i40e: clean up throttle rate code

The interrupt throttle rate minimum is actually 2us, so
fix that define and while we are there, remove some unused defines.

Change some strings in the function to be a bit less wrappy, and
express the correct limits.

Change-ID: I96829bbc77935e0b57c6f0fc1439fb4152b2960a
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Patrick Lu <patrick.lu@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index b6e745f277cc09be93eb6cf1060fefcab71d5557..afad5aa5a12b5efc4ac392940044242215f4473a 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -1575,11 +1575,9 @@ static int i40e_set_coalesce(struct net_device *netdev,
        } else if (ec->rx_coalesce_usecs == 0) {
                vsi->rx_itr_setting = ec->rx_coalesce_usecs;
                if (ec->use_adaptive_rx_coalesce)
-                       netif_info(pf, drv, netdev,
-                                  "Rx-secs=0, need to disable adaptive-Rx for a complete disable\n");
+                       netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n");
        } else {
-               netif_info(pf, drv, netdev,
-                          "Invalid value, Rx-usecs range is 0, 8-8160\n");
+               netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
                return -EINVAL;
        }
 
@@ -1589,11 +1587,10 @@ static int i40e_set_coalesce(struct net_device *netdev,
        } else if (ec->tx_coalesce_usecs == 0) {
                vsi->tx_itr_setting = ec->tx_coalesce_usecs;
                if (ec->use_adaptive_tx_coalesce)
-                       netif_info(pf, drv, netdev,
-                                  "Tx-secs=0, need to disable adaptive-Tx for a complete disable\n");
+                       netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n");
        } else {
                netif_info(pf, drv, netdev,
-                          "Invalid value, Tx-usecs range is 0, 8-8160\n");
+                          "Invalid value, tx-usecs range is 0-8160\n");
                return -EINVAL;
        }
 

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index d7a625a6a14f54fa1b79456df9de7d14f9ff1809..e60d3accb2e2ec3f2992b056da718d633b978157 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -30,10 +30,7 @@
 /* Interrupt Throttling and Rate Limiting Goodies */
 
 #define I40E_MAX_ITR               0x0FF0  /* reg uses 2 usec resolution */
-#define I40E_MIN_ITR               0x0004  /* reg uses 2 usec resolution */
-#define I40E_MAX_IRATE             0x03F
-#define I40E_MIN_IRATE             0x001
-#define I40E_IRATE_USEC_RESOLUTION 4
+#define I40E_MIN_ITR               0x0001  /* reg uses 2 usec resolution */
 #define I40E_ITR_100K              0x0005
 #define I40E_ITR_20K               0x0019
 #define I40E_ITR_8K                0x003E

diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
index f6dcf9dd9290d95554c7505f4bbd9f5832185597..c7f29626eada77ea577dadcf9cf8d23ffef0fe69 100644 (file)
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
@@ -30,10 +30,7 @@
 /* Interrupt Throttling and Rate Limiting Goodies */
 
 #define I40E_MAX_ITR               0x0FF0  /* reg uses 2 usec resolution */
-#define I40E_MIN_ITR               0x0004  /* reg uses 2 usec resolution */
-#define I40E_MAX_IRATE             0x03F
-#define I40E_MIN_IRATE             0x001
-#define I40E_IRATE_USEC_RESOLUTION 4
+#define I40E_MIN_ITR               0x0001  /* reg uses 2 usec resolution */
 #define I40E_ITR_100K              0x0005
 #define I40E_ITR_20K               0x0019
 #define I40E_ITR_8K                0x003E