d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

net/sfc/base: import RSS support

Browse Source 
EFSYS_OPT_RX_SCALE should be enabled to use it.

From Solarflare Communications Inc.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
This commit is contained in:
Andrew Rybchenko 2016-11-29 16:18:53 +00:00 committed by Ferruh Yigit
parent 27c922ff6a
commit 5935cd8c47
9 changed files with 1041 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/sfc/base/ef10_filter.c
View File

@ -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;
}

29
drivers/net/sfc/base/ef10_impl.h
View File

@ -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,

443
drivers/net/sfc/base/ef10_rx.c
View File

@ -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 */

67
drivers/net/sfc/base/efx.h
View File

@ -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_pseudo_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_pseudo_hdr_pkt_length_get(
__in efx_rxq_t *erp,

7
drivers/net/sfc/base/efx_check.h
View File

@ -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)

11
drivers/net/sfc/base/efx_ev.c
View File

@ -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:

4
drivers/net/sfc/base/efx_filter.c
View File

@ -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));
}

14
drivers/net/sfc/base/efx_impl.h
View File

@ -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

456
drivers/net/sfc/base/efx_rx.c
View File

@ -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,
@ -103,6 +131,12 @@ static const efx_rx_ops_t __efx_rx_siena_ops = {
siena_rx_fini, /* erxo_fini */
#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 */
@ -120,6 +154,12 @@ static const efx_rx_ops_t __efx_rx_ef10_ops = {
ef10_rx_fini, /* erxo_fini */
#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 */
@ -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_pseudo_hdr_pkt_length_get(
return (erxop->erxo_prefix_pktlen(enp, buffer, lengthp));
}
#if EFSYS_OPT_RX_SCALE
__checkReturn uint32_t
efx_pseudo_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 pseudo-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,