From 47ac8ca7351578bfd7eb57eac3b63edb320fb6a7 Mon Sep 17 00:00:00 2001
From: Gautam Dawar <gdawar@solarflare.com>
Date: Mon, 10 Jun 2019 08:38:40 +0100
Subject: [PATCH] net/sfc/base: implement proxy auth MCDI event handling

Add the capability to receive MCDI proxy event from firmware and
invoke the client driver registered function to handle it.

Signed-off-by: Gautam Dawar <gdawar@solarflare.com>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
---
 drivers/net/sfc/base/ef10_ev.c   |  7 +++++++
 drivers/net/sfc/base/efx.h       |  3 +++
 drivers/net/sfc/base/efx_check.h |  9 ++++++++-
 drivers/net/sfc/base/efx_mcdi.c  | 12 ++++++++++++
 drivers/net/sfc/base/efx_mcdi.h  |  7 +++++++
 5 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/drivers/net/sfc/base/ef10_ev.c b/drivers/net/sfc/base/ef10_ev.c
index 99cae3fa3b..8cabb4e928 100644
--- a/drivers/net/sfc/base/ef10_ev.c
+++ b/drivers/net/sfc/base/ef10_ev.c
@@ -1227,6 +1227,13 @@ ef10_ev_mcdi(
 		break;
 #endif /* EFSYS_OPT_MCDI_PROXY_AUTH */
 
+#if EFSYS_OPT_MCDI_PROXY_AUTH_SERVER
+	case MCDI_EVENT_CODE_PROXY_REQUEST:
+		efx_mcdi_ev_proxy_request(enp,
+			MCDI_EV_FIELD(eqp, PROXY_REQUEST_BUFF_INDEX));
+		break;
+#endif /* EFSYS_OPT_MCDI_PROXY_AUTH_SERVER */
+
 	case MCDI_EVENT_CODE_LINKCHANGE: {
 		efx_link_mode_t link_mode;
 
diff --git a/drivers/net/sfc/base/efx.h b/drivers/net/sfc/base/efx.h
index 8a3eb17a6c..97c4e62340 100644
--- a/drivers/net/sfc/base/efx.h
+++ b/drivers/net/sfc/base/efx.h
@@ -243,6 +243,9 @@ typedef struct efx_mcdi_transport_s {
 #if EFSYS_OPT_MCDI_PROXY_AUTH
 	void		(*emt_ev_proxy_response)(void *, uint32_t, efx_rc_t);
 #endif /* EFSYS_OPT_MCDI_PROXY_AUTH */
+#if EFSYS_OPT_MCDI_PROXY_AUTH_SERVER
+	void		(*emt_ev_proxy_request)(void *, uint32_t);
+#endif /* EFSYS_OPT_MCDI_PROXY_AUTH_SERVER */
 } efx_mcdi_transport_t;
 
 extern	__checkReturn	efx_rc_t
diff --git a/drivers/net/sfc/base/efx_check.h b/drivers/net/sfc/base/efx_check.h
index 85edaef7d7..06983dc593 100644
--- a/drivers/net/sfc/base/efx_check.h
+++ b/drivers/net/sfc/base/efx_check.h
@@ -119,8 +119,15 @@
 # endif
 #endif /* EFSYS_OPT_MCDI_LOGGING */
 
+#if EFSYS_OPT_MCDI_PROXY_AUTH_SERVER
+/* Support MCDI proxy authorization (server) */
+# if !EFSYS_OPT_MCDI_PROXY_AUTH
+#  error "MCDI_PROXY_AUTH_SERVER requires MCDI_PROXY_AUTH"
+# endif
+#endif /* EFSYS_OPT_MCDI_PROXY_AUTH_SERVER */
+
 #if EFSYS_OPT_MCDI_PROXY_AUTH
-/* Support MCDI proxy authorization */
+/* Support MCDI proxy authorization (client) */
 # if !EFSYS_OPT_MCDI
 #  error "MCDI_PROXY_AUTH requires MCDI"
 # endif
diff --git a/drivers/net/sfc/base/efx_mcdi.c b/drivers/net/sfc/base/efx_mcdi.c
index 584fd4d2f7..325c2e44dd 100644
--- a/drivers/net/sfc/base/efx_mcdi.c
+++ b/drivers/net/sfc/base/efx_mcdi.c
@@ -845,6 +845,18 @@ efx_mcdi_ev_proxy_response(
 }
 #endif /* EFSYS_OPT_MCDI_PROXY_AUTH */
 
+#if EFSYS_OPT_MCDI_PROXY_AUTH_SERVER
+			void
+efx_mcdi_ev_proxy_request(
+	__in		efx_nic_t *enp,
+	__in		unsigned int index)
+{
+	const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
+
+	if (emtp->emt_ev_proxy_request != NULL)
+		emtp->emt_ev_proxy_request(emtp->emt_context, index);
+}
+#endif /* EFSYS_OPT_MCDI_PROXY_AUTH_SERVER */
 			void
 efx_mcdi_ev_death(
 	__in		efx_nic_t *enp,
diff --git a/drivers/net/sfc/base/efx_mcdi.h b/drivers/net/sfc/base/efx_mcdi.h
index a9e0255371..56c0ab1050 100644
--- a/drivers/net/sfc/base/efx_mcdi.h
+++ b/drivers/net/sfc/base/efx_mcdi.h
@@ -87,6 +87,13 @@ efx_mcdi_ev_proxy_response(
 	__in		unsigned int status);
 #endif
 
+#if EFSYS_OPT_MCDI_PROXY_AUTH_SERVER
+extern			void
+efx_mcdi_ev_proxy_request(
+	__in		efx_nic_t *enp,
+	__in		unsigned int index);
+#endif /* EFSYS_OPT_MCDI_PROXY_AUTH_SERVER */
+
 extern			void
 efx_mcdi_ev_death(
 	__in		efx_nic_t *enp,
-- 
2.20.1