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[fc] Send xfer_window_changed() when FCP link is established

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2011-06-24 23:16:17 +01:00
parent bf8bfa23e2
commit 5f608a44a5
3 changed files with 100 additions and 13 deletions
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44
src/net/fc.c
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@@ -1651,6 +1651,8 @@ void fc_ulp_detach ( struct fc_ulp_user *user ) {
*/
int fc_ulp_login ( struct fc_ulp *ulp, const void *param, size_t param_len,
int originated ) {
struct fc_ulp_user *user;
struct fc_ulp_user *tmp;
/* Perform implicit logout if logged in and service parameters differ */
if ( fc_link_ok ( &ulp->link ) &&
@@ -1659,6 +1661,22 @@ int fc_ulp_login ( struct fc_ulp *ulp, const void *param, size_t param_len,
fc_ulp_logout ( ulp, 0 );
}
/* Work around a bug in some versions of the Linux Fibre
* Channel stack, which fail to fully initialise image pairs
* established via a PRLI originated by the Linux stack
* itself.
*/
if ( originated )
ulp->flags |= FC_ULP_ORIGINATED_LOGIN_OK;
if ( ! ( ulp->flags & FC_ULP_ORIGINATED_LOGIN_OK ) ) {
DBGC ( ulp, "FCULP %s/%02x sending extra PRLI to work around "
"Linux bug\n",
fc_ntoa ( &ulp->peer->port_wwn ), ulp->type );
fc_link_stop ( &ulp->link );
fc_link_start ( &ulp->link );
return 0;
}
/* Log in, if applicable */
if ( ! fc_link_ok ( &ulp->link ) ) {
@@ -1685,18 +1703,11 @@ int fc_ulp_login ( struct fc_ulp *ulp, const void *param, size_t param_len,
/* Record login */
fc_link_up ( &ulp->link );
/* Work around a bug in some versions of the Linux Fibre
* Channel stack, which fail to fully initialise image pairs
* established via a PRLI originated by the Linux stack
* itself.
*/
if ( originated )
ulp->flags |= FC_ULP_ORIGINATED_LOGIN_OK;
if ( ! ( ulp->flags & FC_ULP_ORIGINATED_LOGIN_OK ) ) {
DBGC ( ulp, "FCULP %s/%02x sending extra PRLI to work around "
"Linux bug\n",
fc_ntoa ( &ulp->peer->port_wwn ), ulp->type );
fc_link_start ( &ulp->link );
/* Notify users of link state change */
list_for_each_entry_safe ( user, tmp, &ulp->users, list ) {
fc_ulp_user_get ( user );
user->examine ( user );
fc_ulp_user_put ( user );
}
return 0;
@@ -1709,6 +1720,8 @@ int fc_ulp_login ( struct fc_ulp *ulp, const void *param, size_t param_len,
* @v rc Reason for logout
*/
void fc_ulp_logout ( struct fc_ulp *ulp, int rc ) {
struct fc_ulp_user *user;
struct fc_ulp_user *tmp;
DBGC ( ulp, "FCULP %s/%02x logged out: %s\n",
fc_ntoa ( &ulp->peer->port_wwn ), ulp->type, strerror ( rc ) );
@@ -1726,6 +1739,13 @@ void fc_ulp_logout ( struct fc_ulp *ulp, int rc ) {
/* Record logout */
fc_link_err ( &ulp->link, rc );
/* Notify users of link state change */
list_for_each_entry_safe ( user, tmp, &ulp->users, list ) {
fc_ulp_user_get ( user );
user->examine ( user );
fc_ulp_user_put ( user );
}
/* Close ULP if there are no clients attached */
if ( list_empty ( &ulp->users ) )
fc_ulp_close ( ulp, rc );