[net 1/3] igb: Fix for failure to init on some 82576 devices.
From: Peter P Waskiewicz Jr <hidden>
Date: 2012-08-04 10:26:31
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Carolyn Wyborny <redacted> Move nvm invalid size check to before size assigned by mac_type for 82575 and later parts in get_invariants function. This fixes a problem found on some 82576 devices where the part will not initialize because the nvm_read function pointer ends up getting assigned to the incorrect function. Reported By: Stefan Assmann [off-list ref] Signed-off-by: Carolyn Wyborny <redacted> Tested-by: Jeff Pieper <redacted> Signed-off-by: Peter P Waskiewicz Jr <redacted> --- drivers/net/ethernet/intel/igb/e1000_82575.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c
index 5e84eaa..ba994fb 100644
--- a/drivers/net/ethernet/intel/igb/e1000_82575.c
+++ b/drivers/net/ethernet/intel/igb/e1000_82575.c@@ -254,6 +254,14 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw) */ size += NVM_WORD_SIZE_BASE_SHIFT; + /* + * Check for invalid size + */ + if ((hw->mac.type == e1000_82576) && (size > 15)) { + pr_notice("The NVM size is not valid, defaulting to 32K\n"); + size = 15; + } + nvm->word_size = 1 << size; if (hw->mac.type < e1000_i210) { nvm->opcode_bits = 8;
@@ -281,14 +289,6 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw) } else nvm->type = e1000_nvm_flash_hw; - /* - * Check for invalid size - */ - if ((hw->mac.type == e1000_82576) && (size > 15)) { - pr_notice("The NVM size is not valid, defaulting to 32K\n"); - size = 15; - } - /* NVM Function Pointers */ switch (hw->mac.type) { case e1000_82580:
--
1.7.10.4