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authorJohn Soni Jose <sony.john-n@emulex.com>2012-04-03 23:41:49 -0500
committerJames Bottomley <JBottomley@Parallels.com>2012-04-25 09:29:35 +0100
commit2177199d5150cf61bf26badcb6901176cc13787b (patch)
treed6fc1da211354f6601959ecb6fc7d2a704b1b039
parent605c6cd201714535e2723a60197228050f863a8f (diff)
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[SCSI] be2iscsi: Get Initiator Name for the iSCSI_Host
Implement the ISCSI_HOST_PARAM_INITIATOR_NAME for .get_host_param Signed-off-by: John Soni Jose <sony.john-n@emulex.com> Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
-rw-r--r--drivers/scsi/be2iscsi/be_cmds.c2
-rw-r--r--drivers/scsi/be2iscsi/be_cmds.h12
-rw-r--r--drivers/scsi/be2iscsi/be_iscsi.c50
-rw-r--r--drivers/scsi/be2iscsi/be_mgmt.c26
-rw-r--r--include/scsi/iscsi_proto.h2
5 files changed, 92 insertions, 0 deletions
diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
index cdb15364bc69..d2e9e933f7a3 100644
--- a/drivers/scsi/be2iscsi/be_cmds.c
+++ b/drivers/scsi/be2iscsi/be_cmds.c
@@ -15,6 +15,8 @@
* Costa Mesa, CA 92626
*/
+#include <scsi/iscsi_proto.h>
+
#include "be.h"
#include "be_mgmt.h"
#include "be_main.h"
diff --git a/drivers/scsi/be2iscsi/be_cmds.h b/drivers/scsi/be2iscsi/be_cmds.h
index c85d73cfc79c..f343ed6a9e54 100644
--- a/drivers/scsi/be2iscsi/be_cmds.h
+++ b/drivers/scsi/be2iscsi/be_cmds.h
@@ -513,6 +513,17 @@ struct be_cmd_resp_get_mac_addr {
u32 rsvd[23];
};
+#define BEISCSI_ALIAS_LEN 32
+
+struct be_cmd_hba_name {
+ struct be_cmd_req_hdr hdr;
+ u16 flags;
+ u16 rsvd0;
+ u8 initiator_name[ISCSI_NAME_LEN];
+ u8 initiator_alias[BEISCSI_ALIAS_LEN];
+} __packed;
+
+
int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
struct be_queue_info *eq, int eq_delay);
@@ -531,6 +542,7 @@ int be_poll_mcc(struct be_ctrl_info *ctrl);
int mgmt_check_supported_fw(struct be_ctrl_info *ctrl,
struct beiscsi_hba *phba);
unsigned int be_cmd_get_mac_addr(struct beiscsi_hba *phba);
+unsigned int be_cmd_get_initname(struct beiscsi_hba *phba);
unsigned int beiscsi_get_boot_target(struct beiscsi_hba *phba);
unsigned int beiscsi_get_session_info(struct beiscsi_hba *phba,
u32 boot_session_handle,
diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
index 2bb681ef19ef..1af777474e42 100644
--- a/drivers/scsi/be2iscsi/be_iscsi.c
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -279,6 +279,48 @@ int beiscsi_set_param(struct iscsi_cls_conn *cls_conn,
}
/**
+ * beiscsi_get_initname - Read Initiator Name from flash
+ * @buf: buffer bointer
+ * @phba: The device priv structure instance
+ *
+ * returns number of bytes
+ */
+static int beiscsi_get_initname(char *buf, struct beiscsi_hba *phba)
+{
+ int rc;
+ unsigned int tag, wrb_num;
+ unsigned short status, extd_status;
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_hba_name *resp;
+ struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
+
+ tag = be_cmd_get_initname(phba);
+ if (!tag) {
+ SE_DEBUG(DBG_LVL_1, "Getting Initiator Name Failed\n");
+ return -EBUSY;
+ } else
+ wait_event_interruptible(phba->ctrl.mcc_wait[tag],
+ phba->ctrl.mcc_numtag[tag]);
+
+ wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16;
+ extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8;
+ status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
+
+ if (status || extd_status) {
+ SE_DEBUG(DBG_LVL_1, "MailBox Command Failed with "
+ "status = %d extd_status = %d\n",
+ status, extd_status);
+ free_mcc_tag(&phba->ctrl, tag);
+ return -EAGAIN;
+ }
+ wrb = queue_get_wrb(mccq, wrb_num);
+ free_mcc_tag(&phba->ctrl, tag);
+ resp = embedded_payload(wrb);
+ rc = sprintf(buf, "%s\n", resp->initiator_name);
+ return rc;
+}
+
+/**
* beiscsi_get_host_param - get the iscsi parameter
* @shost: pointer to scsi_host structure
* @param: parameter type identifier
@@ -301,6 +343,14 @@ int beiscsi_get_host_param(struct Scsi_Host *shost,
return status;
}
break;
+ case ISCSI_HOST_PARAM_INITIATOR_NAME:
+ status = beiscsi_get_initname(buf, phba);
+ if (status < 0) {
+ SE_DEBUG(DBG_LVL_1,
+ "Retreiving Initiator Name Failed\n");
+ return status;
+ }
+ break;
default:
return iscsi_host_get_param(shost, param, buf);
}
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index 44762cfa3e12..f7d27e9014c6 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -447,3 +447,29 @@ unsigned int be_cmd_get_mac_addr(struct beiscsi_hba *phba)
return tag;
}
+unsigned int be_cmd_get_initname(struct beiscsi_hba *phba)
+{
+ unsigned int tag = 0;
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_hba_name *req;
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+
+ spin_lock(&ctrl->mbox_lock);
+ tag = alloc_mcc_tag(phba);
+ if (!tag) {
+ spin_unlock(&ctrl->mbox_lock);
+ return tag;
+ }
+
+ wrb = wrb_from_mccq(phba);
+ req = embedded_payload(wrb);
+ wrb->tag0 |= tag;
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
+ OPCODE_ISCSI_INI_CFG_GET_HBA_NAME,
+ sizeof(*req));
+
+ be_mcc_notify(phba);
+ spin_unlock(&ctrl->mbox_lock);
+ return tag;
+}
diff --git a/include/scsi/iscsi_proto.h b/include/scsi/iscsi_proto.h
index 988ba06b3ad6..c1260d80ef30 100644
--- a/include/scsi/iscsi_proto.h
+++ b/include/scsi/iscsi_proto.h
@@ -661,6 +661,8 @@ struct iscsi_reject {
#define ISCSI_DEF_TIME2WAIT 2
+#define ISCSI_NAME_LEN 224
+
/************************* RFC 3720 End *****************************/
#endif /* ISCSI_PROTO_H */