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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-24 08:46:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-24 08:46:03 -0700 |
| commit | cf9610f9116d55c5a66ef9f1faecacabd93a9322 (patch) | |
| tree | 757a3d280760c654767631cab5ad8af2d86d1848 /drivers/scsi/scsi_logging.c | |
| download | linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.tar.gz linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.zip | |
Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlgrafted
Pull pin control updates from Linus Walleij:
"Core changes:
- Use the non-blocking mux_state_try_select() in the generic MUX pin
control back-end
- Free pin maps on pinctrl_generic_to_map() failure in the core
helpers
New hardware pin control:
- Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC
(this is for the low power audio, LPASS = Low Power Audio SubSystem
portions)
- Upboard support on top of the Intel pin controller
- Apple T6030 and T6031 support (just compatible strings)
- Samsung Exynos 8855 SoC
- Mediatek MT6858 SoC
- Rockchip RK3308B and RV1106 SoCs
- Airoha EN7523 and AN7563 SoCs
Improvements:
- Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable
- Qualcomm improvements on top of the Qualcomm PDC (power domain
controller) irqchip improvements from tglx:s tree
- Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups
- The NPCM8xx driver has been put into shape fixing many pin and
group definitions
- Some non-urgent Tegra 264 pin assignments are fixed up
- Some non-urgent fixups to Airoha AN7581 and AN7583 registers and
pin assignments, missing features etc"
* tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits)
dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema
pinctrl: meson: sync some modify from A4
pinctrl: meson: a4: Add input enable pin configuration
pinctrl: realtek: rtd1625: remove unused group name spdif_sel
pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13
dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema
Revert "Merge branch 'ib-rsk7204' into devel"
pinctrl: rockchip: Add RV1106 pinctrl support
dt-bindings: pinctrl: rockchip: Add RV1106 compatible
pinctrl: rockchip: Decode drive strength in the get function
pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable
pinctrl: airoha: add support of an7563 SoC
dt-bindings: pinctrl: airoha: add support of an7563 pin controller
pinctrl: airoha: try to find chip scu node by phandle first
pinctrl: airoha: add support of en7523 SoC
dt-bindings: pinctrl: airoha: add support of en7523 pin controller
pinctrl: airoha: an7583: add support for olt pinmux
pinctrl: airoha: an7583: add support for pon_alt pinmux
pinctrl: airoha: an7583: add support for npu_uart pinmux
dt-bindings: pinctrl: airoha: an7583: add missed features
...
Diffstat (limited to 'drivers/scsi/scsi_logging.c')
| -rw-r--r-- | drivers/scsi/scsi_logging.c | 438 |
1 files changed, 438 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_logging.c b/drivers/scsi/scsi_logging.c new file mode 100644 index 000000000..3cd0d3074 --- /dev/null +++ b/drivers/scsi/scsi_logging.c @@ -0,0 +1,438 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * scsi_logging.c + * + * Copyright (C) 2014 SUSE Linux Products GmbH + * Copyright (C) 2014 Hannes Reinecke <hare@suse.de> + */ + +#include <linux/kernel.h> +#include <linux/atomic.h> + +#include <scsi/scsi.h> +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_eh.h> +#include <scsi/scsi_dbg.h> + +static char *scsi_log_reserve_buffer(size_t *len) +{ + *len = 128; + return kmalloc(*len, GFP_ATOMIC); +} + +static void scsi_log_release_buffer(char *bufptr) +{ + kfree(bufptr); +} + +static inline const char *scmd_name(struct scsi_cmnd *scmd) +{ + const struct request *rq = scsi_cmd_to_rq(scmd); + + if (!rq->q || !rq->q->disk) + return NULL; + return rq->q->disk->disk_name; +} + +static size_t sdev_format_header(char *logbuf, size_t logbuf_len, + const char *name, int tag) +{ + size_t off = 0; + + if (name) + off += scnprintf(logbuf + off, logbuf_len - off, + "[%s] ", name); + + if (WARN_ON(off >= logbuf_len)) + return off; + + if (tag >= 0) + off += scnprintf(logbuf + off, logbuf_len - off, + "tag#%d ", tag); + return off; +} + +void sdev_prefix_printk(const char *level, const struct scsi_device *sdev, + const char *name, const char *fmt, ...) +{ + va_list args; + char *logbuf; + size_t off = 0, logbuf_len; + + if (!sdev) + return; + + logbuf = scsi_log_reserve_buffer(&logbuf_len); + if (!logbuf) + return; + + if (name) + off += scnprintf(logbuf + off, logbuf_len - off, + "[%s] ", name); + if (!WARN_ON(off >= logbuf_len)) { + va_start(args, fmt); + off += vscnprintf(logbuf + off, logbuf_len - off, fmt, args); + va_end(args); + } + dev_printk(level, &sdev->sdev_gendev, "%s", logbuf); + scsi_log_release_buffer(logbuf); +} +EXPORT_SYMBOL(sdev_prefix_printk); + +void scmd_printk(const char *level, struct scsi_cmnd *scmd, const char *fmt, + ...) +{ + va_list args; + char *logbuf; + size_t off = 0, logbuf_len; + + if (!scmd) + return; + + logbuf = scsi_log_reserve_buffer(&logbuf_len); + if (!logbuf) + return; + off = sdev_format_header(logbuf, logbuf_len, scmd_name(scmd), + scsi_cmd_to_rq(scmd)->tag); + if (off < logbuf_len) { + va_start(args, fmt); + off += vscnprintf(logbuf + off, logbuf_len - off, fmt, args); + va_end(args); + } + dev_printk(level, &scmd->device->sdev_gendev, "%s", logbuf); + scsi_log_release_buffer(logbuf); +} +EXPORT_SYMBOL(scmd_printk); + +static size_t scsi_format_opcode_name(char *buffer, size_t buf_len, + const unsigned char *cdbp) +{ + int sa, cdb0; + const char *cdb_name = NULL, *sa_name = NULL; + size_t off; + + cdb0 = cdbp[0]; + if (cdb0 == VARIABLE_LENGTH_CMD) { + int len = scsi_varlen_cdb_length(cdbp); + + if (len < 10) { + off = scnprintf(buffer, buf_len, + "short variable length command, len=%d", + len); + return off; + } + sa = (cdbp[8] << 8) + cdbp[9]; + } else + sa = cdbp[1] & 0x1f; + + if (!scsi_opcode_sa_name(cdb0, sa, &cdb_name, &sa_name)) { + if (cdb_name) + off = scnprintf(buffer, buf_len, "%s", cdb_name); + else { + off = scnprintf(buffer, buf_len, "opcode=0x%x", cdb0); + if (WARN_ON(off >= buf_len)) + return off; + if (cdb0 >= VENDOR_SPECIFIC_CDB) + off += scnprintf(buffer + off, buf_len - off, + " (vendor)"); + else if (cdb0 >= 0x60 && cdb0 < 0x7e) + off += scnprintf(buffer + off, buf_len - off, + " (reserved)"); + } + } else { + if (sa_name) + off = scnprintf(buffer, buf_len, "%s", sa_name); + else if (cdb_name) + off = scnprintf(buffer, buf_len, "%s, sa=0x%x", + cdb_name, sa); + else + off = scnprintf(buffer, buf_len, + "opcode=0x%x, sa=0x%x", cdb0, sa); + } + WARN_ON(off >= buf_len); + return off; +} + +size_t __scsi_format_command(char *logbuf, size_t logbuf_len, + const unsigned char *cdb, size_t cdb_len) +{ + int len, k; + size_t off; + + off = scsi_format_opcode_name(logbuf, logbuf_len, cdb); + if (off >= logbuf_len) + return off; + len = scsi_command_size(cdb); + if (cdb_len < len) + len = cdb_len; + /* print out all bytes in cdb */ + for (k = 0; k < len; ++k) { + if (off > logbuf_len - 3) + break; + off += scnprintf(logbuf + off, logbuf_len - off, + " %02x", cdb[k]); + } + return off; +} +EXPORT_SYMBOL(__scsi_format_command); + +void scsi_print_command(struct scsi_cmnd *cmd) +{ + int k; + char *logbuf; + size_t off, logbuf_len; + + logbuf = scsi_log_reserve_buffer(&logbuf_len); + if (!logbuf) + return; + + off = sdev_format_header(logbuf, logbuf_len, + scmd_name(cmd), scsi_cmd_to_rq(cmd)->tag); + if (off >= logbuf_len) + goto out_printk; + off += scnprintf(logbuf + off, logbuf_len - off, "CDB: "); + if (WARN_ON(off >= logbuf_len)) + goto out_printk; + + off += scsi_format_opcode_name(logbuf + off, logbuf_len - off, + cmd->cmnd); + if (off >= logbuf_len) + goto out_printk; + + /* print out all bytes in cdb */ + if (cmd->cmd_len > 16) { + /* Print opcode in one line and use separate lines for CDB */ + off += scnprintf(logbuf + off, logbuf_len - off, "\n"); + dev_printk(KERN_INFO, &cmd->device->sdev_gendev, "%s", logbuf); + for (k = 0; k < cmd->cmd_len; k += 16) { + size_t linelen = min(cmd->cmd_len - k, 16); + + off = sdev_format_header(logbuf, logbuf_len, + scmd_name(cmd), + scsi_cmd_to_rq(cmd)->tag); + if (!WARN_ON(off > logbuf_len - 58)) { + off += scnprintf(logbuf + off, logbuf_len - off, + "CDB[%02x]: ", k); + hex_dump_to_buffer(&cmd->cmnd[k], linelen, + 16, 1, logbuf + off, + logbuf_len - off, false); + } + dev_printk(KERN_INFO, &cmd->device->sdev_gendev, "%s", + logbuf); + } + goto out; + } + if (!WARN_ON(off > logbuf_len - 49)) { + off += scnprintf(logbuf + off, logbuf_len - off, " "); + hex_dump_to_buffer(cmd->cmnd, cmd->cmd_len, 16, 1, + logbuf + off, logbuf_len - off, + false); + } +out_printk: + dev_printk(KERN_INFO, &cmd->device->sdev_gendev, "%s", logbuf); +out: + scsi_log_release_buffer(logbuf); +} +EXPORT_SYMBOL(scsi_print_command); + +static size_t +scsi_format_extd_sense(char *buffer, size_t buf_len, + unsigned char asc, unsigned char ascq) +{ + size_t off = 0; + const char *extd_sense_fmt = NULL; + const char *extd_sense_str = scsi_extd_sense_format(asc, ascq, + &extd_sense_fmt); + + if (extd_sense_str) { + off = scnprintf(buffer, buf_len, "Add. Sense: %s", + extd_sense_str); + if (extd_sense_fmt) + off += scnprintf(buffer + off, buf_len - off, + "(%s%x)", extd_sense_fmt, ascq); + } else { + if (asc >= 0x80) + off = scnprintf(buffer, buf_len, "<<vendor>>"); + off += scnprintf(buffer + off, buf_len - off, + "ASC=0x%x ", asc); + if (ascq >= 0x80) + off += scnprintf(buffer + off, buf_len - off, + "<<vendor>>"); + off += scnprintf(buffer + off, buf_len - off, + "ASCQ=0x%x ", ascq); + } + return off; +} + +static size_t +scsi_format_sense_hdr(char *buffer, size_t buf_len, + const struct scsi_sense_hdr *sshdr) +{ + const char *sense_txt; + size_t off; + + off = scnprintf(buffer, buf_len, "Sense Key : "); + sense_txt = scsi_sense_key_string(sshdr->sense_key); + if (sense_txt) + off += scnprintf(buffer + off, buf_len - off, + "%s ", sense_txt); + else + off += scnprintf(buffer + off, buf_len - off, + "0x%x ", sshdr->sense_key); + off += scnprintf(buffer + off, buf_len - off, + scsi_sense_is_deferred(sshdr) ? "[deferred] " : "[current] "); + + if (sshdr->response_code >= 0x72) + off += scnprintf(buffer + off, buf_len - off, "[descriptor] "); + return off; +} + +static void +scsi_log_dump_sense(const struct scsi_device *sdev, const char *name, int tag, + const unsigned char *sense_buffer, int sense_len) +{ + char *logbuf; + size_t logbuf_len; + int i; + + logbuf = scsi_log_reserve_buffer(&logbuf_len); + if (!logbuf) + return; + + for (i = 0; i < sense_len; i += 16) { + int len = min(sense_len - i, 16); + size_t off; + + off = sdev_format_header(logbuf, logbuf_len, + name, tag); + hex_dump_to_buffer(&sense_buffer[i], len, 16, 1, + logbuf + off, logbuf_len - off, + false); + dev_printk(KERN_INFO, &sdev->sdev_gendev, "%s", logbuf); + } + scsi_log_release_buffer(logbuf); +} + +static void +scsi_log_print_sense_hdr(const struct scsi_device *sdev, const char *name, + int tag, const struct scsi_sense_hdr *sshdr) +{ + char *logbuf; + size_t off, logbuf_len; + + logbuf = scsi_log_reserve_buffer(&logbuf_len); + if (!logbuf) + return; + off = sdev_format_header(logbuf, logbuf_len, name, tag); + off += scsi_format_sense_hdr(logbuf + off, logbuf_len - off, sshdr); + dev_printk(KERN_INFO, &sdev->sdev_gendev, "%s", logbuf); + scsi_log_release_buffer(logbuf); + + logbuf = scsi_log_reserve_buffer(&logbuf_len); + if (!logbuf) + return; + off = sdev_format_header(logbuf, logbuf_len, name, tag); + off += scsi_format_extd_sense(logbuf + off, logbuf_len - off, + sshdr->asc, sshdr->ascq); + dev_printk(KERN_INFO, &sdev->sdev_gendev, "%s", logbuf); + scsi_log_release_buffer(logbuf); +} + +static void +scsi_log_print_sense(const struct scsi_device *sdev, const char *name, int tag, + const unsigned char *sense_buffer, int sense_len) +{ + struct scsi_sense_hdr sshdr; + + if (scsi_normalize_sense(sense_buffer, sense_len, &sshdr)) + scsi_log_print_sense_hdr(sdev, name, tag, &sshdr); + else + scsi_log_dump_sense(sdev, name, tag, sense_buffer, sense_len); +} + +/* + * Print normalized SCSI sense header with a prefix. + */ +void +scsi_print_sense_hdr(const struct scsi_device *sdev, const char *name, + const struct scsi_sense_hdr *sshdr) +{ + scsi_log_print_sense_hdr(sdev, name, -1, sshdr); +} +EXPORT_SYMBOL(scsi_print_sense_hdr); + +/* Normalize and print sense buffer with name prefix */ +void __scsi_print_sense(const struct scsi_device *sdev, const char *name, + const unsigned char *sense_buffer, int sense_len) +{ + scsi_log_print_sense(sdev, name, -1, sense_buffer, sense_len); +} +EXPORT_SYMBOL(__scsi_print_sense); + +/* Normalize and print sense buffer in SCSI command */ +void scsi_print_sense(struct scsi_cmnd *cmd) +{ + scsi_log_print_sense(cmd->device, scmd_name(cmd), + scsi_cmd_to_rq(cmd)->tag, cmd->sense_buffer, + SCSI_SENSE_BUFFERSIZE); +} +EXPORT_SYMBOL(scsi_print_sense); + +void scsi_print_result(struct scsi_cmnd *cmd, const char *msg, int disposition) +{ + char *logbuf; + size_t off, logbuf_len; + const char *mlret_string = scsi_mlreturn_string(disposition); + const char *hb_string = scsi_hostbyte_string(cmd->result); + unsigned long cmd_age = (jiffies - cmd->jiffies_at_alloc) / HZ; + + logbuf = scsi_log_reserve_buffer(&logbuf_len); + if (!logbuf) + return; + + off = sdev_format_header(logbuf, logbuf_len, scmd_name(cmd), + scsi_cmd_to_rq(cmd)->tag); + + if (off >= logbuf_len) + goto out_printk; + + if (msg) { + off += scnprintf(logbuf + off, logbuf_len - off, + "%s: ", msg); + if (WARN_ON(off >= logbuf_len)) + goto out_printk; + } + if (mlret_string) + off += scnprintf(logbuf + off, logbuf_len - off, + "%s ", mlret_string); + else + off += scnprintf(logbuf + off, logbuf_len - off, + "UNKNOWN(0x%02x) ", disposition); + if (WARN_ON(off >= logbuf_len)) + goto out_printk; + + off += scnprintf(logbuf + off, logbuf_len - off, "Result: "); + if (WARN_ON(off >= logbuf_len)) + goto out_printk; + + if (hb_string) + off += scnprintf(logbuf + off, logbuf_len - off, + "hostbyte=%s ", hb_string); + else + off += scnprintf(logbuf + off, logbuf_len - off, + "hostbyte=0x%02x ", host_byte(cmd->result)); + if (WARN_ON(off >= logbuf_len)) + goto out_printk; + + off += scnprintf(logbuf + off, logbuf_len - off, + "driverbyte=DRIVER_OK "); + + off += scnprintf(logbuf + off, logbuf_len - off, + "cmd_age=%lus", cmd_age); + +out_printk: + dev_printk(KERN_INFO, &cmd->device->sdev_gendev, "%s", logbuf); + scsi_log_release_buffer(logbuf); +} +EXPORT_SYMBOL(scsi_print_result); |
