From 050c9bb1361439e63dafb5f192f87b81d8ffbf4a Mon Sep 17 00:00:00 2001
From: Giridhar Malavali <giridhar.malavali@qlogic.com>
Date: Thu, 9 Feb 2012 11:15:33 -0800
Subject: [PATCH] [SCSI] qla2xxx: Enhanced the dump routines to capture
multiple request and response queues.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
drivers/scsi/qla2xxx/qla_dbg.c | 83 ++++++++++++++++++++++++++++++++-
drivers/scsi/qla2xxx/qla_dbg.h | 14 ++++++
drivers/scsi/qla2xxx/qla_init.c | 11 ++++-
3 files changed, 105 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index 45cbf0ba624d..cdf061763544 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -374,6 +374,77 @@ qla25xx_copy_fce(struct qla_hw_data *ha, void *ptr, uint32_t **last_chain)
return (char *)iter_reg + ntohl(fcec->size);
}
+static inline void *
+qla25xx_copy_mqueues(struct qla_hw_data *ha, void *ptr, uint32_t **last_chain)
+{
+ struct qla2xxx_mqueue_chain *q;
+ struct qla2xxx_mqueue_header *qh;
+ struct req_que *req;
+ struct rsp_que *rsp;
+ int que;
+
+ if (!ha->mqenable)
+ return ptr;
+
+ /* Request queues */
+ for (que = 1; que < ha->max_req_queues; que++) {
+ req = ha->req_q_map[que];
+ if (!req)
+ break;
+
+ /* Add chain. */
+ q = ptr;
+ *last_chain = &q->type;
+ q->type = __constant_htonl(DUMP_CHAIN_QUEUE);
+ q->chain_size = htonl(
+ sizeof(struct qla2xxx_mqueue_chain) +
+ sizeof(struct qla2xxx_mqueue_header) +
+ (req->length * sizeof(request_t)));
+ ptr += sizeof(struct qla2xxx_mqueue_chain);
+
+ /* Add header. */
+ qh = ptr;
+ qh->queue = __constant_htonl(TYPE_REQUEST_QUEUE);
+ qh->number = htonl(que);
+ qh->size = htonl(req->length * sizeof(request_t));
+ ptr += sizeof(struct qla2xxx_mqueue_header);
+
+ /* Add data. */
+ memcpy(ptr, req->ring, req->length * sizeof(request_t));
+ ptr += req->length * sizeof(request_t);
+ }
+
+ /* Response queues */
+ for (que = 1; que < ha->max_rsp_queues; que++) {
+ rsp = ha->rsp_q_map[que];
+ if (!rsp)
+ break;
+
+ /* Add chain. */
+ q = ptr;
+ *last_chain = &q->type;
+ q->type = __constant_htonl(DUMP_CHAIN_QUEUE);
+ q->chain_size = htonl(
+ sizeof(struct qla2xxx_mqueue_chain) +
+ sizeof(struct qla2xxx_mqueue_header) +
+ (rsp->length * sizeof(response_t)));
+ ptr += sizeof(struct qla2xxx_mqueue_chain);
+
+ /* Add header. */
+ qh = ptr;
+ qh->queue = __constant_htonl(TYPE_RESPONSE_QUEUE);
+ qh->number = htonl(que);
+ qh->size = htonl(rsp->length * sizeof(response_t));
+ ptr += sizeof(struct qla2xxx_mqueue_header);
+
+ /* Add data. */
+ memcpy(ptr, rsp->ring, rsp->length * sizeof(response_t));
+ ptr += rsp->length * sizeof(response_t);
+ }
+
+ return ptr;
+}
+
static inline void *
qla25xx_copy_mq(struct qla_hw_data *ha, void *ptr, uint32_t **last_chain)
{
@@ -1322,12 +1393,16 @@ qla25xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked)
nxt = qla24xx_copy_eft(ha, nxt);
/* Chain entries -- started with MQ. */
- qla25xx_copy_fce(ha, nxt_chain, &last_chain);
+ nxt_chain = qla25xx_copy_fce(ha, nxt_chain, &last_chain);
+ nxt_chain = qla25xx_copy_mqueues(ha, nxt_chain, &last_chain);
if (last_chain) {
ha->fw_dump->version |= __constant_htonl(DUMP_CHAIN_VARIANT);
*last_chain |= __constant_htonl(DUMP_CHAIN_LAST);
}
+ /* Adjust valid length. */
+ ha->fw_dump_len = (nxt_chain - (void *)ha->fw_dump);
+
qla25xx_fw_dump_failed_0:
qla2xxx_dump_post_process(base_vha, rval);
@@ -1636,12 +1711,16 @@ qla81xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked)
nxt = qla24xx_copy_eft(ha, nxt);
/* Chain entries -- started with MQ. */
- qla25xx_copy_fce(ha, nxt_chain, &last_chain);
+ nxt_chain = qla25xx_copy_fce(ha, nxt_chain, &last_chain);
+ nxt_chain = qla25xx_copy_mqueues(ha, nxt_chain, &last_chain);
if (last_chain) {
ha->fw_dump->version |= __constant_htonl(DUMP_CHAIN_VARIANT);
*last_chain |= __constant_htonl(DUMP_CHAIN_LAST);
}
+ /* Adjust valid length. */
+ ha->fw_dump_len = (nxt_chain - (void *)ha->fw_dump);
+
qla81xx_fw_dump_failed_0:
qla2xxx_dump_post_process(base_vha, rval);
diff --git a/drivers/scsi/qla2xxx/qla_dbg.h b/drivers/scsi/qla2xxx/qla_dbg.h
index 5f1b6d9c3dcb..6b05cb1d1874 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.h
+++ b/drivers/scsi/qla2xxx/qla_dbg.h
@@ -192,9 +192,23 @@ struct qla2xxx_mq_chain {
uint32_t qregs[4 * QLA_MQ_SIZE];
};
+struct qla2xxx_mqueue_header {
+ uint32_t queue;
+#define TYPE_REQUEST_QUEUE 0x1
+#define TYPE_RESPONSE_QUEUE 0x2
+ uint32_t number;
+ uint32_t size;
+};
+
+struct qla2xxx_mqueue_chain {
+ uint32_t type;
+ uint32_t chain_size;
+};
+
#define DUMP_CHAIN_VARIANT 0x80000000
#define DUMP_CHAIN_FCE 0x7FFFFAF0
#define DUMP_CHAIN_MQ 0x7FFFFAF1
+#define DUMP_CHAIN_QUEUE 0x7FFFFAF2
#define DUMP_CHAIN_LAST 0x80000000
struct qla2xxx_fw_dump {
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 1fa067e053d2..68555dfee6ac 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1270,8 +1270,17 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
mem_size = (ha->fw_memory_size - 0x100000 + 1) *
sizeof(uint32_t);
- if (ha->mqenable)
+ if (ha->mqenable) {
mq_size = sizeof(struct qla2xxx_mq_chain);
+ /*
+ * Allocate maximum buffer size for all queues.
+ * Resizing must be done at end-of-dump processing.
+ */
+ mq_size += ha->max_req_queues *
+ (req->length * sizeof(request_t));
+ mq_size += ha->max_rsp_queues *
+ (rsp->length * sizeof(response_t));
+ }
/* Allocate memory for Fibre Channel Event Buffer. */
if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha))
goto try_eft;
--
2.34.1