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path: root/drivers/scsi/lpfc/lpfc_debugfs.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_debugfs.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_debugfs.c4698
1 files changed, 4698 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
new file mode 100644
index 000000000..513edcb0c
--- /dev/null
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -0,0 +1,4698 @@
+/*******************************************************************
+ * This file is part of the Emulex Linux Device Driver for *
+ * Fibre Channel Host Bus Adapters. *
+ * Copyright (C) 2007-2015 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
+ * www.emulex.com *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. See the GNU General Public License for *
+ * more details, a copy of which can be found in the file COPYING *
+ * included with this package. *
+ *******************************************************************/
+
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/idr.h>
+#include <linux/interrupt.h>
+#include <linux/kthread.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+#include <linux/ctype.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_transport_fc.h>
+
+#include "lpfc_hw4.h"
+#include "lpfc_hw.h"
+#include "lpfc_sli.h"
+#include "lpfc_sli4.h"
+#include "lpfc_nl.h"
+#include "lpfc_disc.h"
+#include "lpfc_scsi.h"
+#include "lpfc.h"
+#include "lpfc_logmsg.h"
+#include "lpfc_crtn.h"
+#include "lpfc_vport.h"
+#include "lpfc_version.h"
+#include "lpfc_compat.h"
+#include "lpfc_debugfs.h"
+#include "lpfc_bsg.h"
+
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+/*
+ * debugfs interface
+ *
+ * To access this interface the user should:
+ * # mount -t debugfs none /sys/kernel/debug
+ *
+ * The lpfc debugfs directory hierarchy is:
+ * /sys/kernel/debug/lpfc/fnX/vportY
+ * where X is the lpfc hba function unique_id
+ * where Y is the vport VPI on that hba
+ *
+ * Debugging services available per vport:
+ * discovery_trace
+ * This is an ACSII readable file that contains a trace of the last
+ * lpfc_debugfs_max_disc_trc events that happened on a specific vport.
+ * See lpfc_debugfs.h for different categories of discovery events.
+ * To enable the discovery trace, the following module parameters must be set:
+ * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support
+ * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for
+ * EACH vport. X MUST also be a power of 2.
+ * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in
+ * lpfc_debugfs.h .
+ *
+ * slow_ring_trace
+ * This is an ACSII readable file that contains a trace of the last
+ * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA.
+ * To enable the slow ring trace, the following module parameters must be set:
+ * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support
+ * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for
+ * the HBA. X MUST also be a power of 2.
+ */
+static int lpfc_debugfs_enable = 1;
+module_param(lpfc_debugfs_enable, int, S_IRUGO);
+MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services");
+
+/* This MUST be a power of 2 */
+static int lpfc_debugfs_max_disc_trc;
+module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO);
+MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc,
+ "Set debugfs discovery trace depth");
+
+/* This MUST be a power of 2 */
+static int lpfc_debugfs_max_slow_ring_trc;
+module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO);
+MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc,
+ "Set debugfs slow ring trace depth");
+
+static int lpfc_debugfs_mask_disc_trc;
+module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO);
+MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
+ "Set debugfs discovery trace mask");
+
+#include <linux/debugfs.h>
+
+static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
+static unsigned long lpfc_debugfs_start_time = 0L;
+
+/* iDiag */
+static struct lpfc_idiag idiag;
+
+/**
+ * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer
+ * @vport: The vport to gather the log info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine gathers the lpfc discovery debugfs data from the @vport and
+ * dumps it to @buf up to @size number of bytes. It will start at the next entry
+ * in the log and process the log until the end of the buffer. Then it will
+ * gather from the beginning of the log and process until the current entry.
+ *
+ * Notes:
+ * Discovery logging will be disabled while while this routine dumps the log.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
+{
+ int i, index, len, enable;
+ uint32_t ms;
+ struct lpfc_debugfs_trc *dtp;
+ char *buffer;
+
+ buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL);
+ if (!buffer)
+ return 0;
+
+ enable = lpfc_debugfs_enable;
+ lpfc_debugfs_enable = 0;
+
+ len = 0;
+ index = (atomic_read(&vport->disc_trc_cnt) + 1) &
+ (lpfc_debugfs_max_disc_trc - 1);
+ for (i = index; i < lpfc_debugfs_max_disc_trc; i++) {
+ dtp = vport->disc_trc + i;
+ if (!dtp->fmt)
+ continue;
+ ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
+ snprintf(buffer,
+ LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
+ dtp->seq_cnt, ms, dtp->fmt);
+ len += snprintf(buf+len, size-len, buffer,
+ dtp->data1, dtp->data2, dtp->data3);
+ }
+ for (i = 0; i < index; i++) {
+ dtp = vport->disc_trc + i;
+ if (!dtp->fmt)
+ continue;
+ ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
+ snprintf(buffer,
+ LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
+ dtp->seq_cnt, ms, dtp->fmt);
+ len += snprintf(buf+len, size-len, buffer,
+ dtp->data1, dtp->data2, dtp->data3);
+ }
+
+ lpfc_debugfs_enable = enable;
+ kfree(buffer);
+
+ return len;
+}
+
+/**
+ * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer
+ * @phba: The HBA to gather the log info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine gathers the lpfc slow ring debugfs data from the @phba and
+ * dumps it to @buf up to @size number of bytes. It will start at the next entry
+ * in the log and process the log until the end of the buffer. Then it will
+ * gather from the beginning of the log and process until the current entry.
+ *
+ * Notes:
+ * Slow ring logging will be disabled while while this routine dumps the log.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
+{
+ int i, index, len, enable;
+ uint32_t ms;
+ struct lpfc_debugfs_trc *dtp;
+ char *buffer;
+
+ buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL);
+ if (!buffer)
+ return 0;
+
+ enable = lpfc_debugfs_enable;
+ lpfc_debugfs_enable = 0;
+
+ len = 0;
+ index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) &
+ (lpfc_debugfs_max_slow_ring_trc - 1);
+ for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) {
+ dtp = phba->slow_ring_trc + i;
+ if (!dtp->fmt)
+ continue;
+ ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
+ snprintf(buffer,
+ LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
+ dtp->seq_cnt, ms, dtp->fmt);
+ len += snprintf(buf+len, size-len, buffer,
+ dtp->data1, dtp->data2, dtp->data3);
+ }
+ for (i = 0; i < index; i++) {
+ dtp = phba->slow_ring_trc + i;
+ if (!dtp->fmt)
+ continue;
+ ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
+ snprintf(buffer,
+ LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
+ dtp->seq_cnt, ms, dtp->fmt);
+ len += snprintf(buf+len, size-len, buffer,
+ dtp->data1, dtp->data2, dtp->data3);
+ }
+
+ lpfc_debugfs_enable = enable;
+ kfree(buffer);
+
+ return len;
+}
+
+static int lpfc_debugfs_last_hbq = -1;
+
+/**
+ * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer
+ * @phba: The HBA to gather host buffer info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the host buffer queue info from the @phba to @buf up to
+ * @size number of bytes. A header that describes the current hbq state will be
+ * dumped to @buf first and then info on each hbq entry will be dumped to @buf
+ * until @size bytes have been dumped or all the hbq info has been dumped.
+ *
+ * Notes:
+ * This routine will rotate through each configured HBQ each time called.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size)
+{
+ int len = 0;
+ int i, j, found, posted, low;
+ uint32_t phys, raw_index, getidx;
+ struct lpfc_hbq_init *hip;
+ struct hbq_s *hbqs;
+ struct lpfc_hbq_entry *hbqe;
+ struct lpfc_dmabuf *d_buf;
+ struct hbq_dmabuf *hbq_buf;
+
+ if (phba->sli_rev != 3)
+ return 0;
+
+ spin_lock_irq(&phba->hbalock);
+
+ /* toggle between multiple hbqs, if any */
+ i = lpfc_sli_hbq_count();
+ if (i > 1) {
+ lpfc_debugfs_last_hbq++;
+ if (lpfc_debugfs_last_hbq >= i)
+ lpfc_debugfs_last_hbq = 0;
+ }
+ else
+ lpfc_debugfs_last_hbq = 0;
+
+ i = lpfc_debugfs_last_hbq;
+
+ len += snprintf(buf+len, size-len, "HBQ %d Info\n", i);
+
+ hbqs = &phba->hbqs[i];
+ posted = 0;
+ list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list)
+ posted++;
+
+ hip = lpfc_hbq_defs[i];
+ len += snprintf(buf+len, size-len,
+ "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n",
+ hip->hbq_index, hip->profile, hip->rn,
+ hip->buffer_count, hip->init_count, hip->add_count, posted);
+
+ raw_index = phba->hbq_get[i];
+ getidx = le32_to_cpu(raw_index);
+ len += snprintf(buf+len, size-len,
+ "entrys:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n",
+ hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx,
+ hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx);
+
+ hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt;
+ for (j=0; j<hbqs->entry_count; j++) {
+ len += snprintf(buf+len, size-len,
+ "%03d: %08x %04x %05x ", j,
+ le32_to_cpu(hbqe->bde.addrLow),
+ le32_to_cpu(hbqe->bde.tus.w),
+ le32_to_cpu(hbqe->buffer_tag));
+ i = 0;
+ found = 0;
+
+ /* First calculate if slot has an associated posted buffer */
+ low = hbqs->hbqPutIdx - posted;
+ if (low >= 0) {
+ if ((j >= hbqs->hbqPutIdx) || (j < low)) {
+ len += snprintf(buf+len, size-len, "Unused\n");
+ goto skipit;
+ }
+ }
+ else {
+ if ((j >= hbqs->hbqPutIdx) &&
+ (j < (hbqs->entry_count+low))) {
+ len += snprintf(buf+len, size-len, "Unused\n");
+ goto skipit;
+ }
+ }
+
+ /* Get the Buffer info for the posted buffer */
+ list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) {
+ hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
+ phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff);
+ if (phys == le32_to_cpu(hbqe->bde.addrLow)) {
+ len += snprintf(buf+len, size-len,
+ "Buf%d: %p %06x\n", i,
+ hbq_buf->dbuf.virt, hbq_buf->tag);
+ found = 1;
+ break;
+ }
+ i++;
+ }
+ if (!found) {
+ len += snprintf(buf+len, size-len, "No DMAinfo?\n");
+ }
+skipit:
+ hbqe++;
+ if (len > LPFC_HBQINFO_SIZE - 54)
+ break;
+ }
+ spin_unlock_irq(&phba->hbalock);
+ return len;
+}
+
+static int lpfc_debugfs_last_hba_slim_off;
+
+/**
+ * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer
+ * @phba: The HBA to gather SLIM info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the current contents of HBA SLIM for the HBA associated
+ * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data.
+ *
+ * Notes:
+ * This routine will only dump up to 1024 bytes of data each time called and
+ * should be called multiple times to dump the entire HBA SLIM.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size)
+{
+ int len = 0;
+ int i, off;
+ uint32_t *ptr;
+ char *buffer;
+
+ buffer = kmalloc(1024, GFP_KERNEL);
+ if (!buffer)
+ return 0;
+
+ off = 0;
+ spin_lock_irq(&phba->hbalock);
+
+ len += snprintf(buf+len, size-len, "HBA SLIM\n");
+ lpfc_memcpy_from_slim(buffer,
+ phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024);
+
+ ptr = (uint32_t *)&buffer[0];
+ off = lpfc_debugfs_last_hba_slim_off;
+
+ /* Set it up for the next time */
+ lpfc_debugfs_last_hba_slim_off += 1024;
+ if (lpfc_debugfs_last_hba_slim_off >= 4096)
+ lpfc_debugfs_last_hba_slim_off = 0;
+
+ i = 1024;
+ while (i > 0) {
+ len += snprintf(buf+len, size-len,
+ "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
+ off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
+ *(ptr+5), *(ptr+6), *(ptr+7));
+ ptr += 8;
+ i -= (8 * sizeof(uint32_t));
+ off += (8 * sizeof(uint32_t));
+ }
+
+ spin_unlock_irq(&phba->hbalock);
+ kfree(buffer);
+
+ return len;
+}
+
+/**
+ * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer
+ * @phba: The HBA to gather Host SLIM info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the current contents of host SLIM for the host associated
+ * with @phba to @buf up to @size bytes of data. The dump will contain the
+ * Mailbox, PCB, Rings, and Registers that are located in host memory.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
+{
+ int len = 0;
+ int i, off;
+ uint32_t word0, word1, word2, word3;
+ uint32_t *ptr;
+ struct lpfc_pgp *pgpp;
+ struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_sli_ring *pring;
+
+ off = 0;
+ spin_lock_irq(&phba->hbalock);
+
+ len += snprintf(buf+len, size-len, "SLIM Mailbox\n");
+ ptr = (uint32_t *)phba->slim2p.virt;
+ i = sizeof(MAILBOX_t);
+ while (i > 0) {
+ len += snprintf(buf+len, size-len,
+ "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
+ off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
+ *(ptr+5), *(ptr+6), *(ptr+7));
+ ptr += 8;
+ i -= (8 * sizeof(uint32_t));
+ off += (8 * sizeof(uint32_t));
+ }
+
+ len += snprintf(buf+len, size-len, "SLIM PCB\n");
+ ptr = (uint32_t *)phba->pcb;
+ i = sizeof(PCB_t);
+ while (i > 0) {
+ len += snprintf(buf+len, size-len,
+ "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
+ off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
+ *(ptr+5), *(ptr+6), *(ptr+7));
+ ptr += 8;
+ i -= (8 * sizeof(uint32_t));
+ off += (8 * sizeof(uint32_t));
+ }
+
+ for (i = 0; i < 4; i++) {
+ pgpp = &phba->port_gp[i];
+ pring = &psli->ring[i];
+ len += snprintf(buf+len, size-len,
+ "Ring %d: CMD GetInx:%d (Max:%d Next:%d "
+ "Local:%d flg:x%x) RSP PutInx:%d Max:%d\n",
+ i, pgpp->cmdGetInx, pring->sli.sli3.numCiocb,
+ pring->sli.sli3.next_cmdidx,
+ pring->sli.sli3.local_getidx,
+ pring->flag, pgpp->rspPutInx,
+ pring->sli.sli3.numRiocb);
+ }
+
+ if (phba->sli_rev <= LPFC_SLI_REV3) {
+ word0 = readl(phba->HAregaddr);
+ word1 = readl(phba->CAregaddr);
+ word2 = readl(phba->HSregaddr);
+ word3 = readl(phba->HCregaddr);
+ len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x "
+ "HC:%08x\n", word0, word1, word2, word3);
+ }
+ spin_unlock_irq(&phba->hbalock);
+ return len;
+}
+
+/**
+ * lpfc_debugfs_nodelist_data - Dump target node list to a buffer
+ * @vport: The vport to gather target node info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the current target node list associated with @vport to
+ * @buf up to @size bytes of data. Each node entry in the dump will contain a
+ * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
+{
+ int len = 0;
+ int cnt;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_nodelist *ndlp;
+ unsigned char *statep, *name;
+
+ cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE);
+
+ spin_lock_irq(shost->host_lock);
+ list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
+ if (!cnt) {
+ len += snprintf(buf+len, size-len,
+ "Missing Nodelist Entries\n");
+ break;
+ }
+ cnt--;
+ switch (ndlp->nlp_state) {
+ case NLP_STE_UNUSED_NODE:
+ statep = "UNUSED";
+ break;
+ case NLP_STE_PLOGI_ISSUE:
+ statep = "PLOGI ";
+ break;
+ case NLP_STE_ADISC_ISSUE:
+ statep = "ADISC ";
+ break;
+ case NLP_STE_REG_LOGIN_ISSUE:
+ statep = "REGLOG";
+ break;
+ case NLP_STE_PRLI_ISSUE:
+ statep = "PRLI ";
+ break;
+ case NLP_STE_LOGO_ISSUE:
+ statep = "LOGO ";
+ break;
+ case NLP_STE_UNMAPPED_NODE:
+ statep = "UNMAP ";
+ break;
+ case NLP_STE_MAPPED_NODE:
+ statep = "MAPPED";
+ break;
+ case NLP_STE_NPR_NODE:
+ statep = "NPR ";
+ break;
+ default:
+ statep = "UNKNOWN";
+ }
+ len += snprintf(buf+len, size-len, "%s DID:x%06x ",
+ statep, ndlp->nlp_DID);
+ name = (unsigned char *)&ndlp->nlp_portname;
+ len += snprintf(buf+len, size-len,
+ "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",
+ *name, *(name+1), *(name+2), *(name+3),
+ *(name+4), *(name+5), *(name+6), *(name+7));
+ name = (unsigned char *)&ndlp->nlp_nodename;
+ len += snprintf(buf+len, size-len,
+ "WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",
+ *name, *(name+1), *(name+2), *(name+3),
+ *(name+4), *(name+5), *(name+6), *(name+7));
+ if (ndlp->nlp_flag & NLP_RPI_REGISTERED)
+ len += snprintf(buf+len, size-len, "RPI:%03d ",
+ ndlp->nlp_rpi);
+ else
+ len += snprintf(buf+len, size-len, "RPI:none ");
+ len += snprintf(buf+len, size-len, "flag:x%08x ",
+ ndlp->nlp_flag);
+ if (!ndlp->nlp_type)
+ len += snprintf(buf+len, size-len, "UNKNOWN_TYPE ");
+ if (ndlp->nlp_type & NLP_FC_NODE)
+ len += snprintf(buf+len, size-len, "FC_NODE ");
+ if (ndlp->nlp_type & NLP_FABRIC)
+ len += snprintf(buf+len, size-len, "FABRIC ");
+ if (ndlp->nlp_type & NLP_FCP_TARGET)
+ len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ",
+ ndlp->nlp_sid);
+ if (ndlp->nlp_type & NLP_FCP_INITIATOR)
+ len += snprintf(buf+len, size-len, "FCP_INITIATOR ");
+ len += snprintf(buf+len, size-len, "usgmap:%x ",
+ ndlp->nlp_usg_map);
+ len += snprintf(buf+len, size-len, "refcnt:%x",
+ atomic_read(&ndlp->kref.refcount));
+ len += snprintf(buf+len, size-len, "\n");
+ }
+ spin_unlock_irq(shost->host_lock);
+ return len;
+}
+#endif
+
+/**
+ * lpfc_debugfs_disc_trc - Store discovery trace log
+ * @vport: The vport to associate this trace string with for retrieval.
+ * @mask: Log entry classification.
+ * @fmt: Format string to be displayed when dumping the log.
+ * @data1: 1st data parameter to be applied to @fmt.
+ * @data2: 2nd data parameter to be applied to @fmt.
+ * @data3: 3rd data parameter to be applied to @fmt.
+ *
+ * Description:
+ * This routine is used by the driver code to add a debugfs log entry to the
+ * discovery trace buffer associated with @vport. Only entries with a @mask that
+ * match the current debugfs discovery mask will be saved. Entries that do not
+ * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like
+ * printf when displaying the log.
+ **/
+inline void
+lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
+ uint32_t data1, uint32_t data2, uint32_t data3)
+{
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ struct lpfc_debugfs_trc *dtp;
+ int index;
+
+ if (!(lpfc_debugfs_mask_disc_trc & mask))
+ return;
+
+ if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc ||
+ !vport || !vport->disc_trc)
+ return;
+
+ index = atomic_inc_return(&vport->disc_trc_cnt) &
+ (lpfc_debugfs_max_disc_trc - 1);
+ dtp = vport->disc_trc + index;
+ dtp->fmt = fmt;
+ dtp->data1 = data1;
+ dtp->data2 = data2;
+ dtp->data3 = data3;
+ dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
+ dtp->jif = jiffies;
+#endif
+ return;
+}
+
+/**
+ * lpfc_debugfs_slow_ring_trc - Store slow ring trace log
+ * @phba: The phba to associate this trace string with for retrieval.
+ * @fmt: Format string to be displayed when dumping the log.
+ * @data1: 1st data parameter to be applied to @fmt.
+ * @data2: 2nd data parameter to be applied to @fmt.
+ * @data3: 3rd data parameter to be applied to @fmt.
+ *
+ * Description:
+ * This routine is used by the driver code to add a debugfs log entry to the
+ * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and
+ * @data3 are used like printf when displaying the log.
+ **/
+inline void
+lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
+ uint32_t data1, uint32_t data2, uint32_t data3)
+{
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ struct lpfc_debugfs_trc *dtp;
+ int index;
+
+ if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc ||
+ !phba || !phba->slow_ring_trc)
+ return;
+
+ index = atomic_inc_return(&phba->slow_ring_trc_cnt) &
+ (lpfc_debugfs_max_slow_ring_trc - 1);
+ dtp = phba->slow_ring_trc + index;
+ dtp->fmt = fmt;
+ dtp->data1 = data1;
+ dtp->data2 = data2;
+ dtp->data3 = data3;
+ dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
+ dtp->jif = jiffies;
+#endif
+ return;
+}
+
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+/**
+ * lpfc_debugfs_disc_trc_open - Open the discovery trace log
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return an negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_vport *vport = inode->i_private;
+ struct lpfc_debug *debug;
+ int size;
+ int rc = -ENOMEM;
+
+ if (!lpfc_debugfs_max_disc_trc) {
+ rc = -ENOSPC;
+ goto out;
+ }
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ goto out;
+
+ /* Round to page boundary */
+ size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
+ size = PAGE_ALIGN(size);
+
+ debug->buffer = kmalloc(size, GFP_KERNEL);
+ if (!debug->buffer) {
+ kfree(debug);
+ goto out;
+ }
+
+ debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size);
+ file->private_data = debug;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+/**
+ * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return an negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_hba *phba = inode->i_private;
+ struct lpfc_debug *debug;
+ int size;
+ int rc = -ENOMEM;
+
+ if (!lpfc_debugfs_max_slow_ring_trc) {
+ rc = -ENOSPC;
+ goto out;
+ }
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ goto out;
+
+ /* Round to page boundary */
+ size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
+ size = PAGE_ALIGN(size);
+
+ debug->buffer = kmalloc(size, GFP_KERNEL);
+ if (!debug->buffer) {
+ kfree(debug);
+ goto out;
+ }
+
+ debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size);
+ file->private_data = debug;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+/**
+ * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return an negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_hba *phba = inode->i_private;
+ struct lpfc_debug *debug;
+ int rc = -ENOMEM;
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ goto out;
+
+ /* Round to page boundary */
+ debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL);
+ if (!debug->buffer) {
+ kfree(debug);
+ goto out;
+ }
+
+ debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer,
+ LPFC_HBQINFO_SIZE);
+ file->private_data = debug;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+/**
+ * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return an negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_hba *phba = inode->i_private;
+ struct lpfc_debug *debug;
+ int rc = -ENOMEM;
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ goto out;
+
+ /* Round to page boundary */
+ debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL);
+ if (!debug->buffer) {
+ kfree(debug);
+ goto out;
+ }
+
+ debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer,
+ LPFC_DUMPHBASLIM_SIZE);
+ file->private_data = debug;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+/**
+ * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return an negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_hba *phba = inode->i_private;
+ struct lpfc_debug *debug;
+ int rc = -ENOMEM;
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ goto out;
+
+ /* Round to page boundary */
+ debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL);
+ if (!debug->buffer) {
+ kfree(debug);
+ goto out;
+ }
+
+ debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer,
+ LPFC_DUMPHOSTSLIM_SIZE);
+ file->private_data = debug;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+static int
+lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_debug *debug;
+ int rc = -ENOMEM;
+
+ if (!_dump_buf_data)
+ return -EBUSY;
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ goto out;
+
+ /* Round to page boundary */
+ printk(KERN_ERR "9059 BLKGRD: %s: _dump_buf_data=0x%p\n",
+ __func__, _dump_buf_data);
+ debug->buffer = _dump_buf_data;
+ if (!debug->buffer) {
+ kfree(debug);
+ goto out;
+ }
+
+ debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT;
+ file->private_data = debug;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+static int
+lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_debug *debug;
+ int rc = -ENOMEM;
+
+ if (!_dump_buf_dif)
+ return -EBUSY;
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ goto out;
+
+ /* Round to page boundary */
+ printk(KERN_ERR "9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%pD\n",
+ __func__, _dump_buf_dif, file);
+ debug->buffer = _dump_buf_dif;
+ if (!debug->buffer) {
+ kfree(debug);
+ goto out;
+ }
+
+ debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT;
+ file->private_data = debug;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+static ssize_t
+lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ /*
+ * The Data/DIF buffers only save one failing IO
+ * The write op is used as a reset mechanism after an IO has
+ * already been saved to the next one can be saved
+ */
+ spin_lock(&_dump_buf_lock);
+
+ memset((void *)_dump_buf_data, 0,
+ ((1 << PAGE_SHIFT) << _dump_buf_data_order));
+ memset((void *)_dump_buf_dif, 0,
+ ((1 << PAGE_SHIFT) << _dump_buf_dif_order));
+
+ _dump_buf_done = 0;
+
+ spin_unlock(&_dump_buf_lock);
+
+ return nbytes;
+}
+
+static ssize_t
+lpfc_debugfs_dif_err_read(struct file *file, char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct dentry *dent = file->f_path.dentry;
+ struct lpfc_hba *phba = file->private_data;
+ char cbuf[32];
+ uint64_t tmp = 0;
+ int cnt = 0;
+
+ if (dent == phba->debug_writeGuard)
+ cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt);
+ else if (dent == phba->debug_writeApp)
+ cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt);
+ else if (dent == phba->debug_writeRef)
+ cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt);
+ else if (dent == phba->debug_readGuard)
+ cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt);
+ else if (dent == phba->debug_readApp)
+ cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt);
+ else if (dent == phba->debug_readRef)
+ cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt);
+ else if (dent == phba->debug_InjErrNPortID)
+ cnt = snprintf(cbuf, 32, "0x%06x\n", phba->lpfc_injerr_nportid);
+ else if (dent == phba->debug_InjErrWWPN) {
+ memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name));
+ tmp = cpu_to_be64(tmp);
+ cnt = snprintf(cbuf, 32, "0x%016llx\n", tmp);
+ } else if (dent == phba->debug_InjErrLBA) {
+ if (phba->lpfc_injerr_lba == (sector_t)(-1))
+ cnt = snprintf(cbuf, 32, "off\n");
+ else
+ cnt = snprintf(cbuf, 32, "0x%llx\n",
+ (uint64_t) phba->lpfc_injerr_lba);
+ } else
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0547 Unknown debugfs error injection entry\n");
+
+ return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt);
+}
+
+static ssize_t
+lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct dentry *dent = file->f_path.dentry;
+ struct lpfc_hba *phba = file->private_data;
+ char dstbuf[32];
+ uint64_t tmp = 0;
+ int size;
+
+ memset(dstbuf, 0, 32);
+ size = (nbytes < 32) ? nbytes : 32;
+ if (copy_from_user(dstbuf, buf, size))
+ return 0;
+
+ if (dent == phba->debug_InjErrLBA) {
+ if ((buf[0] == 'o') && (buf[1] == 'f') && (buf[2] == 'f'))
+ tmp = (uint64_t)(-1);
+ }
+
+ if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp)))
+ return 0;
+
+ if (dent == phba->debug_writeGuard)
+ phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp;
+ else if (dent == phba->debug_writeApp)
+ phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp;
+ else if (dent == phba->debug_writeRef)
+ phba->lpfc_injerr_wref_cnt = (uint32_t)tmp;
+ else if (dent == phba->debug_readGuard)
+ phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp;
+ else if (dent == phba->debug_readApp)
+ phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp;
+ else if (dent == phba->debug_readRef)
+ phba->lpfc_injerr_rref_cnt = (uint32_t)tmp;
+ else if (dent == phba->debug_InjErrLBA)
+ phba->lpfc_injerr_lba = (sector_t)tmp;
+ else if (dent == phba->debug_InjErrNPortID)
+ phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID);
+ else if (dent == phba->debug_InjErrWWPN) {
+ tmp = cpu_to_be64(tmp);
+ memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name));
+ } else
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0548 Unknown debugfs error injection entry\n");
+
+ return nbytes;
+}
+
+static int
+lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
+/**
+ * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return an negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_vport *vport = inode->i_private;
+ struct lpfc_debug *debug;
+ int rc = -ENOMEM;
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ goto out;
+
+ /* Round to page boundary */
+ debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL);
+ if (!debug->buffer) {
+ kfree(debug);
+ goto out;
+ }
+
+ debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer,
+ LPFC_NODELIST_SIZE);
+ file->private_data = debug;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+/**
+ * lpfc_debugfs_lseek - Seek through a debugfs file
+ * @file: The file pointer to seek through.
+ * @off: The offset to seek to or the amount to seek by.
+ * @whence: Indicates how to seek.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs lseek file operation. The
+ * @whence parameter indicates whether @off is the offset to directly seek to,
+ * or if it is a value to seek forward or reverse by. This function figures out
+ * what the new offset of the debugfs file will be and assigns that value to the
+ * f_pos field of @file.
+ *
+ * Returns:
+ * This function returns the new offset if successful and returns a negative
+ * error if unable to process the seek.
+ **/
+static loff_t
+lpfc_debugfs_lseek(struct file *file, loff_t off, int whence)
+{
+ struct lpfc_debug *debug = file->private_data;
+ return fixed_size_llseek(file, off, whence, debug->len);
+}
+
+/**
+ * lpfc_debugfs_read - Read a debugfs file
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from from the buffer indicated in the private_data
+ * field of @file. It will start reading at @ppos and copy up to @nbytes of
+ * data to @buf.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_debugfs_read(struct file *file, char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+
+ return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer,
+ debug->len);
+}
+
+/**
+ * lpfc_debugfs_release - Release the buffer used to store debugfs file data
+ * @inode: The inode pointer that contains a vport pointer. (unused)
+ * @file: The file pointer that contains the buffer to release.
+ *
+ * Description:
+ * This routine frees the buffer that was allocated when the debugfs file was
+ * opened.
+ *
+ * Returns:
+ * This function returns zero.
+ **/
+static int
+lpfc_debugfs_release(struct inode *inode, struct file *file)
+{
+ struct lpfc_debug *debug = file->private_data;
+
+ kfree(debug->buffer);
+ kfree(debug);
+
+ return 0;
+}
+
+static int
+lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file)
+{
+ struct lpfc_debug *debug = file->private_data;
+
+ debug->buffer = NULL;
+ kfree(debug);
+
+ return 0;
+}
+
+/*
+ * ---------------------------------
+ * iDiag debugfs file access methods
+ * ---------------------------------
+ *
+ * All access methods are through the proper SLI4 PCI function's debugfs
+ * iDiag directory:
+ *
+ * /sys/kernel/debug/lpfc/fn<#>/iDiag
+ */
+
+/**
+ * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space
+ * @buf: The pointer to the user space buffer.
+ * @nbytes: The number of bytes in the user space buffer.
+ * @idiag_cmd: pointer to the idiag command struct.
+ *
+ * This routine reads data from debugfs user space buffer and parses the
+ * buffer for getting the idiag command and arguments. The while space in
+ * between the set of data is used as the parsing separator.
+ *
+ * This routine returns 0 when successful, it returns proper error code
+ * back to the user space in error conditions.
+ */
+static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes,
+ struct lpfc_idiag_cmd *idiag_cmd)
+{
+ char mybuf[64];
+ char *pbuf, *step_str;
+ int i;
+ size_t bsize;
+
+ /* Protect copy from user */
+ if (!access_ok(VERIFY_READ, buf, nbytes))
+ return -EFAULT;
+
+ memset(mybuf, 0, sizeof(mybuf));
+ memset(idiag_cmd, 0, sizeof(*idiag_cmd));
+ bsize = min(nbytes, (sizeof(mybuf)-1));
+
+ if (copy_from_user(mybuf, buf, bsize))
+ return -EFAULT;
+ pbuf = &mybuf[0];
+ step_str = strsep(&pbuf, "\t ");
+
+ /* The opcode must present */
+ if (!step_str)
+ return -EINVAL;
+
+ idiag_cmd->opcode = simple_strtol(step_str, NULL, 0);
+ if (idiag_cmd->opcode == 0)
+ return -EINVAL;
+
+ for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) {
+ step_str = strsep(&pbuf, "\t ");
+ if (!step_str)
+ return i;
+ idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0);
+ }
+ return i;
+}
+
+/**
+ * lpfc_idiag_open - idiag open debugfs
+ * @inode: The inode pointer that contains a pointer to phba.
+ * @file: The file pointer to attach the file operation.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It
+ * gets the reference to phba from the i_private field in @inode, it then
+ * allocates buffer for the file operation, performs the necessary PCI config
+ * space read into the allocated buffer according to the idiag user command
+ * setup, and then returns a pointer to buffer in the private_data field in
+ * @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return an
+ * negative error value.
+ **/
+static int
+lpfc_idiag_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_debug *debug;
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ return -ENOMEM;
+
+ debug->i_private = inode->i_private;
+ debug->buffer = NULL;
+ file->private_data = debug;
+
+ return 0;
+}
+
+/**
+ * lpfc_idiag_release - Release idiag access file operation
+ * @inode: The inode pointer that contains a vport pointer. (unused)
+ * @file: The file pointer that contains the buffer to release.
+ *
+ * Description:
+ * This routine is the generic release routine for the idiag access file
+ * operation, it frees the buffer that was allocated when the debugfs file
+ * was opened.
+ *
+ * Returns:
+ * This function returns zero.
+ **/
+static int
+lpfc_idiag_release(struct inode *inode, struct file *file)
+{
+ struct lpfc_debug *debug = file->private_data;
+
+ /* Free the buffers to the file operation */
+ kfree(debug->buffer);
+ kfree(debug);
+
+ return 0;
+}
+
+/**
+ * lpfc_idiag_cmd_release - Release idiag cmd access file operation
+ * @inode: The inode pointer that contains a vport pointer. (unused)
+ * @file: The file pointer that contains the buffer to release.
+ *
+ * Description:
+ * This routine frees the buffer that was allocated when the debugfs file
+ * was opened. It also reset the fields in the idiag command struct in the
+ * case of command for write operation.
+ *
+ * Returns:
+ * This function returns zero.
+ **/
+static int
+lpfc_idiag_cmd_release(struct inode *inode, struct file *file)
+{
+ struct lpfc_debug *debug = file->private_data;
+
+ if (debug->op == LPFC_IDIAG_OP_WR) {
+ switch (idiag.cmd.opcode) {
+ case LPFC_IDIAG_CMD_PCICFG_WR:
+ case LPFC_IDIAG_CMD_PCICFG_ST:
+ case LPFC_IDIAG_CMD_PCICFG_CL:
+ case LPFC_IDIAG_CMD_QUEACC_WR:
+ case LPFC_IDIAG_CMD_QUEACC_ST:
+ case LPFC_IDIAG_CMD_QUEACC_CL:
+ memset(&idiag, 0, sizeof(idiag));
+ break;
+ default:
+ break;
+ }
+ }
+
+ /* Free the buffers to the file operation */
+ kfree(debug->buffer);
+ kfree(debug);
+
+ return 0;
+}
+
+/**
+ * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba pci config space according to the
+ * idiag command, and copies to user @buf. Depending on the PCI config space
+ * read command setup, it does either a single register read of a byte
+ * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all
+ * registers from the 4K extended PCI config space.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE;
+ int where, count;
+ char *pbuffer;
+ struct pci_dev *pdev;
+ uint32_t u32val;
+ uint16_t u16val;
+ uint8_t u8val;
+
+ pdev = phba->pcidev;
+ if (!pdev)
+ return 0;
+
+ /* This is a user read operation */
+ debug->op = LPFC_IDIAG_OP_RD;
+
+ if (!debug->buffer)
+ debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL);
+ if (!debug->buffer)
+ return 0;
+ pbuffer = debug->buffer;
+
+ if (*ppos)
+ return 0;
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
+ where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
+ count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
+ } else
+ return 0;
+
+ /* Read single PCI config space register */
+ switch (count) {
+ case SIZE_U8: /* byte (8 bits) */
+ pci_read_config_byte(pdev, where, &u8val);
+ len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+ "%03x: %02x\n", where, u8val);
+ break;
+ case SIZE_U16: /* word (16 bits) */
+ pci_read_config_word(pdev, where, &u16val);
+ len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+ "%03x: %04x\n", where, u16val);
+ break;
+ case SIZE_U32: /* double word (32 bits) */
+ pci_read_config_dword(pdev, where, &u32val);
+ len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+ "%03x: %08x\n", where, u32val);
+ break;
+ case LPFC_PCI_CFG_BROWSE: /* browse all */
+ goto pcicfg_browse;
+ break;
+ default:
+ /* illegal count */
+ len = 0;
+ break;
+ }
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+
+pcicfg_browse:
+
+ /* Browse all PCI config space registers */
+ offset_label = idiag.offset.last_rd;
+ offset = offset_label;
+
+ /* Read PCI config space */
+ len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+ "%03x: ", offset_label);
+ while (index > 0) {
+ pci_read_config_dword(pdev, offset, &u32val);
+ len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+ "%08x ", u32val);
+ offset += sizeof(uint32_t);
+ if (offset >= LPFC_PCI_CFG_SIZE) {
+ len += snprintf(pbuffer+len,
+ LPFC_PCI_CFG_SIZE-len, "\n");
+ break;
+ }
+ index -= sizeof(uint32_t);
+ if (!index)
+ len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+ "\n");
+ else if (!(index % (8 * sizeof(uint32_t)))) {
+ offset_label += (8 * sizeof(uint32_t));
+ len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+ "\n%03x: ", offset_label);
+ }
+ }
+
+ /* Set up the offset for next portion of pci cfg read */
+ if (index == 0) {
+ idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE;
+ if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE)
+ idiag.offset.last_rd = 0;
+ } else
+ idiag.offset.last_rd = 0;
+
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and
+ * then perform the syntax check for PCI config space read or write command
+ * accordingly. In the case of PCI config space read command, it sets up
+ * the command in the idiag command struct for the debugfs read operation.
+ * In the case of PCI config space write operation, it executes the write
+ * operation into the PCI config space accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ */
+static ssize_t
+lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ uint32_t where, value, count;
+ uint32_t u32val;
+ uint16_t u16val;
+ uint8_t u8val;
+ struct pci_dev *pdev;
+ int rc;
+
+ pdev = phba->pcidev;
+ if (!pdev)
+ return -EFAULT;
+
+ /* This is a user write operation */
+ debug->op = LPFC_IDIAG_OP_WR;
+
+ rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+ if (rc < 0)
+ return rc;
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
+ /* Sanity check on PCI config read command line arguments */
+ if (rc != LPFC_PCI_CFG_RD_CMD_ARG)
+ goto error_out;
+ /* Read command from PCI config space, set up command fields */
+ where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
+ count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
+ if (count == LPFC_PCI_CFG_BROWSE) {
+ if (where % sizeof(uint32_t))
+ goto error_out;
+ /* Starting offset to browse */
+ idiag.offset.last_rd = where;
+ } else if ((count != sizeof(uint8_t)) &&
+ (count != sizeof(uint16_t)) &&
+ (count != sizeof(uint32_t)))
+ goto error_out;
+ if (count == sizeof(uint8_t)) {
+ if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
+ goto error_out;
+ if (where % sizeof(uint8_t))
+ goto error_out;
+ }
+ if (count == sizeof(uint16_t)) {
+ if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
+ goto error_out;
+ if (where % sizeof(uint16_t))
+ goto error_out;
+ }
+ if (count == sizeof(uint32_t)) {
+ if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
+ goto error_out;
+ if (where % sizeof(uint32_t))
+ goto error_out;
+ }
+ } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
+ /* Sanity check on PCI config write command line arguments */
+ if (rc != LPFC_PCI_CFG_WR_CMD_ARG)
+ goto error_out;
+ /* Write command to PCI config space, read-modify-write */
+ where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
+ count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
+ value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX];
+ /* Sanity checks */
+ if ((count != sizeof(uint8_t)) &&
+ (count != sizeof(uint16_t)) &&
+ (count != sizeof(uint32_t)))
+ goto error_out;
+ if (count == sizeof(uint8_t)) {
+ if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
+ goto error_out;
+ if (where % sizeof(uint8_t))
+ goto error_out;
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
+ pci_write_config_byte(pdev, where,
+ (uint8_t)value);
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
+ rc = pci_read_config_byte(pdev, where, &u8val);
+ if (!rc) {
+ u8val |= (uint8_t)value;
+ pci_write_config_byte(pdev, where,
+ u8val);
+ }
+ }
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
+ rc = pci_read_config_byte(pdev, where, &u8val);
+ if (!rc) {
+ u8val &= (uint8_t)(~value);
+ pci_write_config_byte(pdev, where,
+ u8val);
+ }
+ }
+ }
+ if (count == sizeof(uint16_t)) {
+ if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
+ goto error_out;
+ if (where % sizeof(uint16_t))
+ goto error_out;
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
+ pci_write_config_word(pdev, where,
+ (uint16_t)value);
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
+ rc = pci_read_config_word(pdev, where, &u16val);
+ if (!rc) {
+ u16val |= (uint16_t)value;
+ pci_write_config_word(pdev, where,
+ u16val);
+ }
+ }
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
+ rc = pci_read_config_word(pdev, where, &u16val);
+ if (!rc) {
+ u16val &= (uint16_t)(~value);
+ pci_write_config_word(pdev, where,
+ u16val);
+ }
+ }
+ }
+ if (count == sizeof(uint32_t)) {
+ if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
+ goto error_out;
+ if (where % sizeof(uint32_t))
+ goto error_out;
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
+ pci_write_config_dword(pdev, where, value);
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
+ rc = pci_read_config_dword(pdev, where,
+ &u32val);
+ if (!rc) {
+ u32val |= value;
+ pci_write_config_dword(pdev, where,
+ u32val);
+ }
+ }
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
+ rc = pci_read_config_dword(pdev, where,
+ &u32val);
+ if (!rc) {
+ u32val &= ~value;
+ pci_write_config_dword(pdev, where,
+ u32val);
+ }
+ }
+ }
+ } else
+ /* All other opecodes are illegal for now */
+ goto error_out;
+
+ return nbytes;
+error_out:
+ memset(&idiag, 0, sizeof(idiag));
+ return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_baracc_read - idiag debugfs pci bar access read
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba pci bar memory mapped space
+ * according to the idiag command, and copies to user @buf.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ int offset_label, offset, offset_run, len = 0, index;
+ int bar_num, acc_range, bar_size;
+ char *pbuffer;
+ void __iomem *mem_mapped_bar;
+ uint32_t if_type;
+ struct pci_dev *pdev;
+ uint32_t u32val;
+
+ pdev = phba->pcidev;
+ if (!pdev)
+ return 0;
+
+ /* This is a user read operation */
+ debug->op = LPFC_IDIAG_OP_RD;
+
+ if (!debug->buffer)
+ debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL);
+ if (!debug->buffer)
+ return 0;
+ pbuffer = debug->buffer;
+
+ if (*ppos)
+ return 0;
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
+ bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
+ offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
+ acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
+ bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
+ } else
+ return 0;
+
+ if (acc_range == 0)
+ return 0;
+
+ if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
+ if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
+ if (bar_num == IDIAG_BARACC_BAR_0)
+ mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
+ else if (bar_num == IDIAG_BARACC_BAR_1)
+ mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
+ else if (bar_num == IDIAG_BARACC_BAR_2)
+ mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
+ else
+ return 0;
+ } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
+ if (bar_num == IDIAG_BARACC_BAR_0)
+ mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
+ else
+ return 0;
+ } else
+ return 0;
+
+ /* Read single PCI bar space register */
+ if (acc_range == SINGLE_WORD) {
+ offset_run = offset;
+ u32val = readl(mem_mapped_bar + offset_run);
+ len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
+ "%05x: %08x\n", offset_run, u32val);
+ } else
+ goto baracc_browse;
+
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+
+baracc_browse:
+
+ /* Browse all PCI bar space registers */
+ offset_label = idiag.offset.last_rd;
+ offset_run = offset_label;
+
+ /* Read PCI bar memory mapped space */
+ len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
+ "%05x: ", offset_label);
+ index = LPFC_PCI_BAR_RD_SIZE;
+ while (index > 0) {
+ u32val = readl(mem_mapped_bar + offset_run);
+ len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
+ "%08x ", u32val);
+ offset_run += sizeof(uint32_t);
+ if (acc_range == LPFC_PCI_BAR_BROWSE) {
+ if (offset_run >= bar_size) {
+ len += snprintf(pbuffer+len,
+ LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
+ break;
+ }
+ } else {
+ if (offset_run >= offset +
+ (acc_range * sizeof(uint32_t))) {
+ len += snprintf(pbuffer+len,
+ LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
+ break;
+ }
+ }
+ index -= sizeof(uint32_t);
+ if (!index)
+ len += snprintf(pbuffer+len,
+ LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
+ else if (!(index % (8 * sizeof(uint32_t)))) {
+ offset_label += (8 * sizeof(uint32_t));
+ len += snprintf(pbuffer+len,
+ LPFC_PCI_BAR_RD_BUF_SIZE-len,
+ "\n%05x: ", offset_label);
+ }
+ }
+
+ /* Set up the offset for next portion of pci bar read */
+ if (index == 0) {
+ idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE;
+ if (acc_range == LPFC_PCI_BAR_BROWSE) {
+ if (idiag.offset.last_rd >= bar_size)
+ idiag.offset.last_rd = 0;
+ } else {
+ if (offset_run >= offset +
+ (acc_range * sizeof(uint32_t)))
+ idiag.offset.last_rd = offset;
+ }
+ } else {
+ if (acc_range == LPFC_PCI_BAR_BROWSE)
+ idiag.offset.last_rd = 0;
+ else
+ idiag.offset.last_rd = offset;
+ }
+
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and
+ * then perform the syntax check for PCI bar memory mapped space read or
+ * write command accordingly. In the case of PCI bar memory mapped space
+ * read command, it sets up the command in the idiag command struct for
+ * the debugfs read operation. In the case of PCI bar memorpy mapped space
+ * write operation, it executes the write operation into the PCI bar memory
+ * mapped space accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ */
+static ssize_t
+lpfc_idiag_baracc_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ uint32_t bar_num, bar_size, offset, value, acc_range;
+ struct pci_dev *pdev;
+ void __iomem *mem_mapped_bar;
+ uint32_t if_type;
+ uint32_t u32val;
+ int rc;
+
+ pdev = phba->pcidev;
+ if (!pdev)
+ return -EFAULT;
+
+ /* This is a user write operation */
+ debug->op = LPFC_IDIAG_OP_WR;
+
+ rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+ if (rc < 0)
+ return rc;
+
+ if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
+ bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
+
+ if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
+ if ((bar_num != IDIAG_BARACC_BAR_0) &&
+ (bar_num != IDIAG_BARACC_BAR_1) &&
+ (bar_num != IDIAG_BARACC_BAR_2))
+ goto error_out;
+ } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
+ if (bar_num != IDIAG_BARACC_BAR_0)
+ goto error_out;
+ } else
+ goto error_out;
+
+ if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
+ if (bar_num == IDIAG_BARACC_BAR_0) {
+ idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
+ LPFC_PCI_IF0_BAR0_SIZE;
+ mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
+ } else if (bar_num == IDIAG_BARACC_BAR_1) {
+ idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
+ LPFC_PCI_IF0_BAR1_SIZE;
+ mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
+ } else if (bar_num == IDIAG_BARACC_BAR_2) {
+ idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
+ LPFC_PCI_IF0_BAR2_SIZE;
+ mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
+ } else
+ goto error_out;
+ } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
+ if (bar_num == IDIAG_BARACC_BAR_0) {
+ idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
+ LPFC_PCI_IF2_BAR0_SIZE;
+ mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
+ } else
+ goto error_out;
+ } else
+ goto error_out;
+
+ offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
+ if (offset % sizeof(uint32_t))
+ goto error_out;
+
+ bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
+ /* Sanity check on PCI config read command line arguments */
+ if (rc != LPFC_PCI_BAR_RD_CMD_ARG)
+ goto error_out;
+ acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
+ if (acc_range == LPFC_PCI_BAR_BROWSE) {
+ if (offset > bar_size - sizeof(uint32_t))
+ goto error_out;
+ /* Starting offset to browse */
+ idiag.offset.last_rd = offset;
+ } else if (acc_range > SINGLE_WORD) {
+ if (offset + acc_range * sizeof(uint32_t) > bar_size)
+ goto error_out;
+ /* Starting offset to browse */
+ idiag.offset.last_rd = offset;
+ } else if (acc_range != SINGLE_WORD)
+ goto error_out;
+ } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
+ /* Sanity check on PCI bar write command line arguments */
+ if (rc != LPFC_PCI_BAR_WR_CMD_ARG)
+ goto error_out;
+ /* Write command to PCI bar space, read-modify-write */
+ acc_range = SINGLE_WORD;
+ value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX];
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) {
+ writel(value, mem_mapped_bar + offset);
+ readl(mem_mapped_bar + offset);
+ }
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) {
+ u32val = readl(mem_mapped_bar + offset);
+ u32val |= value;
+ writel(u32val, mem_mapped_bar + offset);
+ readl(mem_mapped_bar + offset);
+ }
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
+ u32val = readl(mem_mapped_bar + offset);
+ u32val &= ~value;
+ writel(u32val, mem_mapped_bar + offset);
+ readl(mem_mapped_bar + offset);
+ }
+ } else
+ /* All other opecodes are illegal for now */
+ goto error_out;
+
+ return nbytes;
+error_out:
+ memset(&idiag, 0, sizeof(idiag));
+ return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_queinfo_read - idiag debugfs read queue information
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba SLI4 PCI function queue information,
+ * and copies to user @buf.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ int len = 0;
+ char *pbuffer;
+ int x, cnt;
+ int max_cnt;
+ struct lpfc_queue *qp = NULL;
+
+
+ if (!debug->buffer)
+ debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL);
+ if (!debug->buffer)
+ return 0;
+ pbuffer = debug->buffer;
+ max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 128;
+
+ if (*ppos)
+ return 0;
+
+ spin_lock_irq(&phba->hbalock);
+
+ /* Fast-path event queue */
+ if (phba->sli4_hba.hba_eq && phba->cfg_fcp_io_channel) {
+ cnt = phba->cfg_fcp_io_channel;
+
+ for (x = 0; x < cnt; x++) {
+
+ /* Fast-path EQ */
+ qp = phba->sli4_hba.hba_eq[x];
+ if (!qp)
+ goto proc_cq;
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\nHBA EQ info: "
+ "EQ-STAT[max:x%x noE:x%x "
+ "bs:x%x proc:x%llx]\n",
+ qp->q_cnt_1, qp->q_cnt_2,
+ qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "EQID[%02d], "
+ "QE-CNT[%04d], QE-SIZE[%04d], "
+ "HOST-IDX[%04d], PORT-IDX[%04d]",
+ qp->queue_id,
+ qp->entry_count,
+ qp->entry_size,
+ qp->host_index,
+ qp->hba_index);
+
+
+ /* Reset max counter */
+ qp->EQ_max_eqe = 0;
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+ if (len >= max_cnt)
+ goto too_big;
+proc_cq:
+ /* Fast-path FCP CQ */
+ qp = phba->sli4_hba.fcp_cq[x];
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tFCP CQ info: ");
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "AssocEQID[%02d]: "
+ "CQ STAT[max:x%x relw:x%x "
+ "xabt:x%x wq:x%llx]\n",
+ qp->assoc_qid,
+ qp->q_cnt_1, qp->q_cnt_2,
+ qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tCQID[%02d], "
+ "QE-CNT[%04d], QE-SIZE[%04d], "
+ "HOST-IDX[%04d], PORT-IDX[%04d]",
+ qp->queue_id, qp->entry_count,
+ qp->entry_size, qp->host_index,
+ qp->hba_index);
+
+
+ /* Reset max counter */
+ qp->CQ_max_cqe = 0;
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+ if (len >= max_cnt)
+ goto too_big;
+
+ /* Fast-path FCP WQ */
+ qp = phba->sli4_hba.fcp_wq[x];
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tFCP WQ info: ");
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "AssocCQID[%02d]: "
+ "WQ-STAT[oflow:x%x posted:x%llx]\n",
+ qp->assoc_qid,
+ qp->q_cnt_1, (unsigned long long)qp->q_cnt_4);
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tWQID[%02d], "
+ "QE-CNT[%04d], QE-SIZE[%04d], "
+ "HOST-IDX[%04d], PORT-IDX[%04d]",
+ qp->queue_id,
+ qp->entry_count,
+ qp->entry_size,
+ qp->host_index,
+ qp->hba_index);
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+ if (len >= max_cnt)
+ goto too_big;
+
+ if (x)
+ continue;
+
+ /* Only EQ 0 has slow path CQs configured */
+
+ /* Slow-path mailbox CQ */
+ qp = phba->sli4_hba.mbx_cq;
+ if (qp) {
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tMBX CQ info: ");
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "AssocEQID[%02d]: "
+ "CQ-STAT[mbox:x%x relw:x%x "
+ "xabt:x%x wq:x%llx]\n",
+ qp->assoc_qid,
+ qp->q_cnt_1, qp->q_cnt_2,
+ qp->q_cnt_3,
+ (unsigned long long)qp->q_cnt_4);
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tCQID[%02d], "
+ "QE-CNT[%04d], QE-SIZE[%04d], "
+ "HOST-IDX[%04d], PORT-IDX[%04d]",
+ qp->queue_id, qp->entry_count,
+ qp->entry_size, qp->host_index,
+ qp->hba_index);
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+ if (len >= max_cnt)
+ goto too_big;
+ }
+
+ /* Slow-path MBOX MQ */
+ qp = phba->sli4_hba.mbx_wq;
+ if (qp) {
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tMBX MQ info: ");
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "AssocCQID[%02d]:\n",
+ phba->sli4_hba.mbx_wq->assoc_qid);
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tWQID[%02d], "
+ "QE-CNT[%04d], QE-SIZE[%04d], "
+ "HOST-IDX[%04d], PORT-IDX[%04d]",
+ qp->queue_id, qp->entry_count,
+ qp->entry_size, qp->host_index,
+ qp->hba_index);
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+ if (len >= max_cnt)
+ goto too_big;
+ }
+
+ /* Slow-path ELS response CQ */
+ qp = phba->sli4_hba.els_cq;
+ if (qp) {
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tELS CQ info: ");
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "AssocEQID[%02d]: "
+ "CQ-STAT[max:x%x relw:x%x "
+ "xabt:x%x wq:x%llx]\n",
+ qp->assoc_qid,
+ qp->q_cnt_1, qp->q_cnt_2,
+ qp->q_cnt_3,
+ (unsigned long long)qp->q_cnt_4);
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tCQID [%02d], "
+ "QE-CNT[%04d], QE-SIZE[%04d], "
+ "HOST-IDX[%04d], PORT-IDX[%04d]",
+ qp->queue_id, qp->entry_count,
+ qp->entry_size, qp->host_index,
+ qp->hba_index);
+
+ /* Reset max counter */
+ qp->CQ_max_cqe = 0;
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+ if (len >= max_cnt)
+ goto too_big;
+ }
+
+ /* Slow-path ELS WQ */
+ qp = phba->sli4_hba.els_wq;
+ if (qp) {
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tELS WQ info: ");
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "AssocCQID[%02d]: "
+ " WQ-STAT[oflow:x%x "
+ "posted:x%llx]\n",
+ qp->assoc_qid,
+ qp->q_cnt_1,
+ (unsigned long long)qp->q_cnt_4);
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tWQID[%02d], "
+ "QE-CNT[%04d], QE-SIZE[%04d], "
+ "HOST-IDX[%04d], PORT-IDX[%04d]",
+ qp->queue_id, qp->entry_count,
+ qp->entry_size, qp->host_index,
+ qp->hba_index);
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+ if (len >= max_cnt)
+ goto too_big;
+ }
+
+ if (phba->sli4_hba.hdr_rq && phba->sli4_hba.dat_rq) {
+ /* Slow-path RQ header */
+ qp = phba->sli4_hba.hdr_rq;
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tRQ info: ");
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "AssocCQID[%02d]: "
+ "RQ-STAT[nopost:x%x nobuf:x%x "
+ "trunc:x%x rcv:x%llx]\n",
+ qp->assoc_qid,
+ qp->q_cnt_1, qp->q_cnt_2,
+ qp->q_cnt_3,
+ (unsigned long long)qp->q_cnt_4);
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tHQID[%02d], "
+ "QE-CNT[%04d], QE-SIZE[%04d], "
+ "HOST-IDX[%04d], PORT-IDX[%04d]\n",
+ qp->queue_id,
+ qp->entry_count,
+ qp->entry_size,
+ qp->host_index,
+ qp->hba_index);
+
+ /* Slow-path RQ data */
+ qp = phba->sli4_hba.dat_rq;
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tDQID[%02d], "
+ "QE-CNT[%04d], QE-SIZE[%04d], "
+ "HOST-IDX[%04d], PORT-IDX[%04d]\n",
+ qp->queue_id,
+ qp->entry_count,
+ qp->entry_size,
+ qp->host_index,
+ qp->hba_index);
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+ }
+ }
+ }
+
+ if (phba->cfg_fof) {
+ /* FOF EQ */
+ qp = phba->sli4_hba.fof_eq;
+ if (!qp)
+ goto out;
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\nFOF EQ info: "
+ "EQ-STAT[max:x%x noE:x%x "
+ "bs:x%x proc:x%llx]\n",
+ qp->q_cnt_1, qp->q_cnt_2,
+ qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "EQID[%02d], "
+ "QE-CNT[%04d], QE-SIZE[%04d], "
+ "HOST-IDX[%04d], PORT-IDX[%04d]",
+ qp->queue_id,
+ qp->entry_count,
+ qp->entry_size,
+ qp->host_index,
+ qp->hba_index);
+
+ /* Reset max counter */
+ qp->EQ_max_eqe = 0;
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+ if (len >= max_cnt)
+ goto too_big;
+ }
+
+ if (phba->cfg_fof) {
+
+ /* OAS CQ */
+ qp = phba->sli4_hba.oas_cq;
+ if (qp) {
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tOAS CQ info: ");
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "AssocEQID[%02d]: "
+ "CQ STAT[max:x%x relw:x%x "
+ "xabt:x%x wq:x%llx]\n",
+ qp->assoc_qid,
+ qp->q_cnt_1, qp->q_cnt_2,
+ qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tCQID[%02d], "
+ "QE-CNT[%04d], QE-SIZE[%04d], "
+ "HOST-IDX[%04d], PORT-IDX[%04d]",
+ qp->queue_id, qp->entry_count,
+ qp->entry_size, qp->host_index,
+ qp->hba_index);
+
+ /* Reset max counter */
+ qp->CQ_max_cqe = 0;
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+ if (len >= max_cnt)
+ goto too_big;
+ }
+
+ /* OAS WQ */
+ qp = phba->sli4_hba.oas_wq;
+ if (qp) {
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tOAS WQ info: ");
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "AssocCQID[%02d]: "
+ "WQ-STAT[oflow:x%x posted:x%llx]\n",
+ qp->assoc_qid,
+ qp->q_cnt_1, (unsigned long long)qp->q_cnt_4);
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tWQID[%02d], "
+ "QE-CNT[%04d], QE-SIZE[%04d], "
+ "HOST-IDX[%04d], PORT-IDX[%04d]",
+ qp->queue_id,
+ qp->entry_count,
+ qp->entry_size,
+ qp->host_index,
+ qp->hba_index);
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+ if (len >= max_cnt)
+ goto too_big;
+ }
+ }
+out:
+ spin_unlock_irq(&phba->hbalock);
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+
+too_big:
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len, "Truncated ...\n");
+ spin_unlock_irq(&phba->hbalock);
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_que_param_check - queue access command parameter sanity check
+ * @q: The pointer to queue structure.
+ * @index: The index into a queue entry.
+ * @count: The number of queue entries to access.
+ *
+ * Description:
+ * The routine performs sanity check on device queue access method commands.
+ *
+ * Returns:
+ * This function returns -EINVAL when fails the sanity check, otherwise, it
+ * returns 0.
+ **/
+static int
+lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count)
+{
+ /* Only support single entry read or browsing */
+ if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE))
+ return -EINVAL;
+ if (index > q->entry_count - 1)
+ return -EINVAL;
+ return 0;
+}
+
+/**
+ * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index
+ * @pbuffer: The pointer to buffer to copy the read data into.
+ * @pque: The pointer to the queue to be read.
+ * @index: The index into the queue entry.
+ *
+ * Description:
+ * This routine reads out a single entry from the given queue's index location
+ * and copies it into the buffer provided.
+ *
+ * Returns:
+ * This function returns 0 when it fails, otherwise, it returns the length of
+ * the data read into the buffer provided.
+ **/
+static int
+lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque,
+ uint32_t index)
+{
+ int offset, esize;
+ uint32_t *pentry;
+
+ if (!pbuffer || !pque)
+ return 0;
+
+ esize = pque->entry_size;
+ len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
+ "QE-INDEX[%04d]:\n", index);
+
+ offset = 0;
+ pentry = pque->qe[index].address;
+ while (esize > 0) {
+ len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
+ "%08x ", *pentry);
+ pentry++;
+ offset += sizeof(uint32_t);
+ esize -= sizeof(uint32_t);
+ if (esize > 0 && !(offset % (4 * sizeof(uint32_t))))
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_ACC_BUF_SIZE-len, "\n");
+ }
+ len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n");
+
+ return len;
+}
+
+/**
+ * lpfc_idiag_queacc_read - idiag debugfs read port queue
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba device queue memory according to the
+ * idiag command, and copies to user @buf. Depending on the queue dump read
+ * command setup, it does either a single queue entry read or browing through
+ * all entries of the queue.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ uint32_t last_index, index, count;
+ struct lpfc_queue *pque = NULL;
+ char *pbuffer;
+ int len = 0;
+
+ /* This is a user read operation */
+ debug->op = LPFC_IDIAG_OP_RD;
+
+ if (!debug->buffer)
+ debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL);
+ if (!debug->buffer)
+ return 0;
+ pbuffer = debug->buffer;
+
+ if (*ppos)
+ return 0;
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
+ index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
+ count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
+ pque = (struct lpfc_queue *)idiag.ptr_private;
+ } else
+ return 0;
+
+ /* Browse the queue starting from index */
+ if (count == LPFC_QUE_ACC_BROWSE)
+ goto que_browse;
+
+ /* Read a single entry from the queue */
+ len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
+
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+
+que_browse:
+
+ /* Browse all entries from the queue */
+ last_index = idiag.offset.last_rd;
+ index = last_index;
+
+ while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) {
+ len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
+ index++;
+ if (index > pque->entry_count - 1)
+ break;
+ }
+
+ /* Set up the offset for next portion of pci cfg read */
+ if (index > pque->entry_count - 1)
+ index = 0;
+ idiag.offset.last_rd = index;
+
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and then
+ * perform the syntax check for port queue read (dump) or write (set) command
+ * accordingly. In the case of port queue read command, it sets up the command
+ * in the idiag command struct for the following debugfs read operation. In
+ * the case of port queue write operation, it executes the write operation
+ * into the port queue entry accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ **/
+static ssize_t
+lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ uint32_t qidx, quetp, queid, index, count, offset, value;
+ uint32_t *pentry;
+ struct lpfc_queue *pque;
+ int rc;
+
+ /* This is a user write operation */
+ debug->op = LPFC_IDIAG_OP_WR;
+
+ rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+ if (rc < 0)
+ return rc;
+
+ /* Get and sanity check on command feilds */
+ quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX];
+ queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX];
+ index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
+ count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
+ offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX];
+ value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX];
+
+ /* Sanity check on command line arguments */
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
+ if (rc != LPFC_QUE_ACC_WR_CMD_ARG)
+ goto error_out;
+ if (count != 1)
+ goto error_out;
+ } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
+ if (rc != LPFC_QUE_ACC_RD_CMD_ARG)
+ goto error_out;
+ } else
+ goto error_out;
+
+ switch (quetp) {
+ case LPFC_IDIAG_EQ:
+ /* HBA event queue */
+ if (phba->sli4_hba.hba_eq) {
+ for (qidx = 0; qidx < phba->cfg_fcp_io_channel;
+ qidx++) {
+ if (phba->sli4_hba.hba_eq[qidx] &&
+ phba->sli4_hba.hba_eq[qidx]->queue_id ==
+ queid) {
+ /* Sanity check */
+ rc = lpfc_idiag_que_param_check(
+ phba->sli4_hba.hba_eq[qidx],
+ index, count);
+ if (rc)
+ goto error_out;
+ idiag.ptr_private =
+ phba->sli4_hba.hba_eq[qidx];
+ goto pass_check;
+ }
+ }
+ }
+ goto error_out;
+ break;
+ case LPFC_IDIAG_CQ:
+ /* MBX complete queue */
+ if (phba->sli4_hba.mbx_cq &&
+ phba->sli4_hba.mbx_cq->queue_id == queid) {
+ /* Sanity check */
+ rc = lpfc_idiag_que_param_check(
+ phba->sli4_hba.mbx_cq, index, count);
+ if (rc)
+ goto error_out;
+ idiag.ptr_private = phba->sli4_hba.mbx_cq;
+ goto pass_check;
+ }
+ /* ELS complete queue */
+ if (phba->sli4_hba.els_cq &&
+ phba->sli4_hba.els_cq->queue_id == queid) {
+ /* Sanity check */
+ rc = lpfc_idiag_que_param_check(
+ phba->sli4_hba.els_cq, index, count);
+ if (rc)
+ goto error_out;
+ idiag.ptr_private = phba->sli4_hba.els_cq;
+ goto pass_check;
+ }
+ /* FCP complete queue */
+ if (phba->sli4_hba.fcp_cq) {
+ qidx = 0;
+ do {
+ if (phba->sli4_hba.fcp_cq[qidx] &&
+ phba->sli4_hba.fcp_cq[qidx]->queue_id ==
+ queid) {
+ /* Sanity check */
+ rc = lpfc_idiag_que_param_check(
+ phba->sli4_hba.fcp_cq[qidx],
+ index, count);
+ if (rc)
+ goto error_out;
+ idiag.ptr_private =
+ phba->sli4_hba.fcp_cq[qidx];
+ goto pass_check;
+ }
+ } while (++qidx < phba->cfg_fcp_io_channel);
+ }
+ goto error_out;
+ break;
+ case LPFC_IDIAG_MQ:
+ /* MBX work queue */
+ if (phba->sli4_hba.mbx_wq &&
+ phba->sli4_hba.mbx_wq->queue_id == queid) {
+ /* Sanity check */
+ rc = lpfc_idiag_que_param_check(
+ phba->sli4_hba.mbx_wq, index, count);
+ if (rc)
+ goto error_out;
+ idiag.ptr_private = phba->sli4_hba.mbx_wq;
+ goto pass_check;
+ }
+ goto error_out;
+ break;
+ case LPFC_IDIAG_WQ:
+ /* ELS work queue */
+ if (phba->sli4_hba.els_wq &&
+ phba->sli4_hba.els_wq->queue_id == queid) {
+ /* Sanity check */
+ rc = lpfc_idiag_que_param_check(
+ phba->sli4_hba.els_wq, index, count);
+ if (rc)
+ goto error_out;
+ idiag.ptr_private = phba->sli4_hba.els_wq;
+ goto pass_check;
+ }
+ /* FCP work queue */
+ if (phba->sli4_hba.fcp_wq) {
+ for (qidx = 0; qidx < phba->cfg_fcp_io_channel;
+ qidx++) {
+ if (!phba->sli4_hba.fcp_wq[qidx])
+ continue;
+ if (phba->sli4_hba.fcp_wq[qidx]->queue_id ==
+ queid) {
+ /* Sanity check */
+ rc = lpfc_idiag_que_param_check(
+ phba->sli4_hba.fcp_wq[qidx],
+ index, count);
+ if (rc)
+ goto error_out;
+ idiag.ptr_private =
+ phba->sli4_hba.fcp_wq[qidx];
+ goto pass_check;
+ }
+ }
+ }
+ goto error_out;
+ break;
+ case LPFC_IDIAG_RQ:
+ /* HDR queue */
+ if (phba->sli4_hba.hdr_rq &&
+ phba->sli4_hba.hdr_rq->queue_id == queid) {
+ /* Sanity check */
+ rc = lpfc_idiag_que_param_check(
+ phba->sli4_hba.hdr_rq, index, count);
+ if (rc)
+ goto error_out;
+ idiag.ptr_private = phba->sli4_hba.hdr_rq;
+ goto pass_check;
+ }
+ /* DAT queue */
+ if (phba->sli4_hba.dat_rq &&
+ phba->sli4_hba.dat_rq->queue_id == queid) {
+ /* Sanity check */
+ rc = lpfc_idiag_que_param_check(
+ phba->sli4_hba.dat_rq, index, count);
+ if (rc)
+ goto error_out;
+ idiag.ptr_private = phba->sli4_hba.dat_rq;
+ goto pass_check;
+ }
+ goto error_out;
+ break;
+ default:
+ goto error_out;
+ break;
+ }
+
+pass_check:
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
+ if (count == LPFC_QUE_ACC_BROWSE)
+ idiag.offset.last_rd = index;
+ }
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
+ /* Additional sanity checks on write operation */
+ pque = (struct lpfc_queue *)idiag.ptr_private;
+ if (offset > pque->entry_size/sizeof(uint32_t) - 1)
+ goto error_out;
+ pentry = pque->qe[index].address;
+ pentry += offset;
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR)
+ *pentry = value;
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST)
+ *pentry |= value;
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL)
+ *pentry &= ~value;
+ }
+ return nbytes;
+
+error_out:
+ /* Clean out command structure on command error out */
+ memset(&idiag, 0, sizeof(idiag));
+ return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register
+ * @phba: The pointer to hba structure.
+ * @pbuffer: The pointer to the buffer to copy the data to.
+ * @len: The lenght of bytes to copied.
+ * @drbregid: The id to doorbell registers.
+ *
+ * Description:
+ * This routine reads a doorbell register and copies its content to the
+ * user buffer pointed to by @pbuffer.
+ *
+ * Returns:
+ * This function returns the amount of data that was copied into @pbuffer.
+ **/
+static int
+lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
+ int len, uint32_t drbregid)
+{
+
+ if (!pbuffer)
+ return 0;
+
+ switch (drbregid) {
+ case LPFC_DRB_EQCQ:
+ len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
+ "EQCQ-DRB-REG: 0x%08x\n",
+ readl(phba->sli4_hba.EQCQDBregaddr));
+ break;
+ case LPFC_DRB_MQ:
+ len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
+ "MQ-DRB-REG: 0x%08x\n",
+ readl(phba->sli4_hba.MQDBregaddr));
+ break;
+ case LPFC_DRB_WQ:
+ len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
+ "WQ-DRB-REG: 0x%08x\n",
+ readl(phba->sli4_hba.WQDBregaddr));
+ break;
+ case LPFC_DRB_RQ:
+ len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
+ "RQ-DRB-REG: 0x%08x\n",
+ readl(phba->sli4_hba.RQDBregaddr));
+ break;
+ default:
+ break;
+ }
+
+ return len;
+}
+
+/**
+ * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba device doorbell register according
+ * to the idiag command, and copies to user @buf. Depending on the doorbell
+ * register read command setup, it does either a single doorbell register
+ * read or dump all doorbell registers.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ uint32_t drb_reg_id, i;
+ char *pbuffer;
+ int len = 0;
+
+ /* This is a user read operation */
+ debug->op = LPFC_IDIAG_OP_RD;
+
+ if (!debug->buffer)
+ debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL);
+ if (!debug->buffer)
+ return 0;
+ pbuffer = debug->buffer;
+
+ if (*ppos)
+ return 0;
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD)
+ drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
+ else
+ return 0;
+
+ if (drb_reg_id == LPFC_DRB_ACC_ALL)
+ for (i = 1; i <= LPFC_DRB_MAX; i++)
+ len = lpfc_idiag_drbacc_read_reg(phba,
+ pbuffer, len, i);
+ else
+ len = lpfc_idiag_drbacc_read_reg(phba,
+ pbuffer, len, drb_reg_id);
+
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and then
+ * perform the syntax check for port doorbell register read (dump) or write
+ * (set) command accordingly. In the case of port queue read command, it sets
+ * up the command in the idiag command struct for the following debugfs read
+ * operation. In the case of port doorbell register write operation, it
+ * executes the write operation into the port doorbell register accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ **/
+static ssize_t
+lpfc_idiag_drbacc_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ uint32_t drb_reg_id, value, reg_val = 0;
+ void __iomem *drb_reg;
+ int rc;
+
+ /* This is a user write operation */
+ debug->op = LPFC_IDIAG_OP_WR;
+
+ rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+ if (rc < 0)
+ return rc;
+
+ /* Sanity check on command line arguments */
+ drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
+ value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX];
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
+ if (rc != LPFC_DRB_ACC_WR_CMD_ARG)
+ goto error_out;
+ if (drb_reg_id > LPFC_DRB_MAX)
+ goto error_out;
+ } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) {
+ if (rc != LPFC_DRB_ACC_RD_CMD_ARG)
+ goto error_out;
+ if ((drb_reg_id > LPFC_DRB_MAX) &&
+ (drb_reg_id != LPFC_DRB_ACC_ALL))
+ goto error_out;
+ } else
+ goto error_out;
+
+ /* Perform the write access operation */
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
+ switch (drb_reg_id) {
+ case LPFC_DRB_EQCQ:
+ drb_reg = phba->sli4_hba.EQCQDBregaddr;
+ break;
+ case LPFC_DRB_MQ:
+ drb_reg = phba->sli4_hba.MQDBregaddr;
+ break;
+ case LPFC_DRB_WQ:
+ drb_reg = phba->sli4_hba.WQDBregaddr;
+ break;
+ case LPFC_DRB_RQ:
+ drb_reg = phba->sli4_hba.RQDBregaddr;
+ break;
+ default:
+ goto error_out;
+ }
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR)
+ reg_val = value;
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) {
+ reg_val = readl(drb_reg);
+ reg_val |= value;
+ }
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
+ reg_val = readl(drb_reg);
+ reg_val &= ~value;
+ }
+ writel(reg_val, drb_reg);
+ readl(drb_reg); /* flush */
+ }
+ return nbytes;
+
+error_out:
+ /* Clean out command structure on command error out */
+ memset(&idiag, 0, sizeof(idiag));
+ return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers
+ * @phba: The pointer to hba structure.
+ * @pbuffer: The pointer to the buffer to copy the data to.
+ * @len: The lenght of bytes to copied.
+ * @drbregid: The id to doorbell registers.
+ *
+ * Description:
+ * This routine reads a control register and copies its content to the
+ * user buffer pointed to by @pbuffer.
+ *
+ * Returns:
+ * This function returns the amount of data that was copied into @pbuffer.
+ **/
+static int
+lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
+ int len, uint32_t ctlregid)
+{
+
+ if (!pbuffer)
+ return 0;
+
+ switch (ctlregid) {
+ case LPFC_CTL_PORT_SEM:
+ len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+ "Port SemReg: 0x%08x\n",
+ readl(phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_SEM_OFFSET));
+ break;
+ case LPFC_CTL_PORT_STA:
+ len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+ "Port StaReg: 0x%08x\n",
+ readl(phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_STA_OFFSET));
+ break;
+ case LPFC_CTL_PORT_CTL:
+ len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+ "Port CtlReg: 0x%08x\n",
+ readl(phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_CTL_OFFSET));
+ break;
+ case LPFC_CTL_PORT_ER1:
+ len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+ "Port Er1Reg: 0x%08x\n",
+ readl(phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_ER1_OFFSET));
+ break;
+ case LPFC_CTL_PORT_ER2:
+ len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+ "Port Er2Reg: 0x%08x\n",
+ readl(phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_ER2_OFFSET));
+ break;
+ case LPFC_CTL_PDEV_CTL:
+ len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+ "PDev CtlReg: 0x%08x\n",
+ readl(phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PDEV_CTL_OFFSET));
+ break;
+ default:
+ break;
+ }
+ return len;
+}
+
+/**
+ * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba port and device registers according
+ * to the idiag command, and copies to user @buf.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ uint32_t ctl_reg_id, i;
+ char *pbuffer;
+ int len = 0;
+
+ /* This is a user read operation */
+ debug->op = LPFC_IDIAG_OP_RD;
+
+ if (!debug->buffer)
+ debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL);
+ if (!debug->buffer)
+ return 0;
+ pbuffer = debug->buffer;
+
+ if (*ppos)
+ return 0;
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD)
+ ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
+ else
+ return 0;
+
+ if (ctl_reg_id == LPFC_CTL_ACC_ALL)
+ for (i = 1; i <= LPFC_CTL_MAX; i++)
+ len = lpfc_idiag_ctlacc_read_reg(phba,
+ pbuffer, len, i);
+ else
+ len = lpfc_idiag_ctlacc_read_reg(phba,
+ pbuffer, len, ctl_reg_id);
+
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and then
+ * perform the syntax check for port and device control register read (dump)
+ * or write (set) command accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ **/
+static ssize_t
+lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ uint32_t ctl_reg_id, value, reg_val = 0;
+ void __iomem *ctl_reg;
+ int rc;
+
+ /* This is a user write operation */
+ debug->op = LPFC_IDIAG_OP_WR;
+
+ rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+ if (rc < 0)
+ return rc;
+
+ /* Sanity check on command line arguments */
+ ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
+ value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX];
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
+ if (rc != LPFC_CTL_ACC_WR_CMD_ARG)
+ goto error_out;
+ if (ctl_reg_id > LPFC_CTL_MAX)
+ goto error_out;
+ } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) {
+ if (rc != LPFC_CTL_ACC_RD_CMD_ARG)
+ goto error_out;
+ if ((ctl_reg_id > LPFC_CTL_MAX) &&
+ (ctl_reg_id != LPFC_CTL_ACC_ALL))
+ goto error_out;
+ } else
+ goto error_out;
+
+ /* Perform the write access operation */
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
+ switch (ctl_reg_id) {
+ case LPFC_CTL_PORT_SEM:
+ ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_SEM_OFFSET;
+ break;
+ case LPFC_CTL_PORT_STA:
+ ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_STA_OFFSET;
+ break;
+ case LPFC_CTL_PORT_CTL:
+ ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_CTL_OFFSET;
+ break;
+ case LPFC_CTL_PORT_ER1:
+ ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_ER1_OFFSET;
+ break;
+ case LPFC_CTL_PORT_ER2:
+ ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_ER2_OFFSET;
+ break;
+ case LPFC_CTL_PDEV_CTL:
+ ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PDEV_CTL_OFFSET;
+ break;
+ default:
+ goto error_out;
+ }
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR)
+ reg_val = value;
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) {
+ reg_val = readl(ctl_reg);
+ reg_val |= value;
+ }
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
+ reg_val = readl(ctl_reg);
+ reg_val &= ~value;
+ }
+ writel(reg_val, ctl_reg);
+ readl(ctl_reg); /* flush */
+ }
+ return nbytes;
+
+error_out:
+ /* Clean out command structure on command error out */
+ memset(&idiag, 0, sizeof(idiag));
+ return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup
+ * @phba: Pointer to HBA context object.
+ * @pbuffer: Pointer to data buffer.
+ *
+ * Description:
+ * This routine gets the driver mailbox access debugfs setup information.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static int
+lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer)
+{
+ uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
+ int len = 0;
+
+ mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
+ mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
+ mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
+ mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
+
+ len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
+ "mbx_dump_map: 0x%08x\n", mbx_dump_map);
+ len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
+ "mbx_dump_cnt: %04d\n", mbx_dump_cnt);
+ len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
+ "mbx_word_cnt: %04d\n", mbx_word_cnt);
+ len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
+ "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd);
+
+ return len;
+}
+
+/**
+ * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba driver mailbox access debugfs setup
+ * information.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ char *pbuffer;
+ int len = 0;
+
+ /* This is a user read operation */
+ debug->op = LPFC_IDIAG_OP_RD;
+
+ if (!debug->buffer)
+ debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL);
+ if (!debug->buffer)
+ return 0;
+ pbuffer = debug->buffer;
+
+ if (*ppos)
+ return 0;
+
+ if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) &&
+ (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP))
+ return 0;
+
+ len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer);
+
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and then
+ * perform the syntax check for driver mailbox command (dump) and sets up the
+ * necessary states in the idiag command struct accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ **/
+static ssize_t
+lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
+ int rc;
+
+ /* This is a user write operation */
+ debug->op = LPFC_IDIAG_OP_WR;
+
+ rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+ if (rc < 0)
+ return rc;
+
+ /* Sanity check on command line arguments */
+ mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
+ mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
+ mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
+ mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) {
+ if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL))
+ goto error_out;
+ if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) &&
+ (mbx_dump_map != LPFC_MBX_DMP_ALL))
+ goto error_out;
+ if (mbx_word_cnt > sizeof(MAILBOX_t))
+ goto error_out;
+ } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) {
+ if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL))
+ goto error_out;
+ if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) &&
+ (mbx_dump_map != LPFC_MBX_DMP_ALL))
+ goto error_out;
+ if (mbx_word_cnt > (BSG_MBOX_SIZE)/4)
+ goto error_out;
+ if (mbx_mbox_cmd != 0x9b)
+ goto error_out;
+ } else
+ goto error_out;
+
+ if (mbx_word_cnt == 0)
+ goto error_out;
+ if (rc != LPFC_MBX_DMP_ARG)
+ goto error_out;
+ if (mbx_mbox_cmd & ~0xff)
+ goto error_out;
+
+ /* condition for stop mailbox dump */
+ if (mbx_dump_cnt == 0)
+ goto reset_out;
+
+ return nbytes;
+
+reset_out:
+ /* Clean out command structure on command error out */
+ memset(&idiag, 0, sizeof(idiag));
+ return nbytes;
+
+error_out:
+ /* Clean out command structure on command error out */
+ memset(&idiag, 0, sizeof(idiag));
+ return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_extacc_avail_get - get the available extents information
+ * @phba: pointer to lpfc hba data structure.
+ * @pbuffer: pointer to internal buffer.
+ * @len: length into the internal buffer data has been copied.
+ *
+ * Description:
+ * This routine is to get the available extent information.
+ *
+ * Returns:
+ * overall lenth of the data read into the internal buffer.
+ **/
+static int
+lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len)
+{
+ uint16_t ext_cnt, ext_size;
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\nAvailable Extents Information:\n");
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tPort Available VPI extents: ");
+ lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI,
+ &ext_cnt, &ext_size);
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "Count %3d, Size %3d\n", ext_cnt, ext_size);
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tPort Available VFI extents: ");
+ lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI,
+ &ext_cnt, &ext_size);
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "Count %3d, Size %3d\n", ext_cnt, ext_size);
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tPort Available RPI extents: ");
+ lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI,
+ &ext_cnt, &ext_size);
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "Count %3d, Size %3d\n", ext_cnt, ext_size);
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tPort Available XRI extents: ");
+ lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI,
+ &ext_cnt, &ext_size);
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "Count %3d, Size %3d\n", ext_cnt, ext_size);
+
+ return len;
+}
+
+/**
+ * lpfc_idiag_extacc_alloc_get - get the allocated extents information
+ * @phba: pointer to lpfc hba data structure.
+ * @pbuffer: pointer to internal buffer.
+ * @len: length into the internal buffer data has been copied.
+ *
+ * Description:
+ * This routine is to get the allocated extent information.
+ *
+ * Returns:
+ * overall lenth of the data read into the internal buffer.
+ **/
+static int
+lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len)
+{
+ uint16_t ext_cnt, ext_size;
+ int rc;
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\nAllocated Extents Information:\n");
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tHost Allocated VPI extents: ");
+ rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI,
+ &ext_cnt, &ext_size);
+ if (!rc)
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "Port %d Extent %3d, Size %3d\n",
+ phba->brd_no, ext_cnt, ext_size);
+ else
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "N/A\n");
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tHost Allocated VFI extents: ");
+ rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI,
+ &ext_cnt, &ext_size);
+ if (!rc)
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "Port %d Extent %3d, Size %3d\n",
+ phba->brd_no, ext_cnt, ext_size);
+ else
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "N/A\n");
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tHost Allocated RPI extents: ");
+ rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI,
+ &ext_cnt, &ext_size);
+ if (!rc)
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "Port %d Extent %3d, Size %3d\n",
+ phba->brd_no, ext_cnt, ext_size);
+ else
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "N/A\n");
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tHost Allocated XRI extents: ");
+ rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI,
+ &ext_cnt, &ext_size);
+ if (!rc)
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "Port %d Extent %3d, Size %3d\n",
+ phba->brd_no, ext_cnt, ext_size);
+ else
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "N/A\n");
+
+ return len;
+}
+
+/**
+ * lpfc_idiag_extacc_drivr_get - get driver extent information
+ * @phba: pointer to lpfc hba data structure.
+ * @pbuffer: pointer to internal buffer.
+ * @len: length into the internal buffer data has been copied.
+ *
+ * Description:
+ * This routine is to get the driver extent information.
+ *
+ * Returns:
+ * overall lenth of the data read into the internal buffer.
+ **/
+static int
+lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len)
+{
+ struct lpfc_rsrc_blks *rsrc_blks;
+ int index;
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\nDriver Extents Information:\n");
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tVPI extents:\n");
+ index = 0;
+ list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) {
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\t\tBlock %3d: Start %4d, Count %4d\n",
+ index, rsrc_blks->rsrc_start,
+ rsrc_blks->rsrc_size);
+ index++;
+ }
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tVFI extents:\n");
+ index = 0;
+ list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list,
+ list) {
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\t\tBlock %3d: Start %4d, Count %4d\n",
+ index, rsrc_blks->rsrc_start,
+ rsrc_blks->rsrc_size);
+ index++;
+ }
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tRPI extents:\n");
+ index = 0;
+ list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list,
+ list) {
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\t\tBlock %3d: Start %4d, Count %4d\n",
+ index, rsrc_blks->rsrc_start,
+ rsrc_blks->rsrc_size);
+ index++;
+ }
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tXRI extents:\n");
+ index = 0;
+ list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list,
+ list) {
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\t\tBlock %3d: Start %4d, Count %4d\n",
+ index, rsrc_blks->rsrc_start,
+ rsrc_blks->rsrc_size);
+ index++;
+ }
+
+ return len;
+}
+
+/**
+ * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and then
+ * perform the syntax check for extent information access commands and sets
+ * up the necessary states in the idiag command struct accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ **/
+static ssize_t
+lpfc_idiag_extacc_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ uint32_t ext_map;
+ int rc;
+
+ /* This is a user write operation */
+ debug->op = LPFC_IDIAG_OP_WR;
+
+ rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+ if (rc < 0)
+ return rc;
+
+ ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
+
+ if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
+ goto error_out;
+ if (rc != LPFC_EXT_ACC_CMD_ARG)
+ goto error_out;
+ if (!(ext_map & LPFC_EXT_ACC_ALL))
+ goto error_out;
+
+ return nbytes;
+error_out:
+ /* Clean out command structure on command error out */
+ memset(&idiag, 0, sizeof(idiag));
+ return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_extacc_read - idiag debugfs read access to extent information
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the proper extent information according to
+ * the idiag command, and copies to user @buf.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ char *pbuffer;
+ uint32_t ext_map;
+ int len = 0;
+
+ /* This is a user read operation */
+ debug->op = LPFC_IDIAG_OP_RD;
+
+ if (!debug->buffer)
+ debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL);
+ if (!debug->buffer)
+ return 0;
+ pbuffer = debug->buffer;
+ if (*ppos)
+ return 0;
+ if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
+ return 0;
+
+ ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
+ if (ext_map & LPFC_EXT_ACC_AVAIL)
+ len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len);
+ if (ext_map & LPFC_EXT_ACC_ALLOC)
+ len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len);
+ if (ext_map & LPFC_EXT_ACC_DRIVR)
+ len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len);
+
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+#undef lpfc_debugfs_op_disc_trc
+static const struct file_operations lpfc_debugfs_op_disc_trc = {
+ .owner = THIS_MODULE,
+ .open = lpfc_debugfs_disc_trc_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_read,
+ .release = lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_nodelist
+static const struct file_operations lpfc_debugfs_op_nodelist = {
+ .owner = THIS_MODULE,
+ .open = lpfc_debugfs_nodelist_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_read,
+ .release = lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_hbqinfo
+static const struct file_operations lpfc_debugfs_op_hbqinfo = {
+ .owner = THIS_MODULE,
+ .open = lpfc_debugfs_hbqinfo_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_read,
+ .release = lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_dumpHBASlim
+static const struct file_operations lpfc_debugfs_op_dumpHBASlim = {
+ .owner = THIS_MODULE,
+ .open = lpfc_debugfs_dumpHBASlim_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_read,
+ .release = lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_dumpHostSlim
+static const struct file_operations lpfc_debugfs_op_dumpHostSlim = {
+ .owner = THIS_MODULE,
+ .open = lpfc_debugfs_dumpHostSlim_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_read,
+ .release = lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_dumpData
+static const struct file_operations lpfc_debugfs_op_dumpData = {
+ .owner = THIS_MODULE,
+ .open = lpfc_debugfs_dumpData_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_read,
+ .write = lpfc_debugfs_dumpDataDif_write,
+ .release = lpfc_debugfs_dumpDataDif_release,
+};
+
+#undef lpfc_debugfs_op_dumpDif
+static const struct file_operations lpfc_debugfs_op_dumpDif = {
+ .owner = THIS_MODULE,
+ .open = lpfc_debugfs_dumpDif_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_read,
+ .write = lpfc_debugfs_dumpDataDif_write,
+ .release = lpfc_debugfs_dumpDataDif_release,
+};
+
+#undef lpfc_debugfs_op_dif_err
+static const struct file_operations lpfc_debugfs_op_dif_err = {
+ .owner = THIS_MODULE,
+ .open = simple_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_dif_err_read,
+ .write = lpfc_debugfs_dif_err_write,
+ .release = lpfc_debugfs_dif_err_release,
+};
+
+#undef lpfc_debugfs_op_slow_ring_trc
+static const struct file_operations lpfc_debugfs_op_slow_ring_trc = {
+ .owner = THIS_MODULE,
+ .open = lpfc_debugfs_slow_ring_trc_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_read,
+ .release = lpfc_debugfs_release,
+};
+
+static struct dentry *lpfc_debugfs_root = NULL;
+static atomic_t lpfc_debugfs_hba_count;
+
+/*
+ * File operations for the iDiag debugfs
+ */
+#undef lpfc_idiag_op_pciCfg
+static const struct file_operations lpfc_idiag_op_pciCfg = {
+ .owner = THIS_MODULE,
+ .open = lpfc_idiag_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_idiag_pcicfg_read,
+ .write = lpfc_idiag_pcicfg_write,
+ .release = lpfc_idiag_cmd_release,
+};
+
+#undef lpfc_idiag_op_barAcc
+static const struct file_operations lpfc_idiag_op_barAcc = {
+ .owner = THIS_MODULE,
+ .open = lpfc_idiag_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_idiag_baracc_read,
+ .write = lpfc_idiag_baracc_write,
+ .release = lpfc_idiag_cmd_release,
+};
+
+#undef lpfc_idiag_op_queInfo
+static const struct file_operations lpfc_idiag_op_queInfo = {
+ .owner = THIS_MODULE,
+ .open = lpfc_idiag_open,
+ .read = lpfc_idiag_queinfo_read,
+ .release = lpfc_idiag_release,
+};
+
+#undef lpfc_idiag_op_queAcc
+static const struct file_operations lpfc_idiag_op_queAcc = {
+ .owner = THIS_MODULE,
+ .open = lpfc_idiag_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_idiag_queacc_read,
+ .write = lpfc_idiag_queacc_write,
+ .release = lpfc_idiag_cmd_release,
+};
+
+#undef lpfc_idiag_op_drbAcc
+static const struct file_operations lpfc_idiag_op_drbAcc = {
+ .owner = THIS_MODULE,
+ .open = lpfc_idiag_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_idiag_drbacc_read,
+ .write = lpfc_idiag_drbacc_write,
+ .release = lpfc_idiag_cmd_release,
+};
+
+#undef lpfc_idiag_op_ctlAcc
+static const struct file_operations lpfc_idiag_op_ctlAcc = {
+ .owner = THIS_MODULE,
+ .open = lpfc_idiag_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_idiag_ctlacc_read,
+ .write = lpfc_idiag_ctlacc_write,
+ .release = lpfc_idiag_cmd_release,
+};
+
+#undef lpfc_idiag_op_mbxAcc
+static const struct file_operations lpfc_idiag_op_mbxAcc = {
+ .owner = THIS_MODULE,
+ .open = lpfc_idiag_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_idiag_mbxacc_read,
+ .write = lpfc_idiag_mbxacc_write,
+ .release = lpfc_idiag_cmd_release,
+};
+
+#undef lpfc_idiag_op_extAcc
+static const struct file_operations lpfc_idiag_op_extAcc = {
+ .owner = THIS_MODULE,
+ .open = lpfc_idiag_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_idiag_extacc_read,
+ .write = lpfc_idiag_extacc_write,
+ .release = lpfc_idiag_cmd_release,
+};
+
+#endif
+
+/* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command
+ * @phba: Pointer to HBA context object.
+ * @dmabuf: Pointer to a DMA buffer descriptor.
+ *
+ * Description:
+ * This routine dump a bsg pass-through non-embedded mailbox command with
+ * external buffer.
+ **/
+void
+lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp,
+ enum mbox_type mbox_tp, enum dma_type dma_tp,
+ enum sta_type sta_tp,
+ struct lpfc_dmabuf *dmabuf, uint32_t ext_buf)
+{
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt;
+ char line_buf[LPFC_MBX_ACC_LBUF_SZ];
+ int len = 0;
+ uint32_t do_dump = 0;
+ uint32_t *pword;
+ uint32_t i;
+
+ if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)
+ return;
+
+ mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
+ mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
+ mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
+ mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
+
+ if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) ||
+ (*mbx_dump_cnt == 0) ||
+ (*mbx_word_cnt == 0))
+ return;
+
+ if (*mbx_mbox_cmd != 0x9B)
+ return;
+
+ if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) {
+ if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) {
+ do_dump |= LPFC_BSG_DMP_MBX_RD_MBX;
+ printk(KERN_ERR "\nRead mbox command (x%x), "
+ "nemb:0x%x, extbuf_cnt:%d:\n",
+ sta_tp, nemb_tp, ext_buf);
+ }
+ }
+ if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) {
+ if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) {
+ do_dump |= LPFC_BSG_DMP_MBX_RD_BUF;
+ printk(KERN_ERR "\nRead mbox buffer (x%x), "
+ "nemb:0x%x, extbuf_seq:%d:\n",
+ sta_tp, nemb_tp, ext_buf);
+ }
+ }
+ if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) {
+ if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) {
+ do_dump |= LPFC_BSG_DMP_MBX_WR_MBX;
+ printk(KERN_ERR "\nWrite mbox command (x%x), "
+ "nemb:0x%x, extbuf_cnt:%d:\n",
+ sta_tp, nemb_tp, ext_buf);
+ }
+ }
+ if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) {
+ if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) {
+ do_dump |= LPFC_BSG_DMP_MBX_WR_BUF;
+ printk(KERN_ERR "\nWrite mbox buffer (x%x), "
+ "nemb:0x%x, extbuf_seq:%d:\n",
+ sta_tp, nemb_tp, ext_buf);
+ }
+ }
+
+ /* dump buffer content */
+ if (do_dump) {
+ pword = (uint32_t *)dmabuf->virt;
+ for (i = 0; i < *mbx_word_cnt; i++) {
+ if (!(i % 8)) {
+ if (i != 0)
+ printk(KERN_ERR "%s\n", line_buf);
+ len = 0;
+ len += snprintf(line_buf+len,
+ LPFC_MBX_ACC_LBUF_SZ-len,
+ "%03d: ", i);
+ }
+ len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
+ "%08x ", (uint32_t)*pword);
+ pword++;
+ }
+ if ((i - 1) % 8)
+ printk(KERN_ERR "%s\n", line_buf);
+ (*mbx_dump_cnt)--;
+ }
+
+ /* Clean out command structure on reaching dump count */
+ if (*mbx_dump_cnt == 0)
+ memset(&idiag, 0, sizeof(idiag));
+ return;
+#endif
+}
+
+/* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command
+ * @phba: Pointer to HBA context object.
+ * @dmabuf: Pointer to a DMA buffer descriptor.
+ *
+ * Description:
+ * This routine dump a pass-through non-embedded mailbox command from issue
+ * mailbox command.
+ **/
+void
+lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox)
+{
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd;
+ char line_buf[LPFC_MBX_ACC_LBUF_SZ];
+ int len = 0;
+ uint32_t *pword;
+ uint8_t *pbyte;
+ uint32_t i, j;
+
+ if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP)
+ return;
+
+ mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
+ mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
+ mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
+ mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
+
+ if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) ||
+ (*mbx_dump_cnt == 0) ||
+ (*mbx_word_cnt == 0))
+ return;
+
+ if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) &&
+ (*mbx_mbox_cmd != pmbox->mbxCommand))
+ return;
+
+ /* dump buffer content */
+ if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) {
+ printk(KERN_ERR "Mailbox command:0x%x dump by word:\n",
+ pmbox->mbxCommand);
+ pword = (uint32_t *)pmbox;
+ for (i = 0; i < *mbx_word_cnt; i++) {
+ if (!(i % 8)) {
+ if (i != 0)
+ printk(KERN_ERR "%s\n", line_buf);
+ len = 0;
+ memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
+ len += snprintf(line_buf+len,
+ LPFC_MBX_ACC_LBUF_SZ-len,
+ "%03d: ", i);
+ }
+ len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
+ "%08x ",
+ ((uint32_t)*pword) & 0xffffffff);
+ pword++;
+ }
+ if ((i - 1) % 8)
+ printk(KERN_ERR "%s\n", line_buf);
+ printk(KERN_ERR "\n");
+ }
+ if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) {
+ printk(KERN_ERR "Mailbox command:0x%x dump by byte:\n",
+ pmbox->mbxCommand);
+ pbyte = (uint8_t *)pmbox;
+ for (i = 0; i < *mbx_word_cnt; i++) {
+ if (!(i % 8)) {
+ if (i != 0)
+ printk(KERN_ERR "%s\n", line_buf);
+ len = 0;
+ memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
+ len += snprintf(line_buf+len,
+ LPFC_MBX_ACC_LBUF_SZ-len,
+ "%03d: ", i);
+ }
+ for (j = 0; j < 4; j++) {
+ len += snprintf(line_buf+len,
+ LPFC_MBX_ACC_LBUF_SZ-len,
+ "%02x",
+ ((uint8_t)*pbyte) & 0xff);
+ pbyte++;
+ }
+ len += snprintf(line_buf+len,
+ LPFC_MBX_ACC_LBUF_SZ-len, " ");
+ }
+ if ((i - 1) % 8)
+ printk(KERN_ERR "%s\n", line_buf);
+ printk(KERN_ERR "\n");
+ }
+ (*mbx_dump_cnt)--;
+
+ /* Clean out command structure on reaching dump count */
+ if (*mbx_dump_cnt == 0)
+ memset(&idiag, 0, sizeof(idiag));
+ return;
+#endif
+}
+
+/**
+ * lpfc_debugfs_initialize - Initialize debugfs for a vport
+ * @vport: The vport pointer to initialize.
+ *
+ * Description:
+ * When Debugfs is configured this routine sets up the lpfc debugfs file system.
+ * If not already created, this routine will create the lpfc directory, and
+ * lpfcX directory (for this HBA), and vportX directory for this vport. It will
+ * also create each file used to access lpfc specific debugfs information.
+ **/
+inline void
+lpfc_debugfs_initialize(struct lpfc_vport *vport)
+{
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ struct lpfc_hba *phba = vport->phba;
+ char name[64];
+ uint32_t num, i;
+ bool pport_setup = false;
+
+ if (!lpfc_debugfs_enable)
+ return;
+
+ /* Setup lpfc root directory */
+ if (!lpfc_debugfs_root) {
+ lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL);
+ atomic_set(&lpfc_debugfs_hba_count, 0);
+ if (!lpfc_debugfs_root) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0408 Cannot create debugfs root\n");
+ goto debug_failed;
+ }
+ }
+ if (!lpfc_debugfs_start_time)
+ lpfc_debugfs_start_time = jiffies;
+
+ /* Setup funcX directory for specific HBA PCI function */
+ snprintf(name, sizeof(name), "fn%d", phba->brd_no);
+ if (!phba->hba_debugfs_root) {
+ pport_setup = true;
+ phba->hba_debugfs_root =
+ debugfs_create_dir(name, lpfc_debugfs_root);
+ if (!phba->hba_debugfs_root) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0412 Cannot create debugfs hba\n");
+ goto debug_failed;
+ }
+ atomic_inc(&lpfc_debugfs_hba_count);
+ atomic_set(&phba->debugfs_vport_count, 0);
+
+ /* Setup hbqinfo */
+ snprintf(name, sizeof(name), "hbqinfo");
+ phba->debug_hbqinfo =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_hbqinfo);
+ if (!phba->debug_hbqinfo) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0411 Cannot create debugfs hbqinfo\n");
+ goto debug_failed;
+ }
+
+ /* Setup dumpHBASlim */
+ if (phba->sli_rev < LPFC_SLI_REV4) {
+ snprintf(name, sizeof(name), "dumpHBASlim");
+ phba->debug_dumpHBASlim =
+ debugfs_create_file(name,
+ S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dumpHBASlim);
+ if (!phba->debug_dumpHBASlim) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0413 Cannot create debugfs "
+ "dumpHBASlim\n");
+ goto debug_failed;
+ }
+ } else
+ phba->debug_dumpHBASlim = NULL;
+
+ /* Setup dumpHostSlim */
+ if (phba->sli_rev < LPFC_SLI_REV4) {
+ snprintf(name, sizeof(name), "dumpHostSlim");
+ phba->debug_dumpHostSlim =
+ debugfs_create_file(name,
+ S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dumpHostSlim);
+ if (!phba->debug_dumpHostSlim) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0414 Cannot create debugfs "
+ "dumpHostSlim\n");
+ goto debug_failed;
+ }
+ } else
+ phba->debug_dumpHostSlim = NULL;
+
+ /* Setup dumpData */
+ snprintf(name, sizeof(name), "dumpData");
+ phba->debug_dumpData =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dumpData);
+ if (!phba->debug_dumpData) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0800 Cannot create debugfs dumpData\n");
+ goto debug_failed;
+ }
+
+ /* Setup dumpDif */
+ snprintf(name, sizeof(name), "dumpDif");
+ phba->debug_dumpDif =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dumpDif);
+ if (!phba->debug_dumpDif) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0801 Cannot create debugfs dumpDif\n");
+ goto debug_failed;
+ }
+
+ /* Setup DIF Error Injections */
+ snprintf(name, sizeof(name), "InjErrLBA");
+ phba->debug_InjErrLBA =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dif_err);
+ if (!phba->debug_InjErrLBA) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0807 Cannot create debugfs InjErrLBA\n");
+ goto debug_failed;
+ }
+ phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
+
+ snprintf(name, sizeof(name), "InjErrNPortID");
+ phba->debug_InjErrNPortID =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dif_err);
+ if (!phba->debug_InjErrNPortID) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0809 Cannot create debugfs InjErrNPortID\n");
+ goto debug_failed;
+ }
+
+ snprintf(name, sizeof(name), "InjErrWWPN");
+ phba->debug_InjErrWWPN =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dif_err);
+ if (!phba->debug_InjErrWWPN) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0810 Cannot create debugfs InjErrWWPN\n");
+ goto debug_failed;
+ }
+
+ snprintf(name, sizeof(name), "writeGuardInjErr");
+ phba->debug_writeGuard =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dif_err);
+ if (!phba->debug_writeGuard) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0802 Cannot create debugfs writeGuard\n");
+ goto debug_failed;
+ }
+
+ snprintf(name, sizeof(name), "writeAppInjErr");
+ phba->debug_writeApp =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dif_err);
+ if (!phba->debug_writeApp) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0803 Cannot create debugfs writeApp\n");
+ goto debug_failed;
+ }
+
+ snprintf(name, sizeof(name), "writeRefInjErr");
+ phba->debug_writeRef =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dif_err);
+ if (!phba->debug_writeRef) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0804 Cannot create debugfs writeRef\n");
+ goto debug_failed;
+ }
+
+ snprintf(name, sizeof(name), "readGuardInjErr");
+ phba->debug_readGuard =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dif_err);
+ if (!phba->debug_readGuard) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0808 Cannot create debugfs readGuard\n");
+ goto debug_failed;
+ }
+
+ snprintf(name, sizeof(name), "readAppInjErr");
+ phba->debug_readApp =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dif_err);
+ if (!phba->debug_readApp) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0805 Cannot create debugfs readApp\n");
+ goto debug_failed;
+ }
+
+ snprintf(name, sizeof(name), "readRefInjErr");
+ phba->debug_readRef =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dif_err);
+ if (!phba->debug_readRef) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0806 Cannot create debugfs readApp\n");
+ goto debug_failed;
+ }
+
+ /* Setup slow ring trace */
+ if (lpfc_debugfs_max_slow_ring_trc) {
+ num = lpfc_debugfs_max_slow_ring_trc - 1;
+ if (num & lpfc_debugfs_max_slow_ring_trc) {
+ /* Change to be a power of 2 */
+ num = lpfc_debugfs_max_slow_ring_trc;
+ i = 0;
+ while (num > 1) {
+ num = num >> 1;
+ i++;
+ }
+ lpfc_debugfs_max_slow_ring_trc = (1 << i);
+ printk(KERN_ERR
+ "lpfc_debugfs_max_disc_trc changed to "
+ "%d\n", lpfc_debugfs_max_disc_trc);
+ }
+ }
+
+ snprintf(name, sizeof(name), "slow_ring_trace");
+ phba->debug_slow_ring_trc =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_slow_ring_trc);
+ if (!phba->debug_slow_ring_trc) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0415 Cannot create debugfs "
+ "slow_ring_trace\n");
+ goto debug_failed;
+ }
+ if (!phba->slow_ring_trc) {
+ phba->slow_ring_trc = kmalloc(
+ (sizeof(struct lpfc_debugfs_trc) *
+ lpfc_debugfs_max_slow_ring_trc),
+ GFP_KERNEL);
+ if (!phba->slow_ring_trc) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0416 Cannot create debugfs "
+ "slow_ring buffer\n");
+ goto debug_failed;
+ }
+ atomic_set(&phba->slow_ring_trc_cnt, 0);
+ memset(phba->slow_ring_trc, 0,
+ (sizeof(struct lpfc_debugfs_trc) *
+ lpfc_debugfs_max_slow_ring_trc));
+ }
+ }
+
+ snprintf(name, sizeof(name), "vport%d", vport->vpi);
+ if (!vport->vport_debugfs_root) {
+ vport->vport_debugfs_root =
+ debugfs_create_dir(name, phba->hba_debugfs_root);
+ if (!vport->vport_debugfs_root) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0417 Can't create debugfs\n");
+ goto debug_failed;
+ }
+ atomic_inc(&phba->debugfs_vport_count);
+ }
+
+ if (lpfc_debugfs_max_disc_trc) {
+ num = lpfc_debugfs_max_disc_trc - 1;
+ if (num & lpfc_debugfs_max_disc_trc) {
+ /* Change to be a power of 2 */
+ num = lpfc_debugfs_max_disc_trc;
+ i = 0;
+ while (num > 1) {
+ num = num >> 1;
+ i++;
+ }
+ lpfc_debugfs_max_disc_trc = (1 << i);
+ printk(KERN_ERR
+ "lpfc_debugfs_max_disc_trc changed to %d\n",
+ lpfc_debugfs_max_disc_trc);
+ }
+ }
+
+ vport->disc_trc = kzalloc(
+ (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc),
+ GFP_KERNEL);
+
+ if (!vport->disc_trc) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0418 Cannot create debugfs disc trace "
+ "buffer\n");
+ goto debug_failed;
+ }
+ atomic_set(&vport->disc_trc_cnt, 0);
+
+ snprintf(name, sizeof(name), "discovery_trace");
+ vport->debug_disc_trc =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ vport->vport_debugfs_root,
+ vport, &lpfc_debugfs_op_disc_trc);
+ if (!vport->debug_disc_trc) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0419 Cannot create debugfs "
+ "discovery_trace\n");
+ goto debug_failed;
+ }
+ snprintf(name, sizeof(name), "nodelist");
+ vport->debug_nodelist =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ vport->vport_debugfs_root,
+ vport, &lpfc_debugfs_op_nodelist);
+ if (!vport->debug_nodelist) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "2985 Can't create debugfs nodelist\n");
+ goto debug_failed;
+ }
+
+ /*
+ * The following section is for additional directories/files for the
+ * physical port.
+ */
+
+ if (!pport_setup)
+ goto debug_failed;
+
+ /*
+ * iDiag debugfs root entry points for SLI4 device only
+ */
+ if (phba->sli_rev < LPFC_SLI_REV4)
+ goto debug_failed;
+
+ snprintf(name, sizeof(name), "iDiag");
+ if (!phba->idiag_root) {
+ phba->idiag_root =
+ debugfs_create_dir(name, phba->hba_debugfs_root);
+ if (!phba->idiag_root) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "2922 Can't create idiag debugfs\n");
+ goto debug_failed;
+ }
+ /* Initialize iDiag data structure */
+ memset(&idiag, 0, sizeof(idiag));
+ }
+
+ /* iDiag read PCI config space */
+ snprintf(name, sizeof(name), "pciCfg");
+ if (!phba->idiag_pci_cfg) {
+ phba->idiag_pci_cfg =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->idiag_root, phba, &lpfc_idiag_op_pciCfg);
+ if (!phba->idiag_pci_cfg) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "2923 Can't create idiag debugfs\n");
+ goto debug_failed;
+ }
+ idiag.offset.last_rd = 0;
+ }
+
+ /* iDiag PCI BAR access */
+ snprintf(name, sizeof(name), "barAcc");
+ if (!phba->idiag_bar_acc) {
+ phba->idiag_bar_acc =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->idiag_root, phba, &lpfc_idiag_op_barAcc);
+ if (!phba->idiag_bar_acc) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "3056 Can't create idiag debugfs\n");
+ goto debug_failed;
+ }
+ idiag.offset.last_rd = 0;
+ }
+
+ /* iDiag get PCI function queue information */
+ snprintf(name, sizeof(name), "queInfo");
+ if (!phba->idiag_que_info) {
+ phba->idiag_que_info =
+ debugfs_create_file(name, S_IFREG|S_IRUGO,
+ phba->idiag_root, phba, &lpfc_idiag_op_queInfo);
+ if (!phba->idiag_que_info) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "2924 Can't create idiag debugfs\n");
+ goto debug_failed;
+ }
+ }
+
+ /* iDiag access PCI function queue */
+ snprintf(name, sizeof(name), "queAcc");
+ if (!phba->idiag_que_acc) {
+ phba->idiag_que_acc =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->idiag_root, phba, &lpfc_idiag_op_queAcc);
+ if (!phba->idiag_que_acc) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "2926 Can't create idiag debugfs\n");
+ goto debug_failed;
+ }
+ }
+
+ /* iDiag access PCI function doorbell registers */
+ snprintf(name, sizeof(name), "drbAcc");
+ if (!phba->idiag_drb_acc) {
+ phba->idiag_drb_acc =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->idiag_root, phba, &lpfc_idiag_op_drbAcc);
+ if (!phba->idiag_drb_acc) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "2927 Can't create idiag debugfs\n");
+ goto debug_failed;
+ }
+ }
+
+ /* iDiag access PCI function control registers */
+ snprintf(name, sizeof(name), "ctlAcc");
+ if (!phba->idiag_ctl_acc) {
+ phba->idiag_ctl_acc =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc);
+ if (!phba->idiag_ctl_acc) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "2981 Can't create idiag debugfs\n");
+ goto debug_failed;
+ }
+ }
+
+ /* iDiag access mbox commands */
+ snprintf(name, sizeof(name), "mbxAcc");
+ if (!phba->idiag_mbx_acc) {
+ phba->idiag_mbx_acc =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc);
+ if (!phba->idiag_mbx_acc) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "2980 Can't create idiag debugfs\n");
+ goto debug_failed;
+ }
+ }
+
+ /* iDiag extents access commands */
+ if (phba->sli4_hba.extents_in_use) {
+ snprintf(name, sizeof(name), "extAcc");
+ if (!phba->idiag_ext_acc) {
+ phba->idiag_ext_acc =
+ debugfs_create_file(name,
+ S_IFREG|S_IRUGO|S_IWUSR,
+ phba->idiag_root, phba,
+ &lpfc_idiag_op_extAcc);
+ if (!phba->idiag_ext_acc) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "2986 Cant create "
+ "idiag debugfs\n");
+ goto debug_failed;
+ }
+ }
+ }
+
+debug_failed:
+ return;
+#endif
+}
+
+/**
+ * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport
+ * @vport: The vport pointer to remove from debugfs.
+ *
+ * Description:
+ * When Debugfs is configured this routine removes debugfs file system elements
+ * that are specific to this vport. It also checks to see if there are any
+ * users left for the debugfs directories associated with the HBA and driver. If
+ * this is the last user of the HBA directory or driver directory then it will
+ * remove those from the debugfs infrastructure as well.
+ **/
+inline void
+lpfc_debugfs_terminate(struct lpfc_vport *vport)
+{
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ struct lpfc_hba *phba = vport->phba;
+
+ if (vport->disc_trc) {
+ kfree(vport->disc_trc);
+ vport->disc_trc = NULL;
+ }
+ if (vport->debug_disc_trc) {
+ debugfs_remove(vport->debug_disc_trc); /* discovery_trace */
+ vport->debug_disc_trc = NULL;
+ }
+ if (vport->debug_nodelist) {
+ debugfs_remove(vport->debug_nodelist); /* nodelist */
+ vport->debug_nodelist = NULL;
+ }
+ if (vport->vport_debugfs_root) {
+ debugfs_remove(vport->vport_debugfs_root); /* vportX */
+ vport->vport_debugfs_root = NULL;
+ atomic_dec(&phba->debugfs_vport_count);
+ }
+ if (atomic_read(&phba->debugfs_vport_count) == 0) {
+
+ if (phba->debug_hbqinfo) {
+ debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */
+ phba->debug_hbqinfo = NULL;
+ }
+ if (phba->debug_dumpHBASlim) {
+ debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */
+ phba->debug_dumpHBASlim = NULL;
+ }
+ if (phba->debug_dumpHostSlim) {
+ debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */
+ phba->debug_dumpHostSlim = NULL;
+ }
+ if (phba->debug_dumpData) {
+ debugfs_remove(phba->debug_dumpData); /* dumpData */
+ phba->debug_dumpData = NULL;
+ }
+
+ if (phba->debug_dumpDif) {
+ debugfs_remove(phba->debug_dumpDif); /* dumpDif */
+ phba->debug_dumpDif = NULL;
+ }
+ if (phba->debug_InjErrLBA) {
+ debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */
+ phba->debug_InjErrLBA = NULL;
+ }
+ if (phba->debug_InjErrNPortID) { /* InjErrNPortID */
+ debugfs_remove(phba->debug_InjErrNPortID);
+ phba->debug_InjErrNPortID = NULL;
+ }
+ if (phba->debug_InjErrWWPN) {
+ debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */
+ phba->debug_InjErrWWPN = NULL;
+ }
+ if (phba->debug_writeGuard) {
+ debugfs_remove(phba->debug_writeGuard); /* writeGuard */
+ phba->debug_writeGuard = NULL;
+ }
+ if (phba->debug_writeApp) {
+ debugfs_remove(phba->debug_writeApp); /* writeApp */
+ phba->debug_writeApp = NULL;
+ }
+ if (phba->debug_writeRef) {
+ debugfs_remove(phba->debug_writeRef); /* writeRef */
+ phba->debug_writeRef = NULL;
+ }
+ if (phba->debug_readGuard) {
+ debugfs_remove(phba->debug_readGuard); /* readGuard */
+ phba->debug_readGuard = NULL;
+ }
+ if (phba->debug_readApp) {
+ debugfs_remove(phba->debug_readApp); /* readApp */
+ phba->debug_readApp = NULL;
+ }
+ if (phba->debug_readRef) {
+ debugfs_remove(phba->debug_readRef); /* readRef */
+ phba->debug_readRef = NULL;
+ }
+
+ if (phba->slow_ring_trc) {
+ kfree(phba->slow_ring_trc);
+ phba->slow_ring_trc = NULL;
+ }
+ if (phba->debug_slow_ring_trc) {
+ /* slow_ring_trace */
+ debugfs_remove(phba->debug_slow_ring_trc);
+ phba->debug_slow_ring_trc = NULL;
+ }
+
+ /*
+ * iDiag release
+ */
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ if (phba->idiag_ext_acc) {
+ /* iDiag extAcc */
+ debugfs_remove(phba->idiag_ext_acc);
+ phba->idiag_ext_acc = NULL;
+ }
+ if (phba->idiag_mbx_acc) {
+ /* iDiag mbxAcc */
+ debugfs_remove(phba->idiag_mbx_acc);
+ phba->idiag_mbx_acc = NULL;
+ }
+ if (phba->idiag_ctl_acc) {
+ /* iDiag ctlAcc */
+ debugfs_remove(phba->idiag_ctl_acc);
+ phba->idiag_ctl_acc = NULL;
+ }
+ if (phba->idiag_drb_acc) {
+ /* iDiag drbAcc */
+ debugfs_remove(phba->idiag_drb_acc);
+ phba->idiag_drb_acc = NULL;
+ }
+ if (phba->idiag_que_acc) {
+ /* iDiag queAcc */
+ debugfs_remove(phba->idiag_que_acc);
+ phba->idiag_que_acc = NULL;
+ }
+ if (phba->idiag_que_info) {
+ /* iDiag queInfo */
+ debugfs_remove(phba->idiag_que_info);
+ phba->idiag_que_info = NULL;
+ }
+ if (phba->idiag_bar_acc) {
+ /* iDiag barAcc */
+ debugfs_remove(phba->idiag_bar_acc);
+ phba->idiag_bar_acc = NULL;
+ }
+ if (phba->idiag_pci_cfg) {
+ /* iDiag pciCfg */
+ debugfs_remove(phba->idiag_pci_cfg);
+ phba->idiag_pci_cfg = NULL;
+ }
+
+ /* Finally remove the iDiag debugfs root */
+ if (phba->idiag_root) {
+ /* iDiag root */
+ debugfs_remove(phba->idiag_root);
+ phba->idiag_root = NULL;
+ }
+ }
+
+ if (phba->hba_debugfs_root) {
+ debugfs_remove(phba->hba_debugfs_root); /* fnX */
+ phba->hba_debugfs_root = NULL;
+ atomic_dec(&lpfc_debugfs_hba_count);
+ }
+
+ if (atomic_read(&lpfc_debugfs_hba_count) == 0) {
+ debugfs_remove(lpfc_debugfs_root); /* lpfc */
+ lpfc_debugfs_root = NULL;
+ }
+ }
+#endif
+ return;
+}
+
+/*
+ * Driver debug utility routines outside of debugfs. The debug utility
+ * routines implemented here is intended to be used in the instrumented
+ * debug driver for debugging host or port issues.
+ */
+
+/**
+ * lpfc_debug_dump_all_queues - dump all the queues with a hba
+ * @phba: Pointer to HBA context object.
+ *
+ * This function dumps entries of all the queues asociated with the @phba.
+ **/
+void
+lpfc_debug_dump_all_queues(struct lpfc_hba *phba)
+{
+ int fcp_wqidx;
+
+ /*
+ * Dump Work Queues (WQs)
+ */
+ lpfc_debug_dump_mbx_wq(phba);
+ lpfc_debug_dump_els_wq(phba);
+
+ for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
+ lpfc_debug_dump_fcp_wq(phba, fcp_wqidx);
+
+ lpfc_debug_dump_hdr_rq(phba);
+ lpfc_debug_dump_dat_rq(phba);
+ /*
+ * Dump Complete Queues (CQs)
+ */
+ lpfc_debug_dump_mbx_cq(phba);
+ lpfc_debug_dump_els_cq(phba);
+
+ for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
+ lpfc_debug_dump_fcp_cq(phba, fcp_wqidx);
+
+ /*
+ * Dump Event Queues (EQs)
+ */
+ for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
+ lpfc_debug_dump_hba_eq(phba, fcp_wqidx);
+}