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[SCSI] lpfc 8.3.0 : Add BlockGuard support (T10-DIF) structs and defs

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Update struct definitions, #defines, sysfs entries, and initialization
to support BlockGuard.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
James Smart
2008-12-04 22:39:46 -05:00
committed by James Bottomley
parent 9f1e1b50ab
commit 81301a9b05
6 changed files with 432 additions and 10 deletions
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89
drivers/scsi/lpfc/lpfc_init.c
View File

@@ -45,6 +45,12 @@
#include "lpfc_vport.h"
#include "lpfc_version.h"
char *_dump_buf_data;
unsigned long _dump_buf_data_order;
char *_dump_buf_dif;
unsigned long _dump_buf_dif_order;
spinlock_t _dump_buf_lock;
static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int);
static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
static int lpfc_post_rcv_buf(struct lpfc_hba *);
@@ -2037,6 +2043,7 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
shost->max_lun = vport->cfg_max_luns;
shost->this_id = -1;
shost->max_cmd_len = 16;
/*
* Set initial can_queue value since 0 is no longer supported and
* scsi_add_host will fail. This will be adjusted later based on the
@@ -2864,6 +2871,75 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
* the value of can_queue.
*/
shost->can_queue = phba->cfg_hba_queue_depth - 10;
if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
if (lpfc_prot_mask && lpfc_prot_guard) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"1478 Registering BlockGuard with the "
"SCSI layer\n");
scsi_host_set_prot(shost, lpfc_prot_mask);
scsi_host_set_guard(shost, lpfc_prot_guard);
}
}
if (!_dump_buf_data) {
int pagecnt = 10;
while (pagecnt) {
spin_lock_init(&_dump_buf_lock);
_dump_buf_data =
(char *) __get_free_pages(GFP_KERNEL, pagecnt);
if (_dump_buf_data) {
printk(KERN_ERR "BLKGRD allocated %d pages for "
"_dump_buf_data at 0x%p\n",
(1 << pagecnt), _dump_buf_data);
_dump_buf_data_order = pagecnt;
memset(_dump_buf_data, 0, ((1 << PAGE_SHIFT)
<< pagecnt));
break;
} else {
--pagecnt;
}
}
if (!_dump_buf_data_order)
printk(KERN_ERR "BLKGRD ERROR unable to allocate "
"memory for hexdump\n");
} else {
printk(KERN_ERR "BLKGRD already allocated _dump_buf_data=0x%p"
"\n", _dump_buf_data);
}
if (!_dump_buf_dif) {
int pagecnt = 10;
while (pagecnt) {
_dump_buf_dif =
(char *) __get_free_pages(GFP_KERNEL, pagecnt);
if (_dump_buf_dif) {
printk(KERN_ERR "BLKGRD allocated %d pages for "
"_dump_buf_dif at 0x%p\n",
(1 << pagecnt), _dump_buf_dif);
_dump_buf_dif_order = pagecnt;
memset(_dump_buf_dif, 0, ((1 << PAGE_SHIFT)
<< pagecnt));
break;
} else {
--pagecnt;
}
}
if (!_dump_buf_dif_order)
printk(KERN_ERR "BLKGRD ERROR unable to allocate "
"memory for hexdump\n");
} else {
printk(KERN_ERR "BLKGRD already allocated _dump_buf_dif=0x%p\n",
_dump_buf_dif);
}
lpfc_host_attrib_init(shost);
@@ -3408,6 +3484,19 @@ lpfc_exit(void)
fc_release_transport(lpfc_transport_template);
if (lpfc_enable_npiv)
fc_release_transport(lpfc_vport_transport_template);
if (_dump_buf_data) {
printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_data "
"at 0x%p\n",
(1L << _dump_buf_data_order), _dump_buf_data);
free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
}
if (_dump_buf_dif) {
printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_dif "
"at 0x%p\n",
(1L << _dump_buf_dif_order), _dump_buf_dif);
free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
}
}
module_init(lpfc_init);