forked from Minki/linux
scsi: use per-cpu buffer for formatting sense
Convert sense buffer logging to use the per-cpu buffer to avoid line breakup. Tested-by: Robert Elliott <elliott@hp.com> Reviewed-by: Robert Elliott <elliott@hp.com> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Hannes Reinecke
Christoph Hellwig
parent
cbba5b0ee4
commit
2104551969
@ -1246,113 +1246,6 @@ scsi_extd_sense_format(unsigned char asc, unsigned char ascq, const char **fmt)
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}
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EXPORT_SYMBOL(scsi_extd_sense_format);
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void
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scsi_show_extd_sense(const struct scsi_device *sdev, const char *name,
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unsigned char asc, unsigned char ascq)
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{
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const char *extd_sense_fmt = NULL;
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const char *extd_sense_str = scsi_extd_sense_format(asc, ascq,
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&extd_sense_fmt);
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if (extd_sense_str) {
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if (extd_sense_fmt)
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sdev_prefix_printk(KERN_INFO, sdev, name,
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"Add. Sense: %s (%s%x)",
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extd_sense_str, extd_sense_fmt,
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ascq);
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else
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sdev_prefix_printk(KERN_INFO, sdev, name,
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"Add. Sense: %s", extd_sense_str);
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} else {
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sdev_prefix_printk(KERN_INFO, sdev, name,
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"%sASC=0x%x %sASCQ=0x%x\n",
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asc >= 0x80 ? "<<vendor>> " : "", asc,
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ascq >= 0x80 ? "<<vendor>> " : "", ascq);
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}
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}
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EXPORT_SYMBOL(scsi_show_extd_sense);
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void
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scsi_show_sense_hdr(const struct scsi_device *sdev, const char *name,
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const struct scsi_sense_hdr *sshdr)
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{
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const char *sense_txt;
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sense_txt = scsi_sense_key_string(sshdr->sense_key);
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if (sense_txt)
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sdev_prefix_printk(KERN_INFO, sdev, name,
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"Sense Key : %s [%s]%s\n", sense_txt,
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scsi_sense_is_deferred(sshdr) ?
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"deferred" : "current",
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sshdr->response_code >= 0x72 ?
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" [descriptor]" : "");
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else
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sdev_prefix_printk(KERN_INFO, sdev, name,
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"Sense Key : 0x%x [%s]%s", sshdr->sense_key,
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scsi_sense_is_deferred(sshdr) ?
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"deferred" : "current",
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sshdr->response_code >= 0x72 ?
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" [descriptor]" : "");
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}
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EXPORT_SYMBOL(scsi_show_sense_hdr);
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/*
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* Print normalized SCSI sense header with a prefix.
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*/
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void
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scsi_print_sense_hdr(const struct scsi_device *sdev, const char *name,
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const struct scsi_sense_hdr *sshdr)
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{
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scsi_show_sense_hdr(sdev, name, sshdr);
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scsi_show_extd_sense(sdev, name, sshdr->asc, sshdr->ascq);
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}
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EXPORT_SYMBOL(scsi_print_sense_hdr);
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static void
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scsi_dump_sense_buffer(const unsigned char *sense_buffer, int sense_len)
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{
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int k, num;
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num = (sense_len < 32) ? sense_len : 32;
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printk("Unrecognized sense data (in hex):");
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for (k = 0; k < num; ++k) {
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if (0 == (k % 16)) {
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printk("\n");
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printk(KERN_INFO " ");
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}
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printk("%02x ", sense_buffer[k]);
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}
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printk("\n");
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return;
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}
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/* Normalize and print sense buffer with name prefix */
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void __scsi_print_sense(const struct scsi_device *sdev, const char *name,
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const unsigned char *sense_buffer, int sense_len)
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{
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struct scsi_sense_hdr sshdr;
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if (!scsi_normalize_sense(sense_buffer, sense_len, &sshdr)) {
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scsi_dump_sense_buffer(sense_buffer, sense_len);
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return;
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}
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scsi_show_sense_hdr(sdev, name, &sshdr);
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scsi_show_extd_sense(sdev, name, sshdr.asc, sshdr.ascq);
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}
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EXPORT_SYMBOL(__scsi_print_sense);
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/* Normalize and print sense buffer in SCSI command */
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void scsi_print_sense(const struct scsi_cmnd *cmd)
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{
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struct gendisk *disk = cmd->request->rq_disk;
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const char *disk_name = disk ? disk->disk_name : NULL;
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__scsi_print_sense(cmd->device, disk_name, cmd->sense_buffer,
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SCSI_SENSE_BUFFERSIZE);
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}
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EXPORT_SYMBOL(scsi_print_sense);
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#ifdef CONFIG_SCSI_CONSTANTS
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static const char * const hostbyte_table[]={
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@ -69,14 +69,20 @@ static void scsi_log_release_buffer(char *bufptr)
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preempt_enable();
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}
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static size_t scmd_format_header(char *logbuf, size_t logbuf_len,
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struct gendisk *disk, int tag)
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static inline const char *scmd_name(const struct scsi_cmnd *scmd)
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{
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return scmd->request->rq_disk ?
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scmd->request->rq_disk->disk_name : NULL;
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}
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static size_t sdev_format_header(char *logbuf, size_t logbuf_len,
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const char *name, int tag)
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{
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size_t off = 0;
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if (disk)
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if (name)
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off += scnprintf(logbuf + off, logbuf_len - off,
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"[%s] ", disk->disk_name);
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"[%s] ", name);
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if (WARN_ON(off >= logbuf_len))
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return off;
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@ -119,7 +125,6 @@ EXPORT_SYMBOL(sdev_prefix_printk);
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int scmd_printk(const char *level, const struct scsi_cmnd *scmd,
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const char *fmt, ...)
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{
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struct gendisk *disk = scmd->request->rq_disk;
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va_list args;
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char *logbuf;
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size_t off = 0, logbuf_len;
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@ -131,7 +136,7 @@ int scmd_printk(const char *level, const struct scsi_cmnd *scmd,
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logbuf = scsi_log_reserve_buffer(&logbuf_len);
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if (!logbuf)
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return 0;
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off = scmd_format_header(logbuf, logbuf_len, disk,
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off = sdev_format_header(logbuf, logbuf_len, scmd_name(scmd),
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scmd->request->tag);
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if (off < logbuf_len) {
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va_start(args, fmt);
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@ -218,7 +223,6 @@ EXPORT_SYMBOL(__scsi_format_command);
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void scsi_print_command(struct scsi_cmnd *cmd)
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{
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struct gendisk *disk = cmd->request->rq_disk;
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int k;
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char *logbuf;
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size_t off, logbuf_len;
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@ -230,7 +234,8 @@ void scsi_print_command(struct scsi_cmnd *cmd)
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if (!logbuf)
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return;
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off = scmd_format_header(logbuf, logbuf_len, disk, cmd->request->tag);
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off = sdev_format_header(logbuf, logbuf_len,
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scmd_name(cmd), cmd->request->tag);
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if (off >= logbuf_len)
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goto out_printk;
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off += scnprintf(logbuf + off, logbuf_len - off, "CDB: ");
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@ -254,7 +259,8 @@ void scsi_print_command(struct scsi_cmnd *cmd)
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logbuf = scsi_log_reserve_buffer(&logbuf_len);
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if (!logbuf)
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break;
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off = scmd_format_header(logbuf, logbuf_len, disk,
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off = sdev_format_header(logbuf, logbuf_len,
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scmd_name(cmd),
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cmd->request->tag);
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if (!WARN_ON(off > logbuf_len - 58)) {
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off += scnprintf(logbuf + off, logbuf_len - off,
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@ -280,3 +286,145 @@ out_printk:
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scsi_log_release_buffer(logbuf);
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}
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EXPORT_SYMBOL(scsi_print_command);
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static size_t
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scsi_format_extd_sense(char *buffer, size_t buf_len,
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unsigned char asc, unsigned char ascq)
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{
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size_t off = 0;
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const char *extd_sense_fmt = NULL;
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const char *extd_sense_str = scsi_extd_sense_format(asc, ascq,
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&extd_sense_fmt);
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if (extd_sense_str) {
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off = scnprintf(buffer, buf_len, "Add. Sense: %s",
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extd_sense_str);
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if (extd_sense_fmt)
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off += scnprintf(buffer + off, buf_len - off,
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"(%s%x)", extd_sense_fmt, ascq);
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} else {
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if (asc >= 0x80)
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off = scnprintf(buffer, buf_len, "<<vendor>>");
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off += scnprintf(buffer + off, buf_len - off,
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"ASC=0x%x ", asc);
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if (ascq >= 0x80)
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off += scnprintf(buffer + off, buf_len - off,
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"<<vendor>>");
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off += scnprintf(buffer + off, buf_len - off,
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"ASCQ=0x%x ", ascq);
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}
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return off;
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}
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static size_t
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scsi_format_sense_hdr(char *buffer, size_t buf_len,
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const struct scsi_sense_hdr *sshdr)
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{
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const char *sense_txt;
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size_t off;
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off = scnprintf(buffer, buf_len, "Sense Key : ");
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sense_txt = scsi_sense_key_string(sshdr->sense_key);
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if (sense_txt)
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off += scnprintf(buffer + off, buf_len - off,
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"%s ", sense_txt);
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else
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off += scnprintf(buffer + off, buf_len - off,
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"0x%x ", sshdr->sense_key);
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off += scnprintf(buffer + off, buf_len - off,
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scsi_sense_is_deferred(sshdr) ? "[deferred] " : "[current] ");
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if (sshdr->response_code >= 0x72)
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off += scnprintf(buffer + off, buf_len - off, "[descriptor] ");
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return off;
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}
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static void
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scsi_log_dump_sense(const struct scsi_device *sdev, const char *name, int tag,
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const unsigned char *sense_buffer, int sense_len)
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{
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char *logbuf;
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size_t logbuf_len;
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int i;
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logbuf = scsi_log_reserve_buffer(&logbuf_len);
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if (!logbuf)
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return;
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for (i = 0; i < sense_len; i += 16) {
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int len = min(sense_len - i, 16);
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size_t off;
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off = sdev_format_header(logbuf, logbuf_len,
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name, tag);
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hex_dump_to_buffer(&sense_buffer[i], len, 16, 1,
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logbuf + off, logbuf_len - off,
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false);
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dev_printk(KERN_INFO, &sdev->sdev_gendev, logbuf);
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}
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scsi_log_release_buffer(logbuf);
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}
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static void
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scsi_log_print_sense_hdr(const struct scsi_device *sdev, const char *name,
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int tag, const struct scsi_sense_hdr *sshdr)
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{
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char *logbuf;
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size_t off, logbuf_len;
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logbuf = scsi_log_reserve_buffer(&logbuf_len);
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if (!logbuf)
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return;
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off = sdev_format_header(logbuf, logbuf_len, name, tag);
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off += scsi_format_sense_hdr(logbuf + off, logbuf_len - off, sshdr);
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dev_printk(KERN_INFO, &sdev->sdev_gendev, logbuf);
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scsi_log_release_buffer(logbuf);
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logbuf = scsi_log_reserve_buffer(&logbuf_len);
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if (!logbuf)
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return;
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off = sdev_format_header(logbuf, logbuf_len, name, tag);
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off += scsi_format_extd_sense(logbuf + off, logbuf_len - off,
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sshdr->asc, sshdr->ascq);
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dev_printk(KERN_INFO, &sdev->sdev_gendev, logbuf);
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scsi_log_release_buffer(logbuf);
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}
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static void
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scsi_log_print_sense(const struct scsi_device *sdev, const char *name, int tag,
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const unsigned char *sense_buffer, int sense_len)
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{
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struct scsi_sense_hdr sshdr;
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if (scsi_normalize_sense(sense_buffer, sense_len, &sshdr))
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scsi_log_print_sense_hdr(sdev, name, tag, &sshdr);
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else
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scsi_log_dump_sense(sdev, name, tag, sense_buffer, sense_len);
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}
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/*
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* Print normalized SCSI sense header with a prefix.
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*/
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void
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scsi_print_sense_hdr(const struct scsi_device *sdev, const char *name,
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const struct scsi_sense_hdr *sshdr)
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{
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scsi_log_print_sense_hdr(sdev, name, -1, sshdr);
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}
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EXPORT_SYMBOL(scsi_print_sense_hdr);
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/* Normalize and print sense buffer with name prefix */
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void __scsi_print_sense(const struct scsi_device *sdev, const char *name,
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const unsigned char *sense_buffer, int sense_len)
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{
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scsi_log_print_sense(sdev, name, -1, sense_buffer, sense_len);
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}
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EXPORT_SYMBOL(__scsi_print_sense);
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/* Normalize and print sense buffer in SCSI command */
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void scsi_print_sense(const struct scsi_cmnd *cmd)
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{
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scsi_log_print_sense(cmd->device, scmd_name(cmd), cmd->request->tag,
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cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE);
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}
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EXPORT_SYMBOL(scsi_print_sense);
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@ -3318,11 +3318,8 @@ module_exit(exit_sd);
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static void sd_print_sense_hdr(struct scsi_disk *sdkp,
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struct scsi_sense_hdr *sshdr)
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{
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scsi_show_sense_hdr(sdkp->device,
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sdkp->disk ? sdkp->disk->disk_name : NULL, sshdr);
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scsi_show_extd_sense(sdkp->device,
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sdkp->disk ? sdkp->disk->disk_name : NULL,
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sshdr->asc, sshdr->ascq);
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scsi_print_sense_hdr(sdkp->device,
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sdkp->disk ? sdkp->disk->disk_name : NULL, sshdr);
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}
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static void sd_print_result(const struct scsi_disk *sdkp, const char *msg,
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@ -4714,10 +4714,8 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
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sdev_printk(KERN_WARNING, sdp,
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"START_STOP failed for power mode: %d, result %x\n",
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pwr_mode, ret);
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if (driver_byte(ret) & DRIVER_SENSE) {
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scsi_show_sense_hdr(sdp, NULL, &sshdr);
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scsi_show_extd_sense(sdp, NULL, sshdr.asc, sshdr.ascq);
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}
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if (driver_byte(ret) & DRIVER_SENSE)
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scsi_print_sense_hdr(sdp, NULL, &sshdr);
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}
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if (!ret)
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