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path: root/drivers/net/ethernet/intel/e1000e/mac.c
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Diffstat (limited to 'drivers/net/ethernet/intel/e1000e/mac.c')
-rw-r--r--drivers/net/ethernet/intel/e1000e/mac.c25
1 files changed, 10 insertions, 15 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/mac.c b/drivers/net/ethernet/intel/e1000e/mac.c
index f457c5703d0c..5bdc3a2d4fd7 100644
--- a/drivers/net/ethernet/intel/e1000e/mac.c
+++ b/drivers/net/ethernet/intel/e1000e/mac.c
@@ -410,9 +410,6 @@ void e1000e_clear_hw_cntrs_base(struct e1000_hw *hw)
410 * Checks to see of the link status of the hardware has changed. If a 410 * Checks to see of the link status of the hardware has changed. If a
411 * change in link status has been detected, then we read the PHY registers 411 * change in link status has been detected, then we read the PHY registers
412 * to get the current speed/duplex if link exists. 412 * to get the current speed/duplex if link exists.
413 *
414 * Returns a negative error code (-E1000_ERR_*) or 0 (link down) or 1 (link
415 * up).
416 **/ 413 **/
417s32 e1000e_check_for_copper_link(struct e1000_hw *hw) 414s32 e1000e_check_for_copper_link(struct e1000_hw *hw)
418{ 415{
@@ -426,20 +423,16 @@ s32 e1000e_check_for_copper_link(struct e1000_hw *hw)
426 * Change or Rx Sequence Error interrupt. 423 * Change or Rx Sequence Error interrupt.
427 */ 424 */
428 if (!mac->get_link_status) 425 if (!mac->get_link_status)
429 return 1; 426 return 0;
427 mac->get_link_status = false;
430 428
431 /* First we want to see if the MII Status Register reports 429 /* First we want to see if the MII Status Register reports
432 * link. If so, then we want to get the current speed/duplex 430 * link. If so, then we want to get the current speed/duplex
433 * of the PHY. 431 * of the PHY.
434 */ 432 */
435 ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link); 433 ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
436 if (ret_val) 434 if (ret_val || !link)
437 return ret_val; 435 goto out;
438
439 if (!link)
440 return 0; /* No link detected */
441
442 mac->get_link_status = false;
443 436
444 /* Check if there was DownShift, must be checked 437 /* Check if there was DownShift, must be checked
445 * immediately after link-up 438 * immediately after link-up
@@ -464,12 +457,14 @@ s32 e1000e_check_for_copper_link(struct e1000_hw *hw)
464 * different link partner. 457 * different link partner.
465 */ 458 */
466 ret_val = e1000e_config_fc_after_link_up(hw); 459 ret_val = e1000e_config_fc_after_link_up(hw);
467 if (ret_val) { 460 if (ret_val)
468 e_dbg("Error configuring flow control\n"); 461 e_dbg("Error configuring flow control\n");
469 return ret_val;
470 }
471 462
472 return 1; 463 return ret_val;
464
465out:
466 mac->get_link_status = true;
467 return ret_val;
473} 468}
474 469
475/** 470/**