MODULE_PARM_DESC(topspin_workarounds,
"Enable workarounds for Topspin/Cisco SRP target bugs if != 0");
-static const u8 topspin_oui[3] = { 0x00, 0x05, 0xad };
-
static int mellanox_workarounds = 1;
module_param(mellanox_workarounds, int, 0444);
MODULE_PARM_DESC(mellanox_workarounds,
"Enable workarounds for Mellanox SRP target bugs if != 0");
-static const u8 mellanox_oui[3] = { 0x00, 0x02, 0xc9 };
-
static void srp_add_one(struct ib_device *device);
static void srp_remove_one(struct ib_device *device);
static void srp_completion(struct ib_cq *cq, void *target_ptr);
return host_to_target(host)->target_name;
}
+static int srp_target_is_topspin(struct srp_target_port *target)
+{
+ static const u8 topspin_oui[3] = { 0x00, 0x05, 0xad };
+ static const u8 cisco_oui[3] = { 0x00, 0x1b, 0x0d };
+
+ return topspin_workarounds &&
+ (!memcmp(&target->ioc_guid, topspin_oui, sizeof topspin_oui) ||
+ !memcmp(&target->ioc_guid, cisco_oui, sizeof cisco_oui));
+}
+
+static int srp_target_is_mellanox(struct srp_target_port *target)
+{
+ static const u8 mellanox_oui[3] = { 0x00, 0x02, 0xc9 };
+
+ return mellanox_workarounds &&
+ !memcmp(&target->ioc_guid, mellanox_oui, sizeof mellanox_oui);
+}
+
static struct srp_iu *srp_alloc_iu(struct srp_host *host, size_t size,
gfp_t gfp_mask,
enum dma_data_direction direction)
return -ENOMEM;
target->cq = ib_create_cq(target->srp_host->dev->dev, srp_completion,
- NULL, target, SRP_CQ_SIZE);
+ NULL, target, SRP_CQ_SIZE, 0);
if (IS_ERR(target->cq)) {
ret = PTR_ERR(target->cq);
goto out;
target->srp_host->dev->dev,
target->srp_host->port,
&target->path,
+ IB_SA_PATH_REC_SERVICE_ID |
IB_SA_PATH_REC_DGID |
IB_SA_PATH_REC_SGID |
IB_SA_PATH_REC_NUMB_PATH |
* zero out the first 8 bytes of our initiator port ID and set
* the second 8 bytes to the local node GUID.
*/
- if (topspin_workarounds && !memcmp(&target->ioc_guid, topspin_oui, 3)) {
+ if (srp_target_is_topspin(target)) {
printk(KERN_DEBUG PFX "Topspin/Cisco initiator port ID workaround "
"activated for target GUID %016llx\n",
(unsigned long long) be64_to_cpu(target->ioc_guid));
struct srp_target_port *target,
struct srp_request *req)
{
- struct scatterlist *scat;
- int nents;
-
- if (!scmnd->request_buffer ||
+ if (!scsi_sglist(scmnd) ||
(scmnd->sc_data_direction != DMA_TO_DEVICE &&
scmnd->sc_data_direction != DMA_FROM_DEVICE))
return;
req->fmr = NULL;
}
- /*
- * This handling of non-SG commands can be killed when the
- * SCSI midlayer no longer generates non-SG commands.
- */
- if (likely(scmnd->use_sg)) {
- nents = scmnd->use_sg;
- scat = scmnd->request_buffer;
- } else {
- nents = 1;
- scat = &req->fake_sg;
- }
-
- ib_dma_unmap_sg(target->srp_host->dev->dev, scat, nents,
- scmnd->sc_data_direction);
+ ib_dma_unmap_sg(target->srp_host->dev->dev, scsi_sglist(scmnd),
+ scsi_sg_count(scmnd), scmnd->sc_data_direction);
}
static void srp_remove_req(struct srp_target_port *target, struct srp_request *req)
int ret;
struct srp_device *dev = target->srp_host->dev;
struct ib_device *ibdev = dev->dev;
+ struct scatterlist *sg;
if (!dev->fmr_pool)
return -ENODEV;
- if ((ib_sg_dma_address(ibdev, &scat[0]) & ~dev->fmr_page_mask) &&
- mellanox_workarounds && !memcmp(&target->ioc_guid, mellanox_oui, 3))
+ if (srp_target_is_mellanox(target) &&
+ (ib_sg_dma_address(ibdev, &scat[0]) & ~dev->fmr_page_mask))
return -EINVAL;
len = page_cnt = 0;
- for (i = 0; i < sg_cnt; ++i) {
- unsigned int dma_len = ib_sg_dma_len(ibdev, &scat[i]);
+ scsi_for_each_sg(req->scmnd, sg, sg_cnt, i) {
+ unsigned int dma_len = ib_sg_dma_len(ibdev, sg);
- if (ib_sg_dma_address(ibdev, &scat[i]) & ~dev->fmr_page_mask) {
+ if (ib_sg_dma_address(ibdev, sg) & ~dev->fmr_page_mask) {
if (i > 0)
return -EINVAL;
else
++page_cnt;
}
- if ((ib_sg_dma_address(ibdev, &scat[i]) + dma_len) &
+ if ((ib_sg_dma_address(ibdev, sg) + dma_len) &
~dev->fmr_page_mask) {
if (i < sg_cnt - 1)
return -EINVAL;
return -ENOMEM;
page_cnt = 0;
- for (i = 0; i < sg_cnt; ++i) {
- unsigned int dma_len = ib_sg_dma_len(ibdev, &scat[i]);
+ scsi_for_each_sg(req->scmnd, sg, sg_cnt, i) {
+ unsigned int dma_len = ib_sg_dma_len(ibdev, sg);
for (j = 0; j < dma_len; j += dev->fmr_page_size)
dma_pages[page_cnt++] =
- (ib_sg_dma_address(ibdev, &scat[i]) &
+ (ib_sg_dma_address(ibdev, sg) &
dev->fmr_page_mask) + j;
}
struct srp_device *dev;
struct ib_device *ibdev;
- if (!scmnd->request_buffer || scmnd->sc_data_direction == DMA_NONE)
+ if (!scsi_sglist(scmnd) || scmnd->sc_data_direction == DMA_NONE)
return sizeof (struct srp_cmd);
if (scmnd->sc_data_direction != DMA_FROM_DEVICE &&
return -EINVAL;
}
- /*
- * This handling of non-SG commands can be killed when the
- * SCSI midlayer no longer generates non-SG commands.
- */
- if (likely(scmnd->use_sg)) {
- nents = scmnd->use_sg;
- scat = scmnd->request_buffer;
- } else {
- nents = 1;
- scat = &req->fake_sg;
- sg_init_one(scat, scmnd->request_buffer, scmnd->request_bufflen);
- }
+ nents = scsi_sg_count(scmnd);
+ scat = scsi_sglist(scmnd);
dev = target->srp_host->dev;
ibdev = dev->dev;
* descriptor.
*/
struct srp_indirect_buf *buf = (void *) cmd->add_data;
+ struct scatterlist *sg;
u32 datalen = 0;
int i;
sizeof (struct srp_indirect_buf) +
count * sizeof (struct srp_direct_buf);
- for (i = 0; i < count; ++i) {
- unsigned int dma_len = ib_sg_dma_len(ibdev, &scat[i]);
+ scsi_for_each_sg(scmnd, sg, count, i) {
+ unsigned int dma_len = ib_sg_dma_len(ibdev, sg);
buf->desc_list[i].va =
- cpu_to_be64(ib_sg_dma_address(ibdev, &scat[i]));
+ cpu_to_be64(ib_sg_dma_address(ibdev, sg));
buf->desc_list[i].key =
cpu_to_be32(dev->mr->rkey);
buf->desc_list[i].len = cpu_to_be32(dma_len);
}
if (rsp->flags & (SRP_RSP_FLAG_DOOVER | SRP_RSP_FLAG_DOUNDER))
- scmnd->resid = be32_to_cpu(rsp->data_out_res_cnt);
+ scsi_set_resid(scmnd, be32_to_cpu(rsp->data_out_res_cnt));
else if (rsp->flags & (SRP_RSP_FLAG_DIOVER | SRP_RSP_FLAG_DIUNDER))
- scmnd->resid = be32_to_cpu(rsp->data_in_res_cnt);
+ scsi_set_resid(scmnd, be32_to_cpu(rsp->data_in_res_cnt));
if (!req->tsk_mgmt) {
scmnd->host_scribble = (void *) -1L;
break;
case IB_CM_REJ_PORT_REDIRECT:
- if (topspin_workarounds &&
- !memcmp(&target->ioc_guid, topspin_oui, 3)) {
+ if (srp_target_is_topspin(target)) {
/*
* Topspin/Cisco SRP gateways incorrectly send
* reject reason code 25 when they mean 24
be16_to_cpu(((__be16 *) target->path.dgid.raw)[7]));
}
+static ssize_t show_orig_dgid(struct class_device *cdev, char *buf)
+{
+ struct srp_target_port *target = host_to_target(class_to_shost(cdev));
+
+ if (target->state == SRP_TARGET_DEAD ||
+ target->state == SRP_TARGET_REMOVED)
+ return -ENODEV;
+
+ return sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n",
+ be16_to_cpu(target->orig_dgid[0]),
+ be16_to_cpu(target->orig_dgid[1]),
+ be16_to_cpu(target->orig_dgid[2]),
+ be16_to_cpu(target->orig_dgid[3]),
+ be16_to_cpu(target->orig_dgid[4]),
+ be16_to_cpu(target->orig_dgid[5]),
+ be16_to_cpu(target->orig_dgid[6]),
+ be16_to_cpu(target->orig_dgid[7]));
+}
+
static ssize_t show_zero_req_lim(struct class_device *cdev, char *buf)
{
struct srp_target_port *target = host_to_target(class_to_shost(cdev));
static CLASS_DEVICE_ATTR(service_id, S_IRUGO, show_service_id, NULL);
static CLASS_DEVICE_ATTR(pkey, S_IRUGO, show_pkey, NULL);
static CLASS_DEVICE_ATTR(dgid, S_IRUGO, show_dgid, NULL);
+static CLASS_DEVICE_ATTR(orig_dgid, S_IRUGO, show_orig_dgid, NULL);
static CLASS_DEVICE_ATTR(zero_req_lim, S_IRUGO, show_zero_req_lim, NULL);
static CLASS_DEVICE_ATTR(local_ib_port, S_IRUGO, show_local_ib_port, NULL);
static CLASS_DEVICE_ATTR(local_ib_device, S_IRUGO, show_local_ib_device, NULL);
&class_device_attr_service_id,
&class_device_attr_pkey,
&class_device_attr_dgid,
+ &class_device_attr_orig_dgid,
&class_device_attr_zero_req_lim,
&class_device_attr_local_ib_port,
&class_device_attr_local_ib_device,
static struct scsi_host_template srp_template = {
.module = THIS_MODULE,
- .name = DRV_NAME,
+ .name = "InfiniBand SRP initiator",
+ .proc_name = DRV_NAME,
.info = srp_target_info,
.queuecommand = srp_queuecommand,
.eh_abort_handler = srp_abort,
target->path.dgid.raw[i] = simple_strtoul(dgid, NULL, 16);
}
kfree(p);
+ memcpy(target->orig_dgid, target->path.dgid.raw, 16);
break;
case SRP_OPT_PKEY:
goto out;
}
target->service_id = cpu_to_be64(simple_strtoull(p, NULL, 16));
+ target->path.service_id = target->service_id;
kfree(p);
break;
projects / linux-2.6-omap-h63xx.git / blobdiff