[SCSI] qla2xxx: Enhanced the dump routines to capture multiple request and response...
Giridhar Malavali [Thu, 9 Feb 2012 19:15:33 +0000 (11:15 -0800)]
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
drivers/scsi/qla2xxx/qla_dbg.h
drivers/scsi/qla2xxx/qla_init.c

index 45cbf0b..cdf0617 100644 (file)
@@ -375,6 +375,77 @@ qla25xx_copy_fce(struct qla_hw_data *ha, void *ptr, uint32_t **last_chain)
 }
 
 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)
 {
        uint32_t cnt, que_idx;
@@ -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);
 
index 5f1b6d9..6b05cb1 100644 (file)
@@ -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 {
index 1fa067e..68555df 100644 (file)
@@ -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;