Commit 27dd2cac authored by Ben Hutchings's avatar Ben Hutchings Committed by David S. Miller
Browse files

sfc: Add support for MMDs numbered >15 



Combine DEVS0 and DEVS1 registers into a 32-bit mask instead of
reading just DEVS0.

Signed-off-by: default avatarBen Hutchings <bhutchings@solarflare.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f31a45d2

drivers/net/sfc/mdio_10g.c

+13 −11
Original line number Diff line number Diff line
@@ -121,16 +121,18 @@ int mdio_clause45_wait_reset_mmds(struct efx_nic *efx, 
int mdio_clause45_check_mmds(struct efx_nic *efx,

			     unsigned int mmd_mask, unsigned int fatal_mask)

{

	int devices, mmd = 0;

	int probe_mmd;

	u32 devices;

	int mmd = 0, probe_mmd;



	/* Historically we have probed the PHYXS to find out what devices are

	 * present,but that doesn't work so well if the PHYXS isn't expected

	 * to exist, if so just find the first item in the list supplied. */

	probe_mmd = (mmd_mask & MDIO_MMDREG_DEVS0_PHYXS) ? MDIO_MMD_PHYXS :

	probe_mmd = (mmd_mask & MDIO_MMDREG_DEVS_PHYXS) ? MDIO_MMD_PHYXS :

	    __ffs(mmd_mask);

	devices = mdio_clause45_read(efx, efx->mii.phy_id,

				     probe_mmd, MDIO_MMDREG_DEVS0);

	devices = (mdio_clause45_read(efx, efx->mii.phy_id,

				      probe_mmd, MDIO_MMDREG_DEVS0) |

		   mdio_clause45_read(efx, efx->mii.phy_id,

				      probe_mmd, MDIO_MMDREG_DEVS1) << 16);



	/* Check all the expected MMDs are present */

	if (devices < 0) {
@@ -175,14 +177,14 @@ bool mdio_clause45_links_ok(struct efx_nic *efx, unsigned int mmd_mask) 
	else if (efx_phy_mode_disabled(efx->phy_mode))

		return false;

	else if (efx->loopback_mode == LOOPBACK_PHYXS)

		mmd_mask &= ~(MDIO_MMDREG_DEVS0_PHYXS |

			      MDIO_MMDREG_DEVS0_PCS |

			      MDIO_MMDREG_DEVS0_PMAPMD);

		mmd_mask &= ~(MDIO_MMDREG_DEVS_PHYXS |

			      MDIO_MMDREG_DEVS_PCS |

			      MDIO_MMDREG_DEVS_PMAPMD);

	else if (efx->loopback_mode == LOOPBACK_PCS)

		mmd_mask &= ~(MDIO_MMDREG_DEVS0_PCS |

			      MDIO_MMDREG_DEVS0_PMAPMD);

		mmd_mask &= ~(MDIO_MMDREG_DEVS_PCS |

			      MDIO_MMDREG_DEVS_PMAPMD);

	else if (efx->loopback_mode == LOOPBACK_PMAPMD)

		mmd_mask &= ~MDIO_MMDREG_DEVS0_PMAPMD;

		mmd_mask &= ~MDIO_MMDREG_DEVS_PMAPMD;



	while (mmd_mask) {

		if (mmd_mask & 1) {

drivers/net/sfc/mdio_10g.h

+4 −4
Original line number Diff line number Diff line
@@ -73,14 +73,14 @@ 
#define MDIO_ID_MODEL(_id32)	((_id32 >> 4) & 0x3f)

#define MDIO_ID_OUI(_id32)	(_id32 >> 10)



/* Bits in MMDREG_DEVS0. Someone thoughtfully layed things out

/* Bits in MMDREG_DEVS0/1. Someone thoughtfully layed things out

 * so the 'bit present' bit number of an MMD is the number of

 * that MMD */

#define DEV_PRESENT_BIT(_b) (1 << _b)



#define MDIO_MMDREG_DEVS0_PHYXS	 DEV_PRESENT_BIT(MDIO_MMD_PHYXS)

#define MDIO_MMDREG_DEVS0_PCS	 DEV_PRESENT_BIT(MDIO_MMD_PCS)

#define MDIO_MMDREG_DEVS0_PMAPMD DEV_PRESENT_BIT(MDIO_MMD_PMAPMD)

#define MDIO_MMDREG_DEVS_PHYXS	DEV_PRESENT_BIT(MDIO_MMD_PHYXS)

#define MDIO_MMDREG_DEVS_PCS	DEV_PRESENT_BIT(MDIO_MMD_PCS)

#define MDIO_MMDREG_DEVS_PMAPMD	DEV_PRESENT_BIT(MDIO_MMD_PMAPMD)



/* Bits in MMDREG_STAT2 */

#define MDIO_MMDREG_STAT2_PRESENT_VAL	(2)

drivers/net/sfc/tenxpress.c

+3 −3
Original line number Diff line number Diff line
@@ -19,9 +19,9 @@ 


/* We expect these MMDs to be in the package */

/* AN not here as mdio_check_mmds() requires STAT2 support */

#define TENXPRESS_REQUIRED_DEVS (MDIO_MMDREG_DEVS0_PMAPMD | \

				 MDIO_MMDREG_DEVS0_PCS    | \

				 MDIO_MMDREG_DEVS0_PHYXS)

#define TENXPRESS_REQUIRED_DEVS (MDIO_MMDREG_DEVS_PMAPMD	| \

				 MDIO_MMDREG_DEVS_PCS		| \

				 MDIO_MMDREG_DEVS_PHYXS)



#define TENXPRESS_LOOPBACKS ((1 << LOOPBACK_PHYXS) |	\

			     (1 << LOOPBACK_PCS) |	\

drivers/net/sfc/xfp_phy.c

+4 −4
Original line number Diff line number Diff line
@@ -19,9 +19,9 @@ 
#include "phy.h"

#include "mac.h"



#define XFP_REQUIRED_DEVS (MDIO_MMDREG_DEVS0_PCS |	\

			   MDIO_MMDREG_DEVS0_PMAPMD |	\

			   MDIO_MMDREG_DEVS0_PHYXS)

#define XFP_REQUIRED_DEVS (MDIO_MMDREG_DEVS_PCS |	\

			   MDIO_MMDREG_DEVS_PMAPMD |	\

			   MDIO_MMDREG_DEVS_PHYXS)



#define XFP_LOOPBACKS ((1 << LOOPBACK_PCS) |		\

		       (1 << LOOPBACK_PMAPMD) |		\
@@ -64,7 +64,7 @@ static int xfp_reset_phy(struct efx_nic *efx) 
	/* Check that all the MMDs we expect are present and responding. We

	 * expect faults on some if the link is down, but not on the PHY XS */

	rc = mdio_clause45_check_mmds(efx, XFP_REQUIRED_DEVS,

				      MDIO_MMDREG_DEVS0_PHYXS);

				      MDIO_MMDREG_DEVS_PHYXS);

	if (rc < 0)

		goto fail;