+#if EFSYS_OPT_RX_SCALE
+
+static __checkReturn efx_rc_t
+siena_rx_scale_mode_set(
+ __in efx_nic_t *enp,
+ __in uint32_t rss_context,
+ __in efx_rx_hash_alg_t alg,
+ __in efx_rx_hash_type_t type,
+ __in boolean_t insert)
+{
+ efx_rc_t rc;
+
+ if (rss_context != EFX_RSS_CONTEXT_DEFAULT) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ switch (alg) {
+ case EFX_RX_HASHALG_LFSR:
+ EFX_RX_LFSR_HASH(enp, insert);
+ break;
+
+ case EFX_RX_HASHALG_TOEPLITZ:
+ EFX_RX_TOEPLITZ_IPV4_HASH(enp, insert,
+ type & EFX_RX_HASH_IPV4,
+ type & EFX_RX_HASH_TCPIPV4);
+
+ EFX_RX_TOEPLITZ_IPV6_HASH(enp,
+ type & EFX_RX_HASH_IPV6,
+ type & EFX_RX_HASH_TCPIPV6,
+ rc);
+ if (rc != 0)
+ goto fail2;
+
+ break;
+
+ default:
+ rc = EINVAL;
+ goto fail3;
+ }
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ EFX_RX_LFSR_HASH(enp, B_FALSE);
+
+ return (rc);
+}
+#endif
+
+#if EFSYS_OPT_RX_SCALE
+static __checkReturn efx_rc_t
+siena_rx_scale_key_set(
+ __in efx_nic_t *enp,
+ __in uint32_t rss_context,
+ __in_ecount(n) uint8_t *key,
+ __in size_t n)
+{
+ efx_oword_t oword;
+ unsigned int byte;
+ unsigned int offset;
+ efx_rc_t rc;
+
+ if (rss_context != EFX_RSS_CONTEXT_DEFAULT) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ byte = 0;
+
+ /* Write Toeplitz IPv4 hash key */
+ EFX_ZERO_OWORD(oword);
+ for (offset = (FRF_BZ_RX_RSS_TKEY_LBN + FRF_BZ_RX_RSS_TKEY_WIDTH) / 8;
+ offset > 0 && byte < n;
+ --offset)
+ oword.eo_u8[offset - 1] = key[byte++];
+
+ EFX_BAR_WRITEO(enp, FR_BZ_RX_RSS_TKEY_REG, &oword);
+
+ byte = 0;
+
+ /* Verify Toeplitz IPv4 hash key */
+ EFX_BAR_READO(enp, FR_BZ_RX_RSS_TKEY_REG, &oword);
+ for (offset = (FRF_BZ_RX_RSS_TKEY_LBN + FRF_BZ_RX_RSS_TKEY_WIDTH) / 8;
+ offset > 0 && byte < n;
+ --offset) {
+ if (oword.eo_u8[offset - 1] != key[byte++]) {
+ rc = EFAULT;
+ goto fail2;
+ }
+ }
+
+ if ((enp->en_features & EFX_FEATURE_IPV6) == 0)
+ goto done;
+
+ byte = 0;
+
+ /* Write Toeplitz IPv6 hash key 3 */
+ EFX_BAR_READO(enp, FR_CZ_RX_RSS_IPV6_REG3, &oword);
+ for (offset = (FRF_CZ_RX_RSS_IPV6_TKEY_HI_LBN +
+ FRF_CZ_RX_RSS_IPV6_TKEY_HI_WIDTH) / 8;
+ offset > 0 && byte < n;
+ --offset)
+ oword.eo_u8[offset - 1] = key[byte++];
+
+ EFX_BAR_WRITEO(enp, FR_CZ_RX_RSS_IPV6_REG3, &oword);
+
+ /* Write Toeplitz IPv6 hash key 2 */
+ EFX_ZERO_OWORD(oword);
+ for (offset = (FRF_CZ_RX_RSS_IPV6_TKEY_MID_LBN +
+ FRF_CZ_RX_RSS_IPV6_TKEY_MID_WIDTH) / 8;
+ offset > 0 && byte < n;
+ --offset)
+ oword.eo_u8[offset - 1] = key[byte++];
+
+ EFX_BAR_WRITEO(enp, FR_CZ_RX_RSS_IPV6_REG2, &oword);
+
+ /* Write Toeplitz IPv6 hash key 1 */
+ EFX_ZERO_OWORD(oword);
+ for (offset = (FRF_CZ_RX_RSS_IPV6_TKEY_LO_LBN +
+ FRF_CZ_RX_RSS_IPV6_TKEY_LO_WIDTH) / 8;
+ offset > 0 && byte < n;
+ --offset)
+ oword.eo_u8[offset - 1] = key[byte++];
+
+ EFX_BAR_WRITEO(enp, FR_CZ_RX_RSS_IPV6_REG1, &oword);
+
+ byte = 0;
+
+ /* Verify Toeplitz IPv6 hash key 3 */
+ EFX_BAR_READO(enp, FR_CZ_RX_RSS_IPV6_REG3, &oword);
+ for (offset = (FRF_CZ_RX_RSS_IPV6_TKEY_HI_LBN +
+ FRF_CZ_RX_RSS_IPV6_TKEY_HI_WIDTH) / 8;
+ offset > 0 && byte < n;
+ --offset) {
+ if (oword.eo_u8[offset - 1] != key[byte++]) {
+ rc = EFAULT;
+ goto fail3;
+ }
+ }
+
+ /* Verify Toeplitz IPv6 hash key 2 */
+ EFX_BAR_READO(enp, FR_CZ_RX_RSS_IPV6_REG2, &oword);
+ for (offset = (FRF_CZ_RX_RSS_IPV6_TKEY_MID_LBN +
+ FRF_CZ_RX_RSS_IPV6_TKEY_MID_WIDTH) / 8;
+ offset > 0 && byte < n;
+ --offset) {
+ if (oword.eo_u8[offset - 1] != key[byte++]) {
+ rc = EFAULT;
+ goto fail4;
+ }
+ }
+
+ /* Verify Toeplitz IPv6 hash key 1 */
+ EFX_BAR_READO(enp, FR_CZ_RX_RSS_IPV6_REG1, &oword);
+ for (offset = (FRF_CZ_RX_RSS_IPV6_TKEY_LO_LBN +
+ FRF_CZ_RX_RSS_IPV6_TKEY_LO_WIDTH) / 8;
+ offset > 0 && byte < n;
+ --offset) {
+ if (oword.eo_u8[offset - 1] != key[byte++]) {
+ rc = EFAULT;
+ goto fail5;
+ }
+ }
+
+done:
+ return (0);
+
+fail5:
+ EFSYS_PROBE(fail5);
+fail4:
+ EFSYS_PROBE(fail4);
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif
+
+#if EFSYS_OPT_RX_SCALE
+static __checkReturn efx_rc_t
+siena_rx_scale_tbl_set(
+ __in efx_nic_t *enp,
+ __in uint32_t rss_context,
+ __in_ecount(n) unsigned int *table,
+ __in size_t n)
+{
+ efx_oword_t oword;
+ int index;
+ efx_rc_t rc;
+
+ EFX_STATIC_ASSERT(EFX_RSS_TBL_SIZE == FR_BZ_RX_INDIRECTION_TBL_ROWS);
+ EFX_STATIC_ASSERT(EFX_MAXRSS == (1 << FRF_BZ_IT_QUEUE_WIDTH));
+
+ if (rss_context != EFX_RSS_CONTEXT_DEFAULT) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ if (n > FR_BZ_RX_INDIRECTION_TBL_ROWS) {
+ rc = EINVAL;
+ goto fail2;
+ }
+
+ for (index = 0; index < FR_BZ_RX_INDIRECTION_TBL_ROWS; index++) {
+ uint32_t byte;
+
+ /* Calculate the entry to place in the table */
+ byte = (n > 0) ? (uint32_t)table[index % n] : 0;
+
+ EFSYS_PROBE2(table, int, index, uint32_t, byte);
+
+ EFX_POPULATE_OWORD_1(oword, FRF_BZ_IT_QUEUE, byte);
+
+ /* Write the table */
+ EFX_BAR_TBL_WRITEO(enp, FR_BZ_RX_INDIRECTION_TBL,
+ index, &oword, B_TRUE);
+ }
+
+ for (index = FR_BZ_RX_INDIRECTION_TBL_ROWS - 1; index >= 0; --index) {
+ uint32_t byte;
+
+ /* Determine if we're starting a new batch */
+ byte = (n > 0) ? (uint32_t)table[index % n] : 0;
+
+ /* Read the table */
+ EFX_BAR_TBL_READO(enp, FR_BZ_RX_INDIRECTION_TBL,
+ index, &oword, B_TRUE);
+
+ /* Verify the entry */
+ if (EFX_OWORD_FIELD(oword, FRF_BZ_IT_QUEUE) != byte) {
+ rc = EFAULT;
+ goto fail3;
+ }
+ }
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif
+