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Accepting request 638364 from home:michael-chang:bsc:1093145

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- ieee1275: implement FCP methods for WWPN and LUNs (bsc#1093145)
  * grub2-ieee1275-FCP-methods-for-WWPN-and-LUNs.patch

OBS-URL: https://build.opensuse.org/request/show/638364
OBS-URL: https://build.opensuse.org/package/show/Base:System/grub2?expand=0&rev=315
This commit is contained in:
Michael Chang 2018-09-27 06:40:53 +00:00 committed by Git OBS Bridge
parent 71b1f4f139
commit c6e18082c8
3 changed files with 126 additions and 0 deletions
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118
grub2-ieee1275-FCP-methods-for-WWPN-and-LUNs.patch Normal file
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@ -0,0 +1,118 @@
From: Diego Domingos <diegodo@linux.vnet.ibm.com>
Date: Fri, 10 Aug 2018 16:29:50 -0400
Subject: ieee1275: implement FCP methods for WWPN and LUNs
References: bsc#1093145
Patch-mainline: not yet
This patch enables the fcp-targets and fcp-luns methods which are
responsible to get WWPNs and LUNs for fibre channel devices.
Those methods are specially necessary if the boot directory and grub
installation are in different FCP disks, allowing the dev_iterate()
to find the WWPNs and LUNs when called by searchfs.uuid tool.
Signed-off-by: Diego Domingos <diegodo@linux.vnet.ibm.com>
---
grub-core/disk/ieee1275/ofdisk.c | 89 +++++++++++++++++++++++++++++++++++++++-
1 file changed, 88 insertions(+), 1 deletion(-)
diff --git a/grub-core/disk/ieee1275/ofdisk.c b/grub-core/disk/ieee1275/ofdisk.c
index 235c0fe..bb213f1 100644
--- a/grub-core/disk/ieee1275/ofdisk.c
+++ b/grub-core/disk/ieee1275/ofdisk.c
@@ -209,7 +209,94 @@ dev_iterate_real (const char *name, const char *path)
static void
dev_iterate (const struct grub_ieee1275_devalias *alias)
{
- if (grub_strcmp (alias->type, "vscsi") == 0)
+ if (grub_strcmp (alias->type, "fcp") == 0){
+
+ /* If we are dealing with fcp devices, we need
+ * to find the WWPNs and LUNs to iterate them */
+ grub_ieee1275_ihandle_t ihandle;
+ grub_uint64_t *ptr_targets, *ptr_luns;
+ unsigned int i, j, pos;
+ char *buf, *bufptr;
+
+ struct set_fcp_targets_args
+ {
+ struct grub_ieee1275_common_hdr common;
+ grub_ieee1275_cell_t method;
+ grub_ieee1275_cell_t ihandle;
+ grub_ieee1275_cell_t catch_result;
+ grub_ieee1275_cell_t nentries;
+ grub_ieee1275_cell_t table;
+ } args_targets;
+
+ struct set_fcp_luns_args
+ {
+ struct grub_ieee1275_common_hdr common;
+ grub_ieee1275_cell_t method;
+ grub_ieee1275_cell_t ihandle;
+ grub_ieee1275_cell_t wwpn_h;
+ grub_ieee1275_cell_t wwpn_l;
+ grub_ieee1275_cell_t catch_result;
+ grub_ieee1275_cell_t nentries;
+ grub_ieee1275_cell_t table;
+ } args_luns;
+
+ grub_ieee1275_open (alias->path, &ihandle);
+
+ INIT_IEEE1275_COMMON (&args_targets.common, "call-method", 2, 3);
+ args_targets.method = (grub_ieee1275_cell_t) "fcp-targets";
+ args_targets.ihandle = ihandle;
+ args_targets.table = 0;
+ args_targets.nentries = 0;
+
+ INIT_IEEE1275_COMMON (&args_luns.common, "call-method", 4, 3);
+ args_luns.method = (grub_ieee1275_cell_t) "fcp-luns";
+ args_luns.ihandle = ihandle;
+ args_luns.table = 0;
+ args_luns.nentries = 0;
+
+ IEEE1275_CALL_ENTRY_FN (&args_targets);
+
+ buf = grub_malloc (grub_strlen (alias->path) + 32 + 32);
+
+ if (!buf)
+ return;
+
+ bufptr = grub_stpcpy (buf, alias->path);
+
+ /* For each WWPN discovered we need to find his associated LUNS
+ * calling the fcp-luns method */
+ for (i=0; i< args_targets.nentries; i++){
+ ptr_targets = *(grub_uint64_t **) (args_targets.table + 4 + 8 * i);
+ while(*ptr_targets){
+ args_luns.wwpn_l = (grub_ieee1275_cell_t) (*ptr_targets);
+ args_luns.wwpn_h = (grub_ieee1275_cell_t) (*ptr_targets >> 32);
+ pos=grub_snprintf (bufptr, 32, "/disk@%" PRIxGRUB_UINT64_T,
+ *ptr_targets++);
+ IEEE1275_CALL_ENTRY_FN (&args_luns);
+ ptr_luns = *(grub_uint64_t **) (args_luns.table);
+
+ for(j=0;j<args_luns.nentries; j++){
+ ptr_luns = *(grub_uint64_t **) (args_luns.table + 4 + 8*j);
+
+ do {
+ if (*ptr_luns == 0){
+ dev_iterate_real(buf,buf);
+ continue;
+ }
+ grub_snprintf (&bufptr[pos], 30, ",%" PRIxGRUB_UINT64_T,
+ *ptr_luns++);
+ dev_iterate_real(buf,buf);
+ } while(*ptr_luns);
+ }
+ }
+ }
+
+ grub_ieee1275_close (ihandle);
+ grub_free (buf);
+ return;
+
+ }
+ else if (grub_strcmp (alias->type, "vscsi") == 0)
{
static grub_ieee1275_ihandle_t ihandle;
struct set_color_args

6
grub2.changes
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@ -1,3 +1,9 @@
-------------------------------------------------------------------
Wed Sep 26 08:01:05 UTC 2018 - mchang@suse.com
- ieee1275: implement FCP methods for WWPN and LUNs (bsc#1093145)
* grub2-ieee1275-FCP-methods-for-WWPN-and-LUNs.patch
-------------------------------------------------------------------
Thu Sep 13 08:38:01 UTC 2018 - mchang@suse.com

2
grub2.spec
View File

@ -258,6 +258,7 @@ Patch213: grub2-Fix-incorrect-netmask-on-ppc64.patch
Patch214: grub2-ieee1275-open-raw-mode.patch
Patch215: grub2-ppc64-cas-new-scope.patch
Patch216: 0001-ofnet-Initialize-structs-in-bootpath-parser.patch
Patch217: grub2-ieee1275-FCP-methods-for-WWPN-and-LUNs.patch
Patch233: grub2-use-stat-instead-of-udevadm-for-partition-lookup.patch
Patch234: fix-grub2-use-stat-instead-of-udevadm-for-partition-lookup-with-new-glibc.patch
Patch236: grub2-efi_gop-avoid-low-resolution.patch
@ -548,6 +549,7 @@ swap partition while in resuming
%patch214 -p1
%patch215 -p1
%patch216 -p1
%patch217 -p1
%patch233 -p1
%patch234 -p1
%patch236 -p1