#include <scsi/scsi.h>
#include <scsi/scsi_ioctl.h>
#include <scsi/sg.h>
+#include <linux/bsg.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#define ARGUSED(x) ((void)(x))
-const char * os_linux_cpp_cvsid = "$Id: os_linux.cpp 4295 2016-04-15 20:01:32Z chrfranke $"
+const char * os_linux_cpp_cvsid = "$Id: os_linux.cpp 4582 2017-11-03 20:54:56Z chrfranke $"
OS_LINUX_H_CVSID;
extern unsigned char failuretest_permissive;
#define SCSI_IOCTL_SEND_COMMAND 1
#endif
-#define SG_IO_PRESENT_UNKNOWN 0
-#define SG_IO_PRESENT_YES 1
-#define SG_IO_PRESENT_NO 2
+#define SG_IO_USE_DETECT 0
+#define SG_IO_UNSUPP 1
+#define SG_IO_USE_V3 3
+#define SG_IO_USE_V4 4
static int sg_io_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report,
- int unknown);
+ int sgio_ver);
static int sisc_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report);
-static int sg_io_state = SG_IO_PRESENT_UNKNOWN;
+static int sg_io_state = SG_IO_USE_DETECT;
/* Preferred implementation for issuing SCSI commands in linux. This
* function uses the SG_IO ioctl. Return 0 if command issued successfully
* (various status values should still be checked). If the SCSI command
* cannot be issued then a negative errno value is returned. */
static int sg_io_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report,
- int unknown)
+ int sg_io_ver)
{
#ifndef SG_IO
ARGUSED(dev_fd); ARGUSED(iop); ARGUSED(report);
return -ENOTTY;
#else
- struct sg_io_hdr io_hdr;
+
+ /* we are filling structures for both versions, but using only one requested */
+ struct sg_io_hdr io_hdr_v3;
+ struct sg_io_v4 io_hdr_v4;
if (report > 0) {
int k, j;
char buff[256];
const int sz = (int)sizeof(buff);
+ pout(">>>> do_scsi_cmnd_io: sg_io_ver=%d\n", sg_io_ver);
np = scsi_get_opcode_name(ucp[0]);
j = snprintf(buff, sz, " [%s: ", np ? np : "<unknown opcode>");
for (k = 0; k < (int)iop->cmnd_len; ++k)
snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n");
pout("%s", buff);
}
- memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
- io_hdr.interface_id = 'S';
- io_hdr.cmd_len = iop->cmnd_len;
- io_hdr.mx_sb_len = iop->max_sense_len;
- io_hdr.dxfer_len = iop->dxfer_len;
- io_hdr.dxferp = iop->dxferp;
- io_hdr.cmdp = iop->cmnd;
- io_hdr.sbp = iop->sensep;
+ memset(&io_hdr_v3, 0, sizeof(struct sg_io_hdr));
+ memset(&io_hdr_v4, 0, sizeof(struct sg_io_v4));
+
+ io_hdr_v3.interface_id = 'S';
+ io_hdr_v3.cmd_len = iop->cmnd_len;
+ io_hdr_v3.mx_sb_len = iop->max_sense_len;
+ io_hdr_v3.dxfer_len = iop->dxfer_len;
+ io_hdr_v3.dxferp = iop->dxferp;
+ io_hdr_v3.cmdp = iop->cmnd;
+ io_hdr_v3.sbp = iop->sensep;
/* sg_io_hdr interface timeout has millisecond units. Timeout of 0
defaults to 60 seconds. */
- io_hdr.timeout = ((0 == iop->timeout) ? 60 : iop->timeout) * 1000;
+ io_hdr_v3.timeout = ((0 == iop->timeout) ? 60 : iop->timeout) * 1000;
+
+ io_hdr_v4.guard = 'Q';
+ io_hdr_v4.request_len = iop->cmnd_len;
+ io_hdr_v4.request = __u64(iop->cmnd);
+ io_hdr_v4.max_response_len = iop->max_sense_len;
+ io_hdr_v4.response = __u64(iop->sensep);
+ io_hdr_v4.timeout = ((0 == iop->timeout) ? 60 : iop->timeout) * 1000; // msec
+
switch (iop->dxfer_dir) {
case DXFER_NONE:
- io_hdr.dxfer_direction = SG_DXFER_NONE;
+ io_hdr_v3.dxfer_direction = SG_DXFER_NONE;
break;
case DXFER_FROM_DEVICE:
- io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
+ io_hdr_v3.dxfer_direction = SG_DXFER_FROM_DEV;
+ io_hdr_v4.din_xfer_len = iop->dxfer_len;
+ io_hdr_v4.din_xferp = __u64(iop->dxferp);
break;
case DXFER_TO_DEVICE:
- io_hdr.dxfer_direction = SG_DXFER_TO_DEV;
+ io_hdr_v3.dxfer_direction = SG_DXFER_TO_DEV;
+ io_hdr_v4.dout_xfer_len = iop->dxfer_len;
+ io_hdr_v4.dout_xferp = __u64(iop->dxferp);
break;
default:
pout("do_scsi_cmnd_io: bad dxfer_dir\n");
return -EINVAL;
}
+
iop->resp_sense_len = 0;
iop->scsi_status = 0;
iop->resid = 0;
- if (ioctl(dev_fd, SG_IO, &io_hdr) < 0) {
- if (report && (! unknown))
- pout(" SG_IO ioctl failed, errno=%d [%s]\n", errno,
- strerror(errno));
+
+ void * io_hdr = NULL;
+
+ switch (sg_io_ver) {
+ case SG_IO_USE_V3:
+ io_hdr = &io_hdr_v3;
+ break;
+ case SG_IO_USE_V4:
+ io_hdr = &io_hdr_v4;
+ break;
+ default:
+ // should never be reached
+ errno = EOPNOTSUPP;
+ return -errno;
+ }
+
+ if (ioctl(dev_fd, SG_IO, io_hdr) < 0) {
+ if (report)
+ pout(" SG_IO ioctl failed, errno=%d [%s], SG_IO_V%d\n", errno,
+ strerror(errno), sg_io_ver);
return -errno;
}
- iop->resid = io_hdr.resid;
- iop->scsi_status = io_hdr.status;
+
+ unsigned int sg_driver_status = 0, sg_transport_status = 0, sg_info = 0,
+ sg_duration = 0;
+
+ if (sg_io_ver == SG_IO_USE_V3) {
+ iop->resid = io_hdr_v3.resid;
+ iop->scsi_status = io_hdr_v3.status;
+ sg_driver_status = io_hdr_v3.driver_status;
+ sg_transport_status = io_hdr_v3.host_status;
+ sg_info = io_hdr_v3.info;
+ iop->resp_sense_len = io_hdr_v3.sb_len_wr;
+ sg_duration = io_hdr_v3.duration;
+ }
+
+ if (sg_io_ver == SG_IO_USE_V4) {
+ switch (iop->dxfer_dir) {
+ case DXFER_NONE:
+ iop->resid = 0;
+ break;
+ case DXFER_FROM_DEVICE:
+ iop->resid = io_hdr_v4.din_resid;
+ break;
+ case DXFER_TO_DEVICE:
+ iop->resid = io_hdr_v4.dout_resid;
+ break;
+ }
+ iop->scsi_status = io_hdr_v4.device_status;
+ sg_driver_status = io_hdr_v4.driver_status;
+ sg_transport_status = io_hdr_v4.transport_status;
+ sg_info = io_hdr_v4.info;
+ iop->resp_sense_len = io_hdr_v4.response_len;
+ sg_duration = io_hdr_v4.duration;
+ }
+
if (report > 0) {
- pout(" scsi_status=0x%x, host_status=0x%x, driver_status=0x%x\n"
- " info=0x%x duration=%d milliseconds resid=%d\n", io_hdr.status,
- io_hdr.host_status, io_hdr.driver_status, io_hdr.info,
- io_hdr.duration, io_hdr.resid);
+ pout(" scsi_status=0x%x, sg_transport_status=0x%x, sg_driver_status=0x%x\n"
+ " sg_info=0x%x sg_duration=%d milliseconds resid=%d\n", iop->scsi_status,
+ sg_transport_status, sg_driver_status, sg_info,
+ sg_duration, iop->resid);
+
if (report > 1) {
if (DXFER_FROM_DEVICE == iop->dxfer_dir) {
int trunc, len;
}
}
- if (io_hdr.info & SG_INFO_CHECK) { /* error or warning */
- int masked_driver_status = (LSCSI_DRIVER_MASK & io_hdr.driver_status);
+ if (sg_info & SG_INFO_CHECK) { /* error or warning */
+ int masked_driver_status = (LSCSI_DRIVER_MASK & sg_driver_status);
- if (0 != io_hdr.host_status) {
- if ((LSCSI_DID_NO_CONNECT == io_hdr.host_status) ||
- (LSCSI_DID_BUS_BUSY == io_hdr.host_status) ||
- (LSCSI_DID_TIME_OUT == io_hdr.host_status))
+ if (0 != sg_transport_status) {
+ if ((LSCSI_DID_NO_CONNECT == sg_transport_status) ||
+ (LSCSI_DID_BUS_BUSY == sg_transport_status) ||
+ (LSCSI_DID_TIME_OUT == sg_transport_status))
return -ETIMEDOUT;
else
/* Check for DID_ERROR - workaround for aacraid driver quirk */
- if (LSCSI_DID_ERROR != io_hdr.host_status) {
+ if (LSCSI_DID_ERROR != sg_transport_status) {
return -EIO; /* catch all if not DID_ERR */
}
}
}
if (LSCSI_DRIVER_SENSE == masked_driver_status)
iop->scsi_status = SCSI_STATUS_CHECK_CONDITION;
- iop->resp_sense_len = io_hdr.sb_len_wr;
if ((SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) &&
iop->sensep && (iop->resp_sense_len > 0)) {
if (report > 1) {
* other than ENODEV (no device) or permission then assume
* SCSI_IOCTL_SEND_COMMAND is the only option. */
switch (sg_io_state) {
- case SG_IO_PRESENT_UNKNOWN:
+ case SG_IO_USE_DETECT:
/* ignore report argument */
- if (0 == (res = sg_io_cmnd_io(dev_fd, iop, report, 1))) {
- sg_io_state = SG_IO_PRESENT_YES;
+ /* Try SG_IO V3 first */
+ if (0 == (res = sg_io_cmnd_io(dev_fd, iop, report, SG_IO_USE_V3))) {
+ sg_io_state = SG_IO_USE_V3;
return 0;
} else if ((-ENODEV == res) || (-EACCES == res) || (-EPERM == res))
return res; /* wait until we see a device */
- sg_io_state = SG_IO_PRESENT_NO;
- /* drop through by design */
- case SG_IO_PRESENT_NO:
+ /* See if we can use SG_IO V4 * */
+ if (0 == (res = sg_io_cmnd_io(dev_fd, iop, report, SG_IO_USE_V4))) {
+ sg_io_state = SG_IO_USE_V4;
+ return 0;
+ } else if ((-ENODEV == res) || (-EACCES == res) || (-EPERM == res))
+ return res; /* wait until we see a device */
+ /* fallback to the SCSI_IOCTL_SEND_COMMAND */
+ sg_io_state = SG_IO_UNSUPP;
+ /* FALLTHRU */
+ case SG_IO_UNSUPP:
+ /* depricated SCSI_IOCTL_SEND_COMMAND ioctl */
return sisc_cmnd_io(dev_fd, iop, report);
- case SG_IO_PRESENT_YES:
- return sg_io_cmnd_io(dev_fd, iop, report, 0);
+ case SG_IO_USE_V3:
+ case SG_IO_USE_V4:
+ /* use SG_IO V3 or V4 ioctl, depending on availabiliy */
+ return sg_io_cmnd_io(dev_fd, iop, report, sg_io_state);
default:
pout(">>>> do_scsi_cmnd_io: bad sg_io_state=%d\n", sg_io_state);
- sg_io_state = SG_IO_PRESENT_UNKNOWN;
+ sg_io_state = SG_IO_USE_DETECT;
return -EIO; /* report error and reset state */
}
}
j = snprintf(buff, sz, " [%s: ", np ? np : "<unknown opcode>");
for (k = 0; k < (int)iop->cmnd_len; ++k)
j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "%02x ", ucp[k]);
- if ((report > 1) &&
+ if ((report > 1) &&
(DXFER_TO_DEVICE == iop->dxfer_dir) && (iop->dxferp)) {
int trunc = (iop->dxfer_len > 256) ? 1 : 0;
return x * 100000 + y * 1000 + z;
}
+// Check for SCSI host proc_name "hpsa"
+static bool is_hpsa(const char * name)
+{
+ char path[128];
+ snprintf(path, sizeof(path), "/sys/block/%s/device", name);
+ char * syshostpath = canonicalize_file_name(path);
+ if (!syshostpath)
+ return false;
+
+ char * syshost = strrchr(syshostpath, '/');
+ if (!syshost) {
+ free(syshostpath);
+ return false;
+ }
+
+ char * hostsep = strchr(++syshost, ':');
+ if (hostsep)
+ *hostsep = 0;
+
+ snprintf(path, sizeof(path), "/sys/class/scsi_host/host%s/proc_name", syshost);
+ free(syshostpath);
+ int fd = open(path, O_RDONLY);
+ if (fd < 0)
+ return false;
+
+ char proc_name[32];
+ ssize_t n = read(fd, proc_name, sizeof(proc_name) - 1);
+ close(fd);
+ if (n < 4)
+ return false;
+
+ proc_name[n] = 0;
+ if (proc_name[n - 1] == '\n')
+ proc_name[n - 1] = 0;
+
+ if (scsi_debugmode > 1)
+ pout("%s -> %s: \"%s\"\n", name, path, proc_name);
+
+ if (strcmp(proc_name, "hpsa"))
+ return false;
+
+ return true;
+}
+
// Guess device type (ata or scsi) based on device name (Linux
// specific) SCSI device name in linux can be sd, sr, scd, st, nst,
// osst, nosst and sg.
return get_sat_device(usbtype, new linux_scsi_device(this, name, ""));
}
- // No USB bridge found, assume regular SCSI device
+ // Fail if hpsa driver
+ if (is_hpsa(test_name))
+ return missing_option("-d cciss,N");
+
+ // No USB bridge or hpsa driver found, assume regular SCSI device
return new linux_scsi_device(this, name, "");
}
if (str_starts_with(test_name, "scsi/"))
return new linux_scsi_device(this, name, "");
+ // form /dev/bsg/* or bsg/*
+ if (str_starts_with(test_name, "bsg/"))
+ return new linux_scsi_device(this, name, "");
+
// form /dev/ns* or ns*
if (str_starts_with(test_name, "ns"))
return new linux_scsi_device(this, name, "");
projects / mirror_smartmontools-debian.git / blobdiff