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grub2/0001-ieee1275-implement-FCP-methods-for-WWPN-and-LUNs.patch
Michael Chang da8194b45d Accepting request 928444 from home:michael-chang:branches:Base:System
- Remove openSUSE Tumbleweed specific handling for default grub
  distributor (bsc#1191198)
- Use /usr/lib/os-release as fallback (bsc#1191196)
  * grub2-default-distributor.patch
  * grub2-check-default.sh
- VUL-0: grub2: grub2-once uses fixed file name in /var/tmp (bsc#1190474)
  * grub2-once
  * grub2-once.service
- Fix unknown TPM error on buggy uefi firmware (bsc#1191504)
  * 0001-tpm-Pass-unknown-error-as-non-fatal-but-debug-print-.patch
- Fix error /boot/grub2/locale/POSIX.gmo not found (bsc#1189769)
  * 0001-Filter-out-POSIX-locale-for-translation.patch
- Fix error lvmid disk cannot be found after second disk added to the root
  volume group (bsc#1189874) (bsc#1071559)
  * 0001-ieee1275-implement-FCP-methods-for-WWPN-and-LUNs.patch
- Fix error in grub installation due to unnecessary requirement to support
  excessive device for the root logical volume (bsc#1184135)
  * 0001-disk-diskfilter-Use-nodes-in-logical-volume-s-segmen.patch
- Fix regression in reading xfs v4
  *0001-fs-xfs-Fix-unreadable-filesystem-with-v4-superblock.patch

OBS-URL: https://build.opensuse.org/request/show/928444
OBS-URL: https://build.opensuse.org/package/show/Base:System/grub2?expand=0&rev=396
2021-11-02 05:52:57 +00:00

147 lines
4.8 KiB
Diff

From a37d0cc089edd66ab35f1a27b0da09dd2f02deb3 Mon Sep 17 00:00:00 2001
From: Diego Domingos <diegodo@br.ibm.com>
Date: Mon, 24 Jun 2019 10:15:56 -0400
Subject: [PATCH] ieee1275: implement FCP methods for WWPN and LUNs
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.
---
grub-core/disk/ieee1275/ofdisk.c | 117 ++++++++++++++++++++++++++++++-
1 file changed, 116 insertions(+), 1 deletion(-)
diff --git a/grub-core/disk/ieee1275/ofdisk.c b/grub-core/disk/ieee1275/ofdisk.c
index ea7f78ac7..258a6e389 100644
--- a/grub-core/disk/ieee1275/ofdisk.c
+++ b/grub-core/disk/ieee1275/ofdisk.c
@@ -209,7 +209,122 @@ 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, k, l;
+ 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;
+
+ struct args_ret
+ {
+ grub_uint64_t addr;
+ grub_uint64_t len;
+ };
+
+ if(grub_ieee1275_open (alias->path, &ihandle))
+ {
+ grub_dprintf("disk", "failed to open the disk while iterating FCP disk path=%s\n", alias->path);
+ return;
+ }
+
+ /* Setup the fcp-targets method to call via pfw*/
+ INIT_IEEE1275_COMMON (&args_targets.common, "call-method", 2, 3);
+ args_targets.method = (grub_ieee1275_cell_t) "fcp-targets";
+ args_targets.ihandle = ihandle;
+
+ /* Setup the fcp-luns method to call via pfw */
+ INIT_IEEE1275_COMMON (&args_luns.common, "call-method", 4, 3);
+ args_luns.method = (grub_ieee1275_cell_t) "fcp-luns";
+ args_luns.ihandle = ihandle;
+
+ if (IEEE1275_CALL_ENTRY_FN (&args_targets) == -1)
+ {
+ grub_dprintf("disk", "failed to get the targets while iterating FCP disk path=%s\n", alias->path);
+ grub_ieee1275_close(ihandle);
+ return;
+ }
+
+ buf = grub_malloc (grub_strlen (alias->path) + 32 + 32);
+
+ if (!buf)
+ {
+ grub_ieee1275_close(ihandle);
+ return;
+ }
+
+ bufptr = grub_stpcpy (buf, alias->path);
+
+ /* Iterate over entries returned by pfw. Each entry contains a
+ * pointer to wwpn table and his length. */
+ struct args_ret *targets_table = (struct args_ret *)(args_targets.table);
+ for (i=0; i< args_targets.nentries; i++)
+ {
+ ptr_targets = (grub_uint64_t*)(grub_uint32_t) targets_table[i].addr;
+ /* Iterate over all wwpns in given table */
+ for(k=0;k<targets_table[i].len;k++)
+ {
+ 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++);
+ /* Get the luns for given wwpn target */
+ if (IEEE1275_CALL_ENTRY_FN (&args_luns) == -1)
+ {
+ grub_dprintf("disk", "failed to get the LUNS while iterating FCP disk path=%s\n", buf);
+ grub_ieee1275_close (ihandle);
+ grub_free (buf);
+ return;
+ }
+
+ struct args_ret *luns_table = (struct args_ret *)(args_luns.table);
+
+ /* Iterate over all LUNs */
+ for(j=0;j<args_luns.nentries; j++)
+ {
+ ptr_luns = (grub_uint64_t*) (grub_uint32_t) luns_table[j].addr;
+ for(l=0;l<luns_table[j].len;l++)
+ {
+ grub_snprintf (&bufptr[pos], 30, ",%" PRIxGRUB_UINT64_T,
+ *ptr_luns++);
+ dev_iterate_real(buf,buf);
+ }
+ }
+
+ }
+ }
+
+ 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
--
2.31.1