ixgbe: consolidate reporting of MSIX vectors into a single function

This patch modifies ixgbe_get_pcie_msix_count_generic() to support
all current HW and removes the 82598 specific function.

- change the type of ixgbe_get_pcie_msix_count_generic() to u16
- include a check to make sure the maximum allowed number of vectors
is not exceeded.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 1 insertions, 24 deletions

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
index 85d2e2c4ce4a..56fd46844f65 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
@@ -91,29 +91,6 @@ out:
 	IXGBE_WRITE_REG(hw, IXGBE_GCR, gcr);
 }
 
-/**
- *  ixgbe_get_pcie_msix_count_82598 - Gets MSI-X vector count
- *  @hw: pointer to hardware structure
- *
- *  Read PCIe configuration space, and get the MSI-X vector count from
- *  the capabilities table.
- **/
-static u16 ixgbe_get_pcie_msix_count_82598(struct ixgbe_hw *hw)
-{
-	struct ixgbe_adapter *adapter = hw->back;
-	u16 msix_count;
-	pci_read_config_word(adapter->pdev, IXGBE_PCIE_MSIX_82598_CAPS,
-	                     &msix_count);
-	msix_count &= IXGBE_PCIE_MSIX_TBL_SZ_MASK;
-
-	/* MSI-X count is zero-based in HW, so increment to give proper value */
-	msix_count++;
-
-	return msix_count;
-}
-
-/**
- */
 static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
 {
 	struct ixgbe_mac_info *mac = &hw->mac;
@@ -126,7 +103,7 @@ static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
 	mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
 	mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
 	mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
-	mac->max_msix_vectors = ixgbe_get_pcie_msix_count_82598(hw);
+	mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
 
 	return 0;
 }