Author: np
Date: Thu May 24 10:55:26 2018
New Revision: 334148
URL: https://svnweb.freebsd.org/changeset/base/334148
Log:
cxgbe(4): Report IFCAP_TXRTLMT to kernels built with RATELIMIT if the
firmware has provisioned resources for this feature.
Sponsored by: Chelsio Communications
Modified:
head/sys/dev/cxgbe/t4_main.c
Modified: head/sys/dev/cxgbe/t4_main.c
==============================================================================
--- head/sys/dev/cxgbe/t4_main.c Thu May 24 10:22:57 2018
(r334147)
+++ head/sys/dev/cxgbe/t4_main.c Thu May 24 10:55:26 2018
(r334148)
@@ -1508,6 +1508,10 @@ cxgbe_vi_attach(device_t dev, struct vi_info *vi)
if (vi->nnmrxq != 0)
ifp->if_capabilities |= IFCAP_NETMAP;
#endif
+#ifdef RATELIMIT
+ if (is_ethoffload(vi->pi->adapter) && vi->nofldtxq != 0)
+ ifp->if_capabilities |= IFCAP_TXRTLMT;
+#endif
ifp->if_capenable = T4_CAP_ENABLE;
ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_IP | CSUM_TSO |
CSUM_UDP_IPV6 | CSUM_TCP_IPV6;
@@ -1526,10 +1530,22 @@ cxgbe_vi_attach(device_t dev, struct vi_info *vi)
#endif
sb = sbuf_new_auto();
sbuf_printf(sb, "%d txq, %d rxq (NIC)", vi->ntxq, vi->nrxq);
+#if defined(TCP_OFFLOAD) || defined(RATELIMIT)
+ switch (ifp->if_capabilities & (IFCAP_TOE | IFCAP_TXRTLMT)) {
+ case IFCAP_TOE:
+ sbuf_printf(sb, "; %d txq (TOE)", vi->nofldtxq);
+ break;
+ case IFCAP_TOE | IFCAP_TXRTLMT:
+ sbuf_printf(sb, "; %d txq (TOE/ETHOFLD)", vi->nofldtxq);
+ break;
+ case IFCAP_TXRTLMT:
+ sbuf_printf(sb, "; %d txq (ETHOFLD)", vi->nofldtxq);
+ break;
+ }
+#endif
#ifdef TCP_OFFLOAD
if (ifp->if_capabilities & IFCAP_TOE)
- sbuf_printf(sb, "; %d txq, %d rxq (TOE)",
- vi->nofldtxq, vi->nofldrxq);
+ sbuf_printf(sb, ", %d rxq (TOE)", vi->nofldrxq);
#endif
#ifdef DEV_NETMAP
if (ifp->if_capabilities & IFCAP_NETMAP)
@@ -1821,6 +1837,10 @@ redo_sifflags:
ifp->if_capenable ^= IFCAP_VLAN_HWTSO;
if (mask & IFCAP_VLAN_HWCSUM)
ifp->if_capenable ^= IFCAP_VLAN_HWCSUM;
+#ifdef RATELIMIT
+ if (mask & IFCAP_TXRTLMT)
+ ifp->if_capenable ^= IFCAP_TXRTLMT;
+#endif
#ifdef VLAN_CAPABILITIES
VLAN_CAPABILITIES(ifp);
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