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First batch of InfiniBand/RDMA changes for the 3.8 merge window:

Browse source 
- A good chunk of Bart Van Assche's SRP fixes
  - UAPI disintegration from David Howells
  - mlx4 support for "64-byte CQE" hardware feature from Or Gerlitz
  - Other miscellaneous fixes
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Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull infiniband upate from Roland Dreier:
 "First batch of InfiniBand/RDMA changes for the 3.8 merge window:
   - A good chunk of Bart Van Assche's SRP fixes
   - UAPI disintegration from David Howells
   - mlx4 support for "64-byte CQE" hardware feature from Or Gerlitz
   - Other miscellaneous fixes"

Fix up trivial conflict in mellanox/mlx4 driver.

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (33 commits)
  RDMA/nes: Fix for crash when registering zero length MR for CQ
  RDMA/nes: Fix for terminate timer crash
  RDMA/nes: Fix for BUG_ON due to adding already-pending timer
  IB/srp: Allow SRP disconnect through sysfs
  srp_transport: Document sysfs attributes
  srp_transport: Simplify attribute initialization code
  srp_transport: Fix attribute registration
  IB/srp: Document sysfs attributes
  IB/srp: send disconnect request without waiting for CM timewait exit
  IB/srp: destroy and recreate QP and CQs when reconnecting
  IB/srp: Eliminate state SRP_TARGET_DEAD
  IB/srp: Introduce the helper function srp_remove_target()
  IB/srp: Suppress superfluous error messages
  IB/srp: Process all error completions
  IB/srp: Introduce srp_handle_qp_err()
  IB/srp: Simplify SCSI error handling
  IB/srp: Keep processing commands during host removal
  IB/srp: Eliminate state SRP_TARGET_CONNECTING
  IB/srp: Increase block layer timeout
  RDMA/cm: Change return value from find_gid_port()
  ...
This commit is contained in:
Linus Torvalds 2012-12-13 19:19:09 -08:00
commit f132c54e3a
42 changed files with 689 additions and 322 deletions
Download patch file Download diff file Expand all files Collapse all files

51
drivers/scsi/scsi_transport_srp.c
View file

@ -38,7 +38,7 @@ struct srp_host_attrs {
#define to_srp_host_attrs(host) ((struct srp_host_attrs *)(host)->shost_data)
#define SRP_HOST_ATTRS 0
#define SRP_RPORT_ATTRS 2
#define SRP_RPORT_ATTRS 3
struct srp_internal {
struct scsi_transport_template t;
@ -47,7 +47,6 @@ struct srp_internal {
struct device_attribute *host_attrs[SRP_HOST_ATTRS + 1];
struct device_attribute *rport_attrs[SRP_RPORT_ATTRS + 1];
struct device_attribute private_rport_attrs[SRP_RPORT_ATTRS];
struct transport_container rport_attr_cont;
};
@ -72,24 +71,6 @@ static DECLARE_TRANSPORT_CLASS(srp_host_class, "srp_host", srp_host_setup,
static DECLARE_TRANSPORT_CLASS(srp_rport_class, "srp_remote_ports",
NULL, NULL, NULL);
#define SETUP_TEMPLATE(attrb, field, perm, test, ro_test, ro_perm) \
i->private_##attrb[count] = dev_attr_##field; \
i->private_##attrb[count].attr.mode = perm; \
if (ro_test) { \
i->private_##attrb[count].attr.mode = ro_perm; \
i->private_##attrb[count].store = NULL; \
} \
i->attrb[count] = &i->private_##attrb[count]; \
if (test) \
count++
#define SETUP_RPORT_ATTRIBUTE_RD(field) \
SETUP_TEMPLATE(rport_attrs, field, S_IRUGO, 1, 0, 0)
#define SETUP_RPORT_ATTRIBUTE_RW(field) \
SETUP_TEMPLATE(rport_attrs, field, S_IRUGO | S_IWUSR, \
1, 1, S_IRUGO)
#define SRP_PID(p) \
(p)->port_id[0], (p)->port_id[1], (p)->port_id[2], (p)->port_id[3], \
(p)->port_id[4], (p)->port_id[5], (p)->port_id[6], (p)->port_id[7], \
@ -135,6 +116,24 @@ show_srp_rport_roles(struct device *dev, struct device_attribute *attr,
static DEVICE_ATTR(roles, S_IRUGO, show_srp_rport_roles, NULL);
static ssize_t store_srp_rport_delete(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct srp_rport *rport = transport_class_to_srp_rport(dev);
struct Scsi_Host *shost = dev_to_shost(dev);
struct srp_internal *i = to_srp_internal(shost->transportt);
if (i->f->rport_delete) {
i->f->rport_delete(rport);
return count;
} else {
return -ENOSYS;
}
}
static DEVICE_ATTR(delete, S_IWUSR, NULL, store_srp_rport_delete);
static void srp_rport_release(struct device *dev)
{
struct srp_rport *rport = dev_to_rport(dev);
@ -324,12 +323,16 @@ srp_attach_transport(struct srp_function_template *ft)
i->rport_attr_cont.ac.attrs = &i->rport_attrs[0];
i->rport_attr_cont.ac.class = &srp_rport_class.class;
i->rport_attr_cont.ac.match = srp_rport_match;
transport_container_register(&i->rport_attr_cont);
count = 0;
SETUP_RPORT_ATTRIBUTE_RD(port_id);
SETUP_RPORT_ATTRIBUTE_RD(roles);
i->rport_attrs[count] = NULL;
i->rport_attrs[count++] = &dev_attr_port_id;
i->rport_attrs[count++] = &dev_attr_roles;
if (ft->rport_delete)
i->rport_attrs[count++] = &dev_attr_delete;
i->rport_attrs[count++] = NULL;
BUG_ON(count > ARRAY_SIZE(i->rport_attrs));
transport_container_register(&i->rport_attr_cont);
i->f = ft;