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BLUPR0701MB1652; 6:QfImaNS/4LnMu/9L6GFaI47GaOJaTMclcyZqTfqT8NGZ+McAzvrgAewjE8K4NWvg1rGakXKGgmABA2Xq2iKvGZ6ZrNgIU/gQRC0tV8RFBZ/w3p6BLJ3C78064CiFXl583Rlhw6LCJmwMZNq959mE6Ex4nWSyr/U07I5SlOa+1N8/BXGkvkX4/JCS0xvZCpVLRkz6XrHsIIDizAoMC3SoZlI5YYD4JvPz664Bb6b++A9c4cCuHiWBBTSXSCDAATzV434y4jKftLn2YeLxY57tPRsOjPqyuUQolxTII9JD5F4HZkRgAOSUFcFoaSt/c3qV0fdTPInmy8BSGGpnlc8v3DJ+5skW0o2CttI0268aH4nu96OX3fnpX69owTUp4Z99V5SaokcUAWPHaiwyw1EwzyyJQm7I7+suFaSEj/tTqlRYnfQ6/w6ARcBp3xxd3xOY6gfoD2uqajQdDxSkKuLu6g==; 5:r8PXFfRa5K68+PXniXDHXzvnIVUj7T7+KHbKX11vWtatOVBGuTykfJM1g6hrHu+qjEwZ0vGzcUcUOQF4aX1lAJgOMNn21nsdRXX3hgwiCBpOrBCW1lIg2ti5PTyLCj8EjJccwUjE0PavTj6UUCCXGNb3vM4Lv6ZM2ro3RfcSuNo=; 7:PE1Cn+Vzjb4A5RRlR4jekAkK0Mn7Fyeqj/+gGRsnaiNN7ajjHJ2l2VVsIT4ItWxb8olk2NZGe9Zs179U76kI5D/d2JA9SZxFYnkk76IeFShK16//E9NeksBEh8siQjnfzAiOFkN1SysMGc4f2FNq7LyUw3wJJnhncKUIPQGdiO2HXYt2v+vqskEwADYyLizNLsUi863vAx05Dweb6S3yyCTM9RQg8jQOrbXec4yKJKHMbFye2QuQTEsMccMCBVDm SpamDiagnosticOutput: 1:99 SpamDiagnosticMetadata: NSPM X-OriginatorOrg: aquantia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Sep 2018 15:23:14.1934 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 35f31961-f9fd-45fe-5495-08d614d5d51a X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 83e2e134-991c-4ede-8ced-34d47e38e6b1 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BLUPR0701MB1652 Subject: [dpdk-dev] [PATCH 07/21] net/atlantic: hardware register access routines X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Signed-off-by: Igor Russkikh --- drivers/net/atlantic/atl_hw_regs.c | 58 +++++++++++++++++++++++++++++++++++++ drivers/net/atlantic/atl_hw_regs.h | 59 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 117 insertions(+) create mode 100644 drivers/net/atlantic/atl_hw_regs.c create mode 100644 drivers/net/atlantic/atl_hw_regs.h diff --git a/drivers/net/atlantic/atl_hw_regs.c b/drivers/net/atlantic/atl_hw_regs.c new file mode 100644 index 000000000..7301d08e7 --- /dev/null +++ b/drivers/net/atlantic/atl_hw_regs.c @@ -0,0 +1,58 @@ +/* + * 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 aq_hw_utils.c: Definitions of helper functions used across + * hardware layer. + */ + +#include "atl_hw_regs.h" + +#include +#include + +void aq_hw_write_reg_bit(struct aq_hw_s *aq_hw, u32 addr, u32 msk, + u32 shift, u32 val) +{ + if (msk ^ ~0) { + u32 reg_old, reg_new; + + reg_old = aq_hw_read_reg(aq_hw, addr); + reg_new = (reg_old & (~msk)) | (val << shift); + + if (reg_old != reg_new) + aq_hw_write_reg(aq_hw, addr, reg_new); + } else { + aq_hw_write_reg(aq_hw, addr, val); + } +} + +u32 aq_hw_read_reg_bit(struct aq_hw_s *aq_hw, u32 addr, u32 msk, u32 shift) +{ + return ((aq_hw_read_reg(aq_hw, addr) & msk) >> shift); +} + +u32 aq_hw_read_reg(struct aq_hw_s *hw, u32 reg) +{ + return rte_le_to_cpu_32(rte_read32((u8*)hw->mmio + reg)); +} + +void aq_hw_write_reg(struct aq_hw_s *hw, u32 reg, u32 value) +{ + rte_write32((rte_cpu_to_le_32(value)), (u8*)hw->mmio + reg); +} + +int aq_hw_err_from_flags(struct aq_hw_s *hw) +{ + int err = 0; + + if (aq_hw_read_reg(hw, 0x10U) == ~0U) + return -ENXIO; + + return err; +} diff --git a/drivers/net/atlantic/atl_hw_regs.h b/drivers/net/atlantic/atl_hw_regs.h new file mode 100644 index 000000000..ca5a80ed2 --- /dev/null +++ b/drivers/net/atlantic/atl_hw_regs.h @@ -0,0 +1,59 @@ +/* + * 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 aq_hw_utils.h: Declaration of helper functions used across hardware + * layer. + */ + +#ifndef AQ_HW_UTILS_H +#define AQ_HW_UTILS_H + +#include +#include +#include +#include +#include +#include "atl_common.h" +#include "atl_types.h" + + +#ifndef HIDWORD +#define LODWORD(_qw) ((u32)(_qw)) +#define HIDWORD(_qw) ((u32)(((_qw) >> 32) & 0xffffffff)) +#endif + +#define AQ_HW_SLEEP(_US_) rte_delay_ms(_US_) + +#define mdelay rte_delay_ms +#define udelay rte_delay_us +#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) +#define BIT(x) (1UL << x) + +#define AQ_HW_WAIT_FOR(_B_, _US_, _N_) \ +do { \ + unsigned int AQ_HW_WAIT_FOR_i; \ + for (AQ_HW_WAIT_FOR_i = _N_; (!(_B_)) && (AQ_HW_WAIT_FOR_i);\ + --AQ_HW_WAIT_FOR_i) {\ + udelay(_US_); \ + } \ + if (!AQ_HW_WAIT_FOR_i) {\ + err = -ETIME; \ + } \ +} while (0) + +#define ATL_WRITE_FLUSH(aq_hw) { (void)aq_hw_read_reg(aq_hw, 0x10); } + +void aq_hw_write_reg_bit(struct aq_hw_s *aq_hw, u32 addr, u32 msk, + u32 shift, u32 val); +u32 aq_hw_read_reg_bit(struct aq_hw_s *aq_hw, u32 addr, u32 msk, u32 shift); +u32 aq_hw_read_reg(struct aq_hw_s *hw, u32 reg); +void aq_hw_write_reg(struct aq_hw_s *hw, u32 reg, u32 value); +int aq_hw_err_from_flags(struct aq_hw_s *hw); + +#endif /* AQ_HW_UTILS_H */