From: Rasesh Mody <rasesh.mody@cavium.com>
Date: Wed, 29 Mar 2017 20:36:12 +0000 (-0700)
Subject: net/qede/base: use default MTU from shared memory
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=5c11b7066f9003386c906042dd0850d70e5991e0;p=dpdk.git

net/qede/base: use default MTU from shared memory

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

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>
---

diff --git a/drivers/net/qede/base/ecore.h b/drivers/net/qede/base/ecore.h
index a6cf52e4b1..25c96f83ef 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 ee5009060f..87c1c23f9a 100644
--- a/drivers/net/qede/base/ecore_dev.c
+++ b/drivers/net/qede/base/ecore_dev.c
@@ -2879,6 +2879,9 @@ ecore_get_hw_info(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 
 	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 df6ebd2a81..8720ae7f8c 100644
--- a/drivers/net/qede/base/ecore_mcp.c
+++ b/drivers/net/qede/base/ecore_mcp.c
@@ -1431,6 +1431,16 @@ 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 72a58e45e8..1be22dd2c0 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 4b23bb95dd..18404fbdc9 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 332b1f8d02..e76346ecbe 100644
--- a/drivers/net/qede/qede_main.c
+++ b/drivers/net/qede/qede_main.c
@@ -365,6 +365,8 @@ qed_fill_dev_info(struct ecore_dev *edev, struct qed_dev_info *dev_info)
 				      &dev_info->mfw_rev, NULL);
 	}
 
+	dev_info->mtu = ECORE_LEADING_HWFN(edev)->hw_info.mtu;
+
 	return 0;
 }