Date: Thu, 15 Aug 2013 21:48:30 +0000 (UTC) From: Navdeep Parhar <np@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r254386 - user/np/cxl_tuning/sys/dev/cxgbe Message-ID: <201308152148.r7FLmUZm029507@svn.freebsd.org>
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Author: np Date: Thu Aug 15 21:48:29 2013 New Revision: 254386 URL: http://svnweb.freebsd.org/changeset/base/254386 Log: Flush inactive LRO entries periodically. Modified: user/np/cxl_tuning/sys/dev/cxgbe/adapter.h user/np/cxl_tuning/sys/dev/cxgbe/t4_main.c user/np/cxl_tuning/sys/dev/cxgbe/t4_sge.c Modified: user/np/cxl_tuning/sys/dev/cxgbe/adapter.h ============================================================================== --- user/np/cxl_tuning/sys/dev/cxgbe/adapter.h Thu Aug 15 21:24:43 2013 (r254385) +++ user/np/cxl_tuning/sys/dev/cxgbe/adapter.h Thu Aug 15 21:48:29 2013 (r254386) @@ -559,6 +559,7 @@ struct adapter { bus_dma_tag_t dmat; /* Parent DMA tag */ struct sge sge; + int lro_timeout; struct taskqueue *tq[NCHAN]; /* taskqueues that flush data out */ struct port_info *port[MAX_NPORTS]; Modified: user/np/cxl_tuning/sys/dev/cxgbe/t4_main.c ============================================================================== --- user/np/cxl_tuning/sys/dev/cxgbe/t4_main.c Thu Aug 15 21:24:43 2013 (r254385) +++ user/np/cxl_tuning/sys/dev/cxgbe/t4_main.c Thu Aug 15 21:48:29 2013 (r254386) @@ -4230,6 +4230,10 @@ t4_sysctls(struct adapter *sc) t4_sge_sysctls(sc, ctx, children); + sc->lro_timeout = 100; + SYSCTL_ADD_INT(ctx, children, OID_AUTO, "lro_timeout", CTLFLAG_RW, + &sc->lro_timeout, 0, "lro inactive-flush timeout (in us)"); + #ifdef SBUF_DRAIN /* * dev.t4nex.X.misc. Marked CTLFLAG_SKIP to avoid information overload. Modified: user/np/cxl_tuning/sys/dev/cxgbe/t4_sge.c ============================================================================== --- user/np/cxl_tuning/sys/dev/cxgbe/t4_sge.c Thu Aug 15 21:24:43 2013 (r254385) +++ user/np/cxl_tuning/sys/dev/cxgbe/t4_sge.c Thu Aug 15 21:48:29 2013 (r254386) @@ -39,6 +39,7 @@ __FBSDID("$FreeBSD$"); #include <sys/malloc.h> #include <sys/queue.h> #include <sys/taskqueue.h> +#include <sys/time.h> #include <sys/sysctl.h> #include <sys/smp.h> #include <net/bpf.h> @@ -1006,6 +1007,7 @@ service_iq(struct sge_iq *iq, int budget uint32_t lq; struct mbuf *m0; STAILQ_HEAD(, sge_iq) iql = STAILQ_HEAD_INITIALIZER(iql); + const struct timeval lro_timeout = {0, sc->lro_timeout}; limit = budget ? budget : iq->qsize / 8; @@ -1095,6 +1097,14 @@ service_iq(struct sge_iq *iq, int budget V_SEINTARM(V_QINTR_TIMER_IDX(X_TIMERREG_UPDATE_CIDX))); ndescs = 0; +#if defined(INET) || defined(INET6) + if (iq->flags & IQ_LRO_ENABLED && + sc->lro_timeout != 0) { + tcp_lro_flush_inactive(&rxq->lro, + &lro_timeout); + } +#endif + if (fl_bufs_used > 0) { FL_LOCK(fl); fl->needed += fl_bufs_used;
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