From: timor Date: Wed, 21 Mar 2018 15:35:20 +0000 (+0100) Subject: Add support for nvme disk detection X-Git-Tag: zfs-0.7.9~23 X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=6e627cc46819aa7c5e612417866c4210a28359b1;p=zfs Add support for nvme disk detection This treats /dev/nvme.. devices the same way as /dev/sd... devices. The motivation behind this is that whole disk detection did not work on nvme SSDs without that, because it DKC_UNKNOWN was returned for such devices. Perhaps there should be a separate DKC_ type for this, but I don't know enough about the code to know the implications of that. Reviewed-by: Don Brady Reviewed-by: Brian Behlendorf Signed-off-by: timor Closes #7304 --- diff --git a/lib/libefi/rdwr_efi.c b/lib/libefi/rdwr_efi.c index e9fb15ee2..7935047eb 100644 --- a/lib/libefi/rdwr_efi.c +++ b/lib/libefi/rdwr_efi.c @@ -300,6 +300,20 @@ efi_get_info(int fd, struct dk_cinfo *dki_info) rval = sscanf(dev_path, "/dev/loop%[0-9]p%hu", dki_info->dki_dname + 4, &dki_info->dki_partition); + } else if ((strncmp(dev_path, "/dev/nvme", 9) == 0)) { + strcpy(dki_info->dki_cname, "nvme"); + dki_info->dki_ctype = DKC_SCSI_CCS; + strcpy(dki_info->dki_dname, "nvme"); + (void) sscanf(dev_path, "/dev/nvme%[0-9]", + dki_info->dki_dname + 4); + size_t controller_length = strlen( + dki_info->dki_dname); + strcpy(dki_info->dki_dname + controller_length, + "n"); + rval = sscanf(dev_path, + "/dev/nvme%*[0-9]n%[0-9]p%hu", + dki_info->dki_dname + controller_length + 1, + &dki_info->dki_partition); } else { strcpy(dki_info->dki_dname, "unknown"); strcpy(dki_info->dki_cname, "unknown");