[dpdk-dev] [PATCH 05/17] qede/base: allow MTU change via vport-update

[Rasesh Mody]

From: Harish Patil <harish.pa...@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 at 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.h       |    1 +
 drivers/net/qede/qede_rxtx.c         |    2 ++
 4 files changed, 12 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 d61080b..6ba79de 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.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;
-- 
1.7.10.3