Date: Mon, 14 Oct 2013 23:32:57 +0000 (UTC) From: Navdeep Parhar <np@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r256477 - head/sys/dev/cxgbe Message-ID: <201310142332.r9ENWvCl034655@svn.freebsd.org>
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Author: np Date: Mon Oct 14 23:32:56 2013 New Revision: 256477 URL: http://svnweb.freebsd.org/changeset/base/256477 Log: cxgbe(4): Store the log2 of the # of doorbells per BAR2 page for both ingress and egress queues, and for both T4 and T5. These values are used by the T4/T5 iWARP driver. Modified: head/sys/dev/cxgbe/adapter.h head/sys/dev/cxgbe/t4_sge.c Modified: head/sys/dev/cxgbe/adapter.h ============================================================================== --- head/sys/dev/cxgbe/adapter.h Mon Oct 14 23:31:18 2013 (r256476) +++ head/sys/dev/cxgbe/adapter.h Mon Oct 14 23:32:56 2013 (r256477) @@ -510,7 +510,8 @@ struct sge { int timer_val[SGE_NTIMERS]; int counter_val[SGE_NCOUNTERS]; int fl_starve_threshold; - int s_qpp; + int eq_s_qpp; + int iq_s_qpp; int nrxq; /* total # of Ethernet rx queues */ int ntxq; /* total # of Ethernet tx tx queues */ Modified: head/sys/dev/cxgbe/t4_sge.c ============================================================================== --- head/sys/dev/cxgbe/t4_sge.c Mon Oct 14 23:31:18 2013 (r256476) +++ head/sys/dev/cxgbe/t4_sge.c Mon Oct 14 23:32:56 2013 (r256477) @@ -569,12 +569,17 @@ t4_read_chip_settings(struct adapter *sc r = t4_read_reg(sc, A_SGE_CONM_CTRL); s->fl_starve_threshold = G_EGRTHRESHOLD(r) * 2 + 1; - if (is_t5(sc)) { - r = t4_read_reg(sc, A_SGE_EGRESS_QUEUES_PER_PAGE_PF); - r >>= S_QUEUESPERPAGEPF0 + - (S_QUEUESPERPAGEPF1 - S_QUEUESPERPAGEPF0) * sc->pf; - s->s_qpp = r & M_QUEUESPERPAGEPF0; - } + /* egress queues: log2 of # of doorbells per BAR2 page */ + r = t4_read_reg(sc, A_SGE_EGRESS_QUEUES_PER_PAGE_PF); + r >>= S_QUEUESPERPAGEPF0 + + (S_QUEUESPERPAGEPF1 - S_QUEUESPERPAGEPF0) * sc->pf; + s->eq_s_qpp = r & M_QUEUESPERPAGEPF0; + + /* ingress queues: log2 of # of doorbells per BAR2 page */ + r = t4_read_reg(sc, A_SGE_INGRESS_QUEUES_PER_PAGE_PF); + r >>= S_QUEUESPERPAGEPF0 + + (S_QUEUESPERPAGEPF1 - S_QUEUESPERPAGEPF0) * sc->pf; + s->iq_s_qpp = r & M_QUEUESPERPAGEPF0; t4_init_tp_params(sc); @@ -2799,7 +2804,7 @@ alloc_eq(struct adapter *sc, struct port if (isset(&eq->doorbells, DOORBELL_UDB) || isset(&eq->doorbells, DOORBELL_UDBWC) || isset(&eq->doorbells, DOORBELL_WCWR)) { - uint32_t s_qpp = sc->sge.s_qpp; + uint32_t s_qpp = sc->sge.eq_s_qpp; uint32_t mask = (1 << s_qpp) - 1; volatile uint8_t *udb;
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