diff options
Diffstat (limited to 'drivers/net/sfc/mdio_10g.h')
| -rw-r--r-- | drivers/net/sfc/mdio_10g.h | 282 |
1 files changed, 39 insertions, 243 deletions
diff --git a/drivers/net/sfc/mdio_10g.h b/drivers/net/sfc/mdio_10g.h index 7014d2279c20..6b14421a7444 100644 --- a/drivers/net/sfc/mdio_10g.h +++ b/drivers/net/sfc/mdio_10g.h @@ -10,247 +10,53 @@ #ifndef EFX_MDIO_10G_H #define EFX_MDIO_10G_H +#include <linux/mdio.h> + /* - * Definitions needed for doing 10G MDIO as specified in clause 45 - * MDIO, which do not appear in Linux yet. Also some helper functions. + * Helper functions for doing 10G MDIO as specified in IEEE 802.3 clause 45. */ #include "efx.h" #include "boards.h" -/* Numbering of the MDIO Manageable Devices (MMDs) */ -/* Physical Medium Attachment/ Physical Medium Dependent sublayer */ -#define MDIO_MMD_PMAPMD (1) -/* WAN Interface Sublayer */ -#define MDIO_MMD_WIS (2) -/* Physical Coding Sublayer */ -#define MDIO_MMD_PCS (3) -/* PHY Extender Sublayer */ -#define MDIO_MMD_PHYXS (4) -/* Extender Sublayer */ -#define MDIO_MMD_DTEXS (5) -/* Transmission convergence */ -#define MDIO_MMD_TC (6) -/* Auto negotiation */ -#define MDIO_MMD_AN (7) -/* Clause 22 extension */ -#define MDIO_MMD_C22EXT 29 - -/* Generic register locations */ -#define MDIO_MMDREG_CTRL1 (0) -#define MDIO_MMDREG_STAT1 (1) -#define MDIO_MMDREG_IDHI (2) -#define MDIO_MMDREG_IDLOW (3) -#define MDIO_MMDREG_SPEED (4) -#define MDIO_MMDREG_DEVS0 (5) -#define MDIO_MMDREG_DEVS1 (6) -#define MDIO_MMDREG_CTRL2 (7) -#define MDIO_MMDREG_STAT2 (8) -#define MDIO_MMDREG_TXDIS (9) - -/* Bits in MMDREG_CTRL1 */ -/* Reset */ -#define MDIO_MMDREG_CTRL1_RESET_LBN (15) -#define MDIO_MMDREG_CTRL1_RESET_WIDTH (1) -/* Loopback */ -/* Loopback bit for WIS, PCS, PHYSX and DTEXS */ -#define MDIO_MMDREG_CTRL1_LBACK_LBN (14) -#define MDIO_MMDREG_CTRL1_LBACK_WIDTH (1) -/* Low power */ -#define MDIO_MMDREG_CTRL1_LPOWER_LBN (11) -#define MDIO_MMDREG_CTRL1_LPOWER_WIDTH (1) - -/* Bits in MMDREG_STAT1 */ -#define MDIO_MMDREG_STAT1_FAULT_LBN (7) -#define MDIO_MMDREG_STAT1_FAULT_WIDTH (1) -/* Link state */ -#define MDIO_MMDREG_STAT1_LINK_LBN (2) -#define MDIO_MMDREG_STAT1_LINK_WIDTH (1) -/* Low power ability */ -#define MDIO_MMDREG_STAT1_LPABLE_LBN (1) -#define MDIO_MMDREG_STAT1_LPABLE_WIDTH (1) - -/* Bits in combined ID regs */ -static inline unsigned mdio_id_rev(u32 id) { return id & 0xf; } -static inline unsigned mdio_id_model(u32 id) { return (id >> 4) & 0x3f; } -extern unsigned mdio_id_oui(u32 id); - -/* 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_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) -#define MDIO_MMDREG_DEVS_AN DEV_PRESENT_BIT(MDIO_MMD_AN) -#define MDIO_MMDREG_DEVS_C22EXT DEV_PRESENT_BIT(MDIO_MMD_C22EXT) - -/* Bits in MMDREG_SPEED */ -#define MDIO_MMDREG_SPEED_10G_LBN 0 -#define MDIO_MMDREG_SPEED_10G_WIDTH 1 -#define MDIO_MMDREG_SPEED_1000M_LBN 4 -#define MDIO_MMDREG_SPEED_1000M_WIDTH 1 -#define MDIO_MMDREG_SPEED_100M_LBN 5 -#define MDIO_MMDREG_SPEED_100M_WIDTH 1 -#define MDIO_MMDREG_SPEED_10M_LBN 6 -#define MDIO_MMDREG_SPEED_10M_WIDTH 1 - -/* Bits in MMDREG_STAT2 */ -#define MDIO_MMDREG_STAT2_PRESENT_VAL (2) -#define MDIO_MMDREG_STAT2_PRESENT_LBN (14) -#define MDIO_MMDREG_STAT2_PRESENT_WIDTH (2) - -/* Bits in MMDREG_TXDIS */ -#define MDIO_MMDREG_TXDIS_GLOBAL_LBN (0) -#define MDIO_MMDREG_TXDIS_GLOBAL_WIDTH (1) - -/* MMD-specific bits, ordered by MMD, then register */ -#define MDIO_PMAPMD_CTRL1_LBACK_LBN (0) -#define MDIO_PMAPMD_CTRL1_LBACK_WIDTH (1) - -/* PMA type (4 bits) */ -#define MDIO_PMAPMD_CTRL2_10G_CX4 (0x0) -#define MDIO_PMAPMD_CTRL2_10G_EW (0x1) -#define MDIO_PMAPMD_CTRL2_10G_LW (0x2) -#define MDIO_PMAPMD_CTRL2_10G_SW (0x3) -#define MDIO_PMAPMD_CTRL2_10G_LX4 (0x4) -#define MDIO_PMAPMD_CTRL2_10G_ER (0x5) -#define MDIO_PMAPMD_CTRL2_10G_LR (0x6) -#define MDIO_PMAPMD_CTRL2_10G_SR (0x7) -/* Reserved */ -#define MDIO_PMAPMD_CTRL2_10G_BT (0x9) -/* Reserved */ -/* Reserved */ -#define MDIO_PMAPMD_CTRL2_1G_BT (0xc) -/* Reserved */ -#define MDIO_PMAPMD_CTRL2_100_BT (0xe) -#define MDIO_PMAPMD_CTRL2_10_BT (0xf) -#define MDIO_PMAPMD_CTRL2_TYPE_MASK (0xf) - -/* PMA 10GBT registers */ -#define MDIO_PMAPMD_10GBT_TXPWR (131) -#define MDIO_PMAPMD_10GBT_TXPWR_SHORT_LBN (0) -#define MDIO_PMAPMD_10GBT_TXPWR_SHORT_WIDTH (1) - -/* PHY XGXS Status 2 */ -#define MDIO_PHYXS_STATUS2 (8) -#define MDIO_PHYXS_STATUS2_RX_FAULT_LBN 10 - -/* PHY XGXS lane state */ -#define MDIO_PHYXS_LANE_STATE (0x18) -#define MDIO_PHYXS_LANE_ALIGNED_LBN (12) - -/* AN registers */ -#define MDIO_AN_CTRL_XNP_LBN 13 -#define MDIO_AN_STATUS (1) -#define MDIO_AN_STATUS_XNP_LBN (7) -#define MDIO_AN_STATUS_PAGE_LBN (6) -#define MDIO_AN_STATUS_AN_DONE_LBN (5) -#define MDIO_AN_STATUS_LP_AN_CAP_LBN (0) - -#define MDIO_AN_ADVERTISE 16 -#define MDIO_AN_ADVERTISE_XNP_LBN 12 -#define MDIO_AN_LPA 19 -#define MDIO_AN_XNP 22 -#define MDIO_AN_LPA_XNP 25 - -#define MDIO_AN_10GBT_CTRL 32 -#define MDIO_AN_10GBT_CTRL_ADV_10G_LBN 12 -#define MDIO_AN_10GBT_STATUS (33) -#define MDIO_AN_10GBT_STATUS_MS_FLT_LBN (15) /* MASTER/SLAVE config fault */ -#define MDIO_AN_10GBT_STATUS_MS_LBN (14) /* MASTER/SLAVE config */ -#define MDIO_AN_10GBT_STATUS_LOC_OK_LBN (13) /* Local OK */ -#define MDIO_AN_10GBT_STATUS_REM_OK_LBN (12) /* Remote OK */ -#define MDIO_AN_10GBT_STATUS_LP_10G_LBN (11) /* Link partner is 10GBT capable */ -#define MDIO_AN_10GBT_STATUS_LP_LTA_LBN (10) /* LP loop timing ability */ -#define MDIO_AN_10GBT_STATUS_LP_TRR_LBN (9) /* LP Training Reset Request */ - +static inline unsigned efx_mdio_id_rev(u32 id) { return id & 0xf; } +static inline unsigned efx_mdio_id_model(u32 id) { return (id >> 4) & 0x3f; } +extern unsigned efx_mdio_id_oui(u32 id); -/* Packing of the prt and dev arguments of clause 45 style MDIO into a - * single int so they can be passed into the mdio_read/write functions - * that currently exist. Note that as Falcon is the only current user, - * the packed form is chosen to match what Falcon needs to write into - * a register. This is checked at compile-time so do not change it. If - * your target chip needs things layed out differently you will need - * to unpack the arguments in your chip-specific mdio functions. - */ - /* These are defined by the standard. */ -#define MDIO45_PRT_ID_WIDTH (5) -#define MDIO45_DEV_ID_WIDTH (5) - -/* The prt ID is just packed in immediately to the left of the dev ID */ -#define MDIO45_PRT_DEV_WIDTH (MDIO45_PRT_ID_WIDTH + MDIO45_DEV_ID_WIDTH) - -#define MDIO45_PRT_ID_MASK ((1 << MDIO45_PRT_DEV_WIDTH) - 1) -/* This is the prt + dev extended by 1 bit to hold the 'is clause 45' flag. */ -#define MDIO45_XPRT_ID_WIDTH (MDIO45_PRT_DEV_WIDTH + 1) -#define MDIO45_XPRT_ID_MASK ((1 << MDIO45_XPRT_ID_WIDTH) - 1) -#define MDIO45_XPRT_ID_IS10G (1 << (MDIO45_XPRT_ID_WIDTH - 1)) - - -#define MDIO45_PRT_ID_COMP_LBN MDIO45_DEV_ID_WIDTH -#define MDIO45_PRT_ID_COMP_WIDTH MDIO45_PRT_ID_WIDTH -#define MDIO45_DEV_ID_COMP_LBN 0 -#define MDIO45_DEV_ID_COMP_WIDTH MDIO45_DEV_ID_WIDTH - -/* Compose port and device into a phy_id */ -static inline int mdio_clause45_pack(u8 prt, u8 dev) -{ - efx_dword_t phy_id; - EFX_POPULATE_DWORD_2(phy_id, MDIO45_PRT_ID_COMP, prt, - MDIO45_DEV_ID_COMP, dev); - return MDIO45_XPRT_ID_IS10G | EFX_DWORD_VAL(phy_id); -} - -static inline void mdio_clause45_unpack(u32 val, u8 *prt, u8 *dev) +static inline int efx_mdio_read(struct efx_nic *efx, int devad, int addr) { - efx_dword_t phy_id; - EFX_POPULATE_DWORD_1(phy_id, EFX_DWORD_0, val); - *prt = EFX_DWORD_FIELD(phy_id, MDIO45_PRT_ID_COMP); - *dev = EFX_DWORD_FIELD(phy_id, MDIO45_DEV_ID_COMP); + return efx->mdio.mdio_read(efx->net_dev, efx->mdio.prtad, devad, addr); } -static inline int mdio_clause45_read(struct efx_nic *efx, - u8 prt, u8 dev, u16 addr) +static inline void +efx_mdio_write(struct efx_nic *efx, int devad, int addr, int value) { - return efx->mii.mdio_read(efx->net_dev, - mdio_clause45_pack(prt, dev), addr); + efx->mdio.mdio_write(efx->net_dev, efx->mdio.prtad, devad, addr, value); } -static inline void mdio_clause45_write(struct efx_nic *efx, - u8 prt, u8 dev, u16 addr, int value) +static inline u32 efx_mdio_read_id(struct efx_nic *efx, int mmd) { - efx->mii.mdio_write(efx->net_dev, - mdio_clause45_pack(prt, dev), addr, value); -} - - -static inline u32 mdio_clause45_read_id(struct efx_nic *efx, int mmd) -{ - int phy_id = efx->mii.phy_id; - u16 id_low = mdio_clause45_read(efx, phy_id, mmd, MDIO_MMDREG_IDLOW); - u16 id_hi = mdio_clause45_read(efx, phy_id, mmd, MDIO_MMDREG_IDHI); + u16 id_low = efx_mdio_read(efx, mmd, MDIO_DEVID2); + u16 id_hi = efx_mdio_read(efx, mmd, MDIO_DEVID1); return (id_hi << 16) | (id_low); } -static inline bool mdio_clause45_phyxgxs_lane_sync(struct efx_nic *efx) +static inline bool efx_mdio_phyxgxs_lane_sync(struct efx_nic *efx) { int i, lane_status; bool sync; for (i = 0; i < 2; ++i) - lane_status = mdio_clause45_read(efx, efx->mii.phy_id, - MDIO_MMD_PHYXS, - MDIO_PHYXS_LANE_STATE); + lane_status = efx_mdio_read(efx, MDIO_MMD_PHYXS, + MDIO_PHYXS_LNSTAT); - sync = !!(lane_status & (1 << MDIO_PHYXS_LANE_ALIGNED_LBN)); + sync = !!(lane_status & MDIO_PHYXS_LNSTAT_ALIGN); if (!sync) EFX_LOG(efx, "XGXS lane status: %x\n", lane_status); return sync; } -extern const char *mdio_clause45_mmd_name(int mmd); +extern const char *efx_mdio_mmd_name(int mmd); /* * Reset a specific MMD and wait for reset to clear. @@ -258,54 +64,44 @@ extern const char *mdio_clause45_mmd_name(int mmd); * * This function will sleep */ -extern int mdio_clause45_reset_mmd(struct efx_nic *efx, int mmd, - int spins, int spintime); +extern int efx_mdio_reset_mmd(struct efx_nic *efx, int mmd, + int spins, int spintime); -/* As mdio_clause45_check_mmd but for multiple MMDs */ -int mdio_clause45_check_mmds(struct efx_nic *efx, - unsigned int mmd_mask, unsigned int fatal_mask); +/* As efx_mdio_check_mmd but for multiple MMDs */ +int efx_mdio_check_mmds(struct efx_nic *efx, + unsigned int mmd_mask, unsigned int fatal_mask); /* Check the link status of specified mmds in bit mask */ -extern bool mdio_clause45_links_ok(struct efx_nic *efx, - unsigned int mmd_mask); +extern bool efx_mdio_links_ok(struct efx_nic *efx, unsigned int mmd_mask); /* Generic transmit disable support though PMAPMD */ -extern void mdio_clause45_transmit_disable(struct efx_nic *efx); +extern void efx_mdio_transmit_disable(struct efx_nic *efx); /* Generic part of reconfigure: set/clear loopback bits */ -extern void mdio_clause45_phy_reconfigure(struct efx_nic *efx); +extern void efx_mdio_phy_reconfigure(struct efx_nic *efx); /* Set the power state of the specified MMDs */ -extern void mdio_clause45_set_mmds_lpower(struct efx_nic *efx, - int low_power, unsigned int mmd_mask); - -/* Read (some of) the PHY settings over MDIO */ -extern void mdio_clause45_get_settings(struct efx_nic *efx, - struct ethtool_cmd *ecmd); - -/* Read (some of) the PHY settings over MDIO */ -extern void -mdio_clause45_get_settings_ext(struct efx_nic *efx, struct ethtool_cmd *ecmd, - u32 xnp, u32 xnp_lpa); +extern void efx_mdio_set_mmds_lpower(struct efx_nic *efx, + int low_power, unsigned int mmd_mask); /* Set (some of) the PHY settings over MDIO */ -extern int mdio_clause45_set_settings(struct efx_nic *efx, - struct ethtool_cmd *ecmd); - -/* Set pause parameters to be advertised through AN (if available) */ -extern void mdio_clause45_set_pause(struct efx_nic *efx); +extern int efx_mdio_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd); /* Get pause parameters from AN if available (otherwise return * requested pause parameters) */ -enum efx_fc_type mdio_clause45_get_pause(struct efx_nic *efx); +enum efx_fc_type efx_mdio_get_pause(struct efx_nic *efx); /* Wait for specified MMDs to exit reset within a timeout */ -extern int mdio_clause45_wait_reset_mmds(struct efx_nic *efx, - unsigned int mmd_mask); +extern int efx_mdio_wait_reset_mmds(struct efx_nic *efx, + unsigned int mmd_mask); /* Set or clear flag, debouncing */ -extern void mdio_clause45_set_flag(struct efx_nic *efx, u8 prt, u8 dev, - u16 addr, int bit, bool sense); +static inline void +efx_mdio_set_flag(struct efx_nic *efx, int devad, int addr, + int mask, bool state) +{ + mdio_set_flag(&efx->mdio, efx->mdio.prtad, devad, addr, mask, state); +} #endif /* EFX_MDIO_10G_H */ |