[dpdk-dev] [PATCH 12/61] net/qede/base: use default mtu from shared memory

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

Read and use the default mtu value from shared-memory.

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>
---
 drivers/net/qede/base/ecore.h         |    2 ++
 drivers/net/qede/base/ecore_dev.c     |    3 +++
 drivers/net/qede/base/ecore_mcp.c     |   10 ++++++++++
 drivers/net/qede/base/ecore_mcp_api.h |    2 ++
 drivers/net/qede/qede_if.h            |    1 +
 drivers/net/qede/qede_main.c          |    2 ++
 6 files changed, 20 insertions(+)

diff --git a/drivers/net/qede/base/ecore.h b/drivers/net/qede/base/ecore.h
index a6cf52e..25c96f8 100644
--- a/drivers/net/qede/base/ecore.h
+++ b/drivers/net/qede/base/ecore.h
@@ -377,6 +377,8 @@ struct ecore_hw_info {
 
 	/* Default DCBX mode */
 	u8 dcbx_mode;
+
+	u16 mtu;
 };
 
 struct ecore_hw_cid_data {
diff --git a/drivers/net/qede/base/ecore_dev.c b/drivers/net/qede/base/ecore_dev.c
index 2fe9d04..2c768d8 100644
--- a/drivers/net/qede/base/ecore_dev.c
+++ b/drivers/net/qede/base/ecore_dev.c
@@ -2887,6 +2887,9 @@ static void ecore_hw_info_port_num(struct ecore_hwfn *p_hwfn,
 
 	ecore_get_num_funcs(p_hwfn, p_ptt);
 
+	if (ecore_mcp_is_init(p_hwfn))
+		p_hwfn->hw_info.mtu = p_hwfn->mcp_info->func_info.mtu;
+
 	/* In case of forcing the driver's default resource allocation, calling
 	 * ecore_hw_get_resc() should come after initializing the personality
 	 * and after getting the number of functions, since the calculation of
diff --git a/drivers/net/qede/base/ecore_mcp.c b/drivers/net/qede/base/ecore_mcp.c
index afd0685..b744c42 100644
--- a/drivers/net/qede/base/ecore_mcp.c
+++ b/drivers/net/qede/base/ecore_mcp.c
@@ -1432,6 +1432,16 @@ enum _ecore_status_t ecore_mcp_fill_shmem_func_info(struct ecore_hwfn *p_hwfn,
 
 	info->ovlan = (u16)(shmem_info.ovlan_stag & FUNC_MF_CFG_OV_STAG_MASK);
 
+	info->mtu = (u16)shmem_info.mtu_size;
+
+	if (info->mtu == 0)
+		info->mtu = 1500;
+
+	info->mtu = (u16)shmem_info.mtu_size;
+
+	if (info->mtu == 0)
+		info->mtu = 1500;
+
 	DP_VERBOSE(p_hwfn, (ECORE_MSG_SP | ECORE_MSG_IFUP),
 		   "Read configuration from shmem: pause_on_host %02x"
 		    " protocol %02x BW [%02x - %02x]"
diff --git a/drivers/net/qede/base/ecore_mcp_api.h b/drivers/net/qede/base/ecore_mcp_api.h
index 72a58e4..1be22dd 100644
--- a/drivers/net/qede/base/ecore_mcp_api.h
+++ b/drivers/net/qede/base/ecore_mcp_api.h
@@ -84,6 +84,8 @@ struct ecore_mcp_function_info {
 
 #define ECORE_MCP_VLAN_UNSET		(0xffff)
 	u16 ovlan;
+
+	u16 mtu;
 };
 
 struct ecore_mcp_nvm_common {
diff --git a/drivers/net/qede/qede_if.h b/drivers/net/qede/qede_if.h
index 4b23bb9..18404fb 100644
--- a/drivers/net/qede/qede_if.h
+++ b/drivers/net/qede/qede_if.h
@@ -34,6 +34,7 @@ struct qed_dev_info {
 	uint32_t flash_size;
 	uint8_t mf_mode;
 	bool tx_switching;
+	u16 mtu;
 	/* To be added... */
 };
 
diff --git a/drivers/net/qede/qede_main.c b/drivers/net/qede/qede_main.c
index 332b1f8..e76346e 100644
--- a/drivers/net/qede/qede_main.c
+++ b/drivers/net/qede/qede_main.c
@@ -365,6 +365,8 @@ static int qed_slowpath_start(struct ecore_dev *edev,
 				      &dev_info->mfw_rev, NULL);
 	}
 
+	dev_info->mtu = ECORE_LEADING_HWFN(edev)->hw_info.mtu;
+
 	return 0;
 }
 
-- 
1.7.10.3