[dpdk-dev] [PATCH v4 17/32] net/qede/base: allow MTU change via vport-update

[Rasesh Mody <rasesh.mody@qlogic.com>]

From: Harish Patil <harish.patil@qlogic.com>

Add support to allow MTU change on a deactivated vport in
the qede/base driver and the core driver shall utilize the same.

Signed-off-by: Harish Patil <harish.patil@qlogic.com>
---
 drivers/net/qede/base/ecore_l2.c     | 5 +++++
 drivers/net/qede/base/ecore_l2_api.h | 4 ++++
 drivers/net/qede/qede_eth_if.c       | 1 +
 drivers/net/qede/qede_eth_if.h       | 1 +
 drivers/net/qede/qede_rxtx.c         | 2 ++
 5 files changed, 13 insertions(+)

diff --git a/drivers/net/qede/base/ecore_l2.c b/drivers/net/qede/base/ecore_l2.c
index 5a38ad2..83a62e0 100644
--- a/drivers/net/qede/base/ecore_l2.c
+++ b/drivers/net/qede/base/ecore_l2.c
@@ -427,6 +427,11 @@ ecore_sp_vport_update(struct ecore_hwfn *p_hwfn,
 	ecore_sp_update_accept_mode(p_hwfn, p_ramrod, p_params->accept_flags);
 	ecore_sp_vport_update_sge_tpa(p_hwfn, p_ramrod,
 				      p_params->sge_tpa_params);
+	if (p_params->mtu) {
+		p_ramrod->common.update_mtu_flg = 1;
+		p_ramrod->common.mtu = OSAL_CPU_TO_LE16(p_params->mtu);
+	}
+
 	return ecore_spq_post(p_hwfn, p_ent, OSAL_NULL);
 }
 
diff --git a/drivers/net/qede/base/ecore_l2_api.h b/drivers/net/qede/base/ecore_l2_api.h
index 09688eb..447d1fb 100644
--- a/drivers/net/qede/base/ecore_l2_api.h
+++ b/drivers/net/qede/base/ecore_l2_api.h
@@ -322,6 +322,10 @@ struct ecore_sp_vport_update_params {
 	struct ecore_rss_params	*rss_params;
 	struct ecore_filter_accept_flags accept_flags;
 	struct ecore_sge_tpa_params *sge_tpa_params;
+	/* MTU change - notice this requires the vport to be disabled.
+	 * If non-zero, value would be used.
+	 */
+	u16 mtu;
 };
 
 /**
diff --git a/drivers/net/qede/qede_eth_if.c b/drivers/net/qede/qede_eth_if.c
index e108af1..9855d0e 100644
--- a/drivers/net/qede/qede_eth_if.c
+++ b/drivers/net/qede/qede_eth_if.c
@@ -92,6 +92,7 @@ qed_update_vport(struct ecore_dev *edev, struct qed_update_vport_params *params)
 	sp_params.accept_any_vlan = params->accept_any_vlan;
 	sp_params.update_accept_any_vlan_flg =
 	    params->update_accept_any_vlan_flg;
+	sp_params.mtu = params->mtu;
 
 	/* RSS - is a bit tricky, since upper-layer isn't familiar with hwfns.
 	 * We need to re-fix the rss values per engine for CMT.
diff --git a/drivers/net/qede/qede_eth_if.h b/drivers/net/qede/qede_eth_if.h
index 299a2aa..7840a37 100644
--- a/drivers/net/qede/qede_eth_if.h
+++ b/drivers/net/qede/qede_eth_if.h
@@ -75,6 +75,7 @@ struct qed_update_vport_params {
 	uint8_t accept_any_vlan;
 	uint8_t update_rss_flg;
 	struct qed_update_vport_rss_params rss_params;
+	uint16_t mtu;
 };
 
 struct qed_start_vport_params {
diff --git a/drivers/net/qede/qede_rxtx.c b/drivers/net/qede/qede_rxtx.c
index e3409a9..6973d1c 100644
--- a/drivers/net/qede/qede_rxtx.c
+++ b/drivers/net/qede/qede_rxtx.c
@@ -650,6 +650,8 @@ static int qede_start_queues(struct rte_eth_dev *eth_dev, bool clear_stats)
 
 	/* Prepare and send the vport enable */
 	memset(&vport_update_params, 0, sizeof(vport_update_params));
+	/* Update MTU via vport update */
+	vport_update_params.mtu = qdev->mtu;
 	vport_update_params.vport_id = 0;
 	vport_update_params.update_vport_active_flg = 1;
 	vport_update_params.vport_active_flg = 1;
-- 
1.8.3.1