93 lines
3.1 KiB
Diff
93 lines
3.1 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Benjamin Marzinski <bmarzins@redhat.com>
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Date: Tue, 26 Jun 2018 17:04:57 -0500
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Subject: [PATCH] multipathd: add new protocol path wildcard
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This patch adds a new path wildcard 'P', that will print the path's
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protocol. For scsi devices, it will additionally print the transport
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protocol being used.
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Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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---
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libmultipath/print.c | 43 +++++++++++++++++++++++++++++++++++++++++++
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libmultipath/print.h | 2 ++
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2 files changed, 45 insertions(+)
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diff --git a/libmultipath/print.c b/libmultipath/print.c
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index 222d270..ecfcb48 100644
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--- a/libmultipath/print.c
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+++ b/libmultipath/print.c
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@@ -638,6 +638,48 @@ snprint_path_failures(char * buff, size_t len, const struct path * pp)
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return snprint_int(buff, len, pp->failcount);
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}
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+/* if you add a protocol string bigger than "scsi:unspec" you must
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+ * also change PROTOCOL_BUF_SIZE */
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+int
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+snprint_path_protocol(char * buff, size_t len, const struct path * pp)
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+{
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+ switch (pp->bus) {
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+ case SYSFS_BUS_SCSI:
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+ switch (pp->sg_id.proto_id) {
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+ case SCSI_PROTOCOL_FCP:
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+ return snprintf(buff, len, "scsi:fcp");
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+ case SCSI_PROTOCOL_SPI:
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+ return snprintf(buff, len, "scsi:spi");
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+ case SCSI_PROTOCOL_SSA:
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+ return snprintf(buff, len, "scsi:ssa");
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+ case SCSI_PROTOCOL_SBP:
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+ return snprintf(buff, len, "scsi:sbp");
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+ case SCSI_PROTOCOL_SRP:
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+ return snprintf(buff, len, "scsi:srp");
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+ case SCSI_PROTOCOL_ISCSI:
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+ return snprintf(buff, len, "scsi:iscsi");
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+ case SCSI_PROTOCOL_SAS:
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+ return snprintf(buff, len, "scsi:sas");
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+ case SCSI_PROTOCOL_ADT:
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+ return snprintf(buff, len, "scsi:adt");
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+ case SCSI_PROTOCOL_ATA:
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+ return snprintf(buff, len, "scsi:ata");
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+ case SCSI_PROTOCOL_UNSPEC:
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+ default:
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+ return snprintf(buff, len, "scsi:unspec");
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+ }
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+ case SYSFS_BUS_CCW:
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+ return snprintf(buff, len, "ccw");
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+ case SYSFS_BUS_CCISS:
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+ return snprintf(buff, len, "cciss");
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+ case SYSFS_BUS_NVME:
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+ return snprintf(buff, len, "nvme");
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+ case SYSFS_BUS_UNDEF:
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+ default:
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+ return snprintf(buff, len, "undef");
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+ }
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+}
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+
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struct multipath_data mpd[] = {
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{'n', "name", 0, snprint_name},
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{'w', "uuid", 0, snprint_multipath_uuid},
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@@ -687,6 +729,7 @@ struct path_data pd[] = {
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{'a', "host adapter", 0, snprint_host_adapter},
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{'G', "foreign", 0, snprint_path_foreign},
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{'0', "failures", 0, snprint_path_failures},
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+ {'P', "protocol", 0, snprint_path_protocol},
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{0, NULL, 0 , NULL}
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};
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diff --git a/libmultipath/print.h b/libmultipath/print.h
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index 608b7d5..e2fb865 100644
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--- a/libmultipath/print.h
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+++ b/libmultipath/print.h
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@@ -133,6 +133,8 @@ int snprint_host_wwnn (char *, size_t, const struct path *);
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int snprint_host_wwpn (char *, size_t, const struct path *);
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int snprint_tgt_wwnn (char *, size_t, const struct path *);
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int snprint_tgt_wwpn (char *, size_t, const struct path *);
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+#define PROTOCOL_BUF_SIZE sizeof("scsi:unspec")
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+int snprint_path_protocol(char *, size_t, const struct path *);
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void _print_multipath_topology (const struct gen_multipath * gmp,
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int verbosity);
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--
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2.7.4
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