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authorIan Moffett <ian@osmora.org>2025-05-26 01:49:45 -0400
committerIan Moffett <ian@osmora.org>2025-05-26 01:50:28 -0400
commit08d925bce8a18361655a56bf5b38d6f9e9134b8a (patch)
tree0d5f58926f6b935e5f75d3eee5c6da3c05498e52 /sys/dev/ic
parentd2ae9910bd6d5d4d2bd79cd2c835d6ca1a64364c (diff)
kernel: ahci: Detect max SATA sector count
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys/dev/ic')
-rw-r--r--sys/dev/ic/ahci.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/dev/ic/ahci.c b/sys/dev/ic/ahci.c
index d88274a..669b936 100644
--- a/sys/dev/ic/ahci.c
+++ b/sys/dev/ic/ahci.c
@@ -435,6 +435,7 @@ ahci_identify(struct ahci_hba *hba, struct hba_device *dp)
struct ahci_cmd_hdr *cmdhdr;
struct ahci_cmdtab *cmdtbl;
struct ahci_fis_h2d *fis;
+ uint16_t *p;
int cmdslot, status;
buf = vm_alloc_frame(1);
@@ -475,6 +476,9 @@ ahci_identify(struct ahci_hba *hba, struct hba_device *dp)
}
ahci_dump_identity(PHYS_TO_VIRT(buf));
+ p = (uint16_t *)PHYS_TO_VIRT(buf);
+ dp->nlba = (p[61] << 16) | p[60];
+ pr_trace("max block size: %d\n", dp->nlba);
done:
vm_free_frame(buf, 1);
return status;