James/linux-scsi,
The following patch for megaraid_sas fixes the LD/VF affiliation policy parsing
code to account for LD targetId's and Hidden LD's (not yet affiliated with any
Virtual Functions).
Signed-off-by: Adam Radford <aradf...@gmail.com>
---
drivers/scsi/megaraid/megaraid_sas.h | 1 +
drivers/scsi/megaraid/megaraid_sas_base.c | 88 ++++++++++++++++++++++---------
2 files changed, 64 insertions(+), 25 deletions(-)
diff --git a/drivers/scsi/megaraid/megaraid_sas.h
b/drivers/scsi/megaraid/megaraid_sas.h
index 7d722fb..2e2fcb2 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -1659,6 +1659,7 @@ struct MR_LD_VF_AFFILIATION {
/* Plasma 1.11 FW backward compatibility structures */
#define IOV_111_OFFSET 0x7CE
#define MAX_VIRTUAL_FUNCTIONS 8
+#define MR_LD_ACCESS_HIDDEN 15
struct IOV_111 {
u8 maxVFsSupported;
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c
b/drivers/scsi/megaraid/megaraid_sas_base.c
index 112799b..8f62b30 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -1836,7 +1836,7 @@ static int megasas_get_ld_vf_affiliation(struct
megasas_instance *instance,
struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL;
dma_addr_t new_affiliation_h;
dma_addr_t new_affiliation_111_h;
- int ld, retval = 0;
+ int ld, i, j, retval = 0, found = 0, doscan = 0;
u8 thisVf;
cmd = megasas_get_cmd(instance);
@@ -1944,14 +1944,6 @@ static int megasas_get_ld_vf_affiliation(struct
megasas_instance *instance,
if (!initial) {
if (instance->PlasmaFW111) {
- if (!new_affiliation_111->vdCount) {
- printk(KERN_WARNING "megasas: SR-IOV: Got new "
- "LD/VF affiliation for passive path "
- "for scsi%d.\n",
- instance->host->host_no);
- retval = 1;
- goto out;
- }
thisVf = new_affiliation_111->thisVf;
for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++)
if
(instance->vf_affiliation_111->map[ld].policy[thisVf] !=
new_affiliation_111->map[ld].policy[thisVf]) {
@@ -1977,29 +1969,75 @@ static int megasas_get_ld_vf_affiliation(struct
megasas_instance *instance,
newmap = new_affiliation->map;
savedmap = instance->vf_affiliation->map;
thisVf = new_affiliation->thisVf;
- for (ld = 0 ; ld < new_affiliation->ldCount; ld++) {
- if (savedmap->policy[thisVf] !=
- newmap->policy[thisVf]) {
- printk(KERN_WARNING "megasas: SR-IOV: "
- "Got new LD/VF affiliation "
- "for scsi%d.\n",
- instance->host->host_no);
- memcpy(instance->vf_affiliation,
- new_affiliation,
- new_affiliation->size);
- retval = 1;
+ for (i = 0 ; i < new_affiliation->ldCount; i++) {
+ found = 0;
+ for (j = 0;
+ j < instance->vf_affiliation->ldCount;
+ j++) {
+ if (newmap->ref.targetId ==
+ savedmap->ref.targetId) {
+ found = 1;
+ if (newmap->policy[thisVf] !=
+ savedmap->policy[thisVf]) {
+ doscan = 1;
+ goto out;
+ }
+ }
+ savedmap =
+ (struct MR_LD_VF_MAP *)
+ ((unsigned char *)savedmap +
+ savedmap->size);
+ }
+ if (!found && newmap->policy[thisVf] !=
+ MR_LD_ACCESS_HIDDEN) {
+ doscan = 1;
goto out;
}
- savedmap = (struct MR_LD_VF_MAP *)
- ((unsigned char *)savedmap +
- savedmap->size);
newmap = (struct MR_LD_VF_MAP *)
- ((unsigned char *)newmap +
- newmap->size);
+ ((unsigned char *)newmap + newmap->size);
+ }
+
+ newmap = new_affiliation->map;
+ savedmap = instance->vf_affiliation->map;
+
+ for (i = 0 ; i < instance->vf_affiliation->ldCount;
+ i++) {
+ found = 0;
+ for (j = 0 ; j < new_affiliation->ldCount;
+ j++) {
+ if (savedmap->ref.targetId ==
+ newmap->ref.targetId) {
+ found = 1;
+ if (savedmap->policy[thisVf] !=
+ newmap->policy[thisVf]) {
+ doscan = 1;
+ goto out;
+ }
+ }
+ newmap = (struct MR_LD_VF_MAP *)
+ ((unsigned char *)newmap +
+ newmap->size);
+ }
+ if (!found && savedmap->policy[thisVf] !=
+ MR_LD_ACCESS_HIDDEN) {
+ doscan = 1;
+ goto out;
+ }
+ savedmap = (struct MR_LD_VF_MAP *)
+ ((unsigned char *)savedmap +
+ savedmap->size);
}
}
}
out:
+ if (doscan) {
+ printk(KERN_WARNING "megasas: SR-IOV: Got new LD/VF "
+ "affiliation for scsi%d.\n", instance->host->host_no);
+ memcpy(instance->vf_affiliation, new_affiliation,
+ new_affiliation->size);
+ retval = 1;
+ }
+
if (new_affiliation) {
if (instance->PlasmaFW111)
pci_free_consistent(instance->pdev,
--
1.7.11.7
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