efx_rx_scale_hash_flags_get(
__in efx_nic_t *enp,
__in efx_rx_hash_alg_t hash_alg,
- __inout_ecount(EFX_RX_HASH_NFLAGS) unsigned int *flags,
+ __out_ecount_part(max_nflags, *nflagsp) unsigned int *flagsp,
+ __in unsigned int max_nflags,
__out unsigned int *nflagsp)
{
efx_nic_cfg_t *encp = &enp->en_nic_cfg;
- boolean_t l4;
- boolean_t additional_modes;
- unsigned int *entryp = flags;
+ unsigned int nflags = 0;
efx_rc_t rc;
- if (flags == NULL || nflagsp == NULL) {
+ if (flagsp == NULL || nflagsp == NULL) {
rc = EINVAL;
goto fail1;
}
- l4 = encp->enc_rx_scale_l4_hash_supported;
- additional_modes = encp->enc_rx_scale_additional_modes_supported;
+ if ((encp->enc_rx_scale_hash_alg_mask & (1U << hash_alg)) == 0) {
+ nflags = 0;
+ goto done;
+ }
-#define LIST_FLAGS(_entryp, _class, _l4_hashing, _additional_modes) \
- do { \
- if (_l4_hashing) { \
- *(_entryp++) = EFX_RX_HASH(_class, 4TUPLE); \
- \
- if (_additional_modes) { \
- *(_entryp++) = \
- EFX_RX_HASH(_class, 2TUPLE_DST); \
- *(_entryp++) = \
- EFX_RX_HASH(_class, 2TUPLE_SRC); \
- } \
- } \
- \
- *(_entryp++) = EFX_RX_HASH(_class, 2TUPLE); \
- \
- if (_additional_modes) { \
- *(_entryp++) = EFX_RX_HASH(_class, 1TUPLE_DST); \
- *(_entryp++) = EFX_RX_HASH(_class, 1TUPLE_SRC); \
- } \
- \
- *(_entryp++) = EFX_RX_HASH(_class, DISABLE); \
- \
- _NOTE(CONSTANTCONDITION) \
+ /* Helper to add flags word to flags array without buffer overflow */
+#define INSERT_FLAGS(_flags) \
+ do { \
+ if (nflags >= max_nflags) { \
+ rc = E2BIG; \
+ goto fail2; \
+ } \
+ *(flagsp + nflags) = (_flags); \
+ nflags++; \
+ \
+ _NOTE(CONSTANTCONDITION) \
} while (B_FALSE)
- switch (hash_alg) {
- case EFX_RX_HASHALG_PACKED_STREAM:
- if ((encp->enc_rx_scale_hash_alg_mask & (1U << hash_alg)) == 0)
- break;
- /* FALLTHRU */
- case EFX_RX_HASHALG_TOEPLITZ:
- if ((encp->enc_rx_scale_hash_alg_mask & (1U << hash_alg)) == 0)
- break;
+ if (encp->enc_rx_scale_l4_hash_supported != B_FALSE) {
+ INSERT_FLAGS(EFX_RX_HASH(IPV4_TCP, 4TUPLE));
+ INSERT_FLAGS(EFX_RX_HASH(IPV6_TCP, 4TUPLE));
+ }
- LIST_FLAGS(entryp, IPV4_TCP, l4, additional_modes);
- LIST_FLAGS(entryp, IPV6_TCP, l4, additional_modes);
+ if ((encp->enc_rx_scale_l4_hash_supported != B_FALSE) &&
+ (encp->enc_rx_scale_additional_modes_supported != B_FALSE)) {
+ INSERT_FLAGS(EFX_RX_HASH(IPV4_TCP, 2TUPLE_DST));
+ INSERT_FLAGS(EFX_RX_HASH(IPV4_TCP, 2TUPLE_SRC));
- if (additional_modes) {
- LIST_FLAGS(entryp, IPV4_UDP, l4, additional_modes);
- LIST_FLAGS(entryp, IPV6_UDP, l4, additional_modes);
- }
+ INSERT_FLAGS(EFX_RX_HASH(IPV6_TCP, 2TUPLE_DST));
+ INSERT_FLAGS(EFX_RX_HASH(IPV6_TCP, 2TUPLE_SRC));
- LIST_FLAGS(entryp, IPV4, B_FALSE, additional_modes);
- LIST_FLAGS(entryp, IPV6, B_FALSE, additional_modes);
- break;
+ INSERT_FLAGS(EFX_RX_HASH(IPV4_UDP, 4TUPLE));
+ INSERT_FLAGS(EFX_RX_HASH(IPV4_UDP, 2TUPLE_DST));
+ INSERT_FLAGS(EFX_RX_HASH(IPV4_UDP, 2TUPLE_SRC));
- default:
- rc = EINVAL;
- goto fail2;
+ INSERT_FLAGS(EFX_RX_HASH(IPV6_UDP, 4TUPLE));
+ INSERT_FLAGS(EFX_RX_HASH(IPV6_UDP, 2TUPLE_DST));
+ INSERT_FLAGS(EFX_RX_HASH(IPV6_UDP, 2TUPLE_SRC));
+ }
+
+ INSERT_FLAGS(EFX_RX_HASH(IPV4_TCP, 2TUPLE));
+ INSERT_FLAGS(EFX_RX_HASH(IPV6_TCP, 2TUPLE));
+
+ INSERT_FLAGS(EFX_RX_HASH(IPV4, 2TUPLE));
+ INSERT_FLAGS(EFX_RX_HASH(IPV6, 2TUPLE));
+
+ if (encp->enc_rx_scale_additional_modes_supported != B_FALSE) {
+ INSERT_FLAGS(EFX_RX_HASH(IPV4_TCP, 1TUPLE_DST));
+ INSERT_FLAGS(EFX_RX_HASH(IPV4_TCP, 1TUPLE_SRC));
+
+ INSERT_FLAGS(EFX_RX_HASH(IPV6_TCP, 1TUPLE_DST));
+ INSERT_FLAGS(EFX_RX_HASH(IPV6_TCP, 1TUPLE_SRC));
+
+ INSERT_FLAGS(EFX_RX_HASH(IPV4_UDP, 2TUPLE));
+ INSERT_FLAGS(EFX_RX_HASH(IPV4_UDP, 1TUPLE_DST));
+ INSERT_FLAGS(EFX_RX_HASH(IPV4_UDP, 1TUPLE_SRC));
+
+ INSERT_FLAGS(EFX_RX_HASH(IPV6_UDP, 2TUPLE));
+ INSERT_FLAGS(EFX_RX_HASH(IPV6_UDP, 1TUPLE_DST));
+ INSERT_FLAGS(EFX_RX_HASH(IPV6_UDP, 1TUPLE_SRC));
+
+ INSERT_FLAGS(EFX_RX_HASH(IPV4, 1TUPLE_DST));
+ INSERT_FLAGS(EFX_RX_HASH(IPV4, 1TUPLE_SRC));
+
+ INSERT_FLAGS(EFX_RX_HASH(IPV6, 1TUPLE_DST));
+ INSERT_FLAGS(EFX_RX_HASH(IPV6, 1TUPLE_SRC));
}
-#undef LIST_FLAGS
+ INSERT_FLAGS(EFX_RX_HASH(IPV4_TCP, DISABLE));
+ INSERT_FLAGS(EFX_RX_HASH(IPV6_TCP, DISABLE));
+
+ INSERT_FLAGS(EFX_RX_HASH(IPV4_UDP, DISABLE));
+ INSERT_FLAGS(EFX_RX_HASH(IPV6_UDP, DISABLE));
- *nflagsp = (unsigned int)(entryp - flags);
- EFSYS_ASSERT3U(*nflagsp, <=, EFX_RX_HASH_NFLAGS);
+ INSERT_FLAGS(EFX_RX_HASH(IPV4, DISABLE));
+ INSERT_FLAGS(EFX_RX_HASH(IPV6, DISABLE));
+#undef INSERT_FLAGS
+
+done:
+ *nflagsp = nflags;
return (0);
fail2:
EFSYS_PROBE(fail2);
-
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
__in efx_rx_hash_type_t type,
__in boolean_t insert)
{
+ efx_nic_cfg_t *encp = &enp->en_nic_cfg;
const efx_rx_ops_t *erxop = enp->en_erxop;
- unsigned int type_flags[EFX_RX_HASH_NFLAGS];
- unsigned int type_nflags;
efx_rx_hash_type_t type_check;
unsigned int i;
efx_rc_t rc;
}
/*
- * Translate legacy flags to the new representation
- * so that chip-specific handlers will consider the
- * new flags only.
+ * If RSS hash type is represented by additional bits
+ * in the value, the latter need to be verified since
+ * not all bit combinations are valid RSS modes. Also,
+ * depending on the firmware, some valid combinations
+ * may be unsupported. Discern additional bits in the
+ * type value and try to recognise valid combinations.
+ * If some bits remain unrecognised, report the error.
*/
- if (type & EFX_RX_HASH_IPV4) {
- type |= EFX_RX_HASH(IPV4, 2TUPLE);
- type |= EFX_RX_HASH(IPV4_TCP, 2TUPLE);
- type |= EFX_RX_HASH(IPV4_UDP, 2TUPLE);
- }
-
- if (type & EFX_RX_HASH_TCPIPV4)
- type |= EFX_RX_HASH(IPV4_TCP, 4TUPLE);
+ type_check = type & ~EFX_RX_HASH_LEGACY_MASK;
+ if (type_check != 0) {
+ unsigned int type_flags[EFX_RX_HASH_NFLAGS];
+ unsigned int type_nflags;
- if (type & EFX_RX_HASH_IPV6) {
- type |= EFX_RX_HASH(IPV6, 2TUPLE);
- type |= EFX_RX_HASH(IPV6_TCP, 2TUPLE);
- type |= EFX_RX_HASH(IPV6_UDP, 2TUPLE);
- }
+ rc = efx_rx_scale_hash_flags_get(enp, alg, type_flags,
+ EFX_ARRAY_SIZE(type_flags), &type_nflags);
+ if (rc != 0)
+ goto fail2;
- if (type & EFX_RX_HASH_TCPIPV6)
- type |= EFX_RX_HASH(IPV6_TCP, 4TUPLE);
+ for (i = 0; i < type_nflags; ++i) {
+ if ((type_check & type_flags[i]) == type_flags[i])
+ type_check &= ~(type_flags[i]);
+ }
- type &= ~EFX_RX_HASH_LEGACY_MASK;
- type_check = type;
+ if (type_check != 0) {
+ rc = EINVAL;
+ goto fail3;
+ }
+ }
/*
- * Get the list of supported hash flags and sanitise the input.
+ * Translate EFX_RX_HASH() flags to their legacy counterparts
+ * provided that the FW claims no support for additional modes.
*/
- rc = efx_rx_scale_hash_flags_get(enp, alg, type_flags, &type_nflags);
- if (rc != 0)
- goto fail2;
-
- for (i = 0; i < type_nflags; ++i) {
- if ((type_check & type_flags[i]) == type_flags[i])
- type_check &= ~(type_flags[i]);
- }
+ if (encp->enc_rx_scale_additional_modes_supported == B_FALSE) {
+ efx_rx_hash_type_t t_ipv4 = EFX_RX_HASH(IPV4, 2TUPLE) |
+ EFX_RX_HASH(IPV4_TCP, 2TUPLE);
+ efx_rx_hash_type_t t_ipv6 = EFX_RX_HASH(IPV6, 2TUPLE) |
+ EFX_RX_HASH(IPV6_TCP, 2TUPLE);
+ efx_rx_hash_type_t t_ipv4_tcp = EFX_RX_HASH(IPV4_TCP, 4TUPLE);
+ efx_rx_hash_type_t t_ipv6_tcp = EFX_RX_HASH(IPV6_TCP, 4TUPLE);
+
+ if ((type & t_ipv4) == t_ipv4)
+ type |= EFX_RX_HASH_IPV4;
+ if ((type & t_ipv6) == t_ipv6)
+ type |= EFX_RX_HASH_IPV6;
+
+ if (encp->enc_rx_scale_l4_hash_supported == B_TRUE) {
+ if ((type & t_ipv4_tcp) == t_ipv4_tcp)
+ type |= EFX_RX_HASH_TCPIPV4;
+ if ((type & t_ipv6_tcp) == t_ipv6_tcp)
+ type |= EFX_RX_HASH_TCPIPV6;
+ }
- if (type_check != 0) {
- rc = EINVAL;
- goto fail3;
+ type &= EFX_RX_HASH_LEGACY_MASK;
}
if (erxop->erxo_scale_mode_set != NULL) {
{
efx_rxq_type_data_t type_data;
- memset(&type_data, 0, sizeof(type_data));
+ memset(&type_data, 0, sizeof (type_data));
type_data.ertd_packed_stream.eps_buf_size = ps_buf_size;
goto fail1;
}
- memset(&type_data, 0, sizeof(type_data));
+ memset(&type_data, 0, sizeof (type_data));
type_data.ertd_es_super_buffer.eessb_bufs_per_desc = n_bufs_per_desc;
type_data.ertd_es_super_buffer.eessb_max_dma_len = max_dma_len;
__in efx_rx_hash_type_t type,
__in boolean_t insert)
{
- efx_rx_hash_type_t type_ipv4 = EFX_RX_HASH(IPV4, 2TUPLE);
- efx_rx_hash_type_t type_ipv4_tcp = EFX_RX_HASH(IPV4_TCP, 4TUPLE);
- efx_rx_hash_type_t type_ipv6 = EFX_RX_HASH(IPV6, 2TUPLE);
- efx_rx_hash_type_t type_ipv6_tcp = EFX_RX_HASH(IPV6_TCP, 4TUPLE);
efx_rc_t rc;
if (rss_context != EFX_RSS_CONTEXT_DEFAULT) {
case EFX_RX_HASHALG_TOEPLITZ:
EFX_RX_TOEPLITZ_IPV4_HASH(enp, insert,
- (type & type_ipv4) == type_ipv4,
- (type & type_ipv4_tcp) == type_ipv4_tcp);
+ (type & EFX_RX_HASH_IPV4) ? B_TRUE : B_FALSE,
+ (type & EFX_RX_HASH_TCPIPV4) ? B_TRUE : B_FALSE);
EFX_RX_TOEPLITZ_IPV6_HASH(enp,
- (type & type_ipv6) == type_ipv6,
- (type & type_ipv6_tcp) == type_ipv6_tcp,
+ (type & EFX_RX_HASH_IPV6) ? B_TRUE : B_FALSE,
+ (type & EFX_RX_HASH_TCPIPV6) ? B_TRUE : B_FALSE,
rc);
if (rc != 0)
goto fail2;
Code Review / deb_dpdk.git / blobdiff