Author: cem Date: Tue Jul 12 21:52:26 2016 New Revision: 302677 URL: https://svnweb.freebsd.org/changeset/base/302677
Log: ioat(4): Print some more useful information about the ring from ddb "show ioat" Modified: head/sys/dev/ioat/ioat.c Modified: head/sys/dev/ioat/ioat.c ============================================================================== --- head/sys/dev/ioat/ioat.c Tue Jul 12 21:49:08 2016 (r302676) +++ head/sys/dev/ioat/ioat.c Tue Jul 12 21:52:26 2016 (r302677) @@ -2203,7 +2203,7 @@ DB_SHOW_COMMAND(ioat, db_show_ioat) if (!have_addr) goto usage; idx = (unsigned)addr; - if (addr >= ioat_channel_index) + if (idx >= ioat_channel_index) goto usage; sc = ioat_channel[idx]; @@ -2251,6 +2251,35 @@ DB_SHOW_COMMAND(ioat, db_show_ioat) db_printf(" last_seen: 0x%lx\n", sc->last_seen); db_printf(" ring: %p\n", sc->ring); + db_printf(" ring[%u] (tail):\n", sc->tail % + (1 << sc->ring_size_order)); + db_printf(" id: %u\n", ioat_get_ring_entry(sc, sc->tail)->id); + db_printf(" addr: 0x%lx\n", + ioat_get_ring_entry(sc, sc->tail)->hw_desc_bus_addr); + db_printf(" next: 0x%lx\n", + ioat_get_ring_entry(sc, sc->tail)->u.generic->next); + + db_printf(" ring[%u] (head - 1):\n", (sc->head - 1) % + (1 << sc->ring_size_order)); + db_printf(" id: %u\n", ioat_get_ring_entry(sc, sc->head - 1)->id); + db_printf(" addr: 0x%lx\n", + ioat_get_ring_entry(sc, sc->head - 1)->hw_desc_bus_addr); + db_printf(" next: 0x%lx\n", + ioat_get_ring_entry(sc, sc->head - 1)->u.generic->next); + + db_printf(" ring[%u] (head):\n", (sc->head) % + (1 << sc->ring_size_order)); + db_printf(" id: %u\n", ioat_get_ring_entry(sc, sc->head)->id); + db_printf(" addr: 0x%lx\n", + ioat_get_ring_entry(sc, sc->head)->hw_desc_bus_addr); + db_printf(" next: 0x%lx\n", + ioat_get_ring_entry(sc, sc->head)->u.generic->next); + + for (idx = 0; idx < (1 << sc->ring_size_order); idx++) + if ((*sc->comp_update & IOAT_CHANSTS_COMPLETED_DESCRIPTOR_MASK) + == ioat_get_ring_entry(sc, idx)->hw_desc_bus_addr) + db_printf(" ring[%u] == hardware tail\n", idx); + db_printf(" cleanup_lock: "); db_show_lock(&sc->cleanup_lock); _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"