[dpdk-dev] [PATCH 06/52] i40e/base: Add module_types and update_link_info

[Jingjing Wu <jingjing.wu@intel.com>]

Add a module_types variable to the link_info struct to save the module
information from get_phy_capabilities. This information can be used to
determine which speeds the module supports.

Also add a new function update_link_info which updates the module_types
parameter and then calls get_link_info. This function should be called
in place of get_link_info so that the module_types variable stays
up-to-date with the rest of the link information.

Also rework the function get_link_status to allow caller to get all
return values in the call chain bubbled back to the source, which keeps
information about failures from being lost.

Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
---
 drivers/net/i40e/base/i40e_common.c    | 46 ++++++++++++++++++++++++++--------
 drivers/net/i40e/base/i40e_prototype.h |  3 ++-
 drivers/net/i40e/base/i40e_type.h      | 18 +++++++++++++
 3 files changed, 55 insertions(+), 12 deletions(-)

diff --git a/drivers/net/i40e/base/i40e_common.c b/drivers/net/i40e/base/i40e_common.c
index 455f98d..2a3da6e 100644
--- a/drivers/net/i40e/base/i40e_common.c
+++ b/drivers/net/i40e/base/i40e_common.c
@@ -1547,14 +1547,14 @@ enum i40e_status_code i40e_set_fc(struct i40e_hw *hw, u8 *aq_failures,
 			*aq_failures |= I40E_SET_FC_AQ_FAIL_SET;
 	}
 	/* Update the link info */
-	status = i40e_aq_get_link_info(hw, true, NULL, NULL);
+	status = i40e_update_link_info(hw);
 	if (status) {
 		/* Wait a little bit (on 40G cards it sometimes takes a really
 		 * long time for link to come back from the atomic reset)
 		 * and try once more
 		 */
 		i40e_msec_delay(1000);
-		status = i40e_aq_get_link_info(hw, true, NULL, NULL);
+		status = i40e_update_link_info(hw);
 	}
 	if (status)
 		*aq_failures |= I40E_SET_FC_AQ_FAIL_UPDATE;
@@ -1743,7 +1743,6 @@ aq_get_link_info_exit:
 	return status;
 }
 
-
 /**
  * i40e_aq_set_phy_int_mask
  * @hw: pointer to the hw struct
@@ -2286,27 +2285,52 @@ enum i40e_status_code i40e_aq_send_driver_version(struct i40e_hw *hw,
 /**
  * i40e_get_link_status - get status of the HW network link
  * @hw: pointer to the hw struct
+ * @link_up: pointer to bool (true/false = linkup/linkdown)
  *
- * Returns true if link is up, false if link is down.
+ * Variable link_up true if link is up, false if link is down.
+ * The variable link_up is invalid if returned value of status != I40E_SUCCESS
  *
  * Side effect: LinkStatusEvent reporting becomes enabled
  **/
-bool i40e_get_link_status(struct i40e_hw *hw)
+enum i40e_status_code i40e_get_link_status(struct i40e_hw *hw, bool *link_up)
 {
 	enum i40e_status_code status = I40E_SUCCESS;
-	bool link_status = false;
 
 	if (hw->phy.get_link_info) {
-		status = i40e_aq_get_link_info(hw, true, NULL, NULL);
+		status = i40e_update_link_info(hw);
 
 		if (status != I40E_SUCCESS)
-			goto i40e_get_link_status_exit;
+			i40e_debug(hw, I40E_DEBUG_LINK, "get link failed: status %d\n",
+				   status);
 	}
 
-	link_status = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
+	*link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
+
+	return status;
+}
 
-i40e_get_link_status_exit:
-	return link_status;
+/**
+ * i40e_updatelink_status - update status of the HW network link
+ * @hw: pointer to the hw struct
+ **/
+enum i40e_status_code i40e_update_link_info(struct i40e_hw *hw)
+{
+	struct i40e_aq_get_phy_abilities_resp abilities;
+	enum i40e_status_code status = I40E_SUCCESS;
+
+	status = i40e_aq_get_link_info(hw, true, NULL, NULL);
+	if (status)
+		return status;
+
+	status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
+					      NULL);
+	if (status)
+		return status;
+
+	memcpy(hw->phy.link_info.module_type, &abilities.module_type,
+		sizeof(hw->phy.link_info.module_type));
+
+	return status;
 }
 
 /**
diff --git a/drivers/net/i40e/base/i40e_prototype.h b/drivers/net/i40e/base/i40e_prototype.h
index 54df577..0c66af7 100644
--- a/drivers/net/i40e/base/i40e_prototype.h
+++ b/drivers/net/i40e/base/i40e_prototype.h
@@ -381,7 +381,8 @@ enum i40e_status_code i40e_init_shared_code(struct i40e_hw *hw);
 enum i40e_status_code i40e_pf_reset(struct i40e_hw *hw);
 void i40e_clear_hw(struct i40e_hw *hw);
 void i40e_clear_pxe_mode(struct i40e_hw *hw);
-bool i40e_get_link_status(struct i40e_hw *hw);
+enum i40e_status_code i40e_get_link_status(struct i40e_hw *hw, bool *link_up);
+enum i40e_status_code i40e_update_link_info(struct i40e_hw *hw);
 enum i40e_status_code i40e_get_mac_addr(struct i40e_hw *hw, u8 *mac_addr);
 enum i40e_status_code i40e_read_bw_from_alt_ram(struct i40e_hw *hw,
 		u32 *max_bw, u32 *min_bw, bool *min_valid, bool *max_valid);
diff --git a/drivers/net/i40e/base/i40e_type.h b/drivers/net/i40e/base/i40e_type.h
index d9dc59f..b6c3002 100644
--- a/drivers/net/i40e/base/i40e_type.h
+++ b/drivers/net/i40e/base/i40e_type.h
@@ -237,6 +237,24 @@ struct i40e_link_status {
 	bool crc_enable;
 	u8 pacing;
 	u8 requested_speeds;
+	u8 module_type[3];
+	/* 1st byte: module identifier */
+#define I40E_MODULE_TYPE_SFP		0x03
+#define I40E_MODULE_TYPE_QSFP		0x0D
+	/* 2nd byte: ethernet compliance codes for 10/40G */
+#define I40E_MODULE_TYPE_40G_ACTIVE	0x01
+#define I40E_MODULE_TYPE_40G_LR4	0x02
+#define I40E_MODULE_TYPE_40G_SR4	0x04
+#define I40E_MODULE_TYPE_40G_CR4	0x08
+#define I40E_MODULE_TYPE_10G_BASE_SR	0x10
+#define I40E_MODULE_TYPE_10G_BASE_LR	0x20
+#define I40E_MODULE_TYPE_10G_BASE_LRM	0x40
+#define I40E_MODULE_TYPE_10G_BASE_ER	0x80
+	/* 3rd byte: ethernet compliance codes for 1G */
+#define I40E_MODULE_TYPE_1000BASE_SX	0x01
+#define I40E_MODULE_TYPE_1000BASE_LX	0x02
+#define I40E_MODULE_TYPE_1000BASE_CX	0x04
+#define I40E_MODULE_TYPE_1000BASE_T	0x08
 };
 
 struct i40e_phy_info {
-- 
2.4.0