diff options
Diffstat (limited to 'drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c')
| -rw-r--r-- | drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c new file mode 100644 index 000000000000..8cfce95c82fc --- /dev/null +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c @@ -0,0 +1,184 @@ +/* + * aQuantia Corporation Network Driver + * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + */ + +/* File hw_atl_utils_fw2x.c: Definition of firmware 2.x functions for + * Atlantic hardware abstraction layer. + */ + +#include "../aq_hw.h" +#include "../aq_hw_utils.h" +#include "../aq_pci_func.h" +#include "../aq_ring.h" +#include "../aq_vec.h" +#include "hw_atl_utils.h" +#include "hw_atl_llh.h" + +#define HW_ATL_FW2X_MPI_EFUSE_ADDR 0x364 +#define HW_ATL_FW2X_MPI_MBOX_ADDR 0x360 + +#define HW_ATL_FW2X_MPI_CONTROL_ADDR 0x368 +#define HW_ATL_FW2X_MPI_CONTROL2_ADDR 0x36C + +#define HW_ATL_FW2X_MPI_STATE_ADDR 0x370 +#define HW_ATL_FW2X_MPI_STATE2_ADDR 0x374 + +static int aq_fw2x_init(struct aq_hw_s *self) +{ + int err = 0; + + /* check 10 times by 1ms */ + AQ_HW_WAIT_FOR(0U != (self->mbox_addr = + aq_hw_read_reg(self, HW_ATL_FW2X_MPI_MBOX_ADDR)), + 1000U, 10U); + return err; +} + +static enum hw_atl_fw2x_rate link_speed_mask_2fw2x_ratemask(u32 speed) +{ + enum hw_atl_fw2x_rate rate = 0; + + if (speed & AQ_NIC_RATE_10G) + rate |= FW2X_RATE_10G; + + if (speed & AQ_NIC_RATE_5G) + rate |= FW2X_RATE_5G; + + if (speed & AQ_NIC_RATE_5GSR) + rate |= FW2X_RATE_5G; + + if (speed & AQ_NIC_RATE_2GS) + rate |= FW2X_RATE_2G5; + + if (speed & AQ_NIC_RATE_1G) + rate |= FW2X_RATE_1G; + + if (speed & AQ_NIC_RATE_100M) + rate |= FW2X_RATE_100M; + + return rate; +} + +static int aq_fw2x_set_link_speed(struct aq_hw_s *self, u32 speed) +{ + u32 val = link_speed_mask_2fw2x_ratemask(speed); + + aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL_ADDR, val); + + return 0; +} + +static int aq_fw2x_set_state(struct aq_hw_s *self, + enum hal_atl_utils_fw_state_e state) +{ + /* No explicit state in 2x fw */ + return 0; +} + +static int aq_fw2x_update_link_status(struct aq_hw_s *self) +{ + u32 mpi_state = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_STATE_ADDR); + u32 speed = mpi_state & (FW2X_RATE_100M | FW2X_RATE_1G | + FW2X_RATE_2G5 | FW2X_RATE_5G | FW2X_RATE_10G); + struct aq_hw_link_status_s *link_status = &self->aq_link_status; + + if (speed) { + if (speed & FW2X_RATE_10G) + link_status->mbps = 10000; + else if (speed & FW2X_RATE_5G) + link_status->mbps = 5000; + else if (speed & FW2X_RATE_2G5) + link_status->mbps = 2500; + else if (speed & FW2X_RATE_1G) + link_status->mbps = 1000; + else if (speed & FW2X_RATE_100M) + link_status->mbps = 100; + else + link_status->mbps = 10000; + } else { + link_status->mbps = 0; + } + + return 0; +} + +int aq_fw2x_get_mac_permanent(struct aq_hw_s *self, u8 *mac) +{ + int err = 0; + u32 h = 0U; + u32 l = 0U; + u32 mac_addr[2] = { 0 }; + u32 efuse_addr = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_EFUSE_ADDR); + + if (efuse_addr != 0) { + err = hw_atl_utils_fw_downld_dwords(self, + efuse_addr + (40U * 4U), + mac_addr, + ARRAY_SIZE(mac_addr)); + if (err) + return err; + mac_addr[0] = __swab32(mac_addr[0]); + mac_addr[1] = __swab32(mac_addr[1]); + } + + ether_addr_copy(mac, (u8 *)mac_addr); + + if ((mac[0] & 0x01U) || ((mac[0] | mac[1] | mac[2]) == 0x00U)) { + unsigned int rnd = 0; + + get_random_bytes(&rnd, sizeof(unsigned int)); + + l = 0xE3000000U + | (0xFFFFU & rnd) + | (0x00 << 16); + h = 0x8001300EU; + + mac[5] = (u8)(0xFFU & l); + l >>= 8; + mac[4] = (u8)(0xFFU & l); + l >>= 8; + mac[3] = (u8)(0xFFU & l); + l >>= 8; + mac[2] = (u8)(0xFFU & l); + mac[1] = (u8)(0xFFU & h); + h >>= 8; + mac[0] = (u8)(0xFFU & h); + } + return err; +} + +static int aq_fw2x_update_stats(struct aq_hw_s *self) +{ + int err = 0; + u32 mpi_opts = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR); + u32 orig_stats_val = mpi_opts & BIT(CAPS_HI_STATISTICS); + + /* Toggle statistics bit for FW to update */ + mpi_opts = mpi_opts ^ BIT(CAPS_HI_STATISTICS); + aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts); + + /* Wait FW to report back */ + AQ_HW_WAIT_FOR(orig_stats_val != + (aq_hw_read_reg(self, HW_ATL_FW2X_MPI_STATE2_ADDR) & + BIT(CAPS_HI_STATISTICS)), + 1U, 10000U); + if (err) + return err; + + return hw_atl_utils_update_stats(self); +} + +const struct aq_fw_ops aq_fw_2x_ops = { + .init = aq_fw2x_init, + .reset = NULL, + .get_mac_permanent = aq_fw2x_get_mac_permanent, + .set_link_speed = aq_fw2x_set_link_speed, + .set_state = aq_fw2x_set_state, + .update_link_status = aq_fw2x_update_link_status, + .update_stats = aq_fw2x_update_stats, +}; |