From: Kei Tokunaga <ktokunag@redhat.com>
Subject: [RHEL5.1 PATCH 21/21] Expand VNIF number per a guest domain over  four
Date: Thu, 07 Jun 2007 03:49:41 -0400
Bugzilla: 223908
Message-Id: <4667B895.60700@redhat.com>
Changelog: [xen] Expand VNIF number per guest domain to over four


bz223908
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=223908

Backport of cset#14073.

This is to update xencommize_mini_grant_table_op for
GNTTABOP_query_size.  Without this fix, the number
of VNIF connections cannot be increased.

Thanks,
Kei


rh bug 242139

# HG changeset patch
# User awilliam@xenbuild2.aw
# Date 1172009531 25200
# Node ID 409e94d0a35babaa945e0406301e151f2550b87a
# Parent  d907467f08cd4b55604961f4da4224d3ad5fe9d4
[IA64] Update xencommize_mini_grant_table_op for GNTTABOP_query_size

Signed-off-by: Alex Williamson <alex.williamson@hp.com>


---

 linux-2.6.18-21.el5-gerd-order-kei/arch/ia64/xen/xcom_mini.c           |    3 +
 linux-2.6.18-21.el5-gerd-order-kei/include/xen/interface/grant_table.h |   19 ++++++++++
 2 files changed, 22 insertions(+)

diff -puN arch/ia64/xen/xcom_mini.c~14073-IA64_Update_xencommize_mini_grant_table_op_for_GNTTABOP_query_size arch/ia64/xen/xcom_mini.c
--- linux-2.6.18-21.el5-gerd-order/arch/ia64/xen/xcom_mini.c~14073-IA64_Update_xencommize_mini_grant_table_op_for_GNTTABOP_query_size	2007-06-07 02:44:34.000000000 -0400
+++ linux-2.6.18-21.el5-gerd-order-kei/arch/ia64/xen/xcom_mini.c	2007-06-07 02:44:34.000000000 -0400
@@ -96,6 +96,9 @@ xencommize_mini_grant_table_op(struct xe
 	case GNTTABOP_copy:
 		argsize = sizeof(struct gnttab_copy);
 		break;
+	case GNTTABOP_query_size:
+		argsize = sizeof(struct gnttab_query_size);
+		break;
 	default:
 		printk("%s: unknown mini grant table op %d\n", __func__, cmd);
 		BUG();
diff -puN include/xen/interface/grant_table.h~14073-IA64_Update_xencommize_mini_grant_table_op_for_GNTTABOP_query_size include/xen/interface/grant_table.h
--- linux-2.6.18-21.el5-gerd-order/include/xen/interface/grant_table.h~14073-IA64_Update_xencommize_mini_grant_table_op_for_GNTTABOP_query_size	2007-06-07 02:44:34.000000000 -0400
+++ linux-2.6.18-21.el5-gerd-order-kei/include/xen/interface/grant_table.h	2007-06-07 02:44:34.000000000 -0400
@@ -291,6 +291,25 @@ typedef struct gnttab_copy {
 } gnttab_copy_t;
 DEFINE_XEN_GUEST_HANDLE(gnttab_copy_t);
 
+/*
+ * GNTTABOP_query_size: Query the current and maximum sizes of the shared
+ * grant table.
+ * NOTES:
+ *  1. <dom> may be specified as DOMID_SELF.
+ *  2. Only a sufficiently-privileged domain may specify <dom> != DOMID_SELF.
+ */
+#define GNTTABOP_query_size           6
+struct gnttab_query_size {
+    /* IN parameters. */
+    domid_t  dom;
+    /* OUT parameters. */
+    uint32_t nr_frames;
+    uint32_t max_nr_frames;
+    int16_t  status;              /* GNTST_* */
+};
+typedef struct gnttab_query_size gnttab_query_size_t;
+DEFINE_XEN_GUEST_HANDLE(gnttab_query_size_t);
+
 
 /*
  * Bitfield values for update_pin_status.flags.

_