/*
- * linux/drivers/s390/scsi/zfcp_qdio.c
+ * This file is part of the zfcp device driver for
+ * FCP adapters for IBM System z9 and zSeries.
*
- * FCP adapter driver for IBM eServer zSeries
- *
- * QDIO related routines
- *
- * (C) Copyright IBM Corp. 2002, 2004
- *
- * Authors:
- * Martin Peschke <mpeschke@de.ibm.com>
- * Raimund Schroeder <raimund.schroeder@de.ibm.com>
- * Wolfgang Taphorn
- * Heiko Carstens <heiko.carstens@de.ibm.com>
+ * (C) Copyright IBM Corp. 2002, 2006
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#define ZFCP_QDIO_C_REVISION "$Revision: 1.18 $"
-
#include "zfcp_ext.h"
static inline void zfcp_qdio_sbal_limit(struct zfcp_fsf_req *, int);
static qdio_handler_t zfcp_qdio_request_handler;
static qdio_handler_t zfcp_qdio_response_handler;
static int zfcp_qdio_handler_error_check(struct zfcp_adapter *,
- unsigned int,
- unsigned int, unsigned int);
+ unsigned int, unsigned int, unsigned int, int, int);
#define ZFCP_LOG_AREA ZFCP_LOG_AREA_QDIO
init_data->cdev = adapter->ccw_device;
init_data->q_format = QDIO_SCSI_QFMT;
- memcpy(init_data->adapter_name, &adapter->name, 8);
+ memcpy(init_data->adapter_name, zfcp_get_busid_by_adapter(adapter), 8);
+ ASCEBC(init_data->adapter_name, 8);
init_data->qib_param_field_format = 0;
init_data->qib_param_field = NULL;
init_data->input_slib_elements = NULL;
*
*/
static inline int
-zfcp_qdio_handler_error_check(struct zfcp_adapter *adapter,
- unsigned int status,
- unsigned int qdio_error, unsigned int siga_error)
+zfcp_qdio_handler_error_check(struct zfcp_adapter *adapter, unsigned int status,
+ unsigned int qdio_error, unsigned int siga_error,
+ int first_element, int elements_processed)
{
int retval = 0;
- if (ZFCP_LOG_CHECK(ZFCP_LOG_LEVEL_TRACE)) {
- if (status & QDIO_STATUS_INBOUND_INT) {
- ZFCP_LOG_TRACE("status is"
- " QDIO_STATUS_INBOUND_INT \n");
- }
- if (status & QDIO_STATUS_OUTBOUND_INT) {
- ZFCP_LOG_TRACE("status is"
- " QDIO_STATUS_OUTBOUND_INT \n");
- }
- } // if (ZFCP_LOG_CHECK(ZFCP_LOG_LEVEL_TRACE))
if (unlikely(status & QDIO_STATUS_LOOK_FOR_ERROR)) {
retval = -EIO;
- ZFCP_LOG_FLAGS(1, "QDIO_STATUS_LOOK_FOR_ERROR \n");
-
ZFCP_LOG_INFO("QDIO problem occurred (status=0x%x, "
"qdio_error=0x%x, siga_error=0x%x)\n",
status, qdio_error, siga_error);
- if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION) {
- ZFCP_LOG_FLAGS(2,
- "QDIO_STATUS_ACTIVATE_CHECK_CONDITION\n");
- }
- if (status & QDIO_STATUS_MORE_THAN_ONE_QDIO_ERROR) {
- ZFCP_LOG_FLAGS(2,
- "QDIO_STATUS_MORE_THAN_ONE_QDIO_ERROR\n");
- }
- if (status & QDIO_STATUS_MORE_THAN_ONE_SIGA_ERROR) {
- ZFCP_LOG_FLAGS(2,
- "QDIO_STATUS_MORE_THAN_ONE_SIGA_ERROR\n");
- }
-
- if (siga_error & QDIO_SIGA_ERROR_ACCESS_EXCEPTION) {
- ZFCP_LOG_FLAGS(2, "QDIO_SIGA_ERROR_ACCESS_EXCEPTION\n");
- }
-
- if (siga_error & QDIO_SIGA_ERROR_B_BIT_SET) {
- ZFCP_LOG_FLAGS(2, "QDIO_SIGA_ERROR_B_BIT_SET\n");
- }
-
- switch (qdio_error) {
- case 0:
- ZFCP_LOG_FLAGS(3, "QDIO_OK");
- break;
- case SLSB_P_INPUT_ERROR:
- ZFCP_LOG_FLAGS(1, "SLSB_P_INPUT_ERROR\n");
- break;
- case SLSB_P_OUTPUT_ERROR:
- ZFCP_LOG_FLAGS(1, "SLSB_P_OUTPUT_ERROR\n");
- break;
- default:
- ZFCP_LOG_NORMAL("bug: unknown QDIO error 0x%x\n",
- qdio_error);
- break;
- }
- /* Restarting IO on the failed adapter from scratch */
- debug_text_event(adapter->erp_dbf, 1, "qdio_err");
+ zfcp_hba_dbf_event_qdio(adapter, status, qdio_error, siga_error,
+ first_element, elements_processed);
/*
+ * Restarting IO on the failed adapter from scratch.
* Since we have been using this adapter, it is save to assume
* that it is not failed but recoverable. The card seems to
* report link-up events by self-initiated queue shutdown.
first_element, elements_processed);
if (unlikely(zfcp_qdio_handler_error_check(adapter, status, qdio_error,
- siga_error)))
+ siga_error, first_element,
+ elements_processed)))
goto out;
/*
* we stored address of struct zfcp_adapter data structure
return;
}
+/**
+ * zfcp_qdio_reqid_check - checks for valid reqids or unsolicited status
+ */
+static int zfcp_qdio_reqid_check(struct zfcp_adapter *adapter,
+ unsigned long req_id)
+{
+ struct zfcp_fsf_req *fsf_req;
+ unsigned long flags;
+
+ debug_long_event(adapter->erp_dbf, 4, req_id);
+
+ spin_lock_irqsave(&adapter->req_list_lock, flags);
+ fsf_req = zfcp_reqlist_ismember(adapter, req_id);
+
+ if (!fsf_req) {
+ spin_unlock_irqrestore(&adapter->req_list_lock, flags);
+ ZFCP_LOG_NORMAL("error: unknown request id (%ld).\n", req_id);
+ zfcp_erp_adapter_reopen(adapter, 0);
+ return -EINVAL;
+ }
+
+ zfcp_reqlist_remove(adapter, req_id);
+ atomic_dec(&adapter->reqs_active);
+ spin_unlock_irqrestore(&adapter->req_list_lock, flags);
+
+ /* finish the FSF request */
+ zfcp_fsf_req_complete(fsf_req);
+
+ return 0;
+}
+
/*
* function: zfcp_qdio_response_handler
*
queue = &adapter->response_queue;
if (unlikely(zfcp_qdio_handler_error_check(adapter, status, qdio_error,
- siga_error)))
+ siga_error, first_element,
+ elements_processed)))
goto out;
/*
/* look for QDIO request identifiers in SB */
buffere = &buffer->element[buffere_index];
retval = zfcp_qdio_reqid_check(adapter,
- (void *) buffere->addr);
+ (unsigned long) buffere->addr);
if (retval) {
ZFCP_LOG_NORMAL("bug: unexpected inbound "
return;
}
-/*
- * function: zfcp_qdio_reqid_check
- *
- * purpose: checks for valid reqids or unsolicited status
- *
- * returns: 0 - valid request id or unsolicited status
- * !0 - otherwise
- */
-int
-zfcp_qdio_reqid_check(struct zfcp_adapter *adapter, void *sbale_addr)
-{
- struct zfcp_fsf_req *fsf_req;
- int retval = 0;
-
- /* invalid (per convention used in this driver) */
- if (unlikely(!sbale_addr)) {
- ZFCP_LOG_NORMAL("bug: invalid reqid\n");
- retval = -EINVAL;
- goto out;
- }
-
- /* valid request id and thus (hopefully :) valid fsf_req address */
- fsf_req = (struct zfcp_fsf_req *) sbale_addr;
-
- if (unlikely(adapter != fsf_req->adapter)) {
- ZFCP_LOG_NORMAL("bug: invalid reqid (fsf_req=%p, "
- "fsf_req->adapter=%p, adapter=%p)\n",
- fsf_req, fsf_req->adapter, adapter);
- retval = -EINVAL;
- goto out;
- }
-
- ZFCP_LOG_TRACE("fsf_req at %p, QTCB at %p\n", fsf_req, fsf_req->qtcb);
- if (likely(fsf_req->qtcb)) {
- ZFCP_LOG_TRACE("hex dump of QTCB:\n");
- ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_TRACE, (char *) fsf_req->qtcb,
- sizeof(struct fsf_qtcb));
- }
-
- /* finish the FSF request */
- zfcp_fsf_req_complete(fsf_req);
- out:
- return retval;
-}
-
/**
* zfcp_qdio_sbale_get - return pointer to SBALE of qdio_queue
* @queue: queue from which SBALE should be returned
sbale = zfcp_qdio_sbale_curr(fsf_req);
sbale->addr = addr;
sbale->length = length;
-
-#ifdef ZFCP_STAT_REQSIZES
- if (sbtype == SBAL_FLAGS0_TYPE_READ)
- zfcp_statistics_inc(&zfcp_data.read_sg_head, length);
- else zfcp_statistics_inc(&zfcp_data.write_sg_head, length);
-#endif
}
/**
/* assume that no other SBALEs are to follow in the same SBAL */
sbale = zfcp_qdio_sbale_curr(fsf_req);
sbale->flags |= SBAL_FLAGS_LAST_ENTRY;
-
out:
-#ifdef ZFCP_STAT_REQSIZES
- if (sbtype == SBAL_FLAGS0_TYPE_READ) {
- zfcp_statistics_inc(&zfcp_data.read_sguse_head, sg_count);
- zfcp_statistics_inc(&zfcp_data.read_req_head, bytes);
- } else {
- zfcp_statistics_inc(&zfcp_data.write_sguse_head, sg_count);
- zfcp_statistics_inc(&zfcp_data.write_req_head, bytes);
- }
-#endif
-
return bytes;
}
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