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68 lines
2.2 KiB
68 lines
2.2 KiB
2 months ago
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From 610fc2ee6fc09e828b14e8fa221b3f4f70fc7b2b Mon Sep 17 00:00:00 2001
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From: Mateusz Kusiak <mateusz.kusiak@intel.com>
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Date: Mon, 29 Apr 2024 15:07:18 +0200
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Subject: [PATCH 57/66] imsm: define RAID_10 attribute
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Add MPB_ATTRIB_RAID10_EXT attribute to support RAID 10
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with more than 4 drives.
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Allow more than 4 drives in imsm_orom_support_raid_disks_raid10().
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This is one of last patches for introducing R10D4+ to imsm.
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Only small adjustments in reshape behaviours are needed.
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Signed-off-by: Mateusz Kusiak <mateusz.kusiak@intel.com>
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Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
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---
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platform-intel.c | 3 ++-
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super-intel.c | 5 +++++
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2 files changed, 7 insertions(+), 1 deletion(-)
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diff --git a/platform-intel.c b/platform-intel.c
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index 40e8fb82..15a9fa5a 100644
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--- a/platform-intel.c
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+++ b/platform-intel.c
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@@ -76,7 +76,8 @@ static bool imsm_orom_support_raid_disks_count_raid5(const int raid_disks)
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static bool imsm_orom_support_raid_disks_count_raid10(const int raid_disks)
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{
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- if (raid_disks == 4)
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+ /* raid_disks count must be higher than 4 and even */
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+ if (raid_disks >= 4 && (raid_disks & 1) == 0)
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return true;
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return false;
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}
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diff --git a/super-intel.c b/super-intel.c
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index 4b168add..2d309316 100644
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--- a/super-intel.c
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+++ b/super-intel.c
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@@ -62,6 +62,8 @@
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#define MPB_ATTRIB_RAIDCNG __cpu_to_le32(0x00000020)
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/* supports expanded stripe sizes of 256K, 512K and 1MB */
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#define MPB_ATTRIB_EXP_STRIPE_SIZE __cpu_to_le32(0x00000040)
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+/* supports RAID10 with more than 4 drives */
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+#define MPB_ATTRIB_RAID10_EXT __cpu_to_le32(0x00000080)
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/* The OROM Support RST Caching of Volumes */
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#define MPB_ATTRIB_NVM __cpu_to_le32(0x02000000)
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@@ -89,6 +91,7 @@
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MPB_ATTRIB_RAID10 | \
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MPB_ATTRIB_RAID5 | \
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MPB_ATTRIB_EXP_STRIPE_SIZE | \
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+ MPB_ATTRIB_RAID10_EXT | \
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MPB_ATTRIB_BBM)
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/* Define attributes that are unused but not harmful */
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@@ -5552,6 +5555,8 @@ static void imsm_update_version_info(struct intel_super *super)
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break;
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case IMSM_T_RAID10:
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mpb->attributes |= MPB_ATTRIB_RAID10;
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+ if (map->num_members > 4)
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+ mpb->attributes |= MPB_ATTRIB_RAID10_EXT;
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break;
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}
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}
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--
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2.41.0
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