dev/bge/if_bge.c

1249 	/* Set the port mode (MII/GMII) to match the link speed. */
1261 	/* Set MAC flow control behavior to match link flow control settings. */
2577 	/* ack/clear link change events */
2584 	 * Enable attention when the link has changed state for
2601 	 * Clear any pending link state attention.
2602 	 * Otherwise some link state change events may be lost until attention
2604 	 * It's not necessary on newer BCM chips - perhaps enabling link
2611 	/* Enable link state change attentions. */
4100 			/* Prevent PCIE link training during global reset */
4134 			DELAY(500000); /* wait for link training to complete */
4572 	/* Note link event. It will be processed by POLL_AND_CHECK_STATUS. */
4712 	 * Do the mandatory PCI flush as well as get the link status.
4793 		 * Do not touch PHY if we have link up. This could break
4802 		 * link status manually. Here we register pending link event
4806 		/* In polling mode we poll link state in bge_poll(). */
5695 	 * if needed and clear any pending link state attention.
5697 	 * for link state changes and thus will not UP the link and
5932 			 * If link partner has us in XOFF state then wait for
5941 			 * If link partner has us in XOFF state then wait for
6070 	/* Clear MAC's link state (PHY may still have link UP). */
6072 		if_printf(sc->bge_ifp, "link DOWN\n");
6131 	uint32_t link, status;
6135 	/* Clear 'pending link event' flag. */
6139 	 * Process link state changes.
6140 	 * Grrr. The link status word in the status block does
6144 	 * async link changes. Unfortunately, this also means that
6145 	 * we have to read the MAC status register to detect link
6149 	 * XXX: perhaps link state detection procedure used for
6164 					if_printf(sc->bge_ifp, "link UP\n");
6170 					if_printf(sc->bge_ifp, "link DOWN\n");
6196 					if_printf(sc->bge_ifp, "link UP\n");
6203 				if_printf(sc->bge_ifp, "link DOWN\n");
6210 		 * PHY link status directly.
6212 		link = (CSR_READ_4(sc, BGE_MI_STS) & BGE_MISTS_LINK) ? 1 : 0;
6214 		if (link != sc->bge_link ||
6223 					if_printf(sc->bge_ifp, "link UP\n");
6229 					if_printf(sc->bge_ifp, "link DOWN\n");
6235 		 * link status.
6242 	/* Disable MAC attention when link is up. */