[dpdk-dev] [PATCH 21/56] net/sfc: import libefx RSS support
Andrew Rybchenko
arybchenko at solarflare.com
Mon Nov 21 16:00:35 CET 2016
EFSYS_OPT_RX_SCALE should be enabled to use it.
>From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
---
drivers/net/sfc/efx/base/ef10_filter.c | 10 +
drivers/net/sfc/efx/base/ef10_impl.h | 29 +++
drivers/net/sfc/efx/base/ef10_rx.c | 443 ++++++++++++++++++++++++++++++++
drivers/net/sfc/efx/base/efx.h | 67 +++++
drivers/net/sfc/efx/base/efx_check.h | 7 +
drivers/net/sfc/efx/base/efx_ev.c | 11 +
drivers/net/sfc/efx/base/efx_filter.c | 4 +
drivers/net/sfc/efx/base/efx_impl.h | 14 +
drivers/net/sfc/efx/base/efx_rx.c | 456 +++++++++++++++++++++++++++++++++
9 files changed, 1041 insertions(+)
diff --git a/drivers/net/sfc/efx/base/ef10_filter.c b/drivers/net/sfc/efx/base/ef10_filter.c
index 608a058..a881522 100644
--- a/drivers/net/sfc/efx/base/ef10_filter.c
+++ b/drivers/net/sfc/efx/base/ef10_filter.c
@@ -562,6 +562,10 @@ ef10_filter_add_internal(
EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
enp->en_family == EFX_FAMILY_MEDFORD);
+#if EFSYS_OPT_RX_SCALE
+ spec->efs_rss_context = enp->en_rss_context;
+#endif
+
hash = ef10_filter_hash(spec);
/*
@@ -1448,8 +1452,14 @@ ef10_filter_default_rxq_set(
{
ef10_filter_table_t *table = enp->en_filter.ef_ef10_filter_table;
+#if EFSYS_OPT_RX_SCALE
+ EFSYS_ASSERT((using_rss == B_FALSE) ||
+ (enp->en_rss_context != EF10_RSS_CONTEXT_INVALID));
+ table->eft_using_rss = using_rss;
+#else
EFSYS_ASSERT(using_rss == B_FALSE);
table->eft_using_rss = B_FALSE;
+#endif
table->eft_default_rxq = erp;
}
diff --git a/drivers/net/sfc/efx/base/ef10_impl.h b/drivers/net/sfc/efx/base/ef10_impl.h
index eedf121..f70773c 100644
--- a/drivers/net/sfc/efx/base/ef10_impl.h
+++ b/drivers/net/sfc/efx/base/ef10_impl.h
@@ -581,6 +581,35 @@ ef10_rx_scatter_enable(
#endif /* EFSYS_OPT_RX_SCATTER */
+#if EFSYS_OPT_RX_SCALE
+
+extern __checkReturn efx_rc_t
+ef10_rx_scale_mode_set(
+ __in efx_nic_t *enp,
+ __in efx_rx_hash_alg_t alg,
+ __in efx_rx_hash_type_t type,
+ __in boolean_t insert);
+
+extern __checkReturn efx_rc_t
+ef10_rx_scale_key_set(
+ __in efx_nic_t *enp,
+ __in_ecount(n) uint8_t *key,
+ __in size_t n);
+
+extern __checkReturn efx_rc_t
+ef10_rx_scale_tbl_set(
+ __in efx_nic_t *enp,
+ __in_ecount(n) unsigned int *table,
+ __in size_t n);
+
+extern __checkReturn uint32_t
+ef10_rx_prefix_hash(
+ __in efx_nic_t *enp,
+ __in efx_rx_hash_alg_t func,
+ __in uint8_t *buffer);
+
+#endif /* EFSYS_OPT_RX_SCALE */
+
extern __checkReturn efx_rc_t
ef10_rx_prefix_pktlen(
__in efx_nic_t *enp,
diff --git a/drivers/net/sfc/efx/base/ef10_rx.c b/drivers/net/sfc/efx/base/ef10_rx.c
index 95a182b..09a6314 100644
--- a/drivers/net/sfc/efx/base/ef10_rx.c
+++ b/drivers/net/sfc/efx/base/ef10_rx.c
@@ -150,11 +150,325 @@ efx_mcdi_fini_rxq(
return (rc);
}
+#if EFSYS_OPT_RX_SCALE
+static __checkReturn efx_rc_t
+efx_mcdi_rss_context_alloc(
+ __in efx_nic_t *enp,
+ __in efx_rx_scale_support_t scale_support,
+ __in uint32_t num_queues,
+ __out uint32_t *rss_contextp)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_ALLOC_IN_LEN,
+ MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN)];
+ uint32_t rss_context;
+ uint32_t context_type;
+ efx_rc_t rc;
+
+ if (num_queues > EFX_MAXRSS) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ switch (scale_support) {
+ case EFX_RX_SCALE_EXCLUSIVE:
+ context_type = MC_CMD_RSS_CONTEXT_ALLOC_IN_TYPE_EXCLUSIVE;
+ break;
+ case EFX_RX_SCALE_SHARED:
+ context_type = MC_CMD_RSS_CONTEXT_ALLOC_IN_TYPE_SHARED;
+ break;
+ default:
+ rc = EINVAL;
+ goto fail2;
+ }
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_RSS_CONTEXT_ALLOC;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_RSS_CONTEXT_ALLOC_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, RSS_CONTEXT_ALLOC_IN_UPSTREAM_PORT_ID,
+ EVB_PORT_ID_ASSIGNED);
+ MCDI_IN_SET_DWORD(req, RSS_CONTEXT_ALLOC_IN_TYPE, context_type);
+ /* NUM_QUEUES is only used to validate indirection table offsets */
+ MCDI_IN_SET_DWORD(req, RSS_CONTEXT_ALLOC_IN_NUM_QUEUES, num_queues);
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail3;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail4;
+ }
+
+ rss_context = MCDI_OUT_DWORD(req, RSS_CONTEXT_ALLOC_OUT_RSS_CONTEXT_ID);
+ if (rss_context == EF10_RSS_CONTEXT_INVALID) {
+ rc = ENOENT;
+ goto fail5;
+ }
+
+ *rss_contextp = rss_context;
+
+ 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 /* EFSYS_OPT_RX_SCALE */
+
+#if EFSYS_OPT_RX_SCALE
+static efx_rc_t
+efx_mcdi_rss_context_free(
+ __in efx_nic_t *enp,
+ __in uint32_t rss_context)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_FREE_IN_LEN,
+ MC_CMD_RSS_CONTEXT_FREE_OUT_LEN)];
+ efx_rc_t rc;
+
+ if (rss_context == EF10_RSS_CONTEXT_INVALID) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_RSS_CONTEXT_FREE;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_RSS_CONTEXT_FREE_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_RSS_CONTEXT_FREE_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, RSS_CONTEXT_FREE_IN_RSS_CONTEXT_ID, rss_context);
+
+ efx_mcdi_execute_quiet(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail2;
+ }
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
+#if EFSYS_OPT_RX_SCALE
+static efx_rc_t
+efx_mcdi_rss_context_set_flags(
+ __in efx_nic_t *enp,
+ __in uint32_t rss_context,
+ __in efx_rx_hash_type_t type)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_LEN,
+ MC_CMD_RSS_CONTEXT_SET_FLAGS_OUT_LEN)];
+ efx_rc_t rc;
+
+ if (rss_context == EF10_RSS_CONTEXT_INVALID) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_RSS_CONTEXT_SET_FLAGS;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_RSS_CONTEXT_SET_FLAGS_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, RSS_CONTEXT_SET_FLAGS_IN_RSS_CONTEXT_ID,
+ rss_context);
+
+ MCDI_IN_POPULATE_DWORD_4(req, RSS_CONTEXT_SET_FLAGS_IN_FLAGS,
+ RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_IPV4_EN,
+ (type & (1U << EFX_RX_HASH_IPV4)) ? 1 : 0,
+ RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_TCPV4_EN,
+ (type & (1U << EFX_RX_HASH_TCPIPV4)) ? 1 : 0,
+ RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_IPV6_EN,
+ (type & (1U << EFX_RX_HASH_IPV6)) ? 1 : 0,
+ RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_TCPV6_EN,
+ (type & (1U << EFX_RX_HASH_TCPIPV6)) ? 1 : 0);
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail2;
+ }
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
+#if EFSYS_OPT_RX_SCALE
+static efx_rc_t
+efx_mcdi_rss_context_set_key(
+ __in efx_nic_t *enp,
+ __in uint32_t rss_context,
+ __in_ecount(n) uint8_t *key,
+ __in size_t n)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_SET_KEY_IN_LEN,
+ MC_CMD_RSS_CONTEXT_SET_KEY_OUT_LEN)];
+ efx_rc_t rc;
+
+ if (rss_context == EF10_RSS_CONTEXT_INVALID) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_RSS_CONTEXT_SET_KEY;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_RSS_CONTEXT_SET_KEY_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_RSS_CONTEXT_SET_KEY_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, RSS_CONTEXT_SET_KEY_IN_RSS_CONTEXT_ID,
+ rss_context);
+
+ EFSYS_ASSERT3U(n, ==, MC_CMD_RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY_LEN);
+ if (n != MC_CMD_RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY_LEN) {
+ rc = EINVAL;
+ goto fail2;
+ }
+
+ memcpy(MCDI_IN2(req, uint8_t, RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY),
+ key, n);
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail3;
+ }
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
+#if EFSYS_OPT_RX_SCALE
+static efx_rc_t
+efx_mcdi_rss_context_set_table(
+ __in efx_nic_t *enp,
+ __in uint32_t rss_context,
+ __in_ecount(n) unsigned int *table,
+ __in size_t n)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_SET_TABLE_IN_LEN,
+ MC_CMD_RSS_CONTEXT_SET_TABLE_OUT_LEN)];
+ uint8_t *req_table;
+ int i, rc;
+
+ if (rss_context == EF10_RSS_CONTEXT_INVALID) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_RSS_CONTEXT_SET_TABLE;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_RSS_CONTEXT_SET_TABLE_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_RSS_CONTEXT_SET_TABLE_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, RSS_CONTEXT_SET_TABLE_IN_RSS_CONTEXT_ID,
+ rss_context);
+
+ req_table =
+ MCDI_IN2(req, uint8_t, RSS_CONTEXT_SET_TABLE_IN_INDIRECTION_TABLE);
+
+ for (i = 0;
+ i < MC_CMD_RSS_CONTEXT_SET_TABLE_IN_INDIRECTION_TABLE_LEN;
+ i++) {
+ req_table[i] = (n > 0) ? (uint8_t)table[i % n] : 0;
+ }
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail2;
+ }
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
__checkReturn efx_rc_t
ef10_rx_init(
__in efx_nic_t *enp)
{
+#if EFSYS_OPT_RX_SCALE
+
+ if (efx_mcdi_rss_context_alloc(enp, EFX_RX_SCALE_EXCLUSIVE, EFX_MAXRSS,
+ &enp->en_rss_context) == 0) {
+ /*
+ * Allocated an exclusive RSS context, which allows both the
+ * indirection table and key to be modified.
+ */
+ enp->en_rss_support = EFX_RX_SCALE_EXCLUSIVE;
+ enp->en_hash_support = EFX_RX_HASH_AVAILABLE;
+ } else {
+ /*
+ * Failed to allocate an exclusive RSS context. Continue
+ * operation without support for RSS. The pseudo-header in
+ * received packets will not contain a Toeplitz hash value.
+ */
+ enp->en_rss_support = EFX_RX_SCALE_UNAVAILABLE;
+ enp->en_hash_support = EFX_RX_HASH_UNAVAILABLE;
+ }
+
+#endif /* EFSYS_OPT_RX_SCALE */
return (0);
}
@@ -170,6 +484,104 @@ ef10_rx_scatter_enable(
}
#endif /* EFSYS_OPT_RX_SCATTER */
+#if EFSYS_OPT_RX_SCALE
+ __checkReturn efx_rc_t
+ef10_rx_scale_mode_set(
+ __in efx_nic_t *enp,
+ __in efx_rx_hash_alg_t alg,
+ __in efx_rx_hash_type_t type,
+ __in boolean_t insert)
+{
+ efx_rc_t rc;
+
+ EFSYS_ASSERT3U(alg, ==, EFX_RX_HASHALG_TOEPLITZ);
+ EFSYS_ASSERT3U(insert, ==, B_TRUE);
+
+ if ((alg != EFX_RX_HASHALG_TOEPLITZ) || (insert == B_FALSE)) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ if (enp->en_rss_support == EFX_RX_SCALE_UNAVAILABLE) {
+ rc = ENOTSUP;
+ goto fail2;
+ }
+
+ if ((rc = efx_mcdi_rss_context_set_flags(enp,
+ enp->en_rss_context, type)) != 0)
+ goto fail3;
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
+#if EFSYS_OPT_RX_SCALE
+ __checkReturn efx_rc_t
+ef10_rx_scale_key_set(
+ __in efx_nic_t *enp,
+ __in_ecount(n) uint8_t *key,
+ __in size_t n)
+{
+ efx_rc_t rc;
+
+ if (enp->en_rss_support == EFX_RX_SCALE_UNAVAILABLE) {
+ rc = ENOTSUP;
+ goto fail1;
+ }
+
+ if ((rc = efx_mcdi_rss_context_set_key(enp,
+ enp->en_rss_context, key, n)) != 0)
+ goto fail2;
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
+#if EFSYS_OPT_RX_SCALE
+ __checkReturn efx_rc_t
+ef10_rx_scale_tbl_set(
+ __in efx_nic_t *enp,
+ __in_ecount(n) unsigned int *table,
+ __in size_t n)
+{
+ efx_rc_t rc;
+
+ if (enp->en_rss_support == EFX_RX_SCALE_UNAVAILABLE) {
+ rc = ENOTSUP;
+ goto fail1;
+ }
+
+ if ((rc = efx_mcdi_rss_context_set_table(enp,
+ enp->en_rss_context, table, n)) != 0)
+ goto fail2;
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
/*
* EF10 RX pseudo-header
@@ -210,6 +622,29 @@ ef10_rx_prefix_pktlen(
return (0);
}
+#if EFSYS_OPT_RX_SCALE
+ __checkReturn uint32_t
+ef10_rx_prefix_hash(
+ __in efx_nic_t *enp,
+ __in efx_rx_hash_alg_t func,
+ __in uint8_t *buffer)
+{
+ _NOTE(ARGUNUSED(enp))
+
+ switch (func) {
+ case EFX_RX_HASHALG_TOEPLITZ:
+ return (buffer[0] |
+ (buffer[1] << 8) |
+ (buffer[2] << 16) |
+ (buffer[3] << 24));
+
+ default:
+ EFSYS_ASSERT(0);
+ return (0);
+ }
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
void
ef10_rx_qpost(
__in efx_rxq_t *erp,
@@ -402,7 +837,15 @@ ef10_rx_qdestroy(
ef10_rx_fini(
__in efx_nic_t *enp)
{
+#if EFSYS_OPT_RX_SCALE
+ if (enp->en_rss_support != EFX_RX_SCALE_UNAVAILABLE) {
+ (void) efx_mcdi_rss_context_free(enp, enp->en_rss_context);
+ }
+ enp->en_rss_context = 0;
+ enp->en_rss_support = EFX_RX_SCALE_UNAVAILABLE;
+#else
_NOTE(ARGUNUSED(enp))
+#endif /* EFSYS_OPT_RX_SCALE */
}
#endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */
diff --git a/drivers/net/sfc/efx/base/efx.h b/drivers/net/sfc/efx/base/efx.h
index bd85f0b..9ca80f6 100644
--- a/drivers/net/sfc/efx/base/efx.h
+++ b/drivers/net/sfc/efx/base/efx.h
@@ -1388,6 +1388,73 @@ efx_rx_scatter_enable(
__in unsigned int buf_size);
#endif /* EFSYS_OPT_RX_SCATTER */
+#if EFSYS_OPT_RX_SCALE
+
+typedef enum efx_rx_hash_alg_e {
+ EFX_RX_HASHALG_LFSR = 0,
+ EFX_RX_HASHALG_TOEPLITZ
+} efx_rx_hash_alg_t;
+
+typedef enum efx_rx_hash_type_e {
+ EFX_RX_HASH_IPV4 = 0,
+ EFX_RX_HASH_TCPIPV4,
+ EFX_RX_HASH_IPV6,
+ EFX_RX_HASH_TCPIPV6,
+} efx_rx_hash_type_t;
+
+typedef enum efx_rx_hash_support_e {
+ EFX_RX_HASH_UNAVAILABLE = 0, /* Hardware hash not inserted */
+ EFX_RX_HASH_AVAILABLE /* Insert hash with/without RSS */
+} efx_rx_hash_support_t;
+
+#define EFX_RSS_TBL_SIZE 128 /* Rows in RX indirection table */
+#define EFX_MAXRSS 64 /* RX indirection entry range */
+#define EFX_MAXRSS_LEGACY 16 /* See bug16611 and bug17213 */
+
+typedef enum efx_rx_scale_support_e {
+ EFX_RX_SCALE_UNAVAILABLE = 0, /* Not supported */
+ EFX_RX_SCALE_EXCLUSIVE, /* Writable key/indirection table */
+ EFX_RX_SCALE_SHARED /* Read-only key/indirection table */
+} efx_rx_scale_support_t;
+
+extern __checkReturn efx_rc_t
+efx_rx_hash_support_get(
+ __in efx_nic_t *enp,
+ __out efx_rx_hash_support_t *supportp);
+
+
+extern __checkReturn efx_rc_t
+efx_rx_scale_support_get(
+ __in efx_nic_t *enp,
+ __out efx_rx_scale_support_t *supportp);
+
+extern __checkReturn efx_rc_t
+efx_rx_scale_mode_set(
+ __in efx_nic_t *enp,
+ __in efx_rx_hash_alg_t alg,
+ __in efx_rx_hash_type_t type,
+ __in boolean_t insert);
+
+extern __checkReturn efx_rc_t
+efx_rx_scale_tbl_set(
+ __in efx_nic_t *enp,
+ __in_ecount(n) unsigned int *table,
+ __in size_t n);
+
+extern __checkReturn efx_rc_t
+efx_rx_scale_key_set(
+ __in efx_nic_t *enp,
+ __in_ecount(n) uint8_t *key,
+ __in size_t n);
+
+extern __checkReturn uint32_t
+efx_psuedo_hdr_hash_get(
+ __in efx_rxq_t *erp,
+ __in efx_rx_hash_alg_t func,
+ __in uint8_t *buffer);
+
+#endif /* EFSYS_OPT_RX_SCALE */
+
extern __checkReturn efx_rc_t
efx_psuedo_hdr_pkt_length_get(
__in efx_rxq_t *erp,
diff --git a/drivers/net/sfc/efx/base/efx_check.h b/drivers/net/sfc/efx/base/efx_check.h
index 91a764f..ac248b3 100644
--- a/drivers/net/sfc/efx/base/efx_check.h
+++ b/drivers/net/sfc/efx/base/efx_check.h
@@ -244,6 +244,13 @@
# error "RX_HDR_SPLIT is obsolete and is not supported"
#endif
+#if EFSYS_OPT_RX_SCALE
+/* Support receive scaling (RSS) */
+# if !(EFSYS_OPT_SIENA || EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD)
+# error "RX_SCALE requires SIENA or HUNTINGTON or MEDFORD"
+# endif
+#endif /* EFSYS_OPT_RX_SCALE */
+
#if EFSYS_OPT_RX_SCATTER
/* Support receive scatter DMA */
# if !(EFSYS_OPT_SIENA || EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD)
diff --git a/drivers/net/sfc/efx/base/efx_ev.c b/drivers/net/sfc/efx/base/efx_ev.c
index a667124..9f6a309 100644
--- a/drivers/net/sfc/efx/base/efx_ev.c
+++ b/drivers/net/sfc/efx/base/efx_ev.c
@@ -1285,6 +1285,13 @@ siena_ev_qcreate(
rc = EINVAL;
goto fail2;
}
+#if EFSYS_OPT_RX_SCALE
+ if (enp->en_intr.ei_type == EFX_INTR_LINE &&
+ index >= EFX_MAXRSS_LEGACY) {
+ rc = EINVAL;
+ goto fail3;
+ }
+#endif
for (size = 0; (1 << size) <= (EFX_EVQ_MAXNEVS / EFX_EVQ_MINNEVS);
size++)
if ((1 << size) == (int)(n / EFX_EVQ_MINNEVS))
@@ -1325,6 +1332,10 @@ siena_ev_qcreate(
fail4:
EFSYS_PROBE(fail4);
+#if EFSYS_OPT_RX_SCALE
+fail3:
+ EFSYS_PROBE(fail3);
+#endif
fail2:
EFSYS_PROBE(fail2);
fail1:
diff --git a/drivers/net/sfc/efx/base/efx_filter.c b/drivers/net/sfc/efx/base/efx_filter.c
index 192f6f5..13f9f3a 100644
--- a/drivers/net/sfc/efx/base/efx_filter.c
+++ b/drivers/net/sfc/efx/base/efx_filter.c
@@ -116,6 +116,10 @@ efx_filter_remove(
EFSYS_ASSERT3P(spec, !=, NULL);
EFSYS_ASSERT3U(spec->efs_flags, &, EFX_FILTER_FLAG_RX);
+#if EFSYS_OPT_RX_SCALE
+ spec->efs_rss_context = enp->en_rss_context;
+#endif
+
return (efop->efo_delete(enp, spec));
}
diff --git a/drivers/net/sfc/efx/base/efx_impl.h b/drivers/net/sfc/efx/base/efx_impl.h
index b7eeee7..e88e8a9 100644
--- a/drivers/net/sfc/efx/base/efx_impl.h
+++ b/drivers/net/sfc/efx/base/efx_impl.h
@@ -151,6 +151,15 @@ typedef struct efx_rx_ops_s {
#if EFSYS_OPT_RX_SCATTER
efx_rc_t (*erxo_scatter_enable)(efx_nic_t *, unsigned int);
#endif
+#if EFSYS_OPT_RX_SCALE
+ efx_rc_t (*erxo_scale_mode_set)(efx_nic_t *, efx_rx_hash_alg_t,
+ efx_rx_hash_type_t, boolean_t);
+ efx_rc_t (*erxo_scale_key_set)(efx_nic_t *, uint8_t *, size_t);
+ efx_rc_t (*erxo_scale_tbl_set)(efx_nic_t *, unsigned int *,
+ size_t);
+ uint32_t (*erxo_prefix_hash)(efx_nic_t *, efx_rx_hash_alg_t,
+ uint8_t *);
+#endif /* EFSYS_OPT_RX_SCALE */
efx_rc_t (*erxo_prefix_pktlen)(efx_nic_t *, uint8_t *,
uint16_t *);
void (*erxo_qpost)(efx_rxq_t *, efsys_dma_addr_t *, size_t,
@@ -461,6 +470,11 @@ struct efx_nic_s {
#if EFSYS_OPT_MCDI
efx_mcdi_t en_mcdi;
#endif /* EFSYS_OPT_MCDI */
+#if EFSYS_OPT_RX_SCALE
+ efx_rx_hash_support_t en_hash_support;
+ efx_rx_scale_support_t en_rss_support;
+ uint32_t en_rss_context;
+#endif /* EFSYS_OPT_RX_SCALE */
uint32_t en_vport_id;
union {
#if EFSYS_OPT_SIENA
diff --git a/drivers/net/sfc/efx/base/efx_rx.c b/drivers/net/sfc/efx/base/efx_rx.c
index a6f4c55..a884d43 100644
--- a/drivers/net/sfc/efx/base/efx_rx.c
+++ b/drivers/net/sfc/efx/base/efx_rx.c
@@ -49,6 +49,34 @@ siena_rx_scatter_enable(
__in unsigned int buf_size);
#endif /* EFSYS_OPT_RX_SCATTER */
+#if EFSYS_OPT_RX_SCALE
+static __checkReturn efx_rc_t
+siena_rx_scale_mode_set(
+ __in efx_nic_t *enp,
+ __in efx_rx_hash_alg_t alg,
+ __in efx_rx_hash_type_t type,
+ __in boolean_t insert);
+
+static __checkReturn efx_rc_t
+siena_rx_scale_key_set(
+ __in efx_nic_t *enp,
+ __in_ecount(n) uint8_t *key,
+ __in size_t n);
+
+static __checkReturn efx_rc_t
+siena_rx_scale_tbl_set(
+ __in efx_nic_t *enp,
+ __in_ecount(n) unsigned int *table,
+ __in size_t n);
+
+static __checkReturn uint32_t
+siena_rx_prefix_hash(
+ __in efx_nic_t *enp,
+ __in efx_rx_hash_alg_t func,
+ __in uint8_t *buffer);
+
+#endif /* EFSYS_OPT_RX_SCALE */
+
static __checkReturn efx_rc_t
siena_rx_prefix_pktlen(
__in efx_nic_t *enp,
@@ -104,6 +132,12 @@ static const efx_rx_ops_t __efx_rx_siena_ops = {
#if EFSYS_OPT_RX_SCATTER
siena_rx_scatter_enable, /* erxo_scatter_enable */
#endif
+#if EFSYS_OPT_RX_SCALE
+ siena_rx_scale_mode_set, /* erxo_scale_mode_set */
+ siena_rx_scale_key_set, /* erxo_scale_key_set */
+ siena_rx_scale_tbl_set, /* erxo_scale_tbl_set */
+ siena_rx_prefix_hash, /* erxo_prefix_hash */
+#endif
siena_rx_prefix_pktlen, /* erxo_prefix_pktlen */
siena_rx_qpost, /* erxo_qpost */
siena_rx_qpush, /* erxo_qpush */
@@ -121,6 +155,12 @@ static const efx_rx_ops_t __efx_rx_ef10_ops = {
#if EFSYS_OPT_RX_SCATTER
ef10_rx_scatter_enable, /* erxo_scatter_enable */
#endif
+#if EFSYS_OPT_RX_SCALE
+ ef10_rx_scale_mode_set, /* erxo_scale_mode_set */
+ ef10_rx_scale_key_set, /* erxo_scale_key_set */
+ ef10_rx_scale_tbl_set, /* erxo_scale_tbl_set */
+ ef10_rx_prefix_hash, /* erxo_prefix_hash */
+#endif
ef10_rx_prefix_pktlen, /* erxo_prefix_pktlen */
ef10_rx_qpost, /* erxo_qpost */
ef10_rx_qpush, /* erxo_qpush */
@@ -238,6 +278,136 @@ efx_rx_scatter_enable(
}
#endif /* EFSYS_OPT_RX_SCATTER */
+#if EFSYS_OPT_RX_SCALE
+ __checkReturn efx_rc_t
+efx_rx_hash_support_get(
+ __in efx_nic_t *enp,
+ __out efx_rx_hash_support_t *supportp)
+{
+ efx_rc_t rc;
+
+ EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+ EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_RX);
+
+ if (supportp == NULL) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ /* Report if resources are available to insert RX hash value */
+ *supportp = enp->en_hash_support;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+efx_rx_scale_support_get(
+ __in efx_nic_t *enp,
+ __out efx_rx_scale_support_t *supportp)
+{
+ efx_rc_t rc;
+
+ EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+ EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_RX);
+
+ if (supportp == NULL) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ /* Report if resources are available to support RSS */
+ *supportp = enp->en_rss_support;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+efx_rx_scale_mode_set(
+ __in efx_nic_t *enp,
+ __in efx_rx_hash_alg_t alg,
+ __in efx_rx_hash_type_t type,
+ __in boolean_t insert)
+{
+ const efx_rx_ops_t *erxop = enp->en_erxop;
+ efx_rc_t rc;
+
+ EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+ EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_RX);
+
+ if (erxop->erxo_scale_mode_set != NULL) {
+ if ((rc = erxop->erxo_scale_mode_set(enp, alg,
+ type, insert)) != 0)
+ goto fail1;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
+#if EFSYS_OPT_RX_SCALE
+ __checkReturn efx_rc_t
+efx_rx_scale_key_set(
+ __in efx_nic_t *enp,
+ __in_ecount(n) uint8_t *key,
+ __in size_t n)
+{
+ const efx_rx_ops_t *erxop = enp->en_erxop;
+ efx_rc_t rc;
+
+ EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+ EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_RX);
+
+ if ((rc = erxop->erxo_scale_key_set(enp, key, n)) != 0)
+ goto fail1;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
+#if EFSYS_OPT_RX_SCALE
+ __checkReturn efx_rc_t
+efx_rx_scale_tbl_set(
+ __in efx_nic_t *enp,
+ __in_ecount(n) unsigned int *table,
+ __in size_t n)
+{
+ const efx_rx_ops_t *erxop = enp->en_erxop;
+ efx_rc_t rc;
+
+ EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+ EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_RX);
+
+ if ((rc = erxop->erxo_scale_tbl_set(enp, table, n)) != 0)
+ goto fail1;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
void
efx_rx_qpost(
__in efx_rxq_t *erp,
@@ -380,6 +550,23 @@ efx_psuedo_hdr_pkt_length_get(
return (erxop->erxo_prefix_pktlen(enp, buffer, lengthp));
}
+#if EFSYS_OPT_RX_SCALE
+ __checkReturn uint32_t
+efx_psuedo_hdr_hash_get(
+ __in efx_rxq_t *erp,
+ __in efx_rx_hash_alg_t func,
+ __in uint8_t *buffer)
+{
+ efx_nic_t *enp = erp->er_enp;
+ const efx_rx_ops_t *erxop = enp->en_erxop;
+
+ EFSYS_ASSERT3U(erp->er_magic, ==, EFX_RXQ_MAGIC);
+
+ EFSYS_ASSERT3U(enp->en_hash_support, ==, EFX_RX_HASH_AVAILABLE);
+ return (erxop->erxo_prefix_hash(enp, func, buffer));
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
#if EFSYS_OPT_SIENA
static __checkReturn efx_rc_t
@@ -407,6 +594,14 @@ siena_rx_init(
index, &oword, B_TRUE);
}
+#if EFSYS_OPT_RX_SCALE
+ /* The RSS key and indirection table are writable. */
+ enp->en_rss_support = EFX_RX_SCALE_EXCLUSIVE;
+
+ /* Hardware can insert RX hash with/without RSS */
+ enp->en_hash_support = EFX_RX_HASH_AVAILABLE;
+#endif /* EFSYS_OPT_RX_SCALE */
+
return (0);
}
@@ -515,6 +710,241 @@ siena_rx_scatter_enable(
} while (B_FALSE)
+#if EFSYS_OPT_RX_SCALE
+
+static __checkReturn efx_rc_t
+siena_rx_scale_mode_set(
+ __in efx_nic_t *enp,
+ __in efx_rx_hash_alg_t alg,
+ __in efx_rx_hash_type_t type,
+ __in boolean_t insert)
+{
+ efx_rc_t rc;
+
+ 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 & (1 << EFX_RX_HASH_IPV4),
+ type & (1 << EFX_RX_HASH_TCPIPV4));
+
+ EFX_RX_TOEPLITZ_IPV6_HASH(enp,
+ type & (1 << EFX_RX_HASH_IPV6),
+ type & (1 << EFX_RX_HASH_TCPIPV6),
+ rc);
+ if (rc != 0)
+ goto fail1;
+
+ break;
+
+ default:
+ rc = EINVAL;
+ goto fail2;
+ }
+
+ return (0);
+
+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_ecount(n) uint8_t *key,
+ __in size_t n)
+{
+ efx_oword_t oword;
+ unsigned int byte;
+ unsigned int offset;
+ efx_rc_t rc;
+
+ 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 fail1;
+ }
+ }
+
+ 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 fail2;
+ }
+ }
+
+ /* 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 fail3;
+ }
+ }
+
+ /* 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 fail4;
+ }
+ }
+
+done:
+ return (0);
+
+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_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 (n > FR_BZ_RX_INDIRECTION_TBL_ROWS) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ 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 fail2;
+ }
+ }
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif
+
/*
* Falcon/Siena psuedo-header
* --------------------------
@@ -531,6 +961,32 @@ siena_rx_scatter_enable(
* LL.LL LFSR hash (16-bit big-endian)
*/
+#if EFSYS_OPT_RX_SCALE
+static __checkReturn uint32_t
+siena_rx_prefix_hash(
+ __in efx_nic_t *enp,
+ __in efx_rx_hash_alg_t func,
+ __in uint8_t *buffer)
+{
+ _NOTE(ARGUNUSED(enp))
+
+ switch (func) {
+ case EFX_RX_HASHALG_TOEPLITZ:
+ return ((buffer[12] << 24) |
+ (buffer[13] << 16) |
+ (buffer[14] << 8) |
+ buffer[15]);
+
+ case EFX_RX_HASHALG_LFSR:
+ return ((buffer[14] << 8) | buffer[15]);
+
+ default:
+ EFSYS_ASSERT(0);
+ return (0);
+ }
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
static __checkReturn efx_rc_t
siena_rx_prefix_pktlen(
__in efx_nic_t *enp,
--
2.5.5
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