libcxgbi : support ipv6 address host_param

libcxgbi was always returning an ipv4 address for ISCSI_HOST_PARAM_IPADDRESS,
return appropriate address based on address family

Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: Karen Xie <kxie@chelsio.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Christoph Hellwig <hch@lst.de>

diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c
index 54fa6e0bc1bbb595e3683cc77b56ae084bfff908..674d498b46ab0ba380655fa4e9649b3fabf5e49d 100644 (file)
--- a/drivers/scsi/cxgbi/libcxgbi.c
+++ b/drivers/scsi/cxgbi/libcxgbi.c
@@ -399,6 +399,35 @@ EXPORT_SYMBOL_GPL(cxgbi_hbas_add);
  *   If the source port is outside our allocation range, the caller is
  *   responsible for keeping track of their port usage.
  */
+
+static struct cxgbi_sock *find_sock_on_port(struct cxgbi_device *cdev,
+                                           unsigned char port_id)
+{
+       struct cxgbi_ports_map *pmap = &cdev->pmap;
+       unsigned int i;
+       unsigned int used;
+
+       if (!pmap->max_connect || !pmap->used)
+               return NULL;
+
+       spin_lock_bh(&pmap->lock);
+       used = pmap->used;
+       for (i = 0; used && i < pmap->max_connect; i++) {
+               struct cxgbi_sock *csk = pmap->port_csk[i];
+
+               if (csk) {
+                       if (csk->port_id == port_id) {
+                               spin_unlock_bh(&pmap->lock);
+                               return csk;
+                       }
+                       used--;
+               }
+       }
+       spin_unlock_bh(&pmap->lock);
+
+       return NULL;
+}
+
 static int sock_get_port(struct cxgbi_sock *csk)
 {
        struct cxgbi_device *cdev = csk->cdev;
@@ -749,6 +778,7 @@ static struct cxgbi_sock *cxgbi_check_route6(struct sockaddr *dst_addr)
        csk->daddr6.sin6_addr = daddr6->sin6_addr;
        csk->daddr6.sin6_port = daddr6->sin6_port;
        csk->daddr6.sin6_family = daddr6->sin6_family;
+       csk->saddr6.sin6_family = daddr6->sin6_family;
        csk->saddr6.sin6_addr = pref_saddr;
 
        neigh_release(n);
@@ -2647,12 +2677,14 @@ int cxgbi_get_host_param(struct Scsi_Host *shost, enum iscsi_host_param param,
                break;
        case ISCSI_HOST_PARAM_IPADDRESS:
        {
-               __be32 addr;
-
-               addr = cxgbi_get_iscsi_ipv4(chba);
-               len = sprintf(buf, "%pI4", &addr);
+               struct cxgbi_sock *csk = find_sock_on_port(chba->cdev,
+                                                          chba->port_id);
+               if (csk) {
+                       len = sprintf(buf, "%pIS",
+                                     (struct sockaddr *)&csk->saddr);
+               }
                log_debug(1 << CXGBI_DBG_ISCSI,
-                       "hba %s, ipv4 %pI4.\n", chba->ndev->name, &addr);
+                         "hba %s, addr %s.\n", chba->ndev->name, buf);
                break;
        }
        default:

diff --git a/drivers/scsi/cxgbi/libcxgbi.h b/drivers/scsi/cxgbi/libcxgbi.h
index 1d98fad6a0ab7198ae81ef0e8f5765fabc72f0b9..2c7cb1c0c453d307418afc2eb4d73bb103c6c1f0 100644 (file)
--- a/drivers/scsi/cxgbi/libcxgbi.h
+++ b/drivers/scsi/cxgbi/libcxgbi.h
@@ -700,11 +700,6 @@ static inline void cxgbi_set_iscsi_ipv4(struct cxgbi_hba *chba, __be32 ipaddr)
                        chba->ndev->name);
 }
 
-static inline __be32 cxgbi_get_iscsi_ipv4(struct cxgbi_hba *chba)
-{
-       return chba->ipv4addr;
-}
-
 struct cxgbi_device *cxgbi_device_register(unsigned int, unsigned int);
 void cxgbi_device_unregister(struct cxgbi_device *);
 void cxgbi_device_unregister_all(unsigned int flag);