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| author |   Ingo Molnar <mingo@elte.hu> | 2011-10-04 11:08:16 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-10-04 11:09:08 +0200 |
| commit | 22f92bacbeea24b20e447444c28e7cad9f1ac3f8 (patch) | |
| tree | 5c3f2346804a186aa2d954f078fd2f4d44bcc26e /drivers/target/target_core_cdb.c | |
| parent | sched, tracing: Show PREEMPT_ACTIVE state in trace_sched_switch (diff) | |
| parent | Merge branch 'hwmon-for-linus' of git://github.com/groeck/linux (diff) | |
| download | linux-dev-22f92bacbeea24b20e447444c28e7cad9f1ac3f8.tar.xz linux-dev-22f92bacbeea24b20e447444c28e7cad9f1ac3f8.zip | |
Merge branch 'linus' into sched/core
Merge reason: pick up the latest fixes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/target/target_core_cdb.c')
| -rw-r--r-- | drivers/target/target_core_cdb.c | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/drivers/target/target_core_cdb.c b/drivers/target/target_core_cdb.c index 89ae923c5da6..f04d4ef99dca 100644 --- a/drivers/target/target_core_cdb.c +++ b/drivers/target/target_core_cdb.c @@ -24,6 +24,7 @@ */ #include <linux/kernel.h> +#include <linux/ctype.h> #include <asm/unaligned.h> #include <scsi/scsi.h> @@ -154,6 +155,37 @@ target_emulate_evpd_80(struct se_cmd *cmd, unsigned char *buf) return 0; } +static void +target_parse_naa_6h_vendor_specific(struct se_device *dev, unsigned char *buf_off) +{ + unsigned char *p = &dev->se_sub_dev->t10_wwn.unit_serial[0]; + unsigned char *buf = buf_off; + int cnt = 0, next = 1; + /* + * Generate up to 36 bits of VENDOR SPECIFIC IDENTIFIER starting on + * byte 3 bit 3-0 for NAA IEEE Registered Extended DESIGNATOR field + * format, followed by 64 bits of VENDOR SPECIFIC IDENTIFIER EXTENSION + * to complete the payload. These are based from VPD=0x80 PRODUCT SERIAL + * NUMBER set via vpd_unit_serial in target_core_configfs.c to ensure + * per device uniqeness. + */ + while (*p != '\0') { + if (cnt >= 13) + break; + if (!isxdigit(*p)) { + p++; + continue; + } + if (next != 0) { + buf[cnt++] |= hex_to_bin(*p++); + next = 0; + } else { + buf[cnt] = hex_to_bin(*p++) << 4; + next = 1; + } + } +} + /* * Device identification VPD, for a complete list of * DESIGNATOR TYPEs see spc4r17 Table 459. @@ -219,8 +251,7 @@ target_emulate_evpd_83(struct se_cmd *cmd, unsigned char *buf) * VENDOR_SPECIFIC_IDENTIFIER and * VENDOR_SPECIFIC_IDENTIFIER_EXTENTION */ - buf[off++] |= hex_to_bin(dev->se_sub_dev->t10_wwn.unit_serial[0]); - hex2bin(&buf[off], &dev->se_sub_dev->t10_wwn.unit_serial[1], 12); + target_parse_naa_6h_vendor_specific(dev, &buf[off]); len = 20; off = (len + 4); |