svn commit: r314369 - head/sys/dev/bnxt
Stephen Hurd
shurd at FreeBSD.org
Tue Feb 28 02:27:52 UTC 2017
Author: shurd (ports committer)
Date: Tue Feb 28 02:27:51 2017
New Revision: 314369
URL: https://svnweb.freebsd.org/changeset/base/314369
Log:
bnxt: propagate RSS hash type to the network stack.
RSS hash type will be used to identify the CPU on to which, a receive packet
will be queued. This patch extracts the "RSS hash type" from the receive
completion and sends it to the stack.
Submitted by: Venkatkumar Duvvuru <venkatkumar.duvvuru at broadcom.com>
Reviewed by: shurd
Approved by: sbruno
MFC after: 1 week
Sponsored by: Broadcom Limited
Differential Revision: https://reviews.freebsd.org/D9685
Modified:
head/sys/dev/bnxt/bnxt.h
head/sys/dev/bnxt/bnxt_txrx.c
Modified: head/sys/dev/bnxt/bnxt.h
==============================================================================
--- head/sys/dev/bnxt/bnxt.h Tue Feb 28 00:58:16 2017 (r314368)
+++ head/sys/dev/bnxt/bnxt.h Tue Feb 28 02:27:51 2017 (r314369)
@@ -92,6 +92,14 @@ __FBSDID("$FreeBSD$");
#define BNXT_MAX_MTU 9000
+#define BNXT_RSS_HASH_TYPE_TCPV4 0
+#define BNXT_RSS_HASH_TYPE_UDPV4 1
+#define BNXT_RSS_HASH_TYPE_IPV4 2
+#define BNXT_RSS_HASH_TYPE_TCPV6 3
+#define BNXT_RSS_HASH_TYPE_UDPV6 4
+#define BNXT_RSS_HASH_TYPE_IPV6 5
+#define BNXT_GET_RSS_PROFILE_ID(rss_hash_type) ((rss_hash_type >> 1) & 0x1F)
+
/* Completion related defines */
#define CMP_VALID(cmp, v_bit) \
((!!(((struct cmpl_base *)(cmp))->info3_v & htole32(CMPL_BASE_V))) == !!(v_bit) )
Modified: head/sys/dev/bnxt/bnxt_txrx.c
==============================================================================
--- head/sys/dev/bnxt/bnxt_txrx.c Tue Feb 28 00:58:16 2017 (r314368)
+++ head/sys/dev/bnxt/bnxt_txrx.c Tue Feb 28 02:27:51 2017 (r314369)
@@ -412,6 +412,37 @@ cmpl_invalid:
return avail;
}
+static void
+bnxt_set_rsstype(if_rxd_info_t ri, uint8_t rss_hash_type)
+{
+ uint8_t rss_profile_id;
+
+ rss_profile_id = BNXT_GET_RSS_PROFILE_ID(rss_hash_type);
+ switch (rss_profile_id) {
+ case BNXT_RSS_HASH_TYPE_TCPV4:
+ ri->iri_rsstype = M_HASHTYPE_RSS_TCP_IPV4;
+ break;
+ case BNXT_RSS_HASH_TYPE_UDPV4:
+ ri->iri_rsstype = M_HASHTYPE_RSS_UDP_IPV4;
+ break;
+ case BNXT_RSS_HASH_TYPE_IPV4:
+ ri->iri_rsstype = M_HASHTYPE_RSS_IPV4;
+ break;
+ case BNXT_RSS_HASH_TYPE_TCPV6:
+ ri->iri_rsstype = M_HASHTYPE_RSS_TCP_IPV6;
+ break;
+ case BNXT_RSS_HASH_TYPE_UDPV6:
+ ri->iri_rsstype = M_HASHTYPE_RSS_UDP_IPV6;
+ break;
+ case BNXT_RSS_HASH_TYPE_IPV6:
+ ri->iri_rsstype = M_HASHTYPE_RSS_IPV6;
+ break;
+ default:
+ ri->iri_rsstype = M_HASHTYPE_OPAQUE;
+ break;
+ }
+}
+
static int
bnxt_pkt_get_l2(struct bnxt_softc *softc, if_rxd_info_t ri,
struct bnxt_cp_ring *cpr, uint16_t flags_type)
@@ -429,13 +460,7 @@ bnxt_pkt_get_l2(struct bnxt_softc *softc
/* Extract from the first 16-byte BD */
if (flags_type & RX_PKT_CMPL_FLAGS_RSS_VALID) {
ri->iri_flowid = le32toh(rcp->rss_hash);
- /*
- * TODO: Extract something useful from rcp->rss_hash_type
- * (undocumented)
- * May be documented in the "LSI ES"
- * also check the firmware code.
- */
- ri->iri_rsstype = M_HASHTYPE_OPAQUE;
+ bnxt_set_rsstype(ri, rcp->rss_hash_type);
}
else {
ri->iri_rsstype = M_HASHTYPE_NONE;
@@ -515,13 +540,7 @@ bnxt_pkt_get_tpa(struct bnxt_softc *soft
/* Extract from the first 16-byte BD */
if (le16toh(tpas->low.flags_type) & RX_TPA_START_CMPL_FLAGS_RSS_VALID) {
ri->iri_flowid = le32toh(tpas->low.rss_hash);
- /*
- * TODO: Extract something useful from tpas->low.rss_hash_type
- * (undocumented)
- * May be documented in the "LSI ES"
- * also check the firmware code.
- */
- ri->iri_rsstype = M_HASHTYPE_OPAQUE;
+ bnxt_set_rsstype(ri, tpas->low.rss_hash_type);
}
else {
ri->iri_rsstype = M_HASHTYPE_NONE;
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