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IB/srpt: Add P_Key support

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Process connection requests that use another P_Key than the default
correctly.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Bart Van Assche 2018-01-16 16:14:07 -08:00 committed by Doug Ledford
parent 4413834452
commit c5efb62148
2 changed files with 13 additions and 3 deletions
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14
drivers/infiniband/ulp/srpt/ib_srpt.c
View File

@ -41,6 +41,7 @@
#include <linux/string.h>
#include <linux/delay.h>
#include <linux/atomic.h>
#include <rdma/ib_cache.h>
#include <scsi/scsi_proto.h>
#include <scsi/scsi_tcq.h>
#include <target/target_core_base.h>
@ -1057,7 +1058,12 @@ static int srpt_init_ch_qp(struct srpt_rdma_ch *ch, struct ib_qp *qp)
attr->qp_state = IB_QPS_INIT;
attr->qp_access_flags = IB_ACCESS_LOCAL_WRITE;
attr->port_num = ch->sport->port;
attr->pkey_index = 0;
ret = ib_find_cached_pkey(ch->sport->sdev->device, ch->sport->port,
ch->pkey, &attr->pkey_index);
if (ret < 0)
pr_err("Translating pkey %#x failed (%d) - using index 0\n",
ch->pkey, ret);
ret = ib_modify_qp(qp, attr,
IB_QP_STATE | IB_QP_ACCESS_FLAGS | IB_QP_PORT |
@ -1994,9 +2000,10 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
it_iu_len = be32_to_cpu(req->req_it_iu_len);
pr_info("Received SRP_LOGIN_REQ with i_port_id %pI6, t_port_id %pI6 and it_iu_len %d on port %d (guid=%pI6)\n",
pr_info("Received SRP_LOGIN_REQ with i_port_id %pI6, t_port_id %pI6 and it_iu_len %d on port %d (guid=%pI6); pkey %#04x\n",
req->initiator_port_id, req->target_port_id, it_iu_len,
param->port, &sport->gid);
param->port, &sport->gid,
be16_to_cpu(param->primary_path->pkey));
rsp = kzalloc(sizeof(*rsp), GFP_KERNEL);
rej = kzalloc(sizeof(*rej), GFP_KERNEL);
@ -2073,6 +2080,7 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
init_rcu_head(&ch->rcu);
kref_init(&ch->kref);
ch->pkey = be16_to_cpu(param->primary_path->pkey);
ch->zw_cqe.done = srpt_zerolength_write_done;
INIT_WORK(&ch->release_work, srpt_release_channel_work);
memcpy(ch->i_port_id, req->initiator_port_id, 16);

2
drivers/infiniband/ulp/srpt/ib_srpt.h
View File

@ -266,6 +266,7 @@ enum rdma_ch_state {
* @cmd_wait_list: List of SCSI commands that arrived before the RTU event. This
* list contains struct srpt_ioctx elements and is protected
* against concurrent modification by the cm_id spinlock.
* @pkey: P_Key of the IB partition for this SRP channel.
* @sess: Session information associated with this SRP channel.
* @sess_name: Session name.
* @ini_guid: Initiator port GUID.
@ -294,6 +295,7 @@ struct srpt_rdma_ch {
struct srpt_recv_ioctx **ioctx_recv_ring;
struct list_head list;
struct list_head cmd_wait_list;
uint16_t pkey;
struct se_session *sess;
u8 sess_name[36];
u8 ini_guid[24];