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Support for 1G autoneg on ixgbe #56

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Support for 1G autoneg on ixgbe #56

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11 changes: 11 additions & 0 deletions src/drivers/net/intelx.c
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Expand Up @@ -183,6 +183,7 @@ static int intelx_open ( struct net_device *netdev ) {
uint32_t rdrxctl;
uint32_t rxctrl;
uint32_t dca_rxctrl;
uint32_t autoc;
int rc;

/* Create transmit descriptor ring */
Expand Down Expand Up @@ -259,6 +260,16 @@ static int intelx_open ( struct net_device *netdev ) {
/* Fill receive ring */
intel_refill_rx ( intel );

/* Support 1G autoneg */
autoc = readl ( intel->regs + INTELX_AUTOC );
DBGC ( intel, "INTEL %p neg (autoc %08x)\n", intel, autoc );
autoc &= ~INTELX_AUTOC_LMS_MASK;
autoc |= INTELX_AUTOC_LMS_KX4_KX_KR_1G_AN;
autoc |= INTELX_AUTOC_KX_SUPP;
autoc |= INTELX_AUTOC_AN_RESTART;
writel ( autoc, intel->regs + INTELX_AUTOC );
DBGC ( intel, "INTEL %p neg (autoc %08x)\n", intel, autoc );

/* Update link state */
intelx_check_link ( netdev );

Expand Down
7 changes: 7 additions & 0 deletions src/drivers/net/intelx.h
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Expand Up @@ -114,4 +114,11 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#define INTELX_LINKS 0x042a4UL
#define INTELX_LINKS_UP 0x40000000UL /**< Link up */

/** Auto config */
#define INTELX_AUTOC 0x042A0UL
#define INTELX_AUTOC_LMS_MASK (0x7 << 13)
#define INTELX_AUTOC_LMS_KX4_KX_KR_1G_AN (0x6 << 13)
#define INTELX_AUTOC_KX_SUPP 0x40000000UL
#define INTELX_AUTOC_AN_RESTART 0x00001000UL

#endif /* _INTELX_H */