Date: Mon, 31 Oct 2016 15:46:06 +0000 (UTC) From: Sean Bruno <sbruno@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r308131 - stable/11/sys/dev/netmap Message-ID: <201610311546.u9VFk6um056933@repo.freebsd.org>
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Author: sbruno Date: Mon Oct 31 15:46:06 2016 New Revision: 308131 URL: https://svnweb.freebsd.org/changeset/base/308131 Log: MFC r308038: The buffer address is always overwritten in the extended descriptor format, we have to refresh it ... always. This fixes problems reported in NetMap with em(4) devices after conversion to extended descriptor format in svn r293331. Modified: stable/11/sys/dev/netmap/if_em_netmap.h Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/dev/netmap/if_em_netmap.h ============================================================================== --- stable/11/sys/dev/netmap/if_em_netmap.h Mon Oct 31 15:33:58 2016 (r308130) +++ stable/11/sys/dev/netmap/if_em_netmap.h Mon Oct 31 15:46:06 2016 (r308131) @@ -277,9 +277,9 @@ em_netmap_rxsync(struct netmap_kring *kr if (addr == NETMAP_BUF_BASE(na)) /* bad buf */ goto ring_reset; + curr->read.buffer_addr = htole64(paddr); if (slot->flags & NS_BUF_CHANGED) { /* buffer has changed, reload map */ - curr->read.buffer_addr = htole64(paddr); netmap_reload_map(na, rxr->rxtag, rxbuf->map, addr); slot->flags &= ~NS_BUF_CHANGED; }
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