git: 99b3c9adbc41 - main - sfxge: use newly exposed RSS hash key API rather than ad-hoc hashing

From: Andrew Gallatin <gallatin_at_FreeBSD.org>
Date: Sat, 22 Nov 2025 14:31:03 UTC
The branch main has been updated by gallatin:

URL: https://cgit.FreeBSD.org/src/commit/?id=99b3c9adbc4152ceae234d21b6d0d19e2d0ea7d9

commit 99b3c9adbc4152ceae234d21b6d0d19e2d0ea7d9
Author:     Andrew Gallatin <gallatin@FreeBSD.org>
AuthorDate: 2025-11-22 14:29:35 +0000
Commit:     Andrew Gallatin <gallatin@FreeBSD.org>
CommitDate: 2025-11-22 14:29:35 +0000

    sfxge: use newly exposed RSS hash key API rather than ad-hoc hashing
    
    Differential Revision:  https://reviews.freebsd.org/D53102
    Reviewed by: arybchik, zlei
    Sponsored by: Netflix
---
 sys/dev/sfxge/sfxge.c    |  2 --
 sys/dev/sfxge/sfxge_rx.c | 14 --------------
 2 files changed, 16 deletions(-)

diff --git a/sys/dev/sfxge/sfxge.c b/sys/dev/sfxge/sfxge.c
index 7d3217fb50de..5ad9313a841f 100644
--- a/sys/dev/sfxge/sfxge.c
+++ b/sys/dev/sfxge/sfxge.c
@@ -60,9 +60,7 @@
 #include <net/if_media.h>
 #include <net/if_types.h>
 
-#ifdef RSS
 #include <net/rss_config.h>
-#endif
 
 #include "common/efx.h"
 
diff --git a/sys/dev/sfxge/sfxge_rx.c b/sys/dev/sfxge/sfxge_rx.c
index 7e0948425d77..961fea2e5f79 100644
--- a/sys/dev/sfxge/sfxge_rx.c
+++ b/sys/dev/sfxge/sfxge_rx.c
@@ -57,9 +57,7 @@
 
 #include <machine/in_cksum.h>
 
-#ifdef RSS
 #include <net/rss_config.h>
-#endif
 
 #include "common/efx.h"
 
@@ -165,17 +163,7 @@ sfxge_rx_qflush_failed(struct sfxge_rxq *rxq)
 	rxq->flush_state = SFXGE_FLUSH_FAILED;
 }
 
-#ifdef RSS
 static uint8_t toep_key[RSS_KEYSIZE];
-#else
-static uint8_t toep_key[] = {
-	0x6d, 0x5a, 0x56, 0xda, 0x25, 0x5b, 0x0e, 0xc2,
-	0x41, 0x67, 0x25, 0x3d, 0x43, 0xa3, 0x8f, 0xb0,
-	0xd0, 0xca, 0x2b, 0xcb, 0xae, 0x7b, 0x30, 0xb4,
-	0x77, 0xcb, 0x2d, 0xa3, 0x80, 0x30, 0xf2, 0x0c,
-	0x6a, 0x42, 0xb7, 0x3b, 0xbe, 0xac, 0x01, 0xfa
-};
-#endif
 
 static void
 sfxge_rx_post_refill(void *arg)
@@ -1143,9 +1131,7 @@ sfxge_rx_start(struct sfxge_softc *sc)
 	    EFX_RX_HASH_IPV4 | EFX_RX_HASH_TCPIPV4 |
 	    EFX_RX_HASH_IPV6 | EFX_RX_HASH_TCPIPV6, B_TRUE);
 
-#ifdef RSS
 	rss_getkey(toep_key);
-#endif
 	if ((rc = efx_rx_scale_key_set(sc->enp, EFX_RSS_CONTEXT_DEFAULT,
 				       toep_key,
 				       sizeof(toep_key))) != 0)