enic: driver/firmware API updates

Add driver/firmware compatibility check.
Update firmware notify cmd to honor notify area size.
Add new version of init cmd.
Add link_down_cnt to notify area to track link down count.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 18 insertions, 1 deletions

diff --git a/drivers/net/enic/vnic_devcmd.h b/drivers/net/enic/vnic_devcmd.h
index d8617a3373b1..8062c75154e6 100644
--- a/drivers/net/enic/vnic_devcmd.h
+++ b/drivers/net/enic/vnic_devcmd.h
@@ -168,7 +168,8 @@ enum vnic_devcmd_cmd {
         CMD_CLOSE               = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 25),
 
         /* initialize virtual link: (u32)a0=flags (see CMD_INITF_*) */
-        CMD_INIT                = _CMDCNW(_CMD_DIR_READ, _CMD_VTYPE_ALL, 26),
+/***** Replaced by CMD_INIT *****/
+        CMD_INIT_v1             = _CMDCNW(_CMD_DIR_READ, _CMD_VTYPE_ALL, 26),
 
         /* variant of CMD_INIT, with provisioning info
          *     (u64)a0=paddr of vnic_devcmd_provinfo
@@ -198,6 +199,14 @@ enum vnic_devcmd_cmd {
 
         /* undo initialize of virtual link */
         CMD_DEINIT              = _CMDCNW(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 34),
+
+        /* initialize virtual link: (u32)a0=flags (see CMD_INITF_*) */
+        CMD_INIT                = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 35),
+
+        /* check fw capability of a cmd:
+         * in:  (u32)a0=cmd
+         * out: (u32)a0=errno, 0:valid cmd, a1=supported VNIC_STF_* bits */
+        CMD_CAPABILITY          = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 36),
 };
 
 /* flags for CMD_OPEN */
@@ -249,8 +258,16 @@ struct vnic_devcmd_notify {
         u32 uif;                /* uplink interface */
         u32 status;             /* status bits (see VNIC_STF_*) */
         u32 error;              /* error code (see ERR_*) for first ERR */
+        u32 link_down_cnt;      /* running count of link down transitions */
 };
 #define VNIC_STF_FATAL_ERR      0x0001  /* fatal fw error */
+#define VNIC_STF_STD_PAUSE      0x0002  /* standard link-level pause on */
+#define VNIC_STF_PFC_PAUSE      0x0004  /* priority flow control pause on */
+/* all supported status flags */
+#define VNIC_STF_ALL            (VNIC_STF_FATAL_ERR |\
+                                 VNIC_STF_STD_PAUSE |\
+                                 VNIC_STF_PFC_PAUSE |\
+                                 0)
 
 struct vnic_devcmd_provinfo {
         u8 oui[3];