Date: Mon, 14 Nov 2016 03:04:54 +0000 (UTC) From: Sepherosa Ziehau <sephe@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: r308621 - stable/11/sys/dev/hyperv/vmbus Message-ID: <201611140304.uAE34shw045058@repo.freebsd.org>
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Author: sephe Date: Mon Nov 14 03:04:54 2016 New Revision: 308621 URL: https://svnweb.freebsd.org/changeset/base/308621 Log: MFC 307952,307953,308278 307952 hyperv/vmbus: Add missing white space. Submitted by: QianYue You <t-youqi microsoft com> Sponsored by: Microsoft 307953 hyperv/vmbus: Implement vmbus_chan_printf. And use it for vmbus channel logging, which can log the channel owner's name properly, instead of vmbus0. Submitted by: QianYue You <t-youqi microsoft com> Sponsored by: Microsoft 308278 hyperv/vmbus: Reset ch_dev, once the child is deleted. So it will not be mis-used later on, e.g. in vmbus_chan_printf(). Submitted by: dexuan Reported by: dexuan Sponsored by: Microsoft Modified: stable/11/sys/dev/hyperv/vmbus/vmbus.c stable/11/sys/dev/hyperv/vmbus/vmbus_chan.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/dev/hyperv/vmbus/vmbus.c ============================================================================== --- stable/11/sys/dev/hyperv/vmbus/vmbus.c Mon Nov 14 03:01:30 2016 (r308620) +++ stable/11/sys/dev/hyperv/vmbus/vmbus.c Mon Nov 14 03:04:54 2016 (r308621) @@ -863,7 +863,7 @@ vmbus_intr_setup(struct vmbus_softc *sc) device_printf(sc->vmbus_dev, "cannot find free IDT vector\n"); return ENXIO; } - if(bootverbose) { + if (bootverbose) { device_printf(sc->vmbus_dev, "vmbus IDT vector %d\n", sc->vmbus_idtvec); } @@ -954,6 +954,7 @@ vmbus_delete_child(struct vmbus_channel if (chan->ch_dev != NULL) { error = device_delete_child(chan->ch_vmbus->vmbus_dev, chan->ch_dev); + chan->ch_dev = NULL; } mtx_unlock(&Giant); return (error); Modified: stable/11/sys/dev/hyperv/vmbus/vmbus_chan.c ============================================================================== --- stable/11/sys/dev/hyperv/vmbus/vmbus_chan.c Mon Nov 14 03:01:30 2016 (r308620) +++ stable/11/sys/dev/hyperv/vmbus/vmbus_chan.c Mon Nov 14 03:04:54 2016 (r308621) @@ -30,6 +30,7 @@ __FBSDID("$FreeBSD$"); #include <sys/param.h> +#include <sys/bus.h> #include <sys/kernel.h> #include <sys/lock.h> #include <sys/malloc.h> @@ -39,6 +40,7 @@ __FBSDID("$FreeBSD$"); #include <sys/systm.h> #include <machine/atomic.h> +#include <machine/stdarg.h> #include <dev/hyperv/include/hyperv_busdma.h> #include <dev/hyperv/vmbus/hyperv_var.h> @@ -90,6 +92,9 @@ static void vmbus_chan_msgproc_chresci struct vmbus_softc *, const struct vmbus_message *); +static int vmbus_chan_printf(const struct vmbus_channel *, + const char *, ...) __printflike(2, 3); + /* * Vmbus channel message processing. */ @@ -304,7 +309,7 @@ vmbus_chan_open(struct vmbus_channel *ch PAGE_SIZE, 0, txbr_size + rxbr_size, &chan->ch_bufring_dma, BUS_DMA_WAITOK); if (chan->ch_bufring == NULL) { - device_printf(chan->ch_dev, "bufring allocation failed\n"); + vmbus_chan_printf(chan, "bufring allocation failed\n"); return (ENOMEM); } @@ -336,7 +341,7 @@ vmbus_chan_open_br(struct vmbus_channel uint8_t *br; if (udlen > VMBUS_CHANMSG_CHOPEN_UDATA_SIZE) { - device_printf(sc->vmbus_dev, + vmbus_chan_printf(chan, "invalid udata len %d for chan%u\n", udlen, chan->ch_id); return EINVAL; } @@ -386,7 +391,7 @@ vmbus_chan_open_br(struct vmbus_channel error = vmbus_chan_gpadl_connect(chan, cbr->cbr_paddr, txbr_size + rxbr_size, &chan->ch_bufring_gpadl); if (error) { - device_printf(sc->vmbus_dev, + vmbus_chan_printf(chan, "failed to connect bufring GPADL to chan%u\n", chan->ch_id); goto failed; } @@ -402,7 +407,7 @@ vmbus_chan_open_br(struct vmbus_channel */ mh = vmbus_msghc_get(sc, sizeof(*req)); if (mh == NULL) { - device_printf(sc->vmbus_dev, + vmbus_chan_printf(chan, "can not get msg hypercall for chopen(chan%u)\n", chan->ch_id); error = ENXIO; @@ -421,7 +426,7 @@ vmbus_chan_open_br(struct vmbus_channel error = vmbus_msghc_exec(sc, mh); if (error) { - device_printf(sc->vmbus_dev, + vmbus_chan_printf(chan, "chopen(chan%u) msg hypercall exec failed: %d\n", chan->ch_id, error); vmbus_msghc_put(sc, mh); @@ -436,13 +441,12 @@ vmbus_chan_open_br(struct vmbus_channel if (status == 0) { if (bootverbose) { - device_printf(sc->vmbus_dev, "chan%u opened\n", - chan->ch_id); + vmbus_chan_printf(chan, "chan%u opened\n", chan->ch_id); } return 0; } - device_printf(sc->vmbus_dev, "failed to open chan%u\n", chan->ch_id); + vmbus_chan_printf(chan, "failed to open chan%u\n", chan->ch_id); error = ENXIO; failed: @@ -485,7 +489,7 @@ vmbus_chan_gpadl_connect(struct vmbus_ch * We don't support multiple GPA ranges. */ if (range_len > UINT16_MAX) { - device_printf(sc->vmbus_dev, "GPA too large, %d pages\n", + vmbus_chan_printf(chan, "GPA too large, %d pages\n", page_count); return EOPNOTSUPP; } @@ -514,8 +518,8 @@ vmbus_chan_gpadl_connect(struct vmbus_ch chm_range.gpa_page[cnt]); mh = vmbus_msghc_get(sc, reqsz); if (mh == NULL) { - device_printf(sc->vmbus_dev, - "can not get msg hypercall for gpadl->chan%u\n", + vmbus_chan_printf(chan, + "can not get msg hypercall for gpadl_conn(chan%u)\n", chan->ch_id); return EIO; } @@ -533,8 +537,8 @@ vmbus_chan_gpadl_connect(struct vmbus_ch error = vmbus_msghc_exec(sc, mh); if (error) { - device_printf(sc->vmbus_dev, - "gpadl->chan%u msg hypercall exec failed: %d\n", + vmbus_chan_printf(chan, + "gpadl_conn(chan%u) msg hypercall exec failed: %d\n", chan->ch_id, error); vmbus_msghc_put(sc, mh); return error; @@ -570,13 +574,13 @@ vmbus_chan_gpadl_connect(struct vmbus_ch vmbus_msghc_put(sc, mh); if (status != 0) { - device_printf(sc->vmbus_dev, "gpadl->chan%u failed: " - "status %u\n", chan->ch_id, status); + vmbus_chan_printf(chan, "gpadl_conn(chan%u) failed: %u\n", + chan->ch_id, status); return EIO; } else { if (bootverbose) { - device_printf(sc->vmbus_dev, "gpadl->chan%u " - "succeeded\n", chan->ch_id); + vmbus_chan_printf(chan, + "gpadl_conn(chan%u) succeeded\n", chan->ch_id); } } return 0; @@ -595,8 +599,8 @@ vmbus_chan_gpadl_disconnect(struct vmbus mh = vmbus_msghc_get(sc, sizeof(*req)); if (mh == NULL) { - device_printf(sc->vmbus_dev, - "can not get msg hypercall for gpa x->chan%u\n", + vmbus_chan_printf(chan, + "can not get msg hypercall for gpadl_disconn(chan%u)\n", chan->ch_id); return EBUSY; } @@ -608,8 +612,8 @@ vmbus_chan_gpadl_disconnect(struct vmbus error = vmbus_msghc_exec(sc, mh); if (error) { - device_printf(sc->vmbus_dev, - "gpa x->chan%u msg hypercall exec failed: %d\n", + vmbus_chan_printf(chan, + "gpadl_disconn(chan%u) msg hypercall exec failed: %d\n", chan->ch_id, error); vmbus_msghc_put(sc, mh); return error; @@ -681,7 +685,7 @@ vmbus_chan_close_internal(struct vmbus_c */ mh = vmbus_msghc_get(sc, sizeof(*req)); if (mh == NULL) { - device_printf(sc->vmbus_dev, + vmbus_chan_printf(chan, "can not get msg hypercall for chclose(chan%u)\n", chan->ch_id); return; @@ -695,12 +699,12 @@ vmbus_chan_close_internal(struct vmbus_c vmbus_msghc_put(sc, mh); if (error) { - device_printf(sc->vmbus_dev, + vmbus_chan_printf(chan, "chclose(chan%u) msg hypercall exec failed: %d\n", chan->ch_id, error); return; } else if (bootverbose) { - device_printf(sc->vmbus_dev, "close chan%u\n", chan->ch_id); + vmbus_chan_printf(chan, "close chan%u\n", chan->ch_id); } /* @@ -890,13 +894,12 @@ vmbus_chan_recv(struct vmbus_channel *ch return (error); if (__predict_false(pkt.cph_hlen < VMBUS_CHANPKT_HLEN_MIN)) { - device_printf(chan->ch_dev, "invalid hlen %u\n", - pkt.cph_hlen); + vmbus_chan_printf(chan, "invalid hlen %u\n", pkt.cph_hlen); /* XXX this channel is dead actually. */ return (EIO); } if (__predict_false(pkt.cph_hlen > pkt.cph_tlen)) { - device_printf(chan->ch_dev, "invalid hlen %u and tlen %u\n", + vmbus_chan_printf(chan, "invalid hlen %u and tlen %u\n", pkt.cph_hlen, pkt.cph_tlen); /* XXX this channel is dead actually. */ return (EIO); @@ -933,13 +936,12 @@ vmbus_chan_recv_pkt(struct vmbus_channel return (error); if (__predict_false(pkt.cph_hlen < VMBUS_CHANPKT_HLEN_MIN)) { - device_printf(chan->ch_dev, "invalid hlen %u\n", - pkt.cph_hlen); + vmbus_chan_printf(chan, "invalid hlen %u\n", pkt.cph_hlen); /* XXX this channel is dead actually. */ return (EIO); } if (__predict_false(pkt.cph_hlen > pkt.cph_tlen)) { - device_printf(chan->ch_dev, "invalid hlen %u and tlen %u\n", + vmbus_chan_printf(chan, "invalid hlen %u and tlen %u\n", pkt.cph_hlen, pkt.cph_tlen); /* XXX this channel is dead actually. */ return (EIO); @@ -1082,8 +1084,8 @@ vmbus_chan_update_evtflagcnt(struct vmbu break; if (atomic_cmpset_int(flag_cnt_ptr, old_flag_cnt, flag_cnt)) { if (bootverbose) { - device_printf(sc->vmbus_dev, - "channel%u update cpu%d flag_cnt to %d\n", + vmbus_chan_printf(chan, + "chan%u update cpu%d flag_cnt to %d\n", chan->ch_id, chan->ch_cpuid, flag_cnt); } break; @@ -1154,11 +1156,6 @@ vmbus_chan_add(struct vmbus_channel *new return EINVAL; } - if (bootverbose) { - device_printf(sc->vmbus_dev, "chan%u subidx%u offer\n", - newchan->ch_id, newchan->ch_subidx); - } - mtx_lock(&sc->vmbus_prichan_lock); TAILQ_FOREACH(prichan, &sc->vmbus_prichans, ch_prilink) { /* @@ -1179,15 +1176,15 @@ vmbus_chan_add(struct vmbus_channel *new goto done; } else { mtx_unlock(&sc->vmbus_prichan_lock); - device_printf(sc->vmbus_dev, "duplicated primary " - "chan%u\n", newchan->ch_id); + device_printf(sc->vmbus_dev, + "duplicated primary chan%u\n", newchan->ch_id); return EINVAL; } } else { /* Sub-channel */ if (prichan == NULL) { mtx_unlock(&sc->vmbus_prichan_lock); - device_printf(sc->vmbus_dev, "no primary chan for " - "chan%u\n", newchan->ch_id); + device_printf(sc->vmbus_dev, + "no primary chan for chan%u\n", newchan->ch_id); return EINVAL; } /* @@ -1224,6 +1221,15 @@ done: mtx_lock(&sc->vmbus_chan_lock); vmbus_chan_ins_list(sc, newchan); mtx_unlock(&sc->vmbus_chan_lock); + + if (bootverbose) { + vmbus_chan_printf(newchan, "chan%u subidx%u offer\n", + newchan->ch_id, newchan->ch_subidx); + } + + /* Select default cpu for this channel. */ + vmbus_chan_cpu_default(newchan); + return 0; } @@ -1242,7 +1248,8 @@ vmbus_chan_cpu_set(struct vmbus_channel chan->ch_vcpuid = VMBUS_PCPU_GET(chan->ch_vmbus, vcpuid, cpu); if (bootverbose) { - printf("vmbus_chan%u: assigned to cpu%u [vcpu%u]\n", + vmbus_chan_printf(chan, + "chan%u assigned to cpu%u [vcpu%u]\n", chan->ch_id, chan->ch_cpuid, chan->ch_vcpuid); } } @@ -1338,9 +1345,6 @@ vmbus_chan_msgproc_choffer(struct vmbus_ TASK_INIT(&chan->ch_attach_task, 0, attach_fn, chan); TASK_INIT(&chan->ch_detach_task, 0, detach_fn, chan); - /* Select default cpu for this channel. */ - vmbus_chan_cpu_default(chan); - error = vmbus_chan_add(chan); if (error) { device_printf(sc->vmbus_dev, "add chan%u failed: %d\n", @@ -1365,11 +1369,6 @@ vmbus_chan_msgproc_chrescind(struct vmbu return; } - if (bootverbose) { - device_printf(sc->vmbus_dev, "chan%u rescinded\n", - note->chm_chanid); - } - /* * Find and remove the target channel from the channel list. */ @@ -1400,6 +1399,9 @@ vmbus_chan_msgproc_chrescind(struct vmbu mtx_unlock(&sc->vmbus_prichan_lock); } + if (bootverbose) + vmbus_chan_printf(chan, "chan%u rescinded\n", note->chm_chanid); + /* Detach the target channel. */ taskqueue_enqueue(chan->ch_mgmt_tq, &chan->ch_detach_task); } @@ -1414,8 +1416,9 @@ vmbus_chan_release(struct vmbus_channel mh = vmbus_msghc_get(sc, sizeof(*req)); if (mh == NULL) { - device_printf(sc->vmbus_dev, "can not get msg hypercall for " - "chfree(chan%u)\n", chan->ch_id); + vmbus_chan_printf(chan, + "can not get msg hypercall for chfree(chan%u)\n", + chan->ch_id); return (ENXIO); } @@ -1427,13 +1430,12 @@ vmbus_chan_release(struct vmbus_channel vmbus_msghc_put(sc, mh); if (error) { - device_printf(sc->vmbus_dev, "chfree(chan%u) failed: %d", + vmbus_chan_printf(chan, + "chfree(chan%u) msg hypercall exec failed: %d\n", chan->ch_id, error); } else { - if (bootverbose) { - device_printf(sc->vmbus_dev, "chan%u freed\n", - chan->ch_id); - } + if (bootverbose) + vmbus_chan_printf(chan, "chan%u freed\n", chan->ch_id); } return (error); } @@ -1714,6 +1716,26 @@ vmbus_chan_rx_empty(const struct vmbus_c return (vmbus_rxbr_empty(&chan->ch_rxbr)); } +static int +vmbus_chan_printf(const struct vmbus_channel *chan, const char *fmt, ...) +{ + va_list ap; + device_t dev; + int retval; + + if (chan->ch_dev == NULL || !device_is_alive(chan->ch_dev)) + dev = chan->ch_vmbus->vmbus_dev; + else + dev = chan->ch_dev; + + retval = device_print_prettyname(dev); + va_start(ap, fmt); + retval += vprintf(fmt, ap); + va_end(ap); + + return (retval); +} + void vmbus_chan_run_task(struct vmbus_channel *chan, struct task *task) {
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