#include <scsi/scsi_host.h>
struct ses_device {
- char *page1;
- char *page2;
- char *page10;
+ unsigned char *page1;
+ unsigned char *page2;
+ unsigned char *page10;
short page1_len;
short page2_len;
short page10_len;
return err;
}
-#define SES_TIMEOUT 30
+#define SES_TIMEOUT (30 * HZ)
#define SES_RETRIES 3
static int ses_recv_diag(struct scsi_device *sdev, int page_code,
void *buf, int bufflen)
{
- char cmd[] = {
+ unsigned char cmd[] = {
RECEIVE_DIAGNOSTIC,
1, /* Set PCV bit */
page_code,
};
return scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf, bufflen,
- NULL, SES_TIMEOUT, SES_RETRIES);
+ NULL, SES_TIMEOUT, SES_RETRIES, NULL);
}
static int ses_send_diag(struct scsi_device *sdev, int page_code,
{
u32 result;
- char cmd[] = {
+ unsigned char cmd[] = {
SEND_DIAGNOSTIC,
0x10, /* Set PF bit */
0,
};
result = scsi_execute_req(sdev, cmd, DMA_TO_DEVICE, buf, bufflen,
- NULL, SES_TIMEOUT, SES_RETRIES);
+ NULL, SES_TIMEOUT, SES_RETRIES, NULL);
if (result)
sdev_printk(KERN_ERR, sdev, "SEND DIAGNOSTIC result: %8x\n",
result);
static int ses_set_page2_descriptor(struct enclosure_device *edev,
struct enclosure_component *ecomp,
- char *desc)
+ unsigned char *desc)
{
int i, j, count = 0, descriptor = ecomp->number;
- struct scsi_device *sdev = to_scsi_device(edev->cdev.dev);
+ struct scsi_device *sdev = to_scsi_device(edev->edev.parent);
struct ses_device *ses_dev = edev->scratch;
- char *type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11];
- char *desc_ptr = ses_dev->page2 + 8;
+ unsigned char *type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11];
+ unsigned char *desc_ptr = ses_dev->page2 + 8;
/* Clear everything */
memset(desc_ptr, 0, ses_dev->page2_len - 8);
return ses_send_diag(sdev, 2, ses_dev->page2, ses_dev->page2_len);
}
-static char *ses_get_page2_descriptor(struct enclosure_device *edev,
+static unsigned char *ses_get_page2_descriptor(struct enclosure_device *edev,
struct enclosure_component *ecomp)
{
int i, j, count = 0, descriptor = ecomp->number;
- struct scsi_device *sdev = to_scsi_device(edev->cdev.dev);
+ struct scsi_device *sdev = to_scsi_device(edev->edev.parent);
struct ses_device *ses_dev = edev->scratch;
- char *type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11];
- char *desc_ptr = ses_dev->page2 + 8;
+ unsigned char *type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11];
+ unsigned char *desc_ptr = ses_dev->page2 + 8;
ses_recv_diag(sdev, 2, ses_dev->page2, ses_dev->page2_len);
static void ses_get_fault(struct enclosure_device *edev,
struct enclosure_component *ecomp)
{
- char *desc;
+ unsigned char *desc;
desc = ses_get_page2_descriptor(edev, ecomp);
- ecomp->fault = (desc[3] & 0x60) >> 4;
+ if (desc)
+ ecomp->fault = (desc[3] & 0x60) >> 4;
}
static int ses_set_fault(struct enclosure_device *edev,
struct enclosure_component *ecomp,
enum enclosure_component_setting val)
{
- char desc[4] = {0 };
+ unsigned char desc[4] = {0 };
switch (val) {
case ENCLOSURE_SETTING_DISABLED:
static void ses_get_status(struct enclosure_device *edev,
struct enclosure_component *ecomp)
{
- char *desc;
+ unsigned char *desc;
desc = ses_get_page2_descriptor(edev, ecomp);
- ecomp->status = (desc[0] & 0x0f);
+ if (desc)
+ ecomp->status = (desc[0] & 0x0f);
}
static void ses_get_locate(struct enclosure_device *edev,
struct enclosure_component *ecomp)
{
- char *desc;
+ unsigned char *desc;
desc = ses_get_page2_descriptor(edev, ecomp);
- ecomp->locate = (desc[2] & 0x02) ? 1 : 0;
+ if (desc)
+ ecomp->locate = (desc[2] & 0x02) ? 1 : 0;
}
static int ses_set_locate(struct enclosure_device *edev,
struct enclosure_component *ecomp,
enum enclosure_component_setting val)
{
- char desc[4] = {0 };
+ unsigned char desc[4] = {0 };
switch (val) {
case ENCLOSURE_SETTING_DISABLED:
struct enclosure_component *ecomp,
enum enclosure_component_setting val)
{
- char desc[4] = {0 };
+ unsigned char desc[4] = {0 };
switch (val) {
case ENCLOSURE_SETTING_DISABLED:
struct enclosure_device *edev;
};
+#if 0
int ses_match_host(struct enclosure_device *edev, void *data)
{
struct ses_host_edev *sed = data;
struct scsi_device *sdev;
- if (!scsi_is_sdev_device(edev->cdev.dev))
+ if (!scsi_is_sdev_device(edev->edev.parent))
return 0;
- sdev = to_scsi_device(edev->cdev.dev);
+ sdev = to_scsi_device(edev->edev.parent);
if (sdev->host != sed->shost)
return 0;
sed->edev = edev;
return 1;
}
+#endif /* 0 */
static void ses_process_descriptor(struct enclosure_component *ecomp,
unsigned char *desc)
return 0;
}
-#define VPD_INQUIRY_SIZE 512
+#define INIT_ALLOC_SIZE 32
+
+static void ses_enclosure_data_process(struct enclosure_device *edev,
+ struct scsi_device *sdev,
+ int create)
+{
+ u32 result;
+ unsigned char *buf = NULL, *type_ptr, *desc_ptr, *addl_desc_ptr = NULL;
+ int i, j, page7_len, len, components;
+ struct ses_device *ses_dev = edev->scratch;
+ int types = ses_dev->page1[10];
+ unsigned char *hdr_buf = kzalloc(INIT_ALLOC_SIZE, GFP_KERNEL);
+
+ if (!hdr_buf)
+ goto simple_populate;
+
+ /* re-read page 10 */
+ if (ses_dev->page10)
+ ses_recv_diag(sdev, 10, ses_dev->page10, ses_dev->page10_len);
+ /* Page 7 for the descriptors is optional */
+ result = ses_recv_diag(sdev, 7, hdr_buf, INIT_ALLOC_SIZE);
+ if (result)
+ goto simple_populate;
+
+ page7_len = len = (hdr_buf[2] << 8) + hdr_buf[3] + 4;
+ /* add 1 for trailing '\0' we'll use */
+ buf = kzalloc(len + 1, GFP_KERNEL);
+ if (!buf)
+ goto simple_populate;
+ result = ses_recv_diag(sdev, 7, buf, len);
+ if (result) {
+ simple_populate:
+ kfree(buf);
+ buf = NULL;
+ desc_ptr = NULL;
+ len = 0;
+ page7_len = 0;
+ } else {
+ desc_ptr = buf + 8;
+ len = (desc_ptr[2] << 8) + desc_ptr[3];
+ /* skip past overall descriptor */
+ desc_ptr += len + 4;
+ if (ses_dev->page10)
+ addl_desc_ptr = ses_dev->page10 + 8;
+ }
+ type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11];
+ components = 0;
+ for (i = 0; i < types; i++, type_ptr += 4) {
+ for (j = 0; j < type_ptr[1]; j++) {
+ char *name = NULL;
+ struct enclosure_component *ecomp;
+
+ if (desc_ptr) {
+ if (desc_ptr >= buf + page7_len) {
+ desc_ptr = NULL;
+ } else {
+ len = (desc_ptr[2] << 8) + desc_ptr[3];
+ desc_ptr += 4;
+ /* Add trailing zero - pushes into
+ * reserved space */
+ desc_ptr[len] = '\0';
+ name = desc_ptr;
+ }
+ }
+ if (type_ptr[0] == ENCLOSURE_COMPONENT_DEVICE ||
+ type_ptr[0] == ENCLOSURE_COMPONENT_ARRAY_DEVICE) {
+
+ if (create)
+ ecomp = enclosure_component_register(edev,
+ components++,
+ type_ptr[0],
+ name);
+ else
+ ecomp = &edev->component[components++];
+
+ if (!IS_ERR(ecomp) && addl_desc_ptr)
+ ses_process_descriptor(ecomp,
+ addl_desc_ptr);
+ }
+ if (desc_ptr)
+ desc_ptr += len;
+
+ if (addl_desc_ptr)
+ addl_desc_ptr += addl_desc_ptr[1] + 2;
+
+ }
+ }
+ kfree(buf);
+ kfree(hdr_buf);
+}
static void ses_match_to_enclosure(struct enclosure_device *edev,
struct scsi_device *sdev)
{
- unsigned char *buf = kmalloc(VPD_INQUIRY_SIZE, GFP_KERNEL);
+ unsigned char *buf;
unsigned char *desc;
- int len;
+ unsigned int vpd_len;
struct efd efd = {
.addr = 0,
};
- unsigned char cmd[] = {
- INQUIRY,
- 1,
- 0x83,
- VPD_INQUIRY_SIZE >> 8,
- VPD_INQUIRY_SIZE & 0xff,
- 0
- };
+ buf = scsi_get_vpd_page(sdev, 0x83);
if (!buf)
return;
- if (scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf,
- VPD_INQUIRY_SIZE, NULL, SES_TIMEOUT, SES_RETRIES))
- goto free;
+ ses_enclosure_data_process(edev, to_scsi_device(edev->edev.parent), 0);
+
+ vpd_len = ((buf[2] << 8) | buf[3]) + 4;
- len = (buf[2] << 8) + buf[3];
desc = buf + 4;
- while (desc < buf + len) {
+ while (desc < buf + vpd_len) {
enum scsi_protocol proto = desc[0] >> 4;
u8 code_set = desc[0] & 0x0f;
u8 piv = desc[1] & 0x80;
u8 type = desc[1] & 0x0f;
u8 len = desc[3];
- if (piv && code_set == 1 && assoc == 1 && code_set == 1
+ if (piv && code_set == 1 && assoc == 1
&& proto == SCSI_PROTOCOL_SAS && type == 3 && len == 8)
efd.addr = (u64)desc[4] << 56 |
(u64)desc[5] << 48 |
kfree(buf);
}
-#define INIT_ALLOC_SIZE 32
-
-static int ses_intf_add(struct class_device *cdev,
+static int ses_intf_add(struct device *cdev,
struct class_interface *intf)
{
- struct scsi_device *sdev = to_scsi_device(cdev->dev);
+ struct scsi_device *sdev = to_scsi_device(cdev->parent);
struct scsi_device *tmp_sdev;
- unsigned char *buf = NULL, *hdr_buf, *type_ptr, *desc_ptr,
- *addl_desc_ptr;
+ unsigned char *buf = NULL, *hdr_buf, *type_ptr;
struct ses_device *ses_dev;
u32 result;
- int i, j, types, len, components = 0;
+ int i, types, len, components = 0;
int err = -ENOMEM;
struct enclosure_device *edev;
struct ses_component *scomp = NULL;
if (!scsi_device_enclosure(sdev)) {
/* not an enclosure, but might be in one */
- edev = enclosure_find(&sdev->host->shost_gendev);
- if (edev) {
+ struct enclosure_device *prev = NULL;
+
+ while ((edev = enclosure_find(&sdev->host->shost_gendev, prev)) != NULL) {
ses_match_to_enclosure(edev, sdev);
- class_device_put(&edev->cdev);
+ prev = edev;
}
return -ENODEV;
}
* traversal routines more complex */
sdev_printk(KERN_ERR, sdev,
"FIXME driver has no support for subenclosures (%d)\n",
- buf[1]);
+ hdr_buf[1]);
goto err_free;
}
goto recv_failed;
types = buf[10];
- len = buf[11];
- type_ptr = buf + 12 + len;
+ type_ptr = buf + 12 + buf[11];
for (i = 0; i < types; i++, type_ptr += 4) {
if (type_ptr[0] == ENCLOSURE_COMPONENT_DEVICE ||
/* The additional information page --- allows us
* to match up the devices */
result = ses_recv_diag(sdev, 10, hdr_buf, INIT_ALLOC_SIZE);
- if (result)
- goto no_page10;
-
- len = (hdr_buf[2] << 8) + hdr_buf[3] + 4;
- buf = kzalloc(len, GFP_KERNEL);
- if (!buf)
- goto err_free;
-
- result = ses_recv_diag(sdev, 10, buf, len);
- if (result)
- goto recv_failed;
- ses_dev->page10 = buf;
- ses_dev->page10_len = len;
- buf = NULL;
+ if (!result) {
+
+ len = (hdr_buf[2] << 8) + hdr_buf[3] + 4;
+ buf = kzalloc(len, GFP_KERNEL);
+ if (!buf)
+ goto err_free;
+
+ result = ses_recv_diag(sdev, 10, buf, len);
+ if (result)
+ goto recv_failed;
+ ses_dev->page10 = buf;
+ ses_dev->page10_len = len;
+ buf = NULL;
+ }
+ kfree(hdr_buf);
- no_page10:
scomp = kzalloc(sizeof(struct ses_component) * components, GFP_KERNEL);
if (!scomp)
goto err_free;
- edev = enclosure_register(cdev->dev, sdev->sdev_gendev.bus_id,
+ edev = enclosure_register(cdev->parent, dev_name(&sdev->sdev_gendev),
components, &ses_enclosure_callbacks);
if (IS_ERR(edev)) {
err = PTR_ERR(edev);
for (i = 0; i < components; i++)
edev->component[i].scratch = scomp + i;
- /* Page 7 for the descriptors is optional */
- result = ses_recv_diag(sdev, 7, hdr_buf, INIT_ALLOC_SIZE);
- if (result)
- goto simple_populate;
-
- len = (hdr_buf[2] << 8) + hdr_buf[3] + 4;
- /* add 1 for trailing '\0' we'll use */
- buf = kzalloc(len + 1, GFP_KERNEL);
- if (!buf)
- goto simple_populate;
- result = ses_recv_diag(sdev, 7, buf, len);
- if (result) {
- simple_populate:
- kfree(buf);
- buf = NULL;
- desc_ptr = NULL;
- addl_desc_ptr = NULL;
- } else {
- desc_ptr = buf + 8;
- len = (desc_ptr[2] << 8) + desc_ptr[3];
- /* skip past overall descriptor */
- desc_ptr += len + 4;
- addl_desc_ptr = ses_dev->page10 + 8;
- }
- type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11];
- components = 0;
- for (i = 0; i < types; i++, type_ptr += 4) {
- for (j = 0; j < type_ptr[1]; j++) {
- char *name = NULL;
- struct enclosure_component *ecomp;
-
- if (desc_ptr) {
- len = (desc_ptr[2] << 8) + desc_ptr[3];
- desc_ptr += 4;
- /* Add trailing zero - pushes into
- * reserved space */
- desc_ptr[len] = '\0';
- name = desc_ptr;
- }
- if (type_ptr[0] != ENCLOSURE_COMPONENT_DEVICE &&
- type_ptr[0] != ENCLOSURE_COMPONENT_ARRAY_DEVICE)
- continue;
- ecomp = enclosure_component_register(edev,
- components++,
- type_ptr[0],
- name);
- if (desc_ptr) {
- desc_ptr += len;
- if (!IS_ERR(ecomp))
- ses_process_descriptor(ecomp,
- addl_desc_ptr);
-
- if (addl_desc_ptr)
- addl_desc_ptr += addl_desc_ptr[1] + 2;
- }
- }
- }
- kfree(buf);
- kfree(hdr_buf);
+ ses_enclosure_data_process(edev, sdev, 1);
/* see if there are any devices matching before
* we found the enclosure */
return 0;
}
-static void ses_intf_remove(struct class_device *cdev,
- struct class_interface *intf)
+static void ses_intf_remove_component(struct scsi_device *sdev)
+{
+ struct enclosure_device *edev, *prev = NULL;
+
+ while ((edev = enclosure_find(&sdev->host->shost_gendev, prev)) != NULL) {
+ prev = edev;
+ if (!enclosure_remove_device(edev, &sdev->sdev_gendev))
+ break;
+ }
+ if (edev)
+ put_device(&edev->edev);
+}
+
+static void ses_intf_remove_enclosure(struct scsi_device *sdev)
{
- struct scsi_device *sdev = to_scsi_device(cdev->dev);
struct enclosure_device *edev;
struct ses_device *ses_dev;
- if (!scsi_device_enclosure(sdev))
- return;
-
- edev = enclosure_find(cdev->dev);
+ /* exact match to this enclosure */
+ edev = enclosure_find(&sdev->sdev_gendev, NULL);
if (!edev)
return;
kfree(edev->component[0].scratch);
- class_device_put(&edev->cdev);
+ put_device(&edev->edev);
enclosure_unregister(edev);
}
+static void ses_intf_remove(struct device *cdev,
+ struct class_interface *intf)
+{
+ struct scsi_device *sdev = to_scsi_device(cdev->parent);
+
+ if (!scsi_device_enclosure(sdev))
+ ses_intf_remove_component(sdev);
+ else
+ ses_intf_remove_enclosure(sdev);
+}
+
static struct class_interface ses_interface = {
- .add = ses_intf_add,
- .remove = ses_intf_remove,
+ .add_dev = ses_intf_add,
+ .remove_dev = ses_intf_remove,
};
static struct scsi_driver ses_template = {
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff