{
struct flow_tcf_stats_basic sb_data;
struct rte_flow_query_count *qc = data;
- struct priv *priv = dev->data->dev_private;
+ struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_tcf_context *ctx = priv->tcf_context;
struct mnl_socket *nl = ctx->nl;
struct mlx5_flow *dev_flow;
git.droids-corp.org / dpdk.git / blobdiff