dev/e1000/e1000_82543.c

226 	/* link setup */
232 	/* check for link */
237 	/* link info */
764  *  When forcing link to 10 Full or 10 Half, the PHY can reverse the polarity
766  *  the PHY until we have established the link partner's link parameters.
773 	bool link;
794 	 * This loop will early-out if the NO link condition has been met.
816 	/* Recommended delay time after link has been lost */
845 	ret_val = e1000_phy_has_link_generic(hw, PHY_FORCE_TIME, 100000, &link);
993 	/* Setup link and flow control */
998 	 * important that we do this after we have tried to establish link
1000 	 * is no link.
1008  *  e1000_setup_link_82543 - Setup flow control and link settings
1013  *  the generic setup link function, which does the following:
1015  *  control.  Calls the appropriate media-specific link configuration
1016  *  function.  Assuming the adapter has a valid link partner, a valid link
1054  *  e1000_setup_copper_link_82543 - Configure copper link settings
1057  *  Configures the link for auto-neg or forced speed and duplex.  Then we check
1058  *  for link, once link is established calls to configure collision distance
1065 	bool link = true;
1114 	 * Check link status. Wait up to 100 microseconds for link to become
1118 					     &link);
1123 	if (link) {
1124 		DEBUGOUT("Valid link established!!!\n");
1125 		/* Config the MAC and PHY after link is up */
1135 		DEBUGOUT("Unable to establish link!!!\n");
1143  *  e1000_setup_fiber_link_82543 - Setup link for fiber
1147  *  successful setup, poll for link.
1158 	/* Take the link out of reset */
1188  *  e1000_check_for_copper_link_82543 - Check for link (Copper)
1191  *  Checks the phy for link, if link exists, do the following:
1195  *   - configure flow control after link up
1204 	bool link;
1213 	ret_val = e1000_phy_has_link_generic(hw, 1, 0, &link);
1217 	if (!link)
1218 		goto out; /* No link detected */
1226 	 * we have already determined whether we have link or not.
1233 		 * interrupt state to its previous value except for the link
1272 	 * different link partner.
1280 	 * auto-negotiated link.  These are conditions for checking the link
1281 	 * partner capability register.  We use the link speed to determine if
1282 	 * TBI compatibility needs to be turned on or off.  If the link is not
1289 			DEBUGOUT("Error getting link speed and duplex\n");
1294 			 * If link speed is not set to gigabit speed,
1310 			 * turn it on. For compatibility with a TBI link
1328  *  e1000_check_for_fiber_link_82543 - Check for link (Fiber)
1331  *  Checks for link up on the hardware.  If link is not up and we have
1332  *  a signal, then we need to force link up.
1347 	 * If we don't have link (auto-negotiation failed or link partner
1349 	 * and our link partner is not trying to auto-negotiate with us (we
1350 	 * are receiving idles or data), we need to force link up. We also
1363 		DEBUGOUT("NOT RXing /C/, disable AutoNeg and force link.\n");
1368 		/* Force link-up and also force full-duplex. */
1373 		/* Configure Flow Control after forcing link up. */
1381 		 * If we are forcing link and we are receiving /C/ ordered
1383 		 * and disable forced link in the Device Control register
1384 		 * in an attempt to auto-negotiate with our link partner.
1386 		DEBUGOUT("RXing /C/, enable AutoNeg and stop forcing link.\n");