linux/drivers/scsi/qedf/qedf_dbg.c
Dupuis, Chad 61d8658b4a scsi: qedf: Add QLogic FastLinQ offload FCoE driver framework.
The QLogic FastLinQ Driver for FCoE (qedf) is the FCoE specific module
for 41000 Series Converged Network Adapters by QLogic. This patch
consists of following changes:

- MAINTAINERS Makefile and Kconfig changes for qedf
- PCI driver registration
- libfc/fcoe host level initialization
- SCSI host template initialization and callbacks
- Debugfs and log level infrastructure
- Link handling
- Firmware interface structures
- QED core module initialization
- Light L2 interface callbacks
- I/O request initialization
- Firmware I/O completion handling
- Firmware ELS request/response handling
- FIP request/response handled by the driver itself

Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@cavium.com>
Signed-off-by: Arun Easi <arun.easi@cavium.com>
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-22 19:10:59 -05:00

196 lines
3.8 KiB
C

/*
* QLogic FCoE Offload Driver
* Copyright (c) 2016 Cavium Inc.
*
* This software is available under the terms of the GNU General Public License
* (GPL) Version 2, available from the file COPYING in the main directory of
* this source tree.
*/
#include "qedf_dbg.h"
#include <linux/vmalloc.h>
void
qedf_dbg_err(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
const char *fmt, ...)
{
va_list va;
struct va_format vaf;
char nfunc[32];
memset(nfunc, 0, sizeof(nfunc));
memcpy(nfunc, func, sizeof(nfunc) - 1);
va_start(va, fmt);
vaf.fmt = fmt;
vaf.va = &va;
if (likely(qedf) && likely(qedf->pdev))
pr_err("[%s]:[%s:%d]:%d: %pV", dev_name(&(qedf->pdev->dev)),
nfunc, line, qedf->host_no, &vaf);
else
pr_err("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
va_end(va);
}
void
qedf_dbg_warn(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
const char *fmt, ...)
{
va_list va;
struct va_format vaf;
char nfunc[32];
memset(nfunc, 0, sizeof(nfunc));
memcpy(nfunc, func, sizeof(nfunc) - 1);
va_start(va, fmt);
vaf.fmt = fmt;
vaf.va = &va;
if (!(qedf_debug & QEDF_LOG_WARN))
goto ret;
if (likely(qedf) && likely(qedf->pdev))
pr_warn("[%s]:[%s:%d]:%d: %pV", dev_name(&(qedf->pdev->dev)),
nfunc, line, qedf->host_no, &vaf);
else
pr_warn("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
ret:
va_end(va);
}
void
qedf_dbg_notice(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
const char *fmt, ...)
{
va_list va;
struct va_format vaf;
char nfunc[32];
memset(nfunc, 0, sizeof(nfunc));
memcpy(nfunc, func, sizeof(nfunc) - 1);
va_start(va, fmt);
vaf.fmt = fmt;
vaf.va = &va;
if (!(qedf_debug & QEDF_LOG_NOTICE))
goto ret;
if (likely(qedf) && likely(qedf->pdev))
pr_notice("[%s]:[%s:%d]:%d: %pV",
dev_name(&(qedf->pdev->dev)), nfunc, line,
qedf->host_no, &vaf);
else
pr_notice("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
ret:
va_end(va);
}
void
qedf_dbg_info(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
u32 level, const char *fmt, ...)
{
va_list va;
struct va_format vaf;
char nfunc[32];
memset(nfunc, 0, sizeof(nfunc));
memcpy(nfunc, func, sizeof(nfunc) - 1);
va_start(va, fmt);
vaf.fmt = fmt;
vaf.va = &va;
if (!(qedf_debug & level))
goto ret;
if (likely(qedf) && likely(qedf->pdev))
pr_info("[%s]:[%s:%d]:%d: %pV", dev_name(&(qedf->pdev->dev)),
nfunc, line, qedf->host_no, &vaf);
else
pr_info("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
ret:
va_end(va);
}
int
qedf_alloc_grc_dump_buf(u8 **buf, uint32_t len)
{
*buf = vmalloc(len);
if (!(*buf))
return -ENOMEM;
memset(*buf, 0, len);
return 0;
}
void
qedf_free_grc_dump_buf(uint8_t **buf)
{
vfree(*buf);
*buf = NULL;
}
int
qedf_get_grc_dump(struct qed_dev *cdev, const struct qed_common_ops *common,
u8 **buf, uint32_t *grcsize)
{
if (!*buf)
return -EINVAL;
return common->dbg_grc(cdev, *buf, grcsize);
}
void
qedf_uevent_emit(struct Scsi_Host *shost, u32 code, char *msg)
{
char event_string[40];
char *envp[] = {event_string, NULL};
memset(event_string, 0, sizeof(event_string));
switch (code) {
case QEDF_UEVENT_CODE_GRCDUMP:
if (msg)
strncpy(event_string, msg, strlen(msg));
else
sprintf(event_string, "GRCDUMP=%u", shost->host_no);
break;
default:
/* do nothing */
break;
}
kobject_uevent_env(&shost->shost_gendev.kobj, KOBJ_CHANGE, envp);
}
int
qedf_create_sysfs_attr(struct Scsi_Host *shost, struct sysfs_bin_attrs *iter)
{
int ret = 0;
for (; iter->name; iter++) {
ret = sysfs_create_bin_file(&shost->shost_gendev.kobj,
iter->attr);
if (ret)
pr_err("Unable to create sysfs %s attr, err(%d).\n",
iter->name, ret);
}
return ret;
}
void
qedf_remove_sysfs_attr(struct Scsi_Host *shost, struct sysfs_bin_attrs *iter)
{
for (; iter->name; iter++)
sysfs_remove_bin_file(&shost->shost_gendev.kobj, iter->attr);
}