svn commit: r340808 - head/sys/dev/sfxge/common
Andrew Rybchenko
arybchik at FreeBSD.org
Fri Nov 23 09:15:23 UTC 2018
Author: arybchik
Date: Fri Nov 23 09:15:20 2018
New Revision: 340808
URL: https://svnweb.freebsd.org/changeset/base/340808
Log:
sfxge(4): rename API to check Rx scale and hash support
Rename efx_rx_scale_support_get() to efx_rx_scale_default_support_get(),
and efx_rx_hash_support_get() to efx_rx_hash_default_support_get().
All these really report is whether an exclusive RSS context was
successfully acquired at efx_rx_init().
efx_rx_scale_support_get() sounds like it reports whether the device
supports RSS, and whether exclusive or shared contexts are supported,
but it doesn't do that. Renaming it to
efx_rx_scale_default_support_get() helps to reflect that it reports
what RSS support the client gets without trying to allocate RSS
contexts itself.
Also rename efx_rx_scale_support_t to efx_rx_scale_context_type_t, to
make the enum more suitable for specifying the type of an RSS context
to be allocated.
Submitted by: Mark Spender <mspender at solarflare.com>
Sponsored by: Solarflare Communications, Inc.
Differential Revision: https://reviews.freebsd.org/D18078
Modified:
head/sys/dev/sfxge/common/ef10_rx.c
head/sys/dev/sfxge/common/efx.h
head/sys/dev/sfxge/common/efx_impl.h
head/sys/dev/sfxge/common/efx_rx.c
Modified: head/sys/dev/sfxge/common/ef10_rx.c
==============================================================================
--- head/sys/dev/sfxge/common/ef10_rx.c Fri Nov 23 09:15:08 2018 (r340807)
+++ head/sys/dev/sfxge/common/ef10_rx.c Fri Nov 23 09:15:20 2018 (r340808)
@@ -162,7 +162,7 @@ fail1:
static __checkReturn efx_rc_t
efx_mcdi_rss_context_alloc(
__in efx_nic_t *enp,
- __in efx_rx_scale_support_t scale_support,
+ __in efx_rx_scale_context_type_t type,
__in uint32_t num_queues,
__out uint32_t *rss_contextp)
{
@@ -178,7 +178,7 @@ efx_mcdi_rss_context_alloc(
goto fail1;
}
- switch (scale_support) {
+ switch (type) {
case EFX_RX_SCALE_EXCLUSIVE:
context_type = MC_CMD_RSS_CONTEXT_ALLOC_IN_TYPE_EXCLUSIVE;
break;
@@ -464,7 +464,7 @@ ef10_rx_init(
* 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_rss_context_type = EFX_RX_SCALE_EXCLUSIVE;
enp->en_hash_support = EFX_RX_HASH_AVAILABLE;
} else {
/*
@@ -472,7 +472,7 @@ ef10_rx_init(
* 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_rss_context_type = EFX_RX_SCALE_UNAVAILABLE;
enp->en_hash_support = EFX_RX_HASH_UNAVAILABLE;
}
@@ -510,7 +510,7 @@ ef10_rx_scale_mode_set(
goto fail1;
}
- if (enp->en_rss_support == EFX_RX_SCALE_UNAVAILABLE) {
+ if (enp->en_rss_context_type == EFX_RX_SCALE_UNAVAILABLE) {
rc = ENOTSUP;
goto fail2;
}
@@ -541,7 +541,7 @@ ef10_rx_scale_key_set(
{
efx_rc_t rc;
- if (enp->en_rss_support == EFX_RX_SCALE_UNAVAILABLE) {
+ if (enp->en_rss_context_type == EFX_RX_SCALE_UNAVAILABLE) {
rc = ENOTSUP;
goto fail1;
}
@@ -570,7 +570,7 @@ ef10_rx_scale_tbl_set(
{
efx_rc_t rc;
- if (enp->en_rss_support == EFX_RX_SCALE_UNAVAILABLE) {
+ if (enp->en_rss_context_type == EFX_RX_SCALE_UNAVAILABLE) {
rc = ENOTSUP;
goto fail1;
}
@@ -981,11 +981,10 @@ ef10_rx_fini(
__in efx_nic_t *enp)
{
#if EFSYS_OPT_RX_SCALE
- if (enp->en_rss_support != EFX_RX_SCALE_UNAVAILABLE) {
+ if (enp->en_rss_context_type != 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;
+ enp->en_rss_context_type = EFX_RX_SCALE_UNAVAILABLE;
#else
_NOTE(ARGUNUSED(enp))
#endif /* EFSYS_OPT_RX_SCALE */
Modified: head/sys/dev/sfxge/common/efx.h
==============================================================================
--- head/sys/dev/sfxge/common/efx.h Fri Nov 23 09:15:08 2018 (r340807)
+++ head/sys/dev/sfxge/common/efx.h Fri Nov 23 09:15:20 2018 (r340808)
@@ -1916,22 +1916,22 @@ typedef enum efx_rx_hash_support_e {
#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 */
+typedef enum efx_rx_scale_context_type_e {
+ EFX_RX_SCALE_UNAVAILABLE = 0, /* No RX scale context */
EFX_RX_SCALE_EXCLUSIVE, /* Writable key/indirection table */
EFX_RX_SCALE_SHARED /* Read-only key/indirection table */
-} efx_rx_scale_support_t;
+} efx_rx_scale_context_type_t;
extern __checkReturn efx_rc_t
-efx_rx_hash_support_get(
+efx_rx_hash_default_support_get(
__in efx_nic_t *enp,
__out efx_rx_hash_support_t *supportp);
extern __checkReturn efx_rc_t
-efx_rx_scale_support_get(
+efx_rx_scale_default_support_get(
__in efx_nic_t *enp,
- __out efx_rx_scale_support_t *supportp);
+ __out efx_rx_scale_context_type_t *typep);
extern __checkReturn efx_rc_t
efx_rx_scale_mode_set(
Modified: head/sys/dev/sfxge/common/efx_impl.h
==============================================================================
--- head/sys/dev/sfxge/common/efx_impl.h Fri Nov 23 09:15:08 2018 (r340807)
+++ head/sys/dev/sfxge/common/efx_impl.h Fri Nov 23 09:15:20 2018 (r340808)
@@ -644,9 +644,9 @@ struct efx_nic_s {
const efx_vpd_ops_t *en_evpdop;
#endif /* EFSYS_OPT_VPD */
#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;
+ efx_rx_hash_support_t en_hash_support;
+ efx_rx_scale_context_type_t en_rss_context_type;
+ uint32_t en_rss_context;
#endif /* EFSYS_OPT_RX_SCALE */
uint32_t en_vport_id;
#if EFSYS_OPT_LICENSING
Modified: head/sys/dev/sfxge/common/efx_rx.c
==============================================================================
--- head/sys/dev/sfxge/common/efx_rx.c Fri Nov 23 09:15:08 2018 (r340807)
+++ head/sys/dev/sfxge/common/efx_rx.c Fri Nov 23 09:15:20 2018 (r340808)
@@ -309,7 +309,7 @@ fail1:
#if EFSYS_OPT_RX_SCALE
__checkReturn efx_rc_t
-efx_rx_hash_support_get(
+efx_rx_hash_default_support_get(
__in efx_nic_t *enp,
__out efx_rx_hash_support_t *supportp)
{
@@ -323,7 +323,10 @@ efx_rx_hash_support_get(
goto fail1;
}
- /* Report if resources are available to insert RX hash value */
+ /*
+ * Report the hashing support the client gets by default if it
+ * does not allocate an RSS context itself.
+ */
*supportp = enp->en_hash_support;
return (0);
@@ -335,22 +338,25 @@ fail1:
}
__checkReturn efx_rc_t
-efx_rx_scale_support_get(
+efx_rx_scale_default_support_get(
__in efx_nic_t *enp,
- __out efx_rx_scale_support_t *supportp)
+ __out efx_rx_scale_context_type_t *typep)
{
efx_rc_t rc;
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_RX);
- if (supportp == NULL) {
+ if (typep == NULL) {
rc = EINVAL;
goto fail1;
}
- /* Report if resources are available to support RSS */
- *supportp = enp->en_rss_support;
+ /*
+ * Report the RSS support the client gets by default if it
+ * does not allocate an RSS context itself.
+ */
+ *typep = enp->en_rss_context_type;
return (0);
@@ -659,7 +665,7 @@ siena_rx_init(
#if EFSYS_OPT_RX_SCALE
/* The RSS key and indirection table are writable. */
- enp->en_rss_support = EFX_RX_SCALE_EXCLUSIVE;
+ enp->en_rss_context_type = EFX_RX_SCALE_EXCLUSIVE;
/* Hardware can insert RX hash with/without RSS */
enp->en_hash_support = EFX_RX_HASH_AVAILABLE;
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