i40e: Display error message if module does not meet thermal requirements

This patch causes error message to be displayed when NIC detects
insertion of module that does not meet thermal requirements.

Signed-off-by: Filip Sadowski <filip.sadowski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

4 files changed, 22 insertions, 5 deletions

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index c78448daa7a1..4dc6d43f8812 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -451,6 +451,7 @@ struct i40e_pf {
 #define I40E_FLAG_CLIENT_RESET                  BIT_ULL(54)
 #define I40E_FLAG_TEMP_LINK_POLLING             BIT_ULL(55)
 #define I40E_FLAG_CLIENT_L2_CHANGE              BIT_ULL(56)
+#define I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED    BIT_ULL(57)
 #define I40E_FLAG_LEGACY_RX                     BIT_ULL(58)
 #define I40E_FLAG_SOURCE_PRUNING_DISABLED       BIT_ULL(59)
 
diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h b/drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h
index 50c5a4c630b8..a8f65aed5421 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h
@@ -1772,6 +1772,7 @@ enum i40e_aq_phy_type {
         I40E_PHY_TYPE_25GBASE_SR                = 0x21,
         I40E_PHY_TYPE_25GBASE_LR                = 0x22,
         I40E_PHY_TYPE_MAX,
+        I40E_PHY_TYPE_NOT_SUPPORTED_HIGH_TEMP   = 0xFD,
         I40E_PHY_TYPE_EMPTY                     = 0xFE,
         I40E_PHY_TYPE_DEFAULT                   = 0xFF,
 };
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 628101bb08d4..3d6d6a283327 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -6558,12 +6558,26 @@ static void i40e_handle_link_event(struct i40e_pf *pf,
          */
         i40e_link_event(pf);
 
-        /* check for unqualified module, if link is down */
-        if ((status->link_info & I40E_AQ_MEDIA_AVAILABLE) &&
-            (!(status->an_info & I40E_AQ_QUALIFIED_MODULE)) &&
-            (!(status->link_info & I40E_AQ_LINK_UP)))
+        /* Check if module meets thermal requirements */
+        if (status->phy_type == I40E_PHY_TYPE_NOT_SUPPORTED_HIGH_TEMP) {
                 dev_err(&pf->pdev->dev,
-                        "The driver failed to link because an unqualified module was detected.\n");
+                        "Rx/Tx is disabled on this device because the module does not meet thermal requirements.\n");
+                dev_err(&pf->pdev->dev,
+                        "Refer to the Intel(R) Ethernet Adapters and Devices User Guide for a list of supported modules.\n");
+        } else {
+                /* check for unqualified module, if link is down, suppress
+                 * the message if link was forced to be down.
+                 */
+                if ((status->link_info & I40E_AQ_MEDIA_AVAILABLE) &&
+                    (!(status->an_info & I40E_AQ_QUALIFIED_MODULE)) &&
+                    (!(status->link_info & I40E_AQ_LINK_UP)) &&
+                    (!(pf->flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED))) {
+                        dev_err(&pf->pdev->dev,
+                                "Rx/Tx is disabled on this device because an unsupported SFP module type was detected.\n");
+                        dev_err(&pf->pdev->dev,
+                                "Refer to the Intel(R) Ethernet Adapters and Devices User Guide for a list of supported modules.\n");
+                }
+        }
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_adminq_cmd.h b/drivers/net/ethernet/intel/i40evf/i40e_adminq_cmd.h
index dc6fc8b1bc79..60c892f559b9 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_adminq_cmd.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_adminq_cmd.h
@@ -1768,6 +1768,7 @@ enum i40e_aq_phy_type {
         I40E_PHY_TYPE_25GBASE_SR                = 0x21,
         I40E_PHY_TYPE_25GBASE_LR                = 0x22,
         I40E_PHY_TYPE_MAX,
+        I40E_PHY_TYPE_NOT_SUPPORTED_HIGH_TEMP   = 0xFD,
         I40E_PHY_TYPE_EMPTY                     = 0xFE,
         I40E_PHY_TYPE_DEFAULT                   = 0xFF,
 };