1d842d2b55
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91 lines
2.9 KiB
Diff
91 lines
2.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Diego Domingos <diegodo@br.ibm.com>
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Date: Mon, 14 Dec 2020 17:45:28 +0100
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Subject: [PATCH] ieee1275/powerpc: implements fibre channel discovery for
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ofpathname
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grub-ofpathname doesn't work with fibre channel because there is no
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function currently implemented for it.
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This patch enables it by prividing a function that looks for the port
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name, building the entire path for OF devices.
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Signed-off-by: Diego Domingos <diegodo@br.ibm.com>
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---
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grub-core/osdep/linux/ofpath.c | 49 ++++++++++++++++++++++++++++++++++++++++++
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1 file changed, 49 insertions(+)
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diff --git a/grub-core/osdep/linux/ofpath.c b/grub-core/osdep/linux/ofpath.c
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index a6153d35954..0f5d54e9f2d 100644
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--- a/grub-core/osdep/linux/ofpath.c
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+++ b/grub-core/osdep/linux/ofpath.c
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@@ -350,6 +350,38 @@ of_path_of_ide(const char *sys_devname __attribute__((unused)), const char *devi
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return ret;
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}
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+
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+static void
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+of_fc_port_name(const char *path, const char *subpath, char *port_name)
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+{
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+ char *bname, *basepath, *p;
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+ int fd;
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+
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+ bname = xmalloc(sizeof(char)*150);
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+ basepath = xmalloc(strlen(path));
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+
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+ /* Generate the path to get port name information from the drive */
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+ strncpy(basepath,path,subpath-path);
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+ basepath[subpath-path-1] = '\0';
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+ p = get_basename(basepath);
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+ snprintf(bname,sizeof(char)*150,"%s/fc_transport/%s/port_name",basepath,p);
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+
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+ /* Read the information from the port name */
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+ fd = open (bname, O_RDONLY);
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+ if (fd < 0)
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+ grub_util_error (_("cannot open `%s': %s"), bname, strerror (errno));
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+
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+ if (read(fd,port_name,sizeof(char)*19) < 0)
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+ grub_util_error (_("cannot read `%s': %s"), bname, strerror (errno));
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+
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+ sscanf(port_name,"0x%s",port_name);
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+
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+ close(fd);
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+
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+ free(bname);
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+ free(basepath);
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+}
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+
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#ifdef __sparc__
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static char *
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of_path_of_nvme(const char *sys_devname __attribute__((unused)),
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@@ -577,6 +609,16 @@ of_path_of_scsi(const char *sys_devname __attribute__((unused)), const char *dev
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digit_string = trailing_digits (device);
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if (strncmp (of_path, "/vdevice/", sizeof ("/vdevice/") - 1) == 0)
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{
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+ if(strstr(of_path,"vfc-client"))
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+ {
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+ char * port_name = xmalloc(sizeof(char)*17);
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+ of_fc_port_name(sysfs_path, p, port_name);
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+
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+ snprintf(disk,sizeof(disk),"/%s@%s", disk_name, port_name);
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+ free(port_name);
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+ }
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+ else
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+ {
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unsigned long id = 0x8000 | (tgt << 8) | (bus << 5) | lun;
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if (*digit_string == '\0')
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{
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@@ -590,6 +632,13 @@ of_path_of_scsi(const char *sys_devname __attribute__((unused)), const char *dev
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snprintf(disk, sizeof (disk),
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"/%s@%04lx000000000000:%c", disk_name, id, 'a' + (part - 1));
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}
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+ }
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+ } else if (strstr(of_path,"fibre-channel")||(strstr(of_path,"vfc-client"))){
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+ char * port_name = xmalloc(sizeof(char)*17);
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+ of_fc_port_name(sysfs_path, p, port_name);
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+
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+ snprintf(disk,sizeof(disk),"/%s@%s", disk_name, port_name);
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+ free(port_name);
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}
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else
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{
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