Date: Tue, 8 Oct 2002 12:20:29 -0400 From: "Moore, Eric Dean" <emoore@lsil.com> To: freebsd-scsi@FreeBSD.ORG Subject: CAM:READ-12 and WRITE-12 support Message-ID: <0E3FA95632D6D047BA649F95DAB60E5701528EF0@EXA-ATLANTA.se.lsil.com>
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I'm concerned about 12 byte cdbs support in scsi_read_write() [source /sys/cam/scsi/scsi_all.c]. For 12 byte cdb's the block_count is being set in scsi_ulto4b(block_count,scsi_cmd->length); I think there might be a problem with the location of the length member in structure scsi_rw_12. from [sys/cam/scsi/scsi-all.h] struct scsi_rw_12 { u_int8_t opcode; u_int8_t byte2; u_int8_t addr[4]; u_int8_t reserved; u_int8_t length[4]; u_int8_t control; }; According to SCSI-2 spec it should be struct scsi_rw_12 { u_int8_t opcode; u_int8_t byte2; u_int8_t addr[4]; u_int8_t length[4]; u_int8_t reserved; u_int8_t control; }; * should the reserved field should be in bytes 7-10, instead of byte 8-11. Eric Moore To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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