1fe56b9e6SYuval Mintz /* QLogic qed NIC Driver 2e8f1cb50SMintz, Yuval * Copyright (c) 2015-2017 QLogic Corporation 3fe56b9e6SYuval Mintz * 4e8f1cb50SMintz, Yuval * This software is available to you under a choice of one of two 5e8f1cb50SMintz, Yuval * licenses. You may choose to be licensed under the terms of the GNU 6e8f1cb50SMintz, Yuval * General Public License (GPL) Version 2, available from the file 7e8f1cb50SMintz, Yuval * COPYING in the main directory of this source tree, or the 8e8f1cb50SMintz, Yuval * OpenIB.org BSD license below: 9e8f1cb50SMintz, Yuval * 10e8f1cb50SMintz, Yuval * Redistribution and use in source and binary forms, with or 11e8f1cb50SMintz, Yuval * without modification, are permitted provided that the following 12e8f1cb50SMintz, Yuval * conditions are met: 13e8f1cb50SMintz, Yuval * 14e8f1cb50SMintz, Yuval * - Redistributions of source code must retain the above 15e8f1cb50SMintz, Yuval * copyright notice, this list of conditions and the following 16e8f1cb50SMintz, Yuval * disclaimer. 17e8f1cb50SMintz, Yuval * 18e8f1cb50SMintz, Yuval * - Redistributions in binary form must reproduce the above 19e8f1cb50SMintz, Yuval * copyright notice, this list of conditions and the following 20e8f1cb50SMintz, Yuval * disclaimer in the documentation and /or other materials 21e8f1cb50SMintz, Yuval * provided with the distribution. 22e8f1cb50SMintz, Yuval * 23e8f1cb50SMintz, Yuval * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24e8f1cb50SMintz, Yuval * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25e8f1cb50SMintz, Yuval * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26e8f1cb50SMintz, Yuval * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27e8f1cb50SMintz, Yuval * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28e8f1cb50SMintz, Yuval * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29e8f1cb50SMintz, Yuval * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30e8f1cb50SMintz, Yuval * SOFTWARE. 31fe56b9e6SYuval Mintz */ 32fe56b9e6SYuval Mintz 33fe56b9e6SYuval Mintz #include <linux/types.h> 34fe56b9e6SYuval Mintz #include <asm/byteorder.h> 35fe56b9e6SYuval Mintz #include <linux/io.h> 36fe56b9e6SYuval Mintz #include <linux/bitops.h> 37fe56b9e6SYuval Mintz #include <linux/delay.h> 38fe56b9e6SYuval Mintz #include <linux/dma-mapping.h> 39fe56b9e6SYuval Mintz #include <linux/errno.h> 40fe56b9e6SYuval Mintz #include <linux/interrupt.h> 41fe56b9e6SYuval Mintz #include <linux/kernel.h> 42fe56b9e6SYuval Mintz #include <linux/pci.h> 43fe56b9e6SYuval Mintz #include <linux/slab.h> 44fe56b9e6SYuval Mintz #include <linux/string.h> 45fe56b9e6SYuval Mintz #include "qed.h" 46fe56b9e6SYuval Mintz #include "qed_hsi.h" 47fe56b9e6SYuval Mintz #include "qed_hw.h" 48fe56b9e6SYuval Mintz #include "qed_init_ops.h" 49fe56b9e6SYuval Mintz #include "qed_int.h" 50fe56b9e6SYuval Mintz #include "qed_mcp.h" 51fe56b9e6SYuval Mintz #include "qed_reg_addr.h" 52fe56b9e6SYuval Mintz #include "qed_sp.h" 531408cc1fSYuval Mintz #include "qed_sriov.h" 541408cc1fSYuval Mintz #include "qed_vf.h" 55fe56b9e6SYuval Mintz 56fe56b9e6SYuval Mintz struct qed_pi_info { 57fe56b9e6SYuval Mintz qed_int_comp_cb_t comp_cb; 58fe56b9e6SYuval Mintz void *cookie; 59fe56b9e6SYuval Mintz }; 60fe56b9e6SYuval Mintz 61fe56b9e6SYuval Mintz struct qed_sb_sp_info { 62fe56b9e6SYuval Mintz struct qed_sb_info sb_info; 63fe56b9e6SYuval Mintz 64fe56b9e6SYuval Mintz /* per protocol index data */ 65fe56b9e6SYuval Mintz struct qed_pi_info pi_info_arr[PIS_PER_SB]; 66fe56b9e6SYuval Mintz }; 67fe56b9e6SYuval Mintz 68ff38577aSYuval Mintz enum qed_attention_type { 69ff38577aSYuval Mintz QED_ATTN_TYPE_ATTN, 70ff38577aSYuval Mintz QED_ATTN_TYPE_PARITY, 71ff38577aSYuval Mintz }; 72ff38577aSYuval Mintz 73cc875c2eSYuval Mintz #define SB_ATTN_ALIGNED_SIZE(p_hwfn) \ 74cc875c2eSYuval Mintz ALIGNED_TYPE_SIZE(struct atten_status_block, p_hwfn) 75cc875c2eSYuval Mintz 760d956e8aSYuval Mintz struct aeu_invert_reg_bit { 770d956e8aSYuval Mintz char bit_name[30]; 780d956e8aSYuval Mintz 790d956e8aSYuval Mintz #define ATTENTION_PARITY (1 << 0) 800d956e8aSYuval Mintz 810d956e8aSYuval Mintz #define ATTENTION_LENGTH_MASK (0x00000ff0) 820d956e8aSYuval Mintz #define ATTENTION_LENGTH_SHIFT (4) 830d956e8aSYuval Mintz #define ATTENTION_LENGTH(flags) (((flags) & ATTENTION_LENGTH_MASK) >> \ 840d956e8aSYuval Mintz ATTENTION_LENGTH_SHIFT) 850d956e8aSYuval Mintz #define ATTENTION_SINGLE (1 << ATTENTION_LENGTH_SHIFT) 860d956e8aSYuval Mintz #define ATTENTION_PAR (ATTENTION_SINGLE | ATTENTION_PARITY) 870d956e8aSYuval Mintz #define ATTENTION_PAR_INT ((2 << ATTENTION_LENGTH_SHIFT) | \ 880d956e8aSYuval Mintz ATTENTION_PARITY) 890d956e8aSYuval Mintz 900d956e8aSYuval Mintz /* Multiple bits start with this offset */ 910d956e8aSYuval Mintz #define ATTENTION_OFFSET_MASK (0x000ff000) 920d956e8aSYuval Mintz #define ATTENTION_OFFSET_SHIFT (12) 93ba36f718SMintz, Yuval 94ba36f718SMintz, Yuval #define ATTENTION_BB_MASK (0x00700000) 95ba36f718SMintz, Yuval #define ATTENTION_BB_SHIFT (20) 96ba36f718SMintz, Yuval #define ATTENTION_BB(value) (value << ATTENTION_BB_SHIFT) 97ba36f718SMintz, Yuval #define ATTENTION_BB_DIFFERENT BIT(23) 98ba36f718SMintz, Yuval 990d956e8aSYuval Mintz unsigned int flags; 100ff38577aSYuval Mintz 101b4149dc7SYuval Mintz /* Callback to call if attention will be triggered */ 102b4149dc7SYuval Mintz int (*cb)(struct qed_hwfn *p_hwfn); 103b4149dc7SYuval Mintz 104ff38577aSYuval Mintz enum block_id block_index; 1050d956e8aSYuval Mintz }; 1060d956e8aSYuval Mintz 1070d956e8aSYuval Mintz struct aeu_invert_reg { 1080d956e8aSYuval Mintz struct aeu_invert_reg_bit bits[32]; 1090d956e8aSYuval Mintz }; 1100d956e8aSYuval Mintz 1110d956e8aSYuval Mintz #define MAX_ATTN_GRPS (8) 1120d956e8aSYuval Mintz #define NUM_ATTN_REGS (9) 1130d956e8aSYuval Mintz 114b4149dc7SYuval Mintz /* Specific HW attention callbacks */ 115b4149dc7SYuval Mintz static int qed_mcp_attn_cb(struct qed_hwfn *p_hwfn) 116b4149dc7SYuval Mintz { 117b4149dc7SYuval Mintz u32 tmp = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, MCP_REG_CPU_STATE); 118b4149dc7SYuval Mintz 119b4149dc7SYuval Mintz /* This might occur on certain instances; Log it once then mask it */ 120b4149dc7SYuval Mintz DP_INFO(p_hwfn->cdev, "MCP_REG_CPU_STATE: %08x - Masking...\n", 121b4149dc7SYuval Mintz tmp); 122b4149dc7SYuval Mintz qed_wr(p_hwfn, p_hwfn->p_dpc_ptt, MCP_REG_CPU_EVENT_MASK, 123b4149dc7SYuval Mintz 0xffffffff); 124b4149dc7SYuval Mintz 125b4149dc7SYuval Mintz return 0; 126b4149dc7SYuval Mintz } 127b4149dc7SYuval Mintz 128b4149dc7SYuval Mintz #define QED_PSWHST_ATTENTION_INCORRECT_ACCESS (0x1) 129b4149dc7SYuval Mintz #define ATTENTION_INCORRECT_ACCESS_WR_MASK (0x1) 130b4149dc7SYuval Mintz #define ATTENTION_INCORRECT_ACCESS_WR_SHIFT (0) 131b4149dc7SYuval Mintz #define ATTENTION_INCORRECT_ACCESS_CLIENT_MASK (0xf) 132b4149dc7SYuval Mintz #define ATTENTION_INCORRECT_ACCESS_CLIENT_SHIFT (1) 133b4149dc7SYuval Mintz #define ATTENTION_INCORRECT_ACCESS_VF_VALID_MASK (0x1) 134b4149dc7SYuval Mintz #define ATTENTION_INCORRECT_ACCESS_VF_VALID_SHIFT (5) 135b4149dc7SYuval Mintz #define ATTENTION_INCORRECT_ACCESS_VF_ID_MASK (0xff) 136b4149dc7SYuval Mintz #define ATTENTION_INCORRECT_ACCESS_VF_ID_SHIFT (6) 137b4149dc7SYuval Mintz #define ATTENTION_INCORRECT_ACCESS_PF_ID_MASK (0xf) 138b4149dc7SYuval Mintz #define ATTENTION_INCORRECT_ACCESS_PF_ID_SHIFT (14) 139b4149dc7SYuval Mintz #define ATTENTION_INCORRECT_ACCESS_BYTE_EN_MASK (0xff) 140b4149dc7SYuval Mintz #define ATTENTION_INCORRECT_ACCESS_BYTE_EN_SHIFT (18) 141b4149dc7SYuval Mintz static int qed_pswhst_attn_cb(struct qed_hwfn *p_hwfn) 142b4149dc7SYuval Mintz { 143b4149dc7SYuval Mintz u32 tmp = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 144b4149dc7SYuval Mintz PSWHST_REG_INCORRECT_ACCESS_VALID); 145b4149dc7SYuval Mintz 146b4149dc7SYuval Mintz if (tmp & QED_PSWHST_ATTENTION_INCORRECT_ACCESS) { 147b4149dc7SYuval Mintz u32 addr, data, length; 148b4149dc7SYuval Mintz 149b4149dc7SYuval Mintz addr = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 150b4149dc7SYuval Mintz PSWHST_REG_INCORRECT_ACCESS_ADDRESS); 151b4149dc7SYuval Mintz data = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 152b4149dc7SYuval Mintz PSWHST_REG_INCORRECT_ACCESS_DATA); 153b4149dc7SYuval Mintz length = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 154b4149dc7SYuval Mintz PSWHST_REG_INCORRECT_ACCESS_LENGTH); 155b4149dc7SYuval Mintz 156b4149dc7SYuval Mintz DP_INFO(p_hwfn->cdev, 157b4149dc7SYuval Mintz "Incorrect access to %08x of length %08x - PF [%02x] VF [%04x] [valid %02x] client [%02x] write [%02x] Byte-Enable [%04x] [%08x]\n", 158b4149dc7SYuval Mintz addr, length, 159b4149dc7SYuval Mintz (u8) GET_FIELD(data, ATTENTION_INCORRECT_ACCESS_PF_ID), 160b4149dc7SYuval Mintz (u8) GET_FIELD(data, ATTENTION_INCORRECT_ACCESS_VF_ID), 161b4149dc7SYuval Mintz (u8) GET_FIELD(data, 162b4149dc7SYuval Mintz ATTENTION_INCORRECT_ACCESS_VF_VALID), 163b4149dc7SYuval Mintz (u8) GET_FIELD(data, 164b4149dc7SYuval Mintz ATTENTION_INCORRECT_ACCESS_CLIENT), 165b4149dc7SYuval Mintz (u8) GET_FIELD(data, ATTENTION_INCORRECT_ACCESS_WR), 166b4149dc7SYuval Mintz (u8) GET_FIELD(data, 167b4149dc7SYuval Mintz ATTENTION_INCORRECT_ACCESS_BYTE_EN), 168b4149dc7SYuval Mintz data); 169b4149dc7SYuval Mintz } 170b4149dc7SYuval Mintz 171b4149dc7SYuval Mintz return 0; 172b4149dc7SYuval Mintz } 173b4149dc7SYuval Mintz 174b4149dc7SYuval Mintz #define QED_GRC_ATTENTION_VALID_BIT (1 << 0) 175b4149dc7SYuval Mintz #define QED_GRC_ATTENTION_ADDRESS_MASK (0x7fffff) 176b4149dc7SYuval Mintz #define QED_GRC_ATTENTION_ADDRESS_SHIFT (0) 177b4149dc7SYuval Mintz #define QED_GRC_ATTENTION_RDWR_BIT (1 << 23) 178b4149dc7SYuval Mintz #define QED_GRC_ATTENTION_MASTER_MASK (0xf) 179b4149dc7SYuval Mintz #define QED_GRC_ATTENTION_MASTER_SHIFT (24) 180b4149dc7SYuval Mintz #define QED_GRC_ATTENTION_PF_MASK (0xf) 181b4149dc7SYuval Mintz #define QED_GRC_ATTENTION_PF_SHIFT (0) 182b4149dc7SYuval Mintz #define QED_GRC_ATTENTION_VF_MASK (0xff) 183b4149dc7SYuval Mintz #define QED_GRC_ATTENTION_VF_SHIFT (4) 184b4149dc7SYuval Mintz #define QED_GRC_ATTENTION_PRIV_MASK (0x3) 185b4149dc7SYuval Mintz #define QED_GRC_ATTENTION_PRIV_SHIFT (14) 186b4149dc7SYuval Mintz #define QED_GRC_ATTENTION_PRIV_VF (0) 187b4149dc7SYuval Mintz static const char *attn_master_to_str(u8 master) 188b4149dc7SYuval Mintz { 189b4149dc7SYuval Mintz switch (master) { 190b4149dc7SYuval Mintz case 1: return "PXP"; 191b4149dc7SYuval Mintz case 2: return "MCP"; 192b4149dc7SYuval Mintz case 3: return "MSDM"; 193b4149dc7SYuval Mintz case 4: return "PSDM"; 194b4149dc7SYuval Mintz case 5: return "YSDM"; 195b4149dc7SYuval Mintz case 6: return "USDM"; 196b4149dc7SYuval Mintz case 7: return "TSDM"; 197b4149dc7SYuval Mintz case 8: return "XSDM"; 198b4149dc7SYuval Mintz case 9: return "DBU"; 199b4149dc7SYuval Mintz case 10: return "DMAE"; 200b4149dc7SYuval Mintz default: 2019165dabbSMasanari Iida return "Unknown"; 202b4149dc7SYuval Mintz } 203b4149dc7SYuval Mintz } 204b4149dc7SYuval Mintz 205b4149dc7SYuval Mintz static int qed_grc_attn_cb(struct qed_hwfn *p_hwfn) 206b4149dc7SYuval Mintz { 207b4149dc7SYuval Mintz u32 tmp, tmp2; 208b4149dc7SYuval Mintz 209b4149dc7SYuval Mintz /* We've already cleared the timeout interrupt register, so we learn 210b4149dc7SYuval Mintz * of interrupts via the validity register 211b4149dc7SYuval Mintz */ 212b4149dc7SYuval Mintz tmp = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 213b4149dc7SYuval Mintz GRC_REG_TIMEOUT_ATTN_ACCESS_VALID); 214b4149dc7SYuval Mintz if (!(tmp & QED_GRC_ATTENTION_VALID_BIT)) 215b4149dc7SYuval Mintz goto out; 216b4149dc7SYuval Mintz 217b4149dc7SYuval Mintz /* Read the GRC timeout information */ 218b4149dc7SYuval Mintz tmp = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 219b4149dc7SYuval Mintz GRC_REG_TIMEOUT_ATTN_ACCESS_DATA_0); 220b4149dc7SYuval Mintz tmp2 = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 221b4149dc7SYuval Mintz GRC_REG_TIMEOUT_ATTN_ACCESS_DATA_1); 222b4149dc7SYuval Mintz 223b4149dc7SYuval Mintz DP_INFO(p_hwfn->cdev, 224b4149dc7SYuval Mintz "GRC timeout [%08x:%08x] - %s Address [%08x] [Master %s] [PF: %02x %s %02x]\n", 225b4149dc7SYuval Mintz tmp2, tmp, 226b4149dc7SYuval Mintz (tmp & QED_GRC_ATTENTION_RDWR_BIT) ? "Write to" : "Read from", 227b4149dc7SYuval Mintz GET_FIELD(tmp, QED_GRC_ATTENTION_ADDRESS) << 2, 228b4149dc7SYuval Mintz attn_master_to_str(GET_FIELD(tmp, QED_GRC_ATTENTION_MASTER)), 229b4149dc7SYuval Mintz GET_FIELD(tmp2, QED_GRC_ATTENTION_PF), 230b4149dc7SYuval Mintz (GET_FIELD(tmp2, QED_GRC_ATTENTION_PRIV) == 231b4149dc7SYuval Mintz QED_GRC_ATTENTION_PRIV_VF) ? "VF" : "(Ireelevant)", 232b4149dc7SYuval Mintz GET_FIELD(tmp2, QED_GRC_ATTENTION_VF)); 233b4149dc7SYuval Mintz 234b4149dc7SYuval Mintz out: 235b4149dc7SYuval Mintz /* Regardles of anything else, clean the validity bit */ 236b4149dc7SYuval Mintz qed_wr(p_hwfn, p_hwfn->p_dpc_ptt, 237b4149dc7SYuval Mintz GRC_REG_TIMEOUT_ATTN_ACCESS_VALID, 0); 238b4149dc7SYuval Mintz return 0; 239b4149dc7SYuval Mintz } 240b4149dc7SYuval Mintz 241b4149dc7SYuval Mintz #define PGLUE_ATTENTION_VALID (1 << 29) 242b4149dc7SYuval Mintz #define PGLUE_ATTENTION_RD_VALID (1 << 26) 243b4149dc7SYuval Mintz #define PGLUE_ATTENTION_DETAILS_PFID_MASK (0xf) 244b4149dc7SYuval Mintz #define PGLUE_ATTENTION_DETAILS_PFID_SHIFT (20) 245b4149dc7SYuval Mintz #define PGLUE_ATTENTION_DETAILS_VF_VALID_MASK (0x1) 246b4149dc7SYuval Mintz #define PGLUE_ATTENTION_DETAILS_VF_VALID_SHIFT (19) 247b4149dc7SYuval Mintz #define PGLUE_ATTENTION_DETAILS_VFID_MASK (0xff) 248b4149dc7SYuval Mintz #define PGLUE_ATTENTION_DETAILS_VFID_SHIFT (24) 249b4149dc7SYuval Mintz #define PGLUE_ATTENTION_DETAILS2_WAS_ERR_MASK (0x1) 250b4149dc7SYuval Mintz #define PGLUE_ATTENTION_DETAILS2_WAS_ERR_SHIFT (21) 251b4149dc7SYuval Mintz #define PGLUE_ATTENTION_DETAILS2_BME_MASK (0x1) 252b4149dc7SYuval Mintz #define PGLUE_ATTENTION_DETAILS2_BME_SHIFT (22) 253b4149dc7SYuval Mintz #define PGLUE_ATTENTION_DETAILS2_FID_EN_MASK (0x1) 254b4149dc7SYuval Mintz #define PGLUE_ATTENTION_DETAILS2_FID_EN_SHIFT (23) 255b4149dc7SYuval Mintz #define PGLUE_ATTENTION_ICPL_VALID (1 << 23) 256b4149dc7SYuval Mintz #define PGLUE_ATTENTION_ZLR_VALID (1 << 25) 257b4149dc7SYuval Mintz #define PGLUE_ATTENTION_ILT_VALID (1 << 23) 258b4149dc7SYuval Mintz static int qed_pglub_rbc_attn_cb(struct qed_hwfn *p_hwfn) 259b4149dc7SYuval Mintz { 260b4149dc7SYuval Mintz u32 tmp; 261b4149dc7SYuval Mintz 262b4149dc7SYuval Mintz tmp = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 263b4149dc7SYuval Mintz PGLUE_B_REG_TX_ERR_WR_DETAILS2); 264b4149dc7SYuval Mintz if (tmp & PGLUE_ATTENTION_VALID) { 265b4149dc7SYuval Mintz u32 addr_lo, addr_hi, details; 266b4149dc7SYuval Mintz 267b4149dc7SYuval Mintz addr_lo = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 268b4149dc7SYuval Mintz PGLUE_B_REG_TX_ERR_WR_ADD_31_0); 269b4149dc7SYuval Mintz addr_hi = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 270b4149dc7SYuval Mintz PGLUE_B_REG_TX_ERR_WR_ADD_63_32); 271b4149dc7SYuval Mintz details = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 272b4149dc7SYuval Mintz PGLUE_B_REG_TX_ERR_WR_DETAILS); 273b4149dc7SYuval Mintz 274b4149dc7SYuval Mintz DP_INFO(p_hwfn, 275b4149dc7SYuval Mintz "Illegal write by chip to [%08x:%08x] blocked.\n" 276b4149dc7SYuval Mintz "Details: %08x [PFID %02x, VFID %02x, VF_VALID %02x]\n" 277b4149dc7SYuval Mintz "Details2 %08x [Was_error %02x BME deassert %02x FID_enable deassert %02x]\n", 278b4149dc7SYuval Mintz addr_hi, addr_lo, details, 279b4149dc7SYuval Mintz (u8)GET_FIELD(details, PGLUE_ATTENTION_DETAILS_PFID), 280b4149dc7SYuval Mintz (u8)GET_FIELD(details, PGLUE_ATTENTION_DETAILS_VFID), 281b4149dc7SYuval Mintz GET_FIELD(details, 282b4149dc7SYuval Mintz PGLUE_ATTENTION_DETAILS_VF_VALID) ? 1 : 0, 283b4149dc7SYuval Mintz tmp, 284b4149dc7SYuval Mintz GET_FIELD(tmp, 285b4149dc7SYuval Mintz PGLUE_ATTENTION_DETAILS2_WAS_ERR) ? 1 : 0, 286b4149dc7SYuval Mintz GET_FIELD(tmp, 287b4149dc7SYuval Mintz PGLUE_ATTENTION_DETAILS2_BME) ? 1 : 0, 288b4149dc7SYuval Mintz GET_FIELD(tmp, 289b4149dc7SYuval Mintz PGLUE_ATTENTION_DETAILS2_FID_EN) ? 1 : 0); 290b4149dc7SYuval Mintz } 291b4149dc7SYuval Mintz 292b4149dc7SYuval Mintz tmp = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 293b4149dc7SYuval Mintz PGLUE_B_REG_TX_ERR_RD_DETAILS2); 294b4149dc7SYuval Mintz if (tmp & PGLUE_ATTENTION_RD_VALID) { 295b4149dc7SYuval Mintz u32 addr_lo, addr_hi, details; 296b4149dc7SYuval Mintz 297b4149dc7SYuval Mintz addr_lo = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 298b4149dc7SYuval Mintz PGLUE_B_REG_TX_ERR_RD_ADD_31_0); 299b4149dc7SYuval Mintz addr_hi = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 300b4149dc7SYuval Mintz PGLUE_B_REG_TX_ERR_RD_ADD_63_32); 301b4149dc7SYuval Mintz details = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 302b4149dc7SYuval Mintz PGLUE_B_REG_TX_ERR_RD_DETAILS); 303b4149dc7SYuval Mintz 304b4149dc7SYuval Mintz DP_INFO(p_hwfn, 305b4149dc7SYuval Mintz "Illegal read by chip from [%08x:%08x] blocked.\n" 306b4149dc7SYuval Mintz " Details: %08x [PFID %02x, VFID %02x, VF_VALID %02x]\n" 307b4149dc7SYuval Mintz " Details2 %08x [Was_error %02x BME deassert %02x FID_enable deassert %02x]\n", 308b4149dc7SYuval Mintz addr_hi, addr_lo, details, 309b4149dc7SYuval Mintz (u8)GET_FIELD(details, PGLUE_ATTENTION_DETAILS_PFID), 310b4149dc7SYuval Mintz (u8)GET_FIELD(details, PGLUE_ATTENTION_DETAILS_VFID), 311b4149dc7SYuval Mintz GET_FIELD(details, 312b4149dc7SYuval Mintz PGLUE_ATTENTION_DETAILS_VF_VALID) ? 1 : 0, 313b4149dc7SYuval Mintz tmp, 314b4149dc7SYuval Mintz GET_FIELD(tmp, PGLUE_ATTENTION_DETAILS2_WAS_ERR) ? 1 315b4149dc7SYuval Mintz : 0, 316b4149dc7SYuval Mintz GET_FIELD(tmp, PGLUE_ATTENTION_DETAILS2_BME) ? 1 : 0, 317b4149dc7SYuval Mintz GET_FIELD(tmp, PGLUE_ATTENTION_DETAILS2_FID_EN) ? 1 318b4149dc7SYuval Mintz : 0); 319b4149dc7SYuval Mintz } 320b4149dc7SYuval Mintz 321b4149dc7SYuval Mintz tmp = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 322b4149dc7SYuval Mintz PGLUE_B_REG_TX_ERR_WR_DETAILS_ICPL); 323b4149dc7SYuval Mintz if (tmp & PGLUE_ATTENTION_ICPL_VALID) 324b4149dc7SYuval Mintz DP_INFO(p_hwfn, "ICPL eror - %08x\n", tmp); 325b4149dc7SYuval Mintz 326b4149dc7SYuval Mintz tmp = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 327b4149dc7SYuval Mintz PGLUE_B_REG_MASTER_ZLR_ERR_DETAILS); 328b4149dc7SYuval Mintz if (tmp & PGLUE_ATTENTION_ZLR_VALID) { 329b4149dc7SYuval Mintz u32 addr_hi, addr_lo; 330b4149dc7SYuval Mintz 331b4149dc7SYuval Mintz addr_lo = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 332b4149dc7SYuval Mintz PGLUE_B_REG_MASTER_ZLR_ERR_ADD_31_0); 333b4149dc7SYuval Mintz addr_hi = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 334b4149dc7SYuval Mintz PGLUE_B_REG_MASTER_ZLR_ERR_ADD_63_32); 335b4149dc7SYuval Mintz 336b4149dc7SYuval Mintz DP_INFO(p_hwfn, "ZLR eror - %08x [Address %08x:%08x]\n", 337b4149dc7SYuval Mintz tmp, addr_hi, addr_lo); 338b4149dc7SYuval Mintz } 339b4149dc7SYuval Mintz 340b4149dc7SYuval Mintz tmp = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 341b4149dc7SYuval Mintz PGLUE_B_REG_VF_ILT_ERR_DETAILS2); 342b4149dc7SYuval Mintz if (tmp & PGLUE_ATTENTION_ILT_VALID) { 343b4149dc7SYuval Mintz u32 addr_hi, addr_lo, details; 344b4149dc7SYuval Mintz 345b4149dc7SYuval Mintz addr_lo = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 346b4149dc7SYuval Mintz PGLUE_B_REG_VF_ILT_ERR_ADD_31_0); 347b4149dc7SYuval Mintz addr_hi = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 348b4149dc7SYuval Mintz PGLUE_B_REG_VF_ILT_ERR_ADD_63_32); 349b4149dc7SYuval Mintz details = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 350b4149dc7SYuval Mintz PGLUE_B_REG_VF_ILT_ERR_DETAILS); 351b4149dc7SYuval Mintz 352b4149dc7SYuval Mintz DP_INFO(p_hwfn, 353b4149dc7SYuval Mintz "ILT error - Details %08x Details2 %08x [Address %08x:%08x]\n", 354b4149dc7SYuval Mintz details, tmp, addr_hi, addr_lo); 355b4149dc7SYuval Mintz } 356b4149dc7SYuval Mintz 357b4149dc7SYuval Mintz /* Clear the indications */ 358b4149dc7SYuval Mintz qed_wr(p_hwfn, p_hwfn->p_dpc_ptt, 359b4149dc7SYuval Mintz PGLUE_B_REG_LATCHED_ERRORS_CLR, (1 << 2)); 360b4149dc7SYuval Mintz 361b4149dc7SYuval Mintz return 0; 362b4149dc7SYuval Mintz } 363b4149dc7SYuval Mintz 364b4149dc7SYuval Mintz #define QED_DORQ_ATTENTION_REASON_MASK (0xfffff) 365b4149dc7SYuval Mintz #define QED_DORQ_ATTENTION_OPAQUE_MASK (0xffff) 366b4149dc7SYuval Mintz #define QED_DORQ_ATTENTION_SIZE_MASK (0x7f) 367b4149dc7SYuval Mintz #define QED_DORQ_ATTENTION_SIZE_SHIFT (16) 368b4149dc7SYuval Mintz static int qed_dorq_attn_cb(struct qed_hwfn *p_hwfn) 369b4149dc7SYuval Mintz { 370b4149dc7SYuval Mintz u32 reason; 371b4149dc7SYuval Mintz 372b4149dc7SYuval Mintz reason = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, DORQ_REG_DB_DROP_REASON) & 373b4149dc7SYuval Mintz QED_DORQ_ATTENTION_REASON_MASK; 374b4149dc7SYuval Mintz if (reason) { 375b4149dc7SYuval Mintz u32 details = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 376b4149dc7SYuval Mintz DORQ_REG_DB_DROP_DETAILS); 377b4149dc7SYuval Mintz 378b4149dc7SYuval Mintz DP_INFO(p_hwfn->cdev, 3799165dabbSMasanari Iida "DORQ db_drop: address 0x%08x Opaque FID 0x%04x Size [bytes] 0x%08x Reason: 0x%08x\n", 380b4149dc7SYuval Mintz qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 381b4149dc7SYuval Mintz DORQ_REG_DB_DROP_DETAILS_ADDRESS), 382b4149dc7SYuval Mintz (u16)(details & QED_DORQ_ATTENTION_OPAQUE_MASK), 383b4149dc7SYuval Mintz GET_FIELD(details, QED_DORQ_ATTENTION_SIZE) * 4, 384b4149dc7SYuval Mintz reason); 385b4149dc7SYuval Mintz } 386b4149dc7SYuval Mintz 387b4149dc7SYuval Mintz return -EINVAL; 388b4149dc7SYuval Mintz } 389b4149dc7SYuval Mintz 390ba36f718SMintz, Yuval /* Instead of major changes to the data-structure, we have a some 'special' 391ba36f718SMintz, Yuval * identifiers for sources that changed meaning between adapters. 392ba36f718SMintz, Yuval */ 393ba36f718SMintz, Yuval enum aeu_invert_reg_special_type { 394ba36f718SMintz, Yuval AEU_INVERT_REG_SPECIAL_CNIG_0, 395ba36f718SMintz, Yuval AEU_INVERT_REG_SPECIAL_CNIG_1, 396ba36f718SMintz, Yuval AEU_INVERT_REG_SPECIAL_CNIG_2, 397ba36f718SMintz, Yuval AEU_INVERT_REG_SPECIAL_CNIG_3, 398ba36f718SMintz, Yuval AEU_INVERT_REG_SPECIAL_MAX, 399ba36f718SMintz, Yuval }; 400ba36f718SMintz, Yuval 401ba36f718SMintz, Yuval static struct aeu_invert_reg_bit 402ba36f718SMintz, Yuval aeu_descs_special[AEU_INVERT_REG_SPECIAL_MAX] = { 403ba36f718SMintz, Yuval {"CNIG port 0", ATTENTION_SINGLE, NULL, BLOCK_CNIG}, 404ba36f718SMintz, Yuval {"CNIG port 1", ATTENTION_SINGLE, NULL, BLOCK_CNIG}, 405ba36f718SMintz, Yuval {"CNIG port 2", ATTENTION_SINGLE, NULL, BLOCK_CNIG}, 406ba36f718SMintz, Yuval {"CNIG port 3", ATTENTION_SINGLE, NULL, BLOCK_CNIG}, 407ba36f718SMintz, Yuval }; 408ba36f718SMintz, Yuval 4090d956e8aSYuval Mintz /* Notice aeu_invert_reg must be defined in the same order of bits as HW; */ 4100d956e8aSYuval Mintz static struct aeu_invert_reg aeu_descs[NUM_ATTN_REGS] = { 4110d956e8aSYuval Mintz { 4120d956e8aSYuval Mintz { /* After Invert 1 */ 4130d956e8aSYuval Mintz {"GPIO0 function%d", 414b4149dc7SYuval Mintz (32 << ATTENTION_LENGTH_SHIFT), NULL, MAX_BLOCK_ID}, 4150d956e8aSYuval Mintz } 4160d956e8aSYuval Mintz }, 4170d956e8aSYuval Mintz 4180d956e8aSYuval Mintz { 4190d956e8aSYuval Mintz { /* After Invert 2 */ 420b4149dc7SYuval Mintz {"PGLUE config_space", ATTENTION_SINGLE, 421b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 422b4149dc7SYuval Mintz {"PGLUE misc_flr", ATTENTION_SINGLE, 423b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 424b4149dc7SYuval Mintz {"PGLUE B RBC", ATTENTION_PAR_INT, 425b4149dc7SYuval Mintz qed_pglub_rbc_attn_cb, BLOCK_PGLUE_B}, 426b4149dc7SYuval Mintz {"PGLUE misc_mctp", ATTENTION_SINGLE, 427b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 428b4149dc7SYuval Mintz {"Flash event", ATTENTION_SINGLE, NULL, MAX_BLOCK_ID}, 429b4149dc7SYuval Mintz {"SMB event", ATTENTION_SINGLE, NULL, MAX_BLOCK_ID}, 430b4149dc7SYuval Mintz {"Main Power", ATTENTION_SINGLE, NULL, MAX_BLOCK_ID}, 4310d956e8aSYuval Mintz {"SW timers #%d", (8 << ATTENTION_LENGTH_SHIFT) | 432ff38577aSYuval Mintz (1 << ATTENTION_OFFSET_SHIFT), 433b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 4340d956e8aSYuval Mintz {"PCIE glue/PXP VPD %d", 435b4149dc7SYuval Mintz (16 << ATTENTION_LENGTH_SHIFT), NULL, BLOCK_PGLCS}, 4360d956e8aSYuval Mintz } 4370d956e8aSYuval Mintz }, 4380d956e8aSYuval Mintz 4390d956e8aSYuval Mintz { 4400d956e8aSYuval Mintz { /* After Invert 3 */ 4410d956e8aSYuval Mintz {"General Attention %d", 442b4149dc7SYuval Mintz (32 << ATTENTION_LENGTH_SHIFT), NULL, MAX_BLOCK_ID}, 4430d956e8aSYuval Mintz } 4440d956e8aSYuval Mintz }, 4450d956e8aSYuval Mintz 4460d956e8aSYuval Mintz { 4470d956e8aSYuval Mintz { /* After Invert 4 */ 448ff38577aSYuval Mintz {"General Attention 32", ATTENTION_SINGLE, 449b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 4500d956e8aSYuval Mintz {"General Attention %d", 4510d956e8aSYuval Mintz (2 << ATTENTION_LENGTH_SHIFT) | 452b4149dc7SYuval Mintz (33 << ATTENTION_OFFSET_SHIFT), NULL, MAX_BLOCK_ID}, 453ff38577aSYuval Mintz {"General Attention 35", ATTENTION_SINGLE, 454b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 455ba36f718SMintz, Yuval {"NWS Parity", 456ba36f718SMintz, Yuval ATTENTION_PAR | ATTENTION_BB_DIFFERENT | 457ba36f718SMintz, Yuval ATTENTION_BB(AEU_INVERT_REG_SPECIAL_CNIG_0), 458ba36f718SMintz, Yuval NULL, BLOCK_NWS}, 459ba36f718SMintz, Yuval {"NWS Interrupt", 460ba36f718SMintz, Yuval ATTENTION_SINGLE | ATTENTION_BB_DIFFERENT | 461ba36f718SMintz, Yuval ATTENTION_BB(AEU_INVERT_REG_SPECIAL_CNIG_1), 462ba36f718SMintz, Yuval NULL, BLOCK_NWS}, 463ba36f718SMintz, Yuval {"NWM Parity", 464ba36f718SMintz, Yuval ATTENTION_PAR | ATTENTION_BB_DIFFERENT | 465ba36f718SMintz, Yuval ATTENTION_BB(AEU_INVERT_REG_SPECIAL_CNIG_2), 466ba36f718SMintz, Yuval NULL, BLOCK_NWM}, 467ba36f718SMintz, Yuval {"NWM Interrupt", 468ba36f718SMintz, Yuval ATTENTION_SINGLE | ATTENTION_BB_DIFFERENT | 469ba36f718SMintz, Yuval ATTENTION_BB(AEU_INVERT_REG_SPECIAL_CNIG_3), 470ba36f718SMintz, Yuval NULL, BLOCK_NWM}, 471b4149dc7SYuval Mintz {"MCP CPU", ATTENTION_SINGLE, 472b4149dc7SYuval Mintz qed_mcp_attn_cb, MAX_BLOCK_ID}, 473b4149dc7SYuval Mintz {"MCP Watchdog timer", ATTENTION_SINGLE, 474b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 475b4149dc7SYuval Mintz {"MCP M2P", ATTENTION_SINGLE, NULL, MAX_BLOCK_ID}, 476ff38577aSYuval Mintz {"AVS stop status ready", ATTENTION_SINGLE, 477b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 478b4149dc7SYuval Mintz {"MSTAT", ATTENTION_PAR_INT, NULL, MAX_BLOCK_ID}, 479b4149dc7SYuval Mintz {"MSTAT per-path", ATTENTION_PAR_INT, 480b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 481ff38577aSYuval Mintz {"Reserved %d", (6 << ATTENTION_LENGTH_SHIFT), 482b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 483b4149dc7SYuval Mintz {"NIG", ATTENTION_PAR_INT, NULL, BLOCK_NIG}, 484b4149dc7SYuval Mintz {"BMB/OPTE/MCP", ATTENTION_PAR_INT, NULL, BLOCK_BMB}, 485b4149dc7SYuval Mintz {"BTB", ATTENTION_PAR_INT, NULL, BLOCK_BTB}, 486b4149dc7SYuval Mintz {"BRB", ATTENTION_PAR_INT, NULL, BLOCK_BRB}, 487b4149dc7SYuval Mintz {"PRS", ATTENTION_PAR_INT, NULL, BLOCK_PRS}, 4880d956e8aSYuval Mintz } 4890d956e8aSYuval Mintz }, 4900d956e8aSYuval Mintz 4910d956e8aSYuval Mintz { 4920d956e8aSYuval Mintz { /* After Invert 5 */ 493b4149dc7SYuval Mintz {"SRC", ATTENTION_PAR_INT, NULL, BLOCK_SRC}, 494b4149dc7SYuval Mintz {"PB Client1", ATTENTION_PAR_INT, NULL, BLOCK_PBF_PB1}, 495b4149dc7SYuval Mintz {"PB Client2", ATTENTION_PAR_INT, NULL, BLOCK_PBF_PB2}, 496b4149dc7SYuval Mintz {"RPB", ATTENTION_PAR_INT, NULL, BLOCK_RPB}, 497b4149dc7SYuval Mintz {"PBF", ATTENTION_PAR_INT, NULL, BLOCK_PBF}, 498b4149dc7SYuval Mintz {"QM", ATTENTION_PAR_INT, NULL, BLOCK_QM}, 499b4149dc7SYuval Mintz {"TM", ATTENTION_PAR_INT, NULL, BLOCK_TM}, 500b4149dc7SYuval Mintz {"MCM", ATTENTION_PAR_INT, NULL, BLOCK_MCM}, 501b4149dc7SYuval Mintz {"MSDM", ATTENTION_PAR_INT, NULL, BLOCK_MSDM}, 502b4149dc7SYuval Mintz {"MSEM", ATTENTION_PAR_INT, NULL, BLOCK_MSEM}, 503b4149dc7SYuval Mintz {"PCM", ATTENTION_PAR_INT, NULL, BLOCK_PCM}, 504b4149dc7SYuval Mintz {"PSDM", ATTENTION_PAR_INT, NULL, BLOCK_PSDM}, 505b4149dc7SYuval Mintz {"PSEM", ATTENTION_PAR_INT, NULL, BLOCK_PSEM}, 506b4149dc7SYuval Mintz {"TCM", ATTENTION_PAR_INT, NULL, BLOCK_TCM}, 507b4149dc7SYuval Mintz {"TSDM", ATTENTION_PAR_INT, NULL, BLOCK_TSDM}, 508b4149dc7SYuval Mintz {"TSEM", ATTENTION_PAR_INT, NULL, BLOCK_TSEM}, 5090d956e8aSYuval Mintz } 5100d956e8aSYuval Mintz }, 5110d956e8aSYuval Mintz 5120d956e8aSYuval Mintz { 5130d956e8aSYuval Mintz { /* After Invert 6 */ 514b4149dc7SYuval Mintz {"UCM", ATTENTION_PAR_INT, NULL, BLOCK_UCM}, 515b4149dc7SYuval Mintz {"USDM", ATTENTION_PAR_INT, NULL, BLOCK_USDM}, 516b4149dc7SYuval Mintz {"USEM", ATTENTION_PAR_INT, NULL, BLOCK_USEM}, 517b4149dc7SYuval Mintz {"XCM", ATTENTION_PAR_INT, NULL, BLOCK_XCM}, 518b4149dc7SYuval Mintz {"XSDM", ATTENTION_PAR_INT, NULL, BLOCK_XSDM}, 519b4149dc7SYuval Mintz {"XSEM", ATTENTION_PAR_INT, NULL, BLOCK_XSEM}, 520b4149dc7SYuval Mintz {"YCM", ATTENTION_PAR_INT, NULL, BLOCK_YCM}, 521b4149dc7SYuval Mintz {"YSDM", ATTENTION_PAR_INT, NULL, BLOCK_YSDM}, 522b4149dc7SYuval Mintz {"YSEM", ATTENTION_PAR_INT, NULL, BLOCK_YSEM}, 523b4149dc7SYuval Mintz {"XYLD", ATTENTION_PAR_INT, NULL, BLOCK_XYLD}, 524b4149dc7SYuval Mintz {"TMLD", ATTENTION_PAR_INT, NULL, BLOCK_TMLD}, 525b4149dc7SYuval Mintz {"MYLD", ATTENTION_PAR_INT, NULL, BLOCK_MULD}, 526b4149dc7SYuval Mintz {"YULD", ATTENTION_PAR_INT, NULL, BLOCK_YULD}, 527b4149dc7SYuval Mintz {"DORQ", ATTENTION_PAR_INT, 528b4149dc7SYuval Mintz qed_dorq_attn_cb, BLOCK_DORQ}, 529b4149dc7SYuval Mintz {"DBG", ATTENTION_PAR_INT, NULL, BLOCK_DBG}, 530b4149dc7SYuval Mintz {"IPC", ATTENTION_PAR_INT, NULL, BLOCK_IPC}, 5310d956e8aSYuval Mintz } 5320d956e8aSYuval Mintz }, 5330d956e8aSYuval Mintz 5340d956e8aSYuval Mintz { 5350d956e8aSYuval Mintz { /* After Invert 7 */ 536b4149dc7SYuval Mintz {"CCFC", ATTENTION_PAR_INT, NULL, BLOCK_CCFC}, 537b4149dc7SYuval Mintz {"CDU", ATTENTION_PAR_INT, NULL, BLOCK_CDU}, 538b4149dc7SYuval Mintz {"DMAE", ATTENTION_PAR_INT, NULL, BLOCK_DMAE}, 539b4149dc7SYuval Mintz {"IGU", ATTENTION_PAR_INT, NULL, BLOCK_IGU}, 540b4149dc7SYuval Mintz {"ATC", ATTENTION_PAR_INT, NULL, MAX_BLOCK_ID}, 541b4149dc7SYuval Mintz {"CAU", ATTENTION_PAR_INT, NULL, BLOCK_CAU}, 542b4149dc7SYuval Mintz {"PTU", ATTENTION_PAR_INT, NULL, BLOCK_PTU}, 543b4149dc7SYuval Mintz {"PRM", ATTENTION_PAR_INT, NULL, BLOCK_PRM}, 544b4149dc7SYuval Mintz {"TCFC", ATTENTION_PAR_INT, NULL, BLOCK_TCFC}, 545b4149dc7SYuval Mintz {"RDIF", ATTENTION_PAR_INT, NULL, BLOCK_RDIF}, 546b4149dc7SYuval Mintz {"TDIF", ATTENTION_PAR_INT, NULL, BLOCK_TDIF}, 547b4149dc7SYuval Mintz {"RSS", ATTENTION_PAR_INT, NULL, BLOCK_RSS}, 548b4149dc7SYuval Mintz {"MISC", ATTENTION_PAR_INT, NULL, BLOCK_MISC}, 549b4149dc7SYuval Mintz {"MISCS", ATTENTION_PAR_INT, NULL, BLOCK_MISCS}, 550b4149dc7SYuval Mintz {"PCIE", ATTENTION_PAR, NULL, BLOCK_PCIE}, 551b4149dc7SYuval Mintz {"Vaux PCI core", ATTENTION_SINGLE, NULL, BLOCK_PGLCS}, 552b4149dc7SYuval Mintz {"PSWRQ", ATTENTION_PAR_INT, NULL, BLOCK_PSWRQ}, 5530d956e8aSYuval Mintz } 5540d956e8aSYuval Mintz }, 5550d956e8aSYuval Mintz 5560d956e8aSYuval Mintz { 5570d956e8aSYuval Mintz { /* After Invert 8 */ 558b4149dc7SYuval Mintz {"PSWRQ (pci_clk)", ATTENTION_PAR_INT, 559b4149dc7SYuval Mintz NULL, BLOCK_PSWRQ2}, 560b4149dc7SYuval Mintz {"PSWWR", ATTENTION_PAR_INT, NULL, BLOCK_PSWWR}, 561b4149dc7SYuval Mintz {"PSWWR (pci_clk)", ATTENTION_PAR_INT, 562b4149dc7SYuval Mintz NULL, BLOCK_PSWWR2}, 563b4149dc7SYuval Mintz {"PSWRD", ATTENTION_PAR_INT, NULL, BLOCK_PSWRD}, 564b4149dc7SYuval Mintz {"PSWRD (pci_clk)", ATTENTION_PAR_INT, 565b4149dc7SYuval Mintz NULL, BLOCK_PSWRD2}, 566b4149dc7SYuval Mintz {"PSWHST", ATTENTION_PAR_INT, 567b4149dc7SYuval Mintz qed_pswhst_attn_cb, BLOCK_PSWHST}, 568b4149dc7SYuval Mintz {"PSWHST (pci_clk)", ATTENTION_PAR_INT, 569b4149dc7SYuval Mintz NULL, BLOCK_PSWHST2}, 570b4149dc7SYuval Mintz {"GRC", ATTENTION_PAR_INT, 571b4149dc7SYuval Mintz qed_grc_attn_cb, BLOCK_GRC}, 572b4149dc7SYuval Mintz {"CPMU", ATTENTION_PAR_INT, NULL, BLOCK_CPMU}, 573b4149dc7SYuval Mintz {"NCSI", ATTENTION_PAR_INT, NULL, BLOCK_NCSI}, 574b4149dc7SYuval Mintz {"MSEM PRAM", ATTENTION_PAR, NULL, MAX_BLOCK_ID}, 575b4149dc7SYuval Mintz {"PSEM PRAM", ATTENTION_PAR, NULL, MAX_BLOCK_ID}, 576b4149dc7SYuval Mintz {"TSEM PRAM", ATTENTION_PAR, NULL, MAX_BLOCK_ID}, 577b4149dc7SYuval Mintz {"USEM PRAM", ATTENTION_PAR, NULL, MAX_BLOCK_ID}, 578b4149dc7SYuval Mintz {"XSEM PRAM", ATTENTION_PAR, NULL, MAX_BLOCK_ID}, 579b4149dc7SYuval Mintz {"YSEM PRAM", ATTENTION_PAR, NULL, MAX_BLOCK_ID}, 580b4149dc7SYuval Mintz {"pxp_misc_mps", ATTENTION_PAR, NULL, BLOCK_PGLCS}, 581ff38577aSYuval Mintz {"PCIE glue/PXP Exp. ROM", ATTENTION_SINGLE, 582b4149dc7SYuval Mintz NULL, BLOCK_PGLCS}, 583b4149dc7SYuval Mintz {"PERST_B assertion", ATTENTION_SINGLE, 584b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 585ff38577aSYuval Mintz {"PERST_B deassertion", ATTENTION_SINGLE, 586b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 587ff38577aSYuval Mintz {"Reserved %d", (2 << ATTENTION_LENGTH_SHIFT), 588b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 5890d956e8aSYuval Mintz } 5900d956e8aSYuval Mintz }, 5910d956e8aSYuval Mintz 5920d956e8aSYuval Mintz { 5930d956e8aSYuval Mintz { /* After Invert 9 */ 594b4149dc7SYuval Mintz {"MCP Latched memory", ATTENTION_PAR, 595b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 596ff38577aSYuval Mintz {"MCP Latched scratchpad cache", ATTENTION_SINGLE, 597b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 598b4149dc7SYuval Mintz {"MCP Latched ump_tx", ATTENTION_PAR, 599b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 600ff38577aSYuval Mintz {"MCP Latched scratchpad", ATTENTION_PAR, 601b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 602ff38577aSYuval Mintz {"Reserved %d", (28 << ATTENTION_LENGTH_SHIFT), 603b4149dc7SYuval Mintz NULL, MAX_BLOCK_ID}, 6040d956e8aSYuval Mintz } 6050d956e8aSYuval Mintz }, 6060d956e8aSYuval Mintz }; 6070d956e8aSYuval Mintz 608ba36f718SMintz, Yuval static struct aeu_invert_reg_bit * 609ba36f718SMintz, Yuval qed_int_aeu_translate(struct qed_hwfn *p_hwfn, 610ba36f718SMintz, Yuval struct aeu_invert_reg_bit *p_bit) 611ba36f718SMintz, Yuval { 612ba36f718SMintz, Yuval if (!QED_IS_BB(p_hwfn->cdev)) 613ba36f718SMintz, Yuval return p_bit; 614ba36f718SMintz, Yuval 615ba36f718SMintz, Yuval if (!(p_bit->flags & ATTENTION_BB_DIFFERENT)) 616ba36f718SMintz, Yuval return p_bit; 617ba36f718SMintz, Yuval 618ba36f718SMintz, Yuval return &aeu_descs_special[(p_bit->flags & ATTENTION_BB_MASK) >> 619ba36f718SMintz, Yuval ATTENTION_BB_SHIFT]; 620ba36f718SMintz, Yuval } 621ba36f718SMintz, Yuval 622ba36f718SMintz, Yuval static bool qed_int_is_parity_flag(struct qed_hwfn *p_hwfn, 623ba36f718SMintz, Yuval struct aeu_invert_reg_bit *p_bit) 624ba36f718SMintz, Yuval { 625ba36f718SMintz, Yuval return !!(qed_int_aeu_translate(p_hwfn, p_bit)->flags & 626ba36f718SMintz, Yuval ATTENTION_PARITY); 627ba36f718SMintz, Yuval } 628ba36f718SMintz, Yuval 629cc875c2eSYuval Mintz #define ATTN_STATE_BITS (0xfff) 630cc875c2eSYuval Mintz #define ATTN_BITS_MASKABLE (0x3ff) 631cc875c2eSYuval Mintz struct qed_sb_attn_info { 632cc875c2eSYuval Mintz /* Virtual & Physical address of the SB */ 633cc875c2eSYuval Mintz struct atten_status_block *sb_attn; 634cc875c2eSYuval Mintz dma_addr_t sb_phys; 635cc875c2eSYuval Mintz 636cc875c2eSYuval Mintz /* Last seen running index */ 637cc875c2eSYuval Mintz u16 index; 638cc875c2eSYuval Mintz 6390d956e8aSYuval Mintz /* A mask of the AEU bits resulting in a parity error */ 6400d956e8aSYuval Mintz u32 parity_mask[NUM_ATTN_REGS]; 6410d956e8aSYuval Mintz 6420d956e8aSYuval Mintz /* A pointer to the attention description structure */ 6430d956e8aSYuval Mintz struct aeu_invert_reg *p_aeu_desc; 6440d956e8aSYuval Mintz 645cc875c2eSYuval Mintz /* Previously asserted attentions, which are still unasserted */ 646cc875c2eSYuval Mintz u16 known_attn; 647cc875c2eSYuval Mintz 648cc875c2eSYuval Mintz /* Cleanup address for the link's general hw attention */ 649cc875c2eSYuval Mintz u32 mfw_attn_addr; 650cc875c2eSYuval Mintz }; 651cc875c2eSYuval Mintz 652cc875c2eSYuval Mintz static inline u16 qed_attn_update_idx(struct qed_hwfn *p_hwfn, 653cc875c2eSYuval Mintz struct qed_sb_attn_info *p_sb_desc) 654cc875c2eSYuval Mintz { 6551a635e48SYuval Mintz u16 rc = 0, index; 656cc875c2eSYuval Mintz 657cc875c2eSYuval Mintz /* Make certain HW write took affect */ 658cc875c2eSYuval Mintz mmiowb(); 659cc875c2eSYuval Mintz 660cc875c2eSYuval Mintz index = le16_to_cpu(p_sb_desc->sb_attn->sb_index); 661cc875c2eSYuval Mintz if (p_sb_desc->index != index) { 662cc875c2eSYuval Mintz p_sb_desc->index = index; 663cc875c2eSYuval Mintz rc = QED_SB_ATT_IDX; 664cc875c2eSYuval Mintz } 665cc875c2eSYuval Mintz 666cc875c2eSYuval Mintz /* Make certain we got a consistent view with HW */ 667cc875c2eSYuval Mintz mmiowb(); 668cc875c2eSYuval Mintz 669cc875c2eSYuval Mintz return rc; 670cc875c2eSYuval Mintz } 671cc875c2eSYuval Mintz 672cc875c2eSYuval Mintz /** 673cc875c2eSYuval Mintz * @brief qed_int_assertion - handles asserted attention bits 674cc875c2eSYuval Mintz * 675cc875c2eSYuval Mintz * @param p_hwfn 676cc875c2eSYuval Mintz * @param asserted_bits newly asserted bits 677cc875c2eSYuval Mintz * @return int 678cc875c2eSYuval Mintz */ 6791a635e48SYuval Mintz static int qed_int_assertion(struct qed_hwfn *p_hwfn, u16 asserted_bits) 680cc875c2eSYuval Mintz { 681cc875c2eSYuval Mintz struct qed_sb_attn_info *sb_attn_sw = p_hwfn->p_sb_attn; 682cc875c2eSYuval Mintz u32 igu_mask; 683cc875c2eSYuval Mintz 684cc875c2eSYuval Mintz /* Mask the source of the attention in the IGU */ 6851a635e48SYuval Mintz igu_mask = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, IGU_REG_ATTENTION_ENABLE); 686cc875c2eSYuval Mintz DP_VERBOSE(p_hwfn, NETIF_MSG_INTR, "IGU mask: 0x%08x --> 0x%08x\n", 687cc875c2eSYuval Mintz igu_mask, igu_mask & ~(asserted_bits & ATTN_BITS_MASKABLE)); 688cc875c2eSYuval Mintz igu_mask &= ~(asserted_bits & ATTN_BITS_MASKABLE); 689cc875c2eSYuval Mintz qed_wr(p_hwfn, p_hwfn->p_dpc_ptt, IGU_REG_ATTENTION_ENABLE, igu_mask); 690cc875c2eSYuval Mintz 691cc875c2eSYuval Mintz DP_VERBOSE(p_hwfn, NETIF_MSG_INTR, 692cc875c2eSYuval Mintz "inner known ATTN state: 0x%04x --> 0x%04x\n", 693cc875c2eSYuval Mintz sb_attn_sw->known_attn, 694cc875c2eSYuval Mintz sb_attn_sw->known_attn | asserted_bits); 695cc875c2eSYuval Mintz sb_attn_sw->known_attn |= asserted_bits; 696cc875c2eSYuval Mintz 697cc875c2eSYuval Mintz /* Handle MCP events */ 698cc875c2eSYuval Mintz if (asserted_bits & 0x100) { 699cc875c2eSYuval Mintz qed_mcp_handle_events(p_hwfn, p_hwfn->p_dpc_ptt); 700cc875c2eSYuval Mintz /* Clean the MCP attention */ 701cc875c2eSYuval Mintz qed_wr(p_hwfn, p_hwfn->p_dpc_ptt, 702cc875c2eSYuval Mintz sb_attn_sw->mfw_attn_addr, 0); 703cc875c2eSYuval Mintz } 704cc875c2eSYuval Mintz 705cc875c2eSYuval Mintz DIRECT_REG_WR((u8 __iomem *)p_hwfn->regview + 706cc875c2eSYuval Mintz GTT_BAR0_MAP_REG_IGU_CMD + 707cc875c2eSYuval Mintz ((IGU_CMD_ATTN_BIT_SET_UPPER - 708cc875c2eSYuval Mintz IGU_CMD_INT_ACK_BASE) << 3), 709cc875c2eSYuval Mintz (u32)asserted_bits); 710cc875c2eSYuval Mintz 711cc875c2eSYuval Mintz DP_VERBOSE(p_hwfn, NETIF_MSG_INTR, "set cmd IGU: 0x%04x\n", 712cc875c2eSYuval Mintz asserted_bits); 713cc875c2eSYuval Mintz 714cc875c2eSYuval Mintz return 0; 715cc875c2eSYuval Mintz } 716cc875c2eSYuval Mintz 7170ebbd1c8SMintz, Yuval static void qed_int_attn_print(struct qed_hwfn *p_hwfn, 7180ebbd1c8SMintz, Yuval enum block_id id, 7190ebbd1c8SMintz, Yuval enum dbg_attn_type type, bool b_clear) 720ff38577aSYuval Mintz { 7210ebbd1c8SMintz, Yuval struct dbg_attn_block_result attn_results; 7220ebbd1c8SMintz, Yuval enum dbg_status status; 723ff38577aSYuval Mintz 7240ebbd1c8SMintz, Yuval memset(&attn_results, 0, sizeof(attn_results)); 725ff38577aSYuval Mintz 7260ebbd1c8SMintz, Yuval status = qed_dbg_read_attn(p_hwfn, p_hwfn->p_dpc_ptt, id, type, 7270ebbd1c8SMintz, Yuval b_clear, &attn_results); 7280ebbd1c8SMintz, Yuval if (status != DBG_STATUS_OK) 729ff38577aSYuval Mintz DP_NOTICE(p_hwfn, 7300ebbd1c8SMintz, Yuval "Failed to parse attention information [status: %s]\n", 7310ebbd1c8SMintz, Yuval qed_dbg_get_status_str(status)); 7320ebbd1c8SMintz, Yuval else 7330ebbd1c8SMintz, Yuval qed_dbg_parse_attn(p_hwfn, &attn_results); 734ff38577aSYuval Mintz } 735ff38577aSYuval Mintz 736cc875c2eSYuval Mintz /** 7370d956e8aSYuval Mintz * @brief qed_int_deassertion_aeu_bit - handles the effects of a single 7380d956e8aSYuval Mintz * cause of the attention 7390d956e8aSYuval Mintz * 7400d956e8aSYuval Mintz * @param p_hwfn 7410d956e8aSYuval Mintz * @param p_aeu - descriptor of an AEU bit which caused the attention 7420d956e8aSYuval Mintz * @param aeu_en_reg - register offset of the AEU enable reg. which configured 7430d956e8aSYuval Mintz * this bit to this group. 7440d956e8aSYuval Mintz * @param bit_index - index of this bit in the aeu_en_reg 7450d956e8aSYuval Mintz * 7460d956e8aSYuval Mintz * @return int 7470d956e8aSYuval Mintz */ 7480d956e8aSYuval Mintz static int 7490d956e8aSYuval Mintz qed_int_deassertion_aeu_bit(struct qed_hwfn *p_hwfn, 7500d956e8aSYuval Mintz struct aeu_invert_reg_bit *p_aeu, 7510d956e8aSYuval Mintz u32 aeu_en_reg, 7526010179dSMintz, Yuval const char *p_bit_name, u32 bitmask) 7530d956e8aSYuval Mintz { 7540ebbd1c8SMintz, Yuval bool b_fatal = false; 7550d956e8aSYuval Mintz int rc = -EINVAL; 756b4149dc7SYuval Mintz u32 val; 7570d956e8aSYuval Mintz 7580d956e8aSYuval Mintz DP_INFO(p_hwfn, "Deasserted attention `%s'[%08x]\n", 7596010179dSMintz, Yuval p_bit_name, bitmask); 7600d956e8aSYuval Mintz 761b4149dc7SYuval Mintz /* Call callback before clearing the interrupt status */ 762b4149dc7SYuval Mintz if (p_aeu->cb) { 763b4149dc7SYuval Mintz DP_INFO(p_hwfn, "`%s (attention)': Calling Callback function\n", 7646010179dSMintz, Yuval p_bit_name); 765b4149dc7SYuval Mintz rc = p_aeu->cb(p_hwfn); 766b4149dc7SYuval Mintz } 767b4149dc7SYuval Mintz 7680ebbd1c8SMintz, Yuval if (rc) 7690ebbd1c8SMintz, Yuval b_fatal = true; 770ff38577aSYuval Mintz 7710ebbd1c8SMintz, Yuval /* Print HW block interrupt registers */ 7720ebbd1c8SMintz, Yuval if (p_aeu->block_index != MAX_BLOCK_ID) 7730ebbd1c8SMintz, Yuval qed_int_attn_print(p_hwfn, p_aeu->block_index, 7740ebbd1c8SMintz, Yuval ATTN_TYPE_INTERRUPT, !b_fatal); 775ff38577aSYuval Mintz 776ff38577aSYuval Mintz 777b4149dc7SYuval Mintz /* If the attention is benign, no need to prevent it */ 778b4149dc7SYuval Mintz if (!rc) 779b4149dc7SYuval Mintz goto out; 780b4149dc7SYuval Mintz 7810d956e8aSYuval Mintz /* Prevent this Attention from being asserted in the future */ 7820d956e8aSYuval Mintz val = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, aeu_en_reg); 783b4149dc7SYuval Mintz qed_wr(p_hwfn, p_hwfn->p_dpc_ptt, aeu_en_reg, (val & ~bitmask)); 7840d956e8aSYuval Mintz DP_INFO(p_hwfn, "`%s' - Disabled future attentions\n", 7856010179dSMintz, Yuval p_bit_name); 7860d956e8aSYuval Mintz 787b4149dc7SYuval Mintz out: 7880d956e8aSYuval Mintz return rc; 7890d956e8aSYuval Mintz } 7900d956e8aSYuval Mintz 791ff38577aSYuval Mintz /** 792ff38577aSYuval Mintz * @brief qed_int_deassertion_parity - handle a single parity AEU source 793ff38577aSYuval Mintz * 794ff38577aSYuval Mintz * @param p_hwfn 795ff38577aSYuval Mintz * @param p_aeu - descriptor of an AEU bit which caused the parity 796ff38577aSYuval Mintz * @param bit_index 797ff38577aSYuval Mintz */ 798ff38577aSYuval Mintz static void qed_int_deassertion_parity(struct qed_hwfn *p_hwfn, 799ff38577aSYuval Mintz struct aeu_invert_reg_bit *p_aeu, 800ff38577aSYuval Mintz u8 bit_index) 801ff38577aSYuval Mintz { 802ff38577aSYuval Mintz u32 block_id = p_aeu->block_index; 803ff38577aSYuval Mintz 804ff38577aSYuval Mintz DP_INFO(p_hwfn->cdev, "%s[%d] parity attention is set\n", 805ff38577aSYuval Mintz p_aeu->bit_name, bit_index); 806ff38577aSYuval Mintz 807ff38577aSYuval Mintz if (block_id != MAX_BLOCK_ID) { 8080ebbd1c8SMintz, Yuval qed_int_attn_print(p_hwfn, block_id, ATTN_TYPE_PARITY, false); 809ff38577aSYuval Mintz 810ff38577aSYuval Mintz /* In BB, there's a single parity bit for several blocks */ 811ff38577aSYuval Mintz if (block_id == BLOCK_BTB) { 8120ebbd1c8SMintz, Yuval qed_int_attn_print(p_hwfn, BLOCK_OPTE, 8130ebbd1c8SMintz, Yuval ATTN_TYPE_PARITY, false); 8140ebbd1c8SMintz, Yuval qed_int_attn_print(p_hwfn, BLOCK_MCP, 8150ebbd1c8SMintz, Yuval ATTN_TYPE_PARITY, false); 816ff38577aSYuval Mintz } 817ff38577aSYuval Mintz } 818ff38577aSYuval Mintz } 819ff38577aSYuval Mintz 8200d956e8aSYuval Mintz /** 821cc875c2eSYuval Mintz * @brief - handles deassertion of previously asserted attentions. 822cc875c2eSYuval Mintz * 823cc875c2eSYuval Mintz * @param p_hwfn 824cc875c2eSYuval Mintz * @param deasserted_bits - newly deasserted bits 825cc875c2eSYuval Mintz * @return int 826cc875c2eSYuval Mintz * 827cc875c2eSYuval Mintz */ 828cc875c2eSYuval Mintz static int qed_int_deassertion(struct qed_hwfn *p_hwfn, 829cc875c2eSYuval Mintz u16 deasserted_bits) 830cc875c2eSYuval Mintz { 831cc875c2eSYuval Mintz struct qed_sb_attn_info *sb_attn_sw = p_hwfn->p_sb_attn; 8320d956e8aSYuval Mintz u32 aeu_inv_arr[NUM_ATTN_REGS], aeu_mask; 8330d956e8aSYuval Mintz u8 i, j, k, bit_idx; 8340d956e8aSYuval Mintz int rc = 0; 835cc875c2eSYuval Mintz 8360d956e8aSYuval Mintz /* Read the attention registers in the AEU */ 8370d956e8aSYuval Mintz for (i = 0; i < NUM_ATTN_REGS; i++) { 8380d956e8aSYuval Mintz aeu_inv_arr[i] = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 8390d956e8aSYuval Mintz MISC_REG_AEU_AFTER_INVERT_1_IGU + 8400d956e8aSYuval Mintz i * 0x4); 8410d956e8aSYuval Mintz DP_VERBOSE(p_hwfn, NETIF_MSG_INTR, 8420d956e8aSYuval Mintz "Deasserted bits [%d]: %08x\n", 8430d956e8aSYuval Mintz i, aeu_inv_arr[i]); 8440d956e8aSYuval Mintz } 8450d956e8aSYuval Mintz 8460d956e8aSYuval Mintz /* Find parity attentions first */ 8470d956e8aSYuval Mintz for (i = 0; i < NUM_ATTN_REGS; i++) { 8480d956e8aSYuval Mintz struct aeu_invert_reg *p_aeu = &sb_attn_sw->p_aeu_desc[i]; 8490d956e8aSYuval Mintz u32 en = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, 8500d956e8aSYuval Mintz MISC_REG_AEU_ENABLE1_IGU_OUT_0 + 8510d956e8aSYuval Mintz i * sizeof(u32)); 8520d956e8aSYuval Mintz u32 parities; 8530d956e8aSYuval Mintz 8540d956e8aSYuval Mintz /* Skip register in which no parity bit is currently set */ 8550d956e8aSYuval Mintz parities = sb_attn_sw->parity_mask[i] & aeu_inv_arr[i] & en; 8560d956e8aSYuval Mintz if (!parities) 8570d956e8aSYuval Mintz continue; 8580d956e8aSYuval Mintz 8590d956e8aSYuval Mintz for (j = 0, bit_idx = 0; bit_idx < 32; j++) { 8600d956e8aSYuval Mintz struct aeu_invert_reg_bit *p_bit = &p_aeu->bits[j]; 8610d956e8aSYuval Mintz 862ba36f718SMintz, Yuval if (qed_int_is_parity_flag(p_hwfn, p_bit) && 8631a635e48SYuval Mintz !!(parities & BIT(bit_idx))) 864ff38577aSYuval Mintz qed_int_deassertion_parity(p_hwfn, p_bit, 865ff38577aSYuval Mintz bit_idx); 8660d956e8aSYuval Mintz 8670d956e8aSYuval Mintz bit_idx += ATTENTION_LENGTH(p_bit->flags); 8680d956e8aSYuval Mintz } 8690d956e8aSYuval Mintz } 8700d956e8aSYuval Mintz 8710d956e8aSYuval Mintz /* Find non-parity cause for attention and act */ 8720d956e8aSYuval Mintz for (k = 0; k < MAX_ATTN_GRPS; k++) { 8730d956e8aSYuval Mintz struct aeu_invert_reg_bit *p_aeu; 8740d956e8aSYuval Mintz 8750d956e8aSYuval Mintz /* Handle only groups whose attention is currently deasserted */ 8760d956e8aSYuval Mintz if (!(deasserted_bits & (1 << k))) 8770d956e8aSYuval Mintz continue; 8780d956e8aSYuval Mintz 8790d956e8aSYuval Mintz for (i = 0; i < NUM_ATTN_REGS; i++) { 8800d956e8aSYuval Mintz u32 aeu_en = MISC_REG_AEU_ENABLE1_IGU_OUT_0 + 8810d956e8aSYuval Mintz i * sizeof(u32) + 8820d956e8aSYuval Mintz k * sizeof(u32) * NUM_ATTN_REGS; 8830d956e8aSYuval Mintz u32 en, bits; 8840d956e8aSYuval Mintz 8850d956e8aSYuval Mintz en = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, aeu_en); 8860d956e8aSYuval Mintz bits = aeu_inv_arr[i] & en; 8870d956e8aSYuval Mintz 8880d956e8aSYuval Mintz /* Skip if no bit from this group is currently set */ 8890d956e8aSYuval Mintz if (!bits) 8900d956e8aSYuval Mintz continue; 8910d956e8aSYuval Mintz 8920d956e8aSYuval Mintz /* Find all set bits from current register which belong 8930d956e8aSYuval Mintz * to current group, making them responsible for the 8940d956e8aSYuval Mintz * previous assertion. 8950d956e8aSYuval Mintz */ 8960d956e8aSYuval Mintz for (j = 0, bit_idx = 0; bit_idx < 32; j++) { 8976010179dSMintz, Yuval long unsigned int bitmask; 8980d956e8aSYuval Mintz u8 bit, bit_len; 8990d956e8aSYuval Mintz 9000d956e8aSYuval Mintz p_aeu = &sb_attn_sw->p_aeu_desc[i].bits[j]; 901ba36f718SMintz, Yuval p_aeu = qed_int_aeu_translate(p_hwfn, p_aeu); 9020d956e8aSYuval Mintz 9030d956e8aSYuval Mintz bit = bit_idx; 9040d956e8aSYuval Mintz bit_len = ATTENTION_LENGTH(p_aeu->flags); 905ba36f718SMintz, Yuval if (qed_int_is_parity_flag(p_hwfn, p_aeu)) { 9060d956e8aSYuval Mintz /* Skip Parity */ 9070d956e8aSYuval Mintz bit++; 9080d956e8aSYuval Mintz bit_len--; 9090d956e8aSYuval Mintz } 9100d956e8aSYuval Mintz 9110d956e8aSYuval Mintz bitmask = bits & (((1 << bit_len) - 1) << bit); 9126010179dSMintz, Yuval bitmask >>= bit; 9136010179dSMintz, Yuval 9140d956e8aSYuval Mintz if (bitmask) { 9156010179dSMintz, Yuval u32 flags = p_aeu->flags; 9166010179dSMintz, Yuval char bit_name[30]; 9176010179dSMintz, Yuval u8 num; 9186010179dSMintz, Yuval 9196010179dSMintz, Yuval num = (u8)find_first_bit(&bitmask, 9206010179dSMintz, Yuval bit_len); 9216010179dSMintz, Yuval 9226010179dSMintz, Yuval /* Some bits represent more than a 9236010179dSMintz, Yuval * a single interrupt. Correctly print 9246010179dSMintz, Yuval * their name. 9256010179dSMintz, Yuval */ 9266010179dSMintz, Yuval if (ATTENTION_LENGTH(flags) > 2 || 9276010179dSMintz, Yuval ((flags & ATTENTION_PAR_INT) && 9286010179dSMintz, Yuval ATTENTION_LENGTH(flags) > 1)) 9296010179dSMintz, Yuval snprintf(bit_name, 30, 9306010179dSMintz, Yuval p_aeu->bit_name, num); 9316010179dSMintz, Yuval else 9326010179dSMintz, Yuval strncpy(bit_name, 9336010179dSMintz, Yuval p_aeu->bit_name, 30); 9346010179dSMintz, Yuval 9356010179dSMintz, Yuval /* We now need to pass bitmask in its 9366010179dSMintz, Yuval * correct position. 9376010179dSMintz, Yuval */ 9386010179dSMintz, Yuval bitmask <<= bit; 9396010179dSMintz, Yuval 9400d956e8aSYuval Mintz /* Handle source of the attention */ 9410d956e8aSYuval Mintz qed_int_deassertion_aeu_bit(p_hwfn, 9420d956e8aSYuval Mintz p_aeu, 9430d956e8aSYuval Mintz aeu_en, 9446010179dSMintz, Yuval bit_name, 9450d956e8aSYuval Mintz bitmask); 9460d956e8aSYuval Mintz } 9470d956e8aSYuval Mintz 9480d956e8aSYuval Mintz bit_idx += ATTENTION_LENGTH(p_aeu->flags); 9490d956e8aSYuval Mintz } 9500d956e8aSYuval Mintz } 9510d956e8aSYuval Mintz } 952cc875c2eSYuval Mintz 953cc875c2eSYuval Mintz /* Clear IGU indication for the deasserted bits */ 954cc875c2eSYuval Mintz DIRECT_REG_WR((u8 __iomem *)p_hwfn->regview + 955cc875c2eSYuval Mintz GTT_BAR0_MAP_REG_IGU_CMD + 956cc875c2eSYuval Mintz ((IGU_CMD_ATTN_BIT_CLR_UPPER - 957cc875c2eSYuval Mintz IGU_CMD_INT_ACK_BASE) << 3), 958cc875c2eSYuval Mintz ~((u32)deasserted_bits)); 959cc875c2eSYuval Mintz 960cc875c2eSYuval Mintz /* Unmask deasserted attentions in IGU */ 9611a635e48SYuval Mintz aeu_mask = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, IGU_REG_ATTENTION_ENABLE); 962cc875c2eSYuval Mintz aeu_mask |= (deasserted_bits & ATTN_BITS_MASKABLE); 963cc875c2eSYuval Mintz qed_wr(p_hwfn, p_hwfn->p_dpc_ptt, IGU_REG_ATTENTION_ENABLE, aeu_mask); 964cc875c2eSYuval Mintz 965cc875c2eSYuval Mintz /* Clear deassertion from inner state */ 966cc875c2eSYuval Mintz sb_attn_sw->known_attn &= ~deasserted_bits; 967cc875c2eSYuval Mintz 9680d956e8aSYuval Mintz return rc; 969cc875c2eSYuval Mintz } 970cc875c2eSYuval Mintz 971cc875c2eSYuval Mintz static int qed_int_attentions(struct qed_hwfn *p_hwfn) 972cc875c2eSYuval Mintz { 973cc875c2eSYuval Mintz struct qed_sb_attn_info *p_sb_attn_sw = p_hwfn->p_sb_attn; 974cc875c2eSYuval Mintz struct atten_status_block *p_sb_attn = p_sb_attn_sw->sb_attn; 975cc875c2eSYuval Mintz u32 attn_bits = 0, attn_acks = 0; 976cc875c2eSYuval Mintz u16 asserted_bits, deasserted_bits; 977cc875c2eSYuval Mintz __le16 index; 978cc875c2eSYuval Mintz int rc = 0; 979cc875c2eSYuval Mintz 980cc875c2eSYuval Mintz /* Read current attention bits/acks - safeguard against attentions 981cc875c2eSYuval Mintz * by guaranting work on a synchronized timeframe 982cc875c2eSYuval Mintz */ 983cc875c2eSYuval Mintz do { 984cc875c2eSYuval Mintz index = p_sb_attn->sb_index; 985cc875c2eSYuval Mintz attn_bits = le32_to_cpu(p_sb_attn->atten_bits); 986cc875c2eSYuval Mintz attn_acks = le32_to_cpu(p_sb_attn->atten_ack); 987cc875c2eSYuval Mintz } while (index != p_sb_attn->sb_index); 988cc875c2eSYuval Mintz p_sb_attn->sb_index = index; 989cc875c2eSYuval Mintz 990cc875c2eSYuval Mintz /* Attention / Deassertion are meaningful (and in correct state) 991cc875c2eSYuval Mintz * only when they differ and consistent with known state - deassertion 992cc875c2eSYuval Mintz * when previous attention & current ack, and assertion when current 993cc875c2eSYuval Mintz * attention with no previous attention 994cc875c2eSYuval Mintz */ 995cc875c2eSYuval Mintz asserted_bits = (attn_bits & ~attn_acks & ATTN_STATE_BITS) & 996cc875c2eSYuval Mintz ~p_sb_attn_sw->known_attn; 997cc875c2eSYuval Mintz deasserted_bits = (~attn_bits & attn_acks & ATTN_STATE_BITS) & 998cc875c2eSYuval Mintz p_sb_attn_sw->known_attn; 999cc875c2eSYuval Mintz 1000cc875c2eSYuval Mintz if ((asserted_bits & ~0x100) || (deasserted_bits & ~0x100)) { 1001cc875c2eSYuval Mintz DP_INFO(p_hwfn, 1002cc875c2eSYuval Mintz "Attention: Index: 0x%04x, Bits: 0x%08x, Acks: 0x%08x, asserted: 0x%04x, De-asserted 0x%04x [Prev. known: 0x%04x]\n", 1003cc875c2eSYuval Mintz index, attn_bits, attn_acks, asserted_bits, 1004cc875c2eSYuval Mintz deasserted_bits, p_sb_attn_sw->known_attn); 1005cc875c2eSYuval Mintz } else if (asserted_bits == 0x100) { 10061a635e48SYuval Mintz DP_INFO(p_hwfn, "MFW indication via attention\n"); 1007cc875c2eSYuval Mintz } else { 1008cc875c2eSYuval Mintz DP_VERBOSE(p_hwfn, NETIF_MSG_INTR, 1009cc875c2eSYuval Mintz "MFW indication [deassertion]\n"); 1010cc875c2eSYuval Mintz } 1011cc875c2eSYuval Mintz 1012cc875c2eSYuval Mintz if (asserted_bits) { 1013cc875c2eSYuval Mintz rc = qed_int_assertion(p_hwfn, asserted_bits); 1014cc875c2eSYuval Mintz if (rc) 1015cc875c2eSYuval Mintz return rc; 1016cc875c2eSYuval Mintz } 1017cc875c2eSYuval Mintz 10181a635e48SYuval Mintz if (deasserted_bits) 1019cc875c2eSYuval Mintz rc = qed_int_deassertion(p_hwfn, deasserted_bits); 1020cc875c2eSYuval Mintz 1021cc875c2eSYuval Mintz return rc; 1022cc875c2eSYuval Mintz } 1023cc875c2eSYuval Mintz 1024cc875c2eSYuval Mintz static void qed_sb_ack_attn(struct qed_hwfn *p_hwfn, 10251a635e48SYuval Mintz void __iomem *igu_addr, u32 ack_cons) 1026cc875c2eSYuval Mintz { 1027cc875c2eSYuval Mintz struct igu_prod_cons_update igu_ack = { 0 }; 1028cc875c2eSYuval Mintz 1029cc875c2eSYuval Mintz igu_ack.sb_id_and_flags = 1030cc875c2eSYuval Mintz ((ack_cons << IGU_PROD_CONS_UPDATE_SB_INDEX_SHIFT) | 1031cc875c2eSYuval Mintz (1 << IGU_PROD_CONS_UPDATE_UPDATE_FLAG_SHIFT) | 1032cc875c2eSYuval Mintz (IGU_INT_NOP << IGU_PROD_CONS_UPDATE_ENABLE_INT_SHIFT) | 1033cc875c2eSYuval Mintz (IGU_SEG_ACCESS_ATTN << 1034cc875c2eSYuval Mintz IGU_PROD_CONS_UPDATE_SEGMENT_ACCESS_SHIFT)); 1035cc875c2eSYuval Mintz 1036cc875c2eSYuval Mintz DIRECT_REG_WR(igu_addr, igu_ack.sb_id_and_flags); 1037cc875c2eSYuval Mintz 1038cc875c2eSYuval Mintz /* Both segments (interrupts & acks) are written to same place address; 1039cc875c2eSYuval Mintz * Need to guarantee all commands will be received (in-order) by HW. 1040cc875c2eSYuval Mintz */ 1041cc875c2eSYuval Mintz mmiowb(); 1042cc875c2eSYuval Mintz barrier(); 1043cc875c2eSYuval Mintz } 1044cc875c2eSYuval Mintz 1045fe56b9e6SYuval Mintz void qed_int_sp_dpc(unsigned long hwfn_cookie) 1046fe56b9e6SYuval Mintz { 1047fe56b9e6SYuval Mintz struct qed_hwfn *p_hwfn = (struct qed_hwfn *)hwfn_cookie; 1048fe56b9e6SYuval Mintz struct qed_pi_info *pi_info = NULL; 1049cc875c2eSYuval Mintz struct qed_sb_attn_info *sb_attn; 1050fe56b9e6SYuval Mintz struct qed_sb_info *sb_info; 1051fe56b9e6SYuval Mintz int arr_size; 1052fe56b9e6SYuval Mintz u16 rc = 0; 1053fe56b9e6SYuval Mintz 1054fe56b9e6SYuval Mintz if (!p_hwfn->p_sp_sb) { 1055fe56b9e6SYuval Mintz DP_ERR(p_hwfn->cdev, "DPC called - no p_sp_sb\n"); 1056fe56b9e6SYuval Mintz return; 1057fe56b9e6SYuval Mintz } 1058fe56b9e6SYuval Mintz 1059fe56b9e6SYuval Mintz sb_info = &p_hwfn->p_sp_sb->sb_info; 1060fe56b9e6SYuval Mintz arr_size = ARRAY_SIZE(p_hwfn->p_sp_sb->pi_info_arr); 1061fe56b9e6SYuval Mintz if (!sb_info) { 1062fe56b9e6SYuval Mintz DP_ERR(p_hwfn->cdev, 1063fe56b9e6SYuval Mintz "Status block is NULL - cannot ack interrupts\n"); 1064fe56b9e6SYuval Mintz return; 1065fe56b9e6SYuval Mintz } 1066fe56b9e6SYuval Mintz 1067cc875c2eSYuval Mintz if (!p_hwfn->p_sb_attn) { 1068cc875c2eSYuval Mintz DP_ERR(p_hwfn->cdev, "DPC called - no p_sb_attn"); 1069cc875c2eSYuval Mintz return; 1070cc875c2eSYuval Mintz } 1071cc875c2eSYuval Mintz sb_attn = p_hwfn->p_sb_attn; 1072cc875c2eSYuval Mintz 1073fe56b9e6SYuval Mintz DP_VERBOSE(p_hwfn, NETIF_MSG_INTR, "DPC Called! (hwfn %p %d)\n", 1074fe56b9e6SYuval Mintz p_hwfn, p_hwfn->my_id); 1075fe56b9e6SYuval Mintz 1076fe56b9e6SYuval Mintz /* Disable ack for def status block. Required both for msix + 1077fe56b9e6SYuval Mintz * inta in non-mask mode, in inta does no harm. 1078fe56b9e6SYuval Mintz */ 1079fe56b9e6SYuval Mintz qed_sb_ack(sb_info, IGU_INT_DISABLE, 0); 1080fe56b9e6SYuval Mintz 1081fe56b9e6SYuval Mintz /* Gather Interrupts/Attentions information */ 1082fe56b9e6SYuval Mintz if (!sb_info->sb_virt) { 10831a635e48SYuval Mintz DP_ERR(p_hwfn->cdev, 1084fe56b9e6SYuval Mintz "Interrupt Status block is NULL - cannot check for new interrupts!\n"); 1085fe56b9e6SYuval Mintz } else { 1086fe56b9e6SYuval Mintz u32 tmp_index = sb_info->sb_ack; 1087fe56b9e6SYuval Mintz 1088fe56b9e6SYuval Mintz rc = qed_sb_update_sb_idx(sb_info); 1089fe56b9e6SYuval Mintz DP_VERBOSE(p_hwfn->cdev, NETIF_MSG_INTR, 1090fe56b9e6SYuval Mintz "Interrupt indices: 0x%08x --> 0x%08x\n", 1091fe56b9e6SYuval Mintz tmp_index, sb_info->sb_ack); 1092fe56b9e6SYuval Mintz } 1093fe56b9e6SYuval Mintz 1094cc875c2eSYuval Mintz if (!sb_attn || !sb_attn->sb_attn) { 10951a635e48SYuval Mintz DP_ERR(p_hwfn->cdev, 1096cc875c2eSYuval Mintz "Attentions Status block is NULL - cannot check for new attentions!\n"); 1097cc875c2eSYuval Mintz } else { 1098cc875c2eSYuval Mintz u16 tmp_index = sb_attn->index; 1099cc875c2eSYuval Mintz 1100cc875c2eSYuval Mintz rc |= qed_attn_update_idx(p_hwfn, sb_attn); 1101cc875c2eSYuval Mintz DP_VERBOSE(p_hwfn->cdev, NETIF_MSG_INTR, 1102cc875c2eSYuval Mintz "Attention indices: 0x%08x --> 0x%08x\n", 1103cc875c2eSYuval Mintz tmp_index, sb_attn->index); 1104cc875c2eSYuval Mintz } 1105cc875c2eSYuval Mintz 1106fe56b9e6SYuval Mintz /* Check if we expect interrupts at this time. if not just ack them */ 1107fe56b9e6SYuval Mintz if (!(rc & QED_SB_EVENT_MASK)) { 1108fe56b9e6SYuval Mintz qed_sb_ack(sb_info, IGU_INT_ENABLE, 1); 1109fe56b9e6SYuval Mintz return; 1110fe56b9e6SYuval Mintz } 1111fe56b9e6SYuval Mintz 1112fe56b9e6SYuval Mintz /* Check the validity of the DPC ptt. If not ack interrupts and fail */ 1113fe56b9e6SYuval Mintz if (!p_hwfn->p_dpc_ptt) { 1114fe56b9e6SYuval Mintz DP_NOTICE(p_hwfn->cdev, "Failed to allocate PTT\n"); 1115fe56b9e6SYuval Mintz qed_sb_ack(sb_info, IGU_INT_ENABLE, 1); 1116fe56b9e6SYuval Mintz return; 1117fe56b9e6SYuval Mintz } 1118fe56b9e6SYuval Mintz 1119cc875c2eSYuval Mintz if (rc & QED_SB_ATT_IDX) 1120cc875c2eSYuval Mintz qed_int_attentions(p_hwfn); 1121cc875c2eSYuval Mintz 1122fe56b9e6SYuval Mintz if (rc & QED_SB_IDX) { 1123fe56b9e6SYuval Mintz int pi; 1124fe56b9e6SYuval Mintz 1125fe56b9e6SYuval Mintz /* Look for a free index */ 1126fe56b9e6SYuval Mintz for (pi = 0; pi < arr_size; pi++) { 1127fe56b9e6SYuval Mintz pi_info = &p_hwfn->p_sp_sb->pi_info_arr[pi]; 1128fe56b9e6SYuval Mintz if (pi_info->comp_cb) 1129fe56b9e6SYuval Mintz pi_info->comp_cb(p_hwfn, pi_info->cookie); 1130fe56b9e6SYuval Mintz } 1131fe56b9e6SYuval Mintz } 1132fe56b9e6SYuval Mintz 1133cc875c2eSYuval Mintz if (sb_attn && (rc & QED_SB_ATT_IDX)) 1134cc875c2eSYuval Mintz /* This should be done before the interrupts are enabled, 1135cc875c2eSYuval Mintz * since otherwise a new attention will be generated. 1136cc875c2eSYuval Mintz */ 1137cc875c2eSYuval Mintz qed_sb_ack_attn(p_hwfn, sb_info->igu_addr, sb_attn->index); 1138cc875c2eSYuval Mintz 1139fe56b9e6SYuval Mintz qed_sb_ack(sb_info, IGU_INT_ENABLE, 1); 1140fe56b9e6SYuval Mintz } 1141fe56b9e6SYuval Mintz 1142cc875c2eSYuval Mintz static void qed_int_sb_attn_free(struct qed_hwfn *p_hwfn) 1143cc875c2eSYuval Mintz { 1144cc875c2eSYuval Mintz struct qed_sb_attn_info *p_sb = p_hwfn->p_sb_attn; 1145cc875c2eSYuval Mintz 11464ac801b7SYuval Mintz if (!p_sb) 11474ac801b7SYuval Mintz return; 11484ac801b7SYuval Mintz 1149cc875c2eSYuval Mintz if (p_sb->sb_attn) 11504ac801b7SYuval Mintz dma_free_coherent(&p_hwfn->cdev->pdev->dev, 1151cc875c2eSYuval Mintz SB_ATTN_ALIGNED_SIZE(p_hwfn), 11521a635e48SYuval Mintz p_sb->sb_attn, p_sb->sb_phys); 1153cc875c2eSYuval Mintz kfree(p_sb); 11543587cb87STomer Tayar p_hwfn->p_sb_attn = NULL; 1155cc875c2eSYuval Mintz } 1156cc875c2eSYuval Mintz 1157cc875c2eSYuval Mintz static void qed_int_sb_attn_setup(struct qed_hwfn *p_hwfn, 1158cc875c2eSYuval Mintz struct qed_ptt *p_ptt) 1159cc875c2eSYuval Mintz { 1160cc875c2eSYuval Mintz struct qed_sb_attn_info *sb_info = p_hwfn->p_sb_attn; 1161cc875c2eSYuval Mintz 1162cc875c2eSYuval Mintz memset(sb_info->sb_attn, 0, sizeof(*sb_info->sb_attn)); 1163cc875c2eSYuval Mintz 1164cc875c2eSYuval Mintz sb_info->index = 0; 1165cc875c2eSYuval Mintz sb_info->known_attn = 0; 1166cc875c2eSYuval Mintz 1167cc875c2eSYuval Mintz /* Configure Attention Status Block in IGU */ 1168cc875c2eSYuval Mintz qed_wr(p_hwfn, p_ptt, IGU_REG_ATTN_MSG_ADDR_L, 1169cc875c2eSYuval Mintz lower_32_bits(p_hwfn->p_sb_attn->sb_phys)); 1170cc875c2eSYuval Mintz qed_wr(p_hwfn, p_ptt, IGU_REG_ATTN_MSG_ADDR_H, 1171cc875c2eSYuval Mintz upper_32_bits(p_hwfn->p_sb_attn->sb_phys)); 1172cc875c2eSYuval Mintz } 1173cc875c2eSYuval Mintz 1174cc875c2eSYuval Mintz static void qed_int_sb_attn_init(struct qed_hwfn *p_hwfn, 1175cc875c2eSYuval Mintz struct qed_ptt *p_ptt, 11761a635e48SYuval Mintz void *sb_virt_addr, dma_addr_t sb_phy_addr) 1177cc875c2eSYuval Mintz { 1178cc875c2eSYuval Mintz struct qed_sb_attn_info *sb_info = p_hwfn->p_sb_attn; 11790d956e8aSYuval Mintz int i, j, k; 1180cc875c2eSYuval Mintz 1181cc875c2eSYuval Mintz sb_info->sb_attn = sb_virt_addr; 1182cc875c2eSYuval Mintz sb_info->sb_phys = sb_phy_addr; 1183cc875c2eSYuval Mintz 11840d956e8aSYuval Mintz /* Set the pointer to the AEU descriptors */ 11850d956e8aSYuval Mintz sb_info->p_aeu_desc = aeu_descs; 11860d956e8aSYuval Mintz 11870d956e8aSYuval Mintz /* Calculate Parity Masks */ 11880d956e8aSYuval Mintz memset(sb_info->parity_mask, 0, sizeof(u32) * NUM_ATTN_REGS); 11890d956e8aSYuval Mintz for (i = 0; i < NUM_ATTN_REGS; i++) { 11900d956e8aSYuval Mintz /* j is array index, k is bit index */ 11910d956e8aSYuval Mintz for (j = 0, k = 0; k < 32; j++) { 1192ba36f718SMintz, Yuval struct aeu_invert_reg_bit *p_aeu; 11930d956e8aSYuval Mintz 1194ba36f718SMintz, Yuval p_aeu = &aeu_descs[i].bits[j]; 1195ba36f718SMintz, Yuval if (qed_int_is_parity_flag(p_hwfn, p_aeu)) 11960d956e8aSYuval Mintz sb_info->parity_mask[i] |= 1 << k; 11970d956e8aSYuval Mintz 1198ba36f718SMintz, Yuval k += ATTENTION_LENGTH(p_aeu->flags); 11990d956e8aSYuval Mintz } 12000d956e8aSYuval Mintz DP_VERBOSE(p_hwfn, NETIF_MSG_INTR, 12010d956e8aSYuval Mintz "Attn Mask [Reg %d]: 0x%08x\n", 12020d956e8aSYuval Mintz i, sb_info->parity_mask[i]); 12030d956e8aSYuval Mintz } 12040d956e8aSYuval Mintz 1205cc875c2eSYuval Mintz /* Set the address of cleanup for the mcp attention */ 1206cc875c2eSYuval Mintz sb_info->mfw_attn_addr = (p_hwfn->rel_pf_id << 3) + 1207cc875c2eSYuval Mintz MISC_REG_AEU_GENERAL_ATTN_0; 1208cc875c2eSYuval Mintz 1209cc875c2eSYuval Mintz qed_int_sb_attn_setup(p_hwfn, p_ptt); 1210cc875c2eSYuval Mintz } 1211cc875c2eSYuval Mintz 1212cc875c2eSYuval Mintz static int qed_int_sb_attn_alloc(struct qed_hwfn *p_hwfn, 1213cc875c2eSYuval Mintz struct qed_ptt *p_ptt) 1214cc875c2eSYuval Mintz { 1215cc875c2eSYuval Mintz struct qed_dev *cdev = p_hwfn->cdev; 1216cc875c2eSYuval Mintz struct qed_sb_attn_info *p_sb; 1217cc875c2eSYuval Mintz dma_addr_t p_phys = 0; 12181a635e48SYuval Mintz void *p_virt; 1219cc875c2eSYuval Mintz 1220cc875c2eSYuval Mintz /* SB struct */ 122160fffb3bSYuval Mintz p_sb = kmalloc(sizeof(*p_sb), GFP_KERNEL); 12222591c280SJoe Perches if (!p_sb) 1223cc875c2eSYuval Mintz return -ENOMEM; 1224cc875c2eSYuval Mintz 1225cc875c2eSYuval Mintz /* SB ring */ 1226cc875c2eSYuval Mintz p_virt = dma_alloc_coherent(&cdev->pdev->dev, 1227cc875c2eSYuval Mintz SB_ATTN_ALIGNED_SIZE(p_hwfn), 1228cc875c2eSYuval Mintz &p_phys, GFP_KERNEL); 1229cc875c2eSYuval Mintz 1230cc875c2eSYuval Mintz if (!p_virt) { 1231cc875c2eSYuval Mintz kfree(p_sb); 1232cc875c2eSYuval Mintz return -ENOMEM; 1233cc875c2eSYuval Mintz } 1234cc875c2eSYuval Mintz 1235cc875c2eSYuval Mintz /* Attention setup */ 1236cc875c2eSYuval Mintz p_hwfn->p_sb_attn = p_sb; 1237cc875c2eSYuval Mintz qed_int_sb_attn_init(p_hwfn, p_ptt, p_virt, p_phys); 1238cc875c2eSYuval Mintz 1239cc875c2eSYuval Mintz return 0; 1240cc875c2eSYuval Mintz } 1241cc875c2eSYuval Mintz 1242fe56b9e6SYuval Mintz /* coalescing timeout = timeset << (timer_res + 1) */ 1243fe56b9e6SYuval Mintz #define QED_CAU_DEF_RX_USECS 24 1244fe56b9e6SYuval Mintz #define QED_CAU_DEF_TX_USECS 48 1245fe56b9e6SYuval Mintz 1246fe56b9e6SYuval Mintz void qed_init_cau_sb_entry(struct qed_hwfn *p_hwfn, 1247fe56b9e6SYuval Mintz struct cau_sb_entry *p_sb_entry, 12481a635e48SYuval Mintz u8 pf_id, u16 vf_number, u8 vf_valid) 1249fe56b9e6SYuval Mintz { 12504ac801b7SYuval Mintz struct qed_dev *cdev = p_hwfn->cdev; 1251fe56b9e6SYuval Mintz u32 cau_state; 1252722003acSSudarsana Reddy Kalluru u8 timer_res; 1253fe56b9e6SYuval Mintz 1254fe56b9e6SYuval Mintz memset(p_sb_entry, 0, sizeof(*p_sb_entry)); 1255fe56b9e6SYuval Mintz 1256fe56b9e6SYuval Mintz SET_FIELD(p_sb_entry->params, CAU_SB_ENTRY_PF_NUMBER, pf_id); 1257fe56b9e6SYuval Mintz SET_FIELD(p_sb_entry->params, CAU_SB_ENTRY_VF_NUMBER, vf_number); 1258fe56b9e6SYuval Mintz SET_FIELD(p_sb_entry->params, CAU_SB_ENTRY_VF_VALID, vf_valid); 1259fe56b9e6SYuval Mintz SET_FIELD(p_sb_entry->params, CAU_SB_ENTRY_SB_TIMESET0, 0x7F); 1260fe56b9e6SYuval Mintz SET_FIELD(p_sb_entry->params, CAU_SB_ENTRY_SB_TIMESET1, 0x7F); 1261fe56b9e6SYuval Mintz 1262fe56b9e6SYuval Mintz cau_state = CAU_HC_DISABLE_STATE; 1263fe56b9e6SYuval Mintz 12644ac801b7SYuval Mintz if (cdev->int_coalescing_mode == QED_COAL_MODE_ENABLE) { 1265fe56b9e6SYuval Mintz cau_state = CAU_HC_ENABLE_STATE; 12664ac801b7SYuval Mintz if (!cdev->rx_coalesce_usecs) 12674ac801b7SYuval Mintz cdev->rx_coalesce_usecs = QED_CAU_DEF_RX_USECS; 12684ac801b7SYuval Mintz if (!cdev->tx_coalesce_usecs) 12694ac801b7SYuval Mintz cdev->tx_coalesce_usecs = QED_CAU_DEF_TX_USECS; 1270fe56b9e6SYuval Mintz } 1271fe56b9e6SYuval Mintz 1272722003acSSudarsana Reddy Kalluru /* Coalesce = (timeset << timer-res), timeset is 7bit wide */ 1273722003acSSudarsana Reddy Kalluru if (cdev->rx_coalesce_usecs <= 0x7F) 1274722003acSSudarsana Reddy Kalluru timer_res = 0; 1275722003acSSudarsana Reddy Kalluru else if (cdev->rx_coalesce_usecs <= 0xFF) 1276722003acSSudarsana Reddy Kalluru timer_res = 1; 1277722003acSSudarsana Reddy Kalluru else 1278722003acSSudarsana Reddy Kalluru timer_res = 2; 1279722003acSSudarsana Reddy Kalluru SET_FIELD(p_sb_entry->params, CAU_SB_ENTRY_TIMER_RES0, timer_res); 1280722003acSSudarsana Reddy Kalluru 1281722003acSSudarsana Reddy Kalluru if (cdev->tx_coalesce_usecs <= 0x7F) 1282722003acSSudarsana Reddy Kalluru timer_res = 0; 1283722003acSSudarsana Reddy Kalluru else if (cdev->tx_coalesce_usecs <= 0xFF) 1284722003acSSudarsana Reddy Kalluru timer_res = 1; 1285722003acSSudarsana Reddy Kalluru else 1286722003acSSudarsana Reddy Kalluru timer_res = 2; 1287722003acSSudarsana Reddy Kalluru SET_FIELD(p_sb_entry->params, CAU_SB_ENTRY_TIMER_RES1, timer_res); 1288722003acSSudarsana Reddy Kalluru 1289fe56b9e6SYuval Mintz SET_FIELD(p_sb_entry->data, CAU_SB_ENTRY_STATE0, cau_state); 1290fe56b9e6SYuval Mintz SET_FIELD(p_sb_entry->data, CAU_SB_ENTRY_STATE1, cau_state); 1291fe56b9e6SYuval Mintz } 1292fe56b9e6SYuval Mintz 1293fe56b9e6SYuval Mintz void qed_int_cau_conf_sb(struct qed_hwfn *p_hwfn, 1294fe56b9e6SYuval Mintz struct qed_ptt *p_ptt, 1295fe56b9e6SYuval Mintz dma_addr_t sb_phys, 12961a635e48SYuval Mintz u16 igu_sb_id, u16 vf_number, u8 vf_valid) 1297fe56b9e6SYuval Mintz { 1298fe56b9e6SYuval Mintz struct cau_sb_entry sb_entry; 1299fe56b9e6SYuval Mintz 1300fe56b9e6SYuval Mintz qed_init_cau_sb_entry(p_hwfn, &sb_entry, p_hwfn->rel_pf_id, 1301fe56b9e6SYuval Mintz vf_number, vf_valid); 1302fe56b9e6SYuval Mintz 1303fe56b9e6SYuval Mintz if (p_hwfn->hw_init_done) { 13040a0c5d3bSYuval Mintz /* Wide-bus, initialize via DMAE */ 13050a0c5d3bSYuval Mintz u64 phys_addr = (u64)sb_phys; 1306fe56b9e6SYuval Mintz 13070a0c5d3bSYuval Mintz qed_dmae_host2grc(p_hwfn, p_ptt, (u64)(uintptr_t)&phys_addr, 13080a0c5d3bSYuval Mintz CAU_REG_SB_ADDR_MEMORY + 13090a0c5d3bSYuval Mintz igu_sb_id * sizeof(u64), 2, 0); 13100a0c5d3bSYuval Mintz qed_dmae_host2grc(p_hwfn, p_ptt, (u64)(uintptr_t)&sb_entry, 13110a0c5d3bSYuval Mintz CAU_REG_SB_VAR_MEMORY + 13120a0c5d3bSYuval Mintz igu_sb_id * sizeof(u64), 2, 0); 1313fe56b9e6SYuval Mintz } else { 1314fe56b9e6SYuval Mintz /* Initialize Status Block Address */ 1315fe56b9e6SYuval Mintz STORE_RT_REG_AGG(p_hwfn, 1316fe56b9e6SYuval Mintz CAU_REG_SB_ADDR_MEMORY_RT_OFFSET + 1317fe56b9e6SYuval Mintz igu_sb_id * 2, 1318fe56b9e6SYuval Mintz sb_phys); 1319fe56b9e6SYuval Mintz 1320fe56b9e6SYuval Mintz STORE_RT_REG_AGG(p_hwfn, 1321fe56b9e6SYuval Mintz CAU_REG_SB_VAR_MEMORY_RT_OFFSET + 1322fe56b9e6SYuval Mintz igu_sb_id * 2, 1323fe56b9e6SYuval Mintz sb_entry); 1324fe56b9e6SYuval Mintz } 1325fe56b9e6SYuval Mintz 1326fe56b9e6SYuval Mintz /* Configure pi coalescing if set */ 1327fe56b9e6SYuval Mintz if (p_hwfn->cdev->int_coalescing_mode == QED_COAL_MODE_ENABLE) { 1328b5a9ee7cSAriel Elior u8 num_tc = p_hwfn->hw_info.num_hw_tc; 1329722003acSSudarsana Reddy Kalluru u8 timeset, timer_res; 1330b5a9ee7cSAriel Elior u8 i; 1331fe56b9e6SYuval Mintz 1332722003acSSudarsana Reddy Kalluru /* timeset = (coalesce >> timer-res), timeset is 7bit wide */ 1333722003acSSudarsana Reddy Kalluru if (p_hwfn->cdev->rx_coalesce_usecs <= 0x7F) 1334722003acSSudarsana Reddy Kalluru timer_res = 0; 1335722003acSSudarsana Reddy Kalluru else if (p_hwfn->cdev->rx_coalesce_usecs <= 0xFF) 1336722003acSSudarsana Reddy Kalluru timer_res = 1; 1337722003acSSudarsana Reddy Kalluru else 1338722003acSSudarsana Reddy Kalluru timer_res = 2; 1339722003acSSudarsana Reddy Kalluru timeset = (u8)(p_hwfn->cdev->rx_coalesce_usecs >> timer_res); 1340fe56b9e6SYuval Mintz qed_int_cau_conf_pi(p_hwfn, p_ptt, igu_sb_id, RX_PI, 13411a635e48SYuval Mintz QED_COAL_RX_STATE_MACHINE, timeset); 1342fe56b9e6SYuval Mintz 1343722003acSSudarsana Reddy Kalluru if (p_hwfn->cdev->tx_coalesce_usecs <= 0x7F) 1344722003acSSudarsana Reddy Kalluru timer_res = 0; 1345722003acSSudarsana Reddy Kalluru else if (p_hwfn->cdev->tx_coalesce_usecs <= 0xFF) 1346722003acSSudarsana Reddy Kalluru timer_res = 1; 1347722003acSSudarsana Reddy Kalluru else 1348722003acSSudarsana Reddy Kalluru timer_res = 2; 1349722003acSSudarsana Reddy Kalluru timeset = (u8)(p_hwfn->cdev->tx_coalesce_usecs >> timer_res); 1350fe56b9e6SYuval Mintz for (i = 0; i < num_tc; i++) { 1351fe56b9e6SYuval Mintz qed_int_cau_conf_pi(p_hwfn, p_ptt, 1352fe56b9e6SYuval Mintz igu_sb_id, TX_PI(i), 1353fe56b9e6SYuval Mintz QED_COAL_TX_STATE_MACHINE, 1354fe56b9e6SYuval Mintz timeset); 1355fe56b9e6SYuval Mintz } 1356fe56b9e6SYuval Mintz } 1357fe56b9e6SYuval Mintz } 1358fe56b9e6SYuval Mintz 1359fe56b9e6SYuval Mintz void qed_int_cau_conf_pi(struct qed_hwfn *p_hwfn, 1360fe56b9e6SYuval Mintz struct qed_ptt *p_ptt, 1361fe56b9e6SYuval Mintz u16 igu_sb_id, 1362fe56b9e6SYuval Mintz u32 pi_index, 1363fe56b9e6SYuval Mintz enum qed_coalescing_fsm coalescing_fsm, 1364fe56b9e6SYuval Mintz u8 timeset) 1365fe56b9e6SYuval Mintz { 1366fe56b9e6SYuval Mintz struct cau_pi_entry pi_entry; 13671a635e48SYuval Mintz u32 sb_offset, pi_offset; 1368fe56b9e6SYuval Mintz 13691408cc1fSYuval Mintz if (IS_VF(p_hwfn->cdev)) 13701408cc1fSYuval Mintz return; 13711408cc1fSYuval Mintz 1372fe56b9e6SYuval Mintz sb_offset = igu_sb_id * PIS_PER_SB; 1373fe56b9e6SYuval Mintz memset(&pi_entry, 0, sizeof(struct cau_pi_entry)); 1374fe56b9e6SYuval Mintz 1375fe56b9e6SYuval Mintz SET_FIELD(pi_entry.prod, CAU_PI_ENTRY_PI_TIMESET, timeset); 1376fe56b9e6SYuval Mintz if (coalescing_fsm == QED_COAL_RX_STATE_MACHINE) 1377fe56b9e6SYuval Mintz SET_FIELD(pi_entry.prod, CAU_PI_ENTRY_FSM_SEL, 0); 1378fe56b9e6SYuval Mintz else 1379fe56b9e6SYuval Mintz SET_FIELD(pi_entry.prod, CAU_PI_ENTRY_FSM_SEL, 1); 1380fe56b9e6SYuval Mintz 1381fe56b9e6SYuval Mintz pi_offset = sb_offset + pi_index; 1382fe56b9e6SYuval Mintz if (p_hwfn->hw_init_done) { 1383fe56b9e6SYuval Mintz qed_wr(p_hwfn, p_ptt, 1384fe56b9e6SYuval Mintz CAU_REG_PI_MEMORY + pi_offset * sizeof(u32), 1385fe56b9e6SYuval Mintz *((u32 *)&(pi_entry))); 1386fe56b9e6SYuval Mintz } else { 1387fe56b9e6SYuval Mintz STORE_RT_REG(p_hwfn, 1388fe56b9e6SYuval Mintz CAU_REG_PI_MEMORY_RT_OFFSET + pi_offset, 1389fe56b9e6SYuval Mintz *((u32 *)&(pi_entry))); 1390fe56b9e6SYuval Mintz } 1391fe56b9e6SYuval Mintz } 1392fe56b9e6SYuval Mintz 1393fe56b9e6SYuval Mintz void qed_int_sb_setup(struct qed_hwfn *p_hwfn, 13941a635e48SYuval Mintz struct qed_ptt *p_ptt, struct qed_sb_info *sb_info) 1395fe56b9e6SYuval Mintz { 1396fe56b9e6SYuval Mintz /* zero status block and ack counter */ 1397fe56b9e6SYuval Mintz sb_info->sb_ack = 0; 1398fe56b9e6SYuval Mintz memset(sb_info->sb_virt, 0, sizeof(*sb_info->sb_virt)); 1399fe56b9e6SYuval Mintz 14001408cc1fSYuval Mintz if (IS_PF(p_hwfn->cdev)) 1401fe56b9e6SYuval Mintz qed_int_cau_conf_sb(p_hwfn, p_ptt, sb_info->sb_phys, 1402fe56b9e6SYuval Mintz sb_info->igu_sb_id, 0, 0); 1403fe56b9e6SYuval Mintz } 1404fe56b9e6SYuval Mintz 1405fe56b9e6SYuval Mintz /** 1406fe56b9e6SYuval Mintz * @brief qed_get_igu_sb_id - given a sw sb_id return the 1407fe56b9e6SYuval Mintz * igu_sb_id 1408fe56b9e6SYuval Mintz * 1409fe56b9e6SYuval Mintz * @param p_hwfn 1410fe56b9e6SYuval Mintz * @param sb_id 1411fe56b9e6SYuval Mintz * 1412fe56b9e6SYuval Mintz * @return u16 1413fe56b9e6SYuval Mintz */ 14141a635e48SYuval Mintz static u16 qed_get_igu_sb_id(struct qed_hwfn *p_hwfn, u16 sb_id) 1415fe56b9e6SYuval Mintz { 1416fe56b9e6SYuval Mintz u16 igu_sb_id; 1417fe56b9e6SYuval Mintz 1418fe56b9e6SYuval Mintz /* Assuming continuous set of IGU SBs dedicated for given PF */ 1419fe56b9e6SYuval Mintz if (sb_id == QED_SP_SB_ID) 1420fe56b9e6SYuval Mintz igu_sb_id = p_hwfn->hw_info.p_igu_info->igu_dsb_id; 14211408cc1fSYuval Mintz else if (IS_PF(p_hwfn->cdev)) 1422fe56b9e6SYuval Mintz igu_sb_id = sb_id + p_hwfn->hw_info.p_igu_info->igu_base_sb; 14231408cc1fSYuval Mintz else 14241408cc1fSYuval Mintz igu_sb_id = qed_vf_get_igu_sb_id(p_hwfn, sb_id); 1425fe56b9e6SYuval Mintz 1426525ef5c0SYuval Mintz if (sb_id == QED_SP_SB_ID) 1427525ef5c0SYuval Mintz DP_VERBOSE(p_hwfn, NETIF_MSG_INTR, 1428525ef5c0SYuval Mintz "Slowpath SB index in IGU is 0x%04x\n", igu_sb_id); 1429525ef5c0SYuval Mintz else 1430525ef5c0SYuval Mintz DP_VERBOSE(p_hwfn, NETIF_MSG_INTR, 1431525ef5c0SYuval Mintz "SB [%04x] <--> IGU SB [%04x]\n", sb_id, igu_sb_id); 1432fe56b9e6SYuval Mintz 1433fe56b9e6SYuval Mintz return igu_sb_id; 1434fe56b9e6SYuval Mintz } 1435fe56b9e6SYuval Mintz 1436fe56b9e6SYuval Mintz int qed_int_sb_init(struct qed_hwfn *p_hwfn, 1437fe56b9e6SYuval Mintz struct qed_ptt *p_ptt, 1438fe56b9e6SYuval Mintz struct qed_sb_info *sb_info, 14391a635e48SYuval Mintz void *sb_virt_addr, dma_addr_t sb_phy_addr, u16 sb_id) 1440fe56b9e6SYuval Mintz { 1441fe56b9e6SYuval Mintz sb_info->sb_virt = sb_virt_addr; 1442fe56b9e6SYuval Mintz sb_info->sb_phys = sb_phy_addr; 1443fe56b9e6SYuval Mintz 1444fe56b9e6SYuval Mintz sb_info->igu_sb_id = qed_get_igu_sb_id(p_hwfn, sb_id); 1445fe56b9e6SYuval Mintz 1446fe56b9e6SYuval Mintz if (sb_id != QED_SP_SB_ID) { 1447fe56b9e6SYuval Mintz p_hwfn->sbs_info[sb_id] = sb_info; 1448fe56b9e6SYuval Mintz p_hwfn->num_sbs++; 1449fe56b9e6SYuval Mintz } 1450fe56b9e6SYuval Mintz 1451fe56b9e6SYuval Mintz sb_info->cdev = p_hwfn->cdev; 1452fe56b9e6SYuval Mintz 1453fe56b9e6SYuval Mintz /* The igu address will hold the absolute address that needs to be 1454fe56b9e6SYuval Mintz * written to for a specific status block 1455fe56b9e6SYuval Mintz */ 14561408cc1fSYuval Mintz if (IS_PF(p_hwfn->cdev)) { 1457fe56b9e6SYuval Mintz sb_info->igu_addr = (u8 __iomem *)p_hwfn->regview + 1458fe56b9e6SYuval Mintz GTT_BAR0_MAP_REG_IGU_CMD + 1459fe56b9e6SYuval Mintz (sb_info->igu_sb_id << 3); 14601408cc1fSYuval Mintz } else { 14611408cc1fSYuval Mintz sb_info->igu_addr = (u8 __iomem *)p_hwfn->regview + 14621408cc1fSYuval Mintz PXP_VF_BAR0_START_IGU + 14631408cc1fSYuval Mintz ((IGU_CMD_INT_ACK_BASE + 14641408cc1fSYuval Mintz sb_info->igu_sb_id) << 3); 14651408cc1fSYuval Mintz } 1466fe56b9e6SYuval Mintz 1467fe56b9e6SYuval Mintz sb_info->flags |= QED_SB_INFO_INIT; 1468fe56b9e6SYuval Mintz 1469fe56b9e6SYuval Mintz qed_int_sb_setup(p_hwfn, p_ptt, sb_info); 1470fe56b9e6SYuval Mintz 1471fe56b9e6SYuval Mintz return 0; 1472fe56b9e6SYuval Mintz } 1473fe56b9e6SYuval Mintz 1474fe56b9e6SYuval Mintz int qed_int_sb_release(struct qed_hwfn *p_hwfn, 14751a635e48SYuval Mintz struct qed_sb_info *sb_info, u16 sb_id) 1476fe56b9e6SYuval Mintz { 1477fe56b9e6SYuval Mintz if (sb_id == QED_SP_SB_ID) { 1478fe56b9e6SYuval Mintz DP_ERR(p_hwfn, "Do Not free sp sb using this function"); 1479fe56b9e6SYuval Mintz return -EINVAL; 1480fe56b9e6SYuval Mintz } 1481fe56b9e6SYuval Mintz 1482fe56b9e6SYuval Mintz /* zero status block and ack counter */ 1483fe56b9e6SYuval Mintz sb_info->sb_ack = 0; 1484fe56b9e6SYuval Mintz memset(sb_info->sb_virt, 0, sizeof(*sb_info->sb_virt)); 1485fe56b9e6SYuval Mintz 14864ac801b7SYuval Mintz if (p_hwfn->sbs_info[sb_id] != NULL) { 1487fe56b9e6SYuval Mintz p_hwfn->sbs_info[sb_id] = NULL; 1488fe56b9e6SYuval Mintz p_hwfn->num_sbs--; 14894ac801b7SYuval Mintz } 1490fe56b9e6SYuval Mintz 1491fe56b9e6SYuval Mintz return 0; 1492fe56b9e6SYuval Mintz } 1493fe56b9e6SYuval Mintz 1494fe56b9e6SYuval Mintz static void qed_int_sp_sb_free(struct qed_hwfn *p_hwfn) 1495fe56b9e6SYuval Mintz { 1496fe56b9e6SYuval Mintz struct qed_sb_sp_info *p_sb = p_hwfn->p_sp_sb; 1497fe56b9e6SYuval Mintz 14984ac801b7SYuval Mintz if (!p_sb) 14994ac801b7SYuval Mintz return; 15004ac801b7SYuval Mintz 1501fe56b9e6SYuval Mintz if (p_sb->sb_info.sb_virt) 1502fe56b9e6SYuval Mintz dma_free_coherent(&p_hwfn->cdev->pdev->dev, 1503fe56b9e6SYuval Mintz SB_ALIGNED_SIZE(p_hwfn), 1504fe56b9e6SYuval Mintz p_sb->sb_info.sb_virt, 1505fe56b9e6SYuval Mintz p_sb->sb_info.sb_phys); 1506fe56b9e6SYuval Mintz kfree(p_sb); 15073587cb87STomer Tayar p_hwfn->p_sp_sb = NULL; 1508fe56b9e6SYuval Mintz } 1509fe56b9e6SYuval Mintz 15101a635e48SYuval Mintz static int qed_int_sp_sb_alloc(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) 1511fe56b9e6SYuval Mintz { 1512fe56b9e6SYuval Mintz struct qed_sb_sp_info *p_sb; 1513fe56b9e6SYuval Mintz dma_addr_t p_phys = 0; 1514fe56b9e6SYuval Mintz void *p_virt; 1515fe56b9e6SYuval Mintz 1516fe56b9e6SYuval Mintz /* SB struct */ 151760fffb3bSYuval Mintz p_sb = kmalloc(sizeof(*p_sb), GFP_KERNEL); 15182591c280SJoe Perches if (!p_sb) 1519fe56b9e6SYuval Mintz return -ENOMEM; 1520fe56b9e6SYuval Mintz 1521fe56b9e6SYuval Mintz /* SB ring */ 1522fe56b9e6SYuval Mintz p_virt = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, 1523fe56b9e6SYuval Mintz SB_ALIGNED_SIZE(p_hwfn), 1524fe56b9e6SYuval Mintz &p_phys, GFP_KERNEL); 1525fe56b9e6SYuval Mintz if (!p_virt) { 1526fe56b9e6SYuval Mintz kfree(p_sb); 1527fe56b9e6SYuval Mintz return -ENOMEM; 1528fe56b9e6SYuval Mintz } 1529fe56b9e6SYuval Mintz 1530fe56b9e6SYuval Mintz /* Status Block setup */ 1531fe56b9e6SYuval Mintz p_hwfn->p_sp_sb = p_sb; 1532fe56b9e6SYuval Mintz qed_int_sb_init(p_hwfn, p_ptt, &p_sb->sb_info, p_virt, 1533fe56b9e6SYuval Mintz p_phys, QED_SP_SB_ID); 1534fe56b9e6SYuval Mintz 1535fe56b9e6SYuval Mintz memset(p_sb->pi_info_arr, 0, sizeof(p_sb->pi_info_arr)); 1536fe56b9e6SYuval Mintz 1537fe56b9e6SYuval Mintz return 0; 1538fe56b9e6SYuval Mintz } 1539fe56b9e6SYuval Mintz 1540fe56b9e6SYuval Mintz int qed_int_register_cb(struct qed_hwfn *p_hwfn, 1541fe56b9e6SYuval Mintz qed_int_comp_cb_t comp_cb, 15421a635e48SYuval Mintz void *cookie, u8 *sb_idx, __le16 **p_fw_cons) 1543fe56b9e6SYuval Mintz { 1544fe56b9e6SYuval Mintz struct qed_sb_sp_info *p_sp_sb = p_hwfn->p_sp_sb; 15454ac801b7SYuval Mintz int rc = -ENOMEM; 1546fe56b9e6SYuval Mintz u8 pi; 1547fe56b9e6SYuval Mintz 1548fe56b9e6SYuval Mintz /* Look for a free index */ 1549fe56b9e6SYuval Mintz for (pi = 0; pi < ARRAY_SIZE(p_sp_sb->pi_info_arr); pi++) { 15504ac801b7SYuval Mintz if (p_sp_sb->pi_info_arr[pi].comp_cb) 15514ac801b7SYuval Mintz continue; 15524ac801b7SYuval Mintz 1553fe56b9e6SYuval Mintz p_sp_sb->pi_info_arr[pi].comp_cb = comp_cb; 1554fe56b9e6SYuval Mintz p_sp_sb->pi_info_arr[pi].cookie = cookie; 1555fe56b9e6SYuval Mintz *sb_idx = pi; 1556fe56b9e6SYuval Mintz *p_fw_cons = &p_sp_sb->sb_info.sb_virt->pi_array[pi]; 15574ac801b7SYuval Mintz rc = 0; 1558fe56b9e6SYuval Mintz break; 1559fe56b9e6SYuval Mintz } 1560fe56b9e6SYuval Mintz 15614ac801b7SYuval Mintz return rc; 1562fe56b9e6SYuval Mintz } 1563fe56b9e6SYuval Mintz 1564fe56b9e6SYuval Mintz int qed_int_unregister_cb(struct qed_hwfn *p_hwfn, u8 pi) 1565fe56b9e6SYuval Mintz { 1566fe56b9e6SYuval Mintz struct qed_sb_sp_info *p_sp_sb = p_hwfn->p_sp_sb; 1567fe56b9e6SYuval Mintz 15684ac801b7SYuval Mintz if (p_sp_sb->pi_info_arr[pi].comp_cb == NULL) 15694ac801b7SYuval Mintz return -ENOMEM; 15704ac801b7SYuval Mintz 1571fe56b9e6SYuval Mintz p_sp_sb->pi_info_arr[pi].comp_cb = NULL; 1572fe56b9e6SYuval Mintz p_sp_sb->pi_info_arr[pi].cookie = NULL; 1573fe56b9e6SYuval Mintz 15744ac801b7SYuval Mintz return 0; 1575fe56b9e6SYuval Mintz } 1576fe56b9e6SYuval Mintz 1577fe56b9e6SYuval Mintz u16 qed_int_get_sp_sb_id(struct qed_hwfn *p_hwfn) 1578fe56b9e6SYuval Mintz { 1579fe56b9e6SYuval Mintz return p_hwfn->p_sp_sb->sb_info.igu_sb_id; 1580fe56b9e6SYuval Mintz } 1581fe56b9e6SYuval Mintz 1582fe56b9e6SYuval Mintz void qed_int_igu_enable_int(struct qed_hwfn *p_hwfn, 15831a635e48SYuval Mintz struct qed_ptt *p_ptt, enum qed_int_mode int_mode) 1584fe56b9e6SYuval Mintz { 1585cc875c2eSYuval Mintz u32 igu_pf_conf = IGU_PF_CONF_FUNC_EN | IGU_PF_CONF_ATTN_BIT_EN; 1586fe56b9e6SYuval Mintz 1587fe56b9e6SYuval Mintz p_hwfn->cdev->int_mode = int_mode; 1588fe56b9e6SYuval Mintz switch (p_hwfn->cdev->int_mode) { 1589fe56b9e6SYuval Mintz case QED_INT_MODE_INTA: 1590fe56b9e6SYuval Mintz igu_pf_conf |= IGU_PF_CONF_INT_LINE_EN; 1591fe56b9e6SYuval Mintz igu_pf_conf |= IGU_PF_CONF_SINGLE_ISR_EN; 1592fe56b9e6SYuval Mintz break; 1593fe56b9e6SYuval Mintz 1594fe56b9e6SYuval Mintz case QED_INT_MODE_MSI: 1595fe56b9e6SYuval Mintz igu_pf_conf |= IGU_PF_CONF_MSI_MSIX_EN; 1596fe56b9e6SYuval Mintz igu_pf_conf |= IGU_PF_CONF_SINGLE_ISR_EN; 1597fe56b9e6SYuval Mintz break; 1598fe56b9e6SYuval Mintz 1599fe56b9e6SYuval Mintz case QED_INT_MODE_MSIX: 1600fe56b9e6SYuval Mintz igu_pf_conf |= IGU_PF_CONF_MSI_MSIX_EN; 1601fe56b9e6SYuval Mintz break; 1602fe56b9e6SYuval Mintz case QED_INT_MODE_POLL: 1603fe56b9e6SYuval Mintz break; 1604fe56b9e6SYuval Mintz } 1605fe56b9e6SYuval Mintz 1606fe56b9e6SYuval Mintz qed_wr(p_hwfn, p_ptt, IGU_REG_PF_CONFIGURATION, igu_pf_conf); 1607fe56b9e6SYuval Mintz } 1608fe56b9e6SYuval Mintz 16098f16bc97SSudarsana Kalluru int qed_int_igu_enable(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, 1610fe56b9e6SYuval Mintz enum qed_int_mode int_mode) 1611fe56b9e6SYuval Mintz { 1612fea24857SColin Ian King int rc = 0; 1613fe56b9e6SYuval Mintz 16140d956e8aSYuval Mintz /* Configure AEU signal change to produce attentions */ 16150d956e8aSYuval Mintz qed_wr(p_hwfn, p_ptt, IGU_REG_ATTENTION_ENABLE, 0); 1616cc875c2eSYuval Mintz qed_wr(p_hwfn, p_ptt, IGU_REG_LEADING_EDGE_LATCH, 0xfff); 1617cc875c2eSYuval Mintz qed_wr(p_hwfn, p_ptt, IGU_REG_TRAILING_EDGE_LATCH, 0xfff); 16180d956e8aSYuval Mintz qed_wr(p_hwfn, p_ptt, IGU_REG_ATTENTION_ENABLE, 0xfff); 1619cc875c2eSYuval Mintz 1620fe56b9e6SYuval Mintz /* Flush the writes to IGU */ 1621fe56b9e6SYuval Mintz mmiowb(); 1622cc875c2eSYuval Mintz 1623cc875c2eSYuval Mintz /* Unmask AEU signals toward IGU */ 1624cc875c2eSYuval Mintz qed_wr(p_hwfn, p_ptt, MISC_REG_AEU_MASK_ATTN_IGU, 0xff); 16258f16bc97SSudarsana Kalluru if ((int_mode != QED_INT_MODE_INTA) || IS_LEAD_HWFN(p_hwfn)) { 16268f16bc97SSudarsana Kalluru rc = qed_slowpath_irq_req(p_hwfn); 16271a635e48SYuval Mintz if (rc) { 16288f16bc97SSudarsana Kalluru DP_NOTICE(p_hwfn, "Slowpath IRQ request failed\n"); 16298f16bc97SSudarsana Kalluru return -EINVAL; 16308f16bc97SSudarsana Kalluru } 16318f16bc97SSudarsana Kalluru p_hwfn->b_int_requested = true; 16328f16bc97SSudarsana Kalluru } 16338f16bc97SSudarsana Kalluru /* Enable interrupt Generation */ 16348f16bc97SSudarsana Kalluru qed_int_igu_enable_int(p_hwfn, p_ptt, int_mode); 16358f16bc97SSudarsana Kalluru p_hwfn->b_int_enabled = 1; 16368f16bc97SSudarsana Kalluru 16378f16bc97SSudarsana Kalluru return rc; 1638fe56b9e6SYuval Mintz } 1639fe56b9e6SYuval Mintz 16401a635e48SYuval Mintz void qed_int_igu_disable_int(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) 1641fe56b9e6SYuval Mintz { 1642fe56b9e6SYuval Mintz p_hwfn->b_int_enabled = 0; 1643fe56b9e6SYuval Mintz 16441408cc1fSYuval Mintz if (IS_VF(p_hwfn->cdev)) 16451408cc1fSYuval Mintz return; 16461408cc1fSYuval Mintz 1647fe56b9e6SYuval Mintz qed_wr(p_hwfn, p_ptt, IGU_REG_PF_CONFIGURATION, 0); 1648fe56b9e6SYuval Mintz } 1649fe56b9e6SYuval Mintz 1650fe56b9e6SYuval Mintz #define IGU_CLEANUP_SLEEP_LENGTH (1000) 1651b2b897ebSYuval Mintz static void qed_int_igu_cleanup_sb(struct qed_hwfn *p_hwfn, 1652fe56b9e6SYuval Mintz struct qed_ptt *p_ptt, 1653b2b897ebSYuval Mintz u32 sb_id, bool cleanup_set, u16 opaque_fid) 1654fe56b9e6SYuval Mintz { 1655b2b897ebSYuval Mintz u32 cmd_ctrl = 0, val = 0, sb_bit = 0, sb_bit_addr = 0, data = 0; 1656fe56b9e6SYuval Mintz u32 pxp_addr = IGU_CMD_INT_ACK_BASE + sb_id; 1657fe56b9e6SYuval Mintz u32 sleep_cnt = IGU_CLEANUP_SLEEP_LENGTH; 1658fe56b9e6SYuval Mintz 1659fe56b9e6SYuval Mintz /* Set the data field */ 1660fe56b9e6SYuval Mintz SET_FIELD(data, IGU_CLEANUP_CLEANUP_SET, cleanup_set ? 1 : 0); 1661fe56b9e6SYuval Mintz SET_FIELD(data, IGU_CLEANUP_CLEANUP_TYPE, 0); 1662fe56b9e6SYuval Mintz SET_FIELD(data, IGU_CLEANUP_COMMAND_TYPE, IGU_COMMAND_TYPE_SET); 1663fe56b9e6SYuval Mintz 1664fe56b9e6SYuval Mintz /* Set the control register */ 1665fe56b9e6SYuval Mintz SET_FIELD(cmd_ctrl, IGU_CTRL_REG_PXP_ADDR, pxp_addr); 1666fe56b9e6SYuval Mintz SET_FIELD(cmd_ctrl, IGU_CTRL_REG_FID, opaque_fid); 1667fe56b9e6SYuval Mintz SET_FIELD(cmd_ctrl, IGU_CTRL_REG_TYPE, IGU_CTRL_CMD_TYPE_WR); 1668fe56b9e6SYuval Mintz 1669fe56b9e6SYuval Mintz qed_wr(p_hwfn, p_ptt, IGU_REG_COMMAND_REG_32LSB_DATA, data); 1670fe56b9e6SYuval Mintz 1671fe56b9e6SYuval Mintz barrier(); 1672fe56b9e6SYuval Mintz 1673fe56b9e6SYuval Mintz qed_wr(p_hwfn, p_ptt, IGU_REG_COMMAND_REG_CTRL, cmd_ctrl); 1674fe56b9e6SYuval Mintz 1675fe56b9e6SYuval Mintz /* Flush the write to IGU */ 1676fe56b9e6SYuval Mintz mmiowb(); 1677fe56b9e6SYuval Mintz 1678fe56b9e6SYuval Mintz /* calculate where to read the status bit from */ 1679fe56b9e6SYuval Mintz sb_bit = 1 << (sb_id % 32); 1680fe56b9e6SYuval Mintz sb_bit_addr = sb_id / 32 * sizeof(u32); 1681fe56b9e6SYuval Mintz 1682fe56b9e6SYuval Mintz sb_bit_addr += IGU_REG_CLEANUP_STATUS_0; 1683fe56b9e6SYuval Mintz 1684fe56b9e6SYuval Mintz /* Now wait for the command to complete */ 1685fe56b9e6SYuval Mintz do { 1686fe56b9e6SYuval Mintz val = qed_rd(p_hwfn, p_ptt, sb_bit_addr); 1687fe56b9e6SYuval Mintz 1688fe56b9e6SYuval Mintz if ((val & sb_bit) == (cleanup_set ? sb_bit : 0)) 1689fe56b9e6SYuval Mintz break; 1690fe56b9e6SYuval Mintz 1691fe56b9e6SYuval Mintz usleep_range(5000, 10000); 1692fe56b9e6SYuval Mintz } while (--sleep_cnt); 1693fe56b9e6SYuval Mintz 1694fe56b9e6SYuval Mintz if (!sleep_cnt) 1695fe56b9e6SYuval Mintz DP_NOTICE(p_hwfn, 1696fe56b9e6SYuval Mintz "Timeout waiting for clear status 0x%08x [for sb %d]\n", 1697fe56b9e6SYuval Mintz val, sb_id); 1698fe56b9e6SYuval Mintz } 1699fe56b9e6SYuval Mintz 1700fe56b9e6SYuval Mintz void qed_int_igu_init_pure_rt_single(struct qed_hwfn *p_hwfn, 1701fe56b9e6SYuval Mintz struct qed_ptt *p_ptt, 1702b2b897ebSYuval Mintz u32 sb_id, u16 opaque, bool b_set) 1703fe56b9e6SYuval Mintz { 1704b2b897ebSYuval Mintz int pi, i; 1705fe56b9e6SYuval Mintz 1706fe56b9e6SYuval Mintz /* Set */ 1707fe56b9e6SYuval Mintz if (b_set) 1708fe56b9e6SYuval Mintz qed_int_igu_cleanup_sb(p_hwfn, p_ptt, sb_id, 1, opaque); 1709fe56b9e6SYuval Mintz 1710fe56b9e6SYuval Mintz /* Clear */ 1711fe56b9e6SYuval Mintz qed_int_igu_cleanup_sb(p_hwfn, p_ptt, sb_id, 0, opaque); 1712fe56b9e6SYuval Mintz 1713b2b897ebSYuval Mintz /* Wait for the IGU SB to cleanup */ 1714b2b897ebSYuval Mintz for (i = 0; i < IGU_CLEANUP_SLEEP_LENGTH; i++) { 1715b2b897ebSYuval Mintz u32 val; 1716b2b897ebSYuval Mintz 1717b2b897ebSYuval Mintz val = qed_rd(p_hwfn, p_ptt, 1718b2b897ebSYuval Mintz IGU_REG_WRITE_DONE_PENDING + ((sb_id / 32) * 4)); 1719b2b897ebSYuval Mintz if (val & (1 << (sb_id % 32))) 1720b2b897ebSYuval Mintz usleep_range(10, 20); 1721b2b897ebSYuval Mintz else 1722b2b897ebSYuval Mintz break; 1723b2b897ebSYuval Mintz } 1724b2b897ebSYuval Mintz if (i == IGU_CLEANUP_SLEEP_LENGTH) 1725b2b897ebSYuval Mintz DP_NOTICE(p_hwfn, 1726b2b897ebSYuval Mintz "Failed SB[0x%08x] still appearing in WRITE_DONE_PENDING\n", 1727b2b897ebSYuval Mintz sb_id); 1728b2b897ebSYuval Mintz 1729fe56b9e6SYuval Mintz /* Clear the CAU for the SB */ 1730fe56b9e6SYuval Mintz for (pi = 0; pi < 12; pi++) 1731fe56b9e6SYuval Mintz qed_wr(p_hwfn, p_ptt, 1732fe56b9e6SYuval Mintz CAU_REG_PI_MEMORY + (sb_id * 12 + pi) * 4, 0); 1733fe56b9e6SYuval Mintz } 1734fe56b9e6SYuval Mintz 1735fe56b9e6SYuval Mintz void qed_int_igu_init_pure_rt(struct qed_hwfn *p_hwfn, 1736fe56b9e6SYuval Mintz struct qed_ptt *p_ptt, 1737b2b897ebSYuval Mintz bool b_set, bool b_slowpath) 1738fe56b9e6SYuval Mintz { 1739fe56b9e6SYuval Mintz u32 igu_base_sb = p_hwfn->hw_info.p_igu_info->igu_base_sb; 1740fe56b9e6SYuval Mintz u32 igu_sb_cnt = p_hwfn->hw_info.p_igu_info->igu_sb_cnt; 1741b2b897ebSYuval Mintz u32 sb_id = 0, val = 0; 1742fe56b9e6SYuval Mintz 1743fe56b9e6SYuval Mintz val = qed_rd(p_hwfn, p_ptt, IGU_REG_BLOCK_CONFIGURATION); 1744fe56b9e6SYuval Mintz val |= IGU_REG_BLOCK_CONFIGURATION_VF_CLEANUP_EN; 1745fe56b9e6SYuval Mintz val &= ~IGU_REG_BLOCK_CONFIGURATION_PXP_TPH_INTERFACE_EN; 1746fe56b9e6SYuval Mintz qed_wr(p_hwfn, p_ptt, IGU_REG_BLOCK_CONFIGURATION, val); 1747fe56b9e6SYuval Mintz 1748fe56b9e6SYuval Mintz DP_VERBOSE(p_hwfn, NETIF_MSG_INTR, 1749fe56b9e6SYuval Mintz "IGU cleaning SBs [%d,...,%d]\n", 1750fe56b9e6SYuval Mintz igu_base_sb, igu_base_sb + igu_sb_cnt - 1); 1751fe56b9e6SYuval Mintz 1752fe56b9e6SYuval Mintz for (sb_id = igu_base_sb; sb_id < igu_base_sb + igu_sb_cnt; sb_id++) 1753fe56b9e6SYuval Mintz qed_int_igu_init_pure_rt_single(p_hwfn, p_ptt, sb_id, 1754fe56b9e6SYuval Mintz p_hwfn->hw_info.opaque_fid, 1755fe56b9e6SYuval Mintz b_set); 1756fe56b9e6SYuval Mintz 1757b2b897ebSYuval Mintz if (!b_slowpath) 1758b2b897ebSYuval Mintz return; 1759b2b897ebSYuval Mintz 1760fe56b9e6SYuval Mintz sb_id = p_hwfn->hw_info.p_igu_info->igu_dsb_id; 1761fe56b9e6SYuval Mintz DP_VERBOSE(p_hwfn, NETIF_MSG_INTR, 1762fe56b9e6SYuval Mintz "IGU cleaning slowpath SB [%d]\n", sb_id); 1763fe56b9e6SYuval Mintz qed_int_igu_init_pure_rt_single(p_hwfn, p_ptt, sb_id, 1764b2b897ebSYuval Mintz p_hwfn->hw_info.opaque_fid, b_set); 1765fe56b9e6SYuval Mintz } 1766fe56b9e6SYuval Mintz 17674ac801b7SYuval Mintz static u32 qed_int_igu_read_cam_block(struct qed_hwfn *p_hwfn, 17681a635e48SYuval Mintz struct qed_ptt *p_ptt, u16 sb_id) 17694ac801b7SYuval Mintz { 17704ac801b7SYuval Mintz u32 val = qed_rd(p_hwfn, p_ptt, 17711a635e48SYuval Mintz IGU_REG_MAPPING_MEMORY + sizeof(u32) * sb_id); 17724ac801b7SYuval Mintz struct qed_igu_block *p_block; 17734ac801b7SYuval Mintz 17744ac801b7SYuval Mintz p_block = &p_hwfn->hw_info.p_igu_info->igu_map.igu_blocks[sb_id]; 17754ac801b7SYuval Mintz 17764ac801b7SYuval Mintz /* stop scanning when hit first invalid PF entry */ 17774ac801b7SYuval Mintz if (!GET_FIELD(val, IGU_MAPPING_LINE_VALID) && 17784ac801b7SYuval Mintz GET_FIELD(val, IGU_MAPPING_LINE_PF_VALID)) 17794ac801b7SYuval Mintz goto out; 17804ac801b7SYuval Mintz 17814ac801b7SYuval Mintz /* Fill the block information */ 17824ac801b7SYuval Mintz p_block->status = QED_IGU_STATUS_VALID; 17834ac801b7SYuval Mintz p_block->function_id = GET_FIELD(val, 17844ac801b7SYuval Mintz IGU_MAPPING_LINE_FUNCTION_NUMBER); 17854ac801b7SYuval Mintz p_block->is_pf = GET_FIELD(val, IGU_MAPPING_LINE_PF_VALID); 17864ac801b7SYuval Mintz p_block->vector_number = GET_FIELD(val, 17874ac801b7SYuval Mintz IGU_MAPPING_LINE_VECTOR_NUMBER); 17884ac801b7SYuval Mintz 17894ac801b7SYuval Mintz DP_VERBOSE(p_hwfn, NETIF_MSG_INTR, 17904ac801b7SYuval Mintz "IGU_BLOCK: [SB 0x%04x, Value in CAM 0x%08x] func_id = %d is_pf = %d vector_num = 0x%x\n", 17914ac801b7SYuval Mintz sb_id, val, p_block->function_id, 17924ac801b7SYuval Mintz p_block->is_pf, p_block->vector_number); 17934ac801b7SYuval Mintz 17944ac801b7SYuval Mintz out: 17954ac801b7SYuval Mintz return val; 17964ac801b7SYuval Mintz } 17974ac801b7SYuval Mintz 17981a635e48SYuval Mintz int qed_int_igu_read_cam(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) 1799fe56b9e6SYuval Mintz { 1800fe56b9e6SYuval Mintz struct qed_igu_info *p_igu_info; 18011408cc1fSYuval Mintz u32 val, min_vf = 0, max_vf = 0; 18021408cc1fSYuval Mintz u16 sb_id, last_iov_sb_id = 0; 1803fe56b9e6SYuval Mintz struct qed_igu_block *blk; 1804fe56b9e6SYuval Mintz u16 prev_sb_id = 0xFF; 1805fe56b9e6SYuval Mintz 180660fffb3bSYuval Mintz p_hwfn->hw_info.p_igu_info = kzalloc(sizeof(*p_igu_info), GFP_KERNEL); 1807fe56b9e6SYuval Mintz if (!p_hwfn->hw_info.p_igu_info) 1808fe56b9e6SYuval Mintz return -ENOMEM; 1809fe56b9e6SYuval Mintz 1810fe56b9e6SYuval Mintz p_igu_info = p_hwfn->hw_info.p_igu_info; 1811fe56b9e6SYuval Mintz 18121408cc1fSYuval Mintz /* Initialize base sb / sb cnt for PFs and VFs */ 1813fe56b9e6SYuval Mintz p_igu_info->igu_base_sb = 0xffff; 1814fe56b9e6SYuval Mintz p_igu_info->igu_sb_cnt = 0; 1815fe56b9e6SYuval Mintz p_igu_info->igu_dsb_id = 0xffff; 1816fe56b9e6SYuval Mintz p_igu_info->igu_base_sb_iov = 0xffff; 1817fe56b9e6SYuval Mintz 18181408cc1fSYuval Mintz if (p_hwfn->cdev->p_iov_info) { 18191408cc1fSYuval Mintz struct qed_hw_sriov_info *p_iov = p_hwfn->cdev->p_iov_info; 18201408cc1fSYuval Mintz 18211408cc1fSYuval Mintz min_vf = p_iov->first_vf_in_pf; 18221408cc1fSYuval Mintz max_vf = p_iov->first_vf_in_pf + p_iov->total_vfs; 18231408cc1fSYuval Mintz } 18241408cc1fSYuval Mintz 1825fe56b9e6SYuval Mintz for (sb_id = 0; sb_id < QED_MAPPING_MEMORY_SIZE(p_hwfn->cdev); 1826fe56b9e6SYuval Mintz sb_id++) { 1827fe56b9e6SYuval Mintz blk = &p_igu_info->igu_map.igu_blocks[sb_id]; 1828fe56b9e6SYuval Mintz 18294ac801b7SYuval Mintz val = qed_int_igu_read_cam_block(p_hwfn, p_ptt, sb_id); 1830fe56b9e6SYuval Mintz 1831fe56b9e6SYuval Mintz /* stop scanning when hit first invalid PF entry */ 1832fe56b9e6SYuval Mintz if (!GET_FIELD(val, IGU_MAPPING_LINE_VALID) && 1833fe56b9e6SYuval Mintz GET_FIELD(val, IGU_MAPPING_LINE_PF_VALID)) 1834fe56b9e6SYuval Mintz break; 1835fe56b9e6SYuval Mintz 1836fe56b9e6SYuval Mintz if (blk->is_pf) { 1837fe56b9e6SYuval Mintz if (blk->function_id == p_hwfn->rel_pf_id) { 1838fe56b9e6SYuval Mintz blk->status |= QED_IGU_STATUS_PF; 1839fe56b9e6SYuval Mintz 1840fe56b9e6SYuval Mintz if (blk->vector_number == 0) { 1841fe56b9e6SYuval Mintz if (p_igu_info->igu_dsb_id == 0xffff) 1842fe56b9e6SYuval Mintz p_igu_info->igu_dsb_id = sb_id; 1843fe56b9e6SYuval Mintz } else { 1844fe56b9e6SYuval Mintz if (p_igu_info->igu_base_sb == 1845fe56b9e6SYuval Mintz 0xffff) { 1846fe56b9e6SYuval Mintz p_igu_info->igu_base_sb = sb_id; 1847fe56b9e6SYuval Mintz } else if (prev_sb_id != sb_id - 1) { 1848fe56b9e6SYuval Mintz DP_NOTICE(p_hwfn->cdev, 1849fe56b9e6SYuval Mintz "consecutive igu vectors for HWFN %x broken", 1850fe56b9e6SYuval Mintz p_hwfn->rel_pf_id); 1851fe56b9e6SYuval Mintz break; 1852fe56b9e6SYuval Mintz } 1853fe56b9e6SYuval Mintz prev_sb_id = sb_id; 1854fe56b9e6SYuval Mintz /* we don't count the default */ 1855fe56b9e6SYuval Mintz (p_igu_info->igu_sb_cnt)++; 1856fe56b9e6SYuval Mintz } 1857fe56b9e6SYuval Mintz } 18581408cc1fSYuval Mintz } else { 18591408cc1fSYuval Mintz if ((blk->function_id >= min_vf) && 18601408cc1fSYuval Mintz (blk->function_id < max_vf)) { 18611408cc1fSYuval Mintz /* Available for VFs of this PF */ 18621408cc1fSYuval Mintz if (p_igu_info->igu_base_sb_iov == 0xffff) { 18631408cc1fSYuval Mintz p_igu_info->igu_base_sb_iov = sb_id; 18641408cc1fSYuval Mintz } else if (last_iov_sb_id != sb_id - 1) { 18651408cc1fSYuval Mintz if (!val) { 18661408cc1fSYuval Mintz DP_VERBOSE(p_hwfn->cdev, 18671408cc1fSYuval Mintz NETIF_MSG_INTR, 18681408cc1fSYuval Mintz "First uninitialized IGU CAM entry at index 0x%04x\n", 18691408cc1fSYuval Mintz sb_id); 18701408cc1fSYuval Mintz } else { 18711408cc1fSYuval Mintz DP_NOTICE(p_hwfn->cdev, 18721408cc1fSYuval Mintz "Consecutive igu vectors for HWFN %x vfs is broken [jumps from %04x to %04x]\n", 18731408cc1fSYuval Mintz p_hwfn->rel_pf_id, 18741408cc1fSYuval Mintz last_iov_sb_id, 18751408cc1fSYuval Mintz sb_id); } 18761408cc1fSYuval Mintz break; 18771408cc1fSYuval Mintz } 18781408cc1fSYuval Mintz blk->status |= QED_IGU_STATUS_FREE; 18791408cc1fSYuval Mintz p_hwfn->hw_info.p_igu_info->free_blks++; 18801408cc1fSYuval Mintz last_iov_sb_id = sb_id; 1881fe56b9e6SYuval Mintz } 1882fe56b9e6SYuval Mintz } 18831408cc1fSYuval Mintz } 18845a1f965aSMintz, Yuval 18855a1f965aSMintz, Yuval /* There's a possibility the igu_sb_cnt_iov doesn't properly reflect 18865a1f965aSMintz, Yuval * the number of VF SBs [especially for first VF on engine, as we can't 18878ac1ed79SJoe Perches * differentiate between empty entries and its entries]. 18885a1f965aSMintz, Yuval * Since we don't really support more SBs than VFs today, prevent any 18895a1f965aSMintz, Yuval * such configuration by sanitizing the number of SBs to equal the 18905a1f965aSMintz, Yuval * number of VFs. 18915a1f965aSMintz, Yuval */ 18925a1f965aSMintz, Yuval if (IS_PF_SRIOV(p_hwfn)) { 18935a1f965aSMintz, Yuval u16 total_vfs = p_hwfn->cdev->p_iov_info->total_vfs; 18945a1f965aSMintz, Yuval 18955a1f965aSMintz, Yuval if (total_vfs < p_igu_info->free_blks) { 18965a1f965aSMintz, Yuval DP_VERBOSE(p_hwfn, 18975a1f965aSMintz, Yuval (NETIF_MSG_INTR | QED_MSG_IOV), 18985a1f965aSMintz, Yuval "Limiting number of SBs for IOV - %04x --> %04x\n", 18995a1f965aSMintz, Yuval p_igu_info->free_blks, 19005a1f965aSMintz, Yuval p_hwfn->cdev->p_iov_info->total_vfs); 19015a1f965aSMintz, Yuval p_igu_info->free_blks = total_vfs; 19025a1f965aSMintz, Yuval } else if (total_vfs > p_igu_info->free_blks) { 19035a1f965aSMintz, Yuval DP_NOTICE(p_hwfn, 19045a1f965aSMintz, Yuval "IGU has only %04x SBs for VFs while the device has %04x VFs\n", 19055a1f965aSMintz, Yuval p_igu_info->free_blks, total_vfs); 19065a1f965aSMintz, Yuval return -EINVAL; 19075a1f965aSMintz, Yuval } 19085a1f965aSMintz, Yuval } 19091408cc1fSYuval Mintz p_igu_info->igu_sb_cnt_iov = p_igu_info->free_blks; 1910fe56b9e6SYuval Mintz 19111408cc1fSYuval Mintz DP_VERBOSE( 19121408cc1fSYuval Mintz p_hwfn, 19131408cc1fSYuval Mintz NETIF_MSG_INTR, 19141408cc1fSYuval Mintz "IGU igu_base_sb=0x%x [IOV 0x%x] igu_sb_cnt=%d [IOV 0x%x] igu_dsb_id=0x%x\n", 1915fe56b9e6SYuval Mintz p_igu_info->igu_base_sb, 19161408cc1fSYuval Mintz p_igu_info->igu_base_sb_iov, 1917fe56b9e6SYuval Mintz p_igu_info->igu_sb_cnt, 19181408cc1fSYuval Mintz p_igu_info->igu_sb_cnt_iov, 1919fe56b9e6SYuval Mintz p_igu_info->igu_dsb_id); 1920fe56b9e6SYuval Mintz 1921fe56b9e6SYuval Mintz if (p_igu_info->igu_base_sb == 0xffff || 1922fe56b9e6SYuval Mintz p_igu_info->igu_dsb_id == 0xffff || 1923fe56b9e6SYuval Mintz p_igu_info->igu_sb_cnt == 0) { 1924fe56b9e6SYuval Mintz DP_NOTICE(p_hwfn, 1925fe56b9e6SYuval Mintz "IGU CAM returned invalid values igu_base_sb=0x%x igu_sb_cnt=%d igu_dsb_id=0x%x\n", 1926fe56b9e6SYuval Mintz p_igu_info->igu_base_sb, 1927fe56b9e6SYuval Mintz p_igu_info->igu_sb_cnt, 1928fe56b9e6SYuval Mintz p_igu_info->igu_dsb_id); 1929fe56b9e6SYuval Mintz return -EINVAL; 1930fe56b9e6SYuval Mintz } 1931fe56b9e6SYuval Mintz 1932fe56b9e6SYuval Mintz return 0; 1933fe56b9e6SYuval Mintz } 1934fe56b9e6SYuval Mintz 1935fe56b9e6SYuval Mintz /** 1936fe56b9e6SYuval Mintz * @brief Initialize igu runtime registers 1937fe56b9e6SYuval Mintz * 1938fe56b9e6SYuval Mintz * @param p_hwfn 1939fe56b9e6SYuval Mintz */ 1940fe56b9e6SYuval Mintz void qed_int_igu_init_rt(struct qed_hwfn *p_hwfn) 1941fe56b9e6SYuval Mintz { 19421a635e48SYuval Mintz u32 igu_pf_conf = IGU_PF_CONF_FUNC_EN; 1943fe56b9e6SYuval Mintz 1944fe56b9e6SYuval Mintz STORE_RT_REG(p_hwfn, IGU_REG_PF_CONFIGURATION_RT_OFFSET, igu_pf_conf); 1945fe56b9e6SYuval Mintz } 1946fe56b9e6SYuval Mintz 1947fe56b9e6SYuval Mintz u64 qed_int_igu_read_sisr_reg(struct qed_hwfn *p_hwfn) 1948fe56b9e6SYuval Mintz { 1949fe56b9e6SYuval Mintz u32 lsb_igu_cmd_addr = IGU_REG_SISR_MDPC_WMASK_LSB_UPPER - 1950fe56b9e6SYuval Mintz IGU_CMD_INT_ACK_BASE; 1951fe56b9e6SYuval Mintz u32 msb_igu_cmd_addr = IGU_REG_SISR_MDPC_WMASK_MSB_UPPER - 1952fe56b9e6SYuval Mintz IGU_CMD_INT_ACK_BASE; 19531a635e48SYuval Mintz u32 intr_status_hi = 0, intr_status_lo = 0; 19541a635e48SYuval Mintz u64 intr_status = 0; 1955fe56b9e6SYuval Mintz 1956fe56b9e6SYuval Mintz intr_status_lo = REG_RD(p_hwfn, 1957fe56b9e6SYuval Mintz GTT_BAR0_MAP_REG_IGU_CMD + 1958fe56b9e6SYuval Mintz lsb_igu_cmd_addr * 8); 1959fe56b9e6SYuval Mintz intr_status_hi = REG_RD(p_hwfn, 1960fe56b9e6SYuval Mintz GTT_BAR0_MAP_REG_IGU_CMD + 1961fe56b9e6SYuval Mintz msb_igu_cmd_addr * 8); 1962fe56b9e6SYuval Mintz intr_status = ((u64)intr_status_hi << 32) + (u64)intr_status_lo; 1963fe56b9e6SYuval Mintz 1964fe56b9e6SYuval Mintz return intr_status; 1965fe56b9e6SYuval Mintz } 1966fe56b9e6SYuval Mintz 1967fe56b9e6SYuval Mintz static void qed_int_sp_dpc_setup(struct qed_hwfn *p_hwfn) 1968fe56b9e6SYuval Mintz { 1969fe56b9e6SYuval Mintz tasklet_init(p_hwfn->sp_dpc, 1970fe56b9e6SYuval Mintz qed_int_sp_dpc, (unsigned long)p_hwfn); 1971fe56b9e6SYuval Mintz p_hwfn->b_sp_dpc_enabled = true; 1972fe56b9e6SYuval Mintz } 1973fe56b9e6SYuval Mintz 1974fe56b9e6SYuval Mintz static int qed_int_sp_dpc_alloc(struct qed_hwfn *p_hwfn) 1975fe56b9e6SYuval Mintz { 197660fffb3bSYuval Mintz p_hwfn->sp_dpc = kmalloc(sizeof(*p_hwfn->sp_dpc), GFP_KERNEL); 1977fe56b9e6SYuval Mintz if (!p_hwfn->sp_dpc) 1978fe56b9e6SYuval Mintz return -ENOMEM; 1979fe56b9e6SYuval Mintz 1980fe56b9e6SYuval Mintz return 0; 1981fe56b9e6SYuval Mintz } 1982fe56b9e6SYuval Mintz 1983fe56b9e6SYuval Mintz static void qed_int_sp_dpc_free(struct qed_hwfn *p_hwfn) 1984fe56b9e6SYuval Mintz { 1985fe56b9e6SYuval Mintz kfree(p_hwfn->sp_dpc); 19863587cb87STomer Tayar p_hwfn->sp_dpc = NULL; 1987fe56b9e6SYuval Mintz } 1988fe56b9e6SYuval Mintz 19891a635e48SYuval Mintz int qed_int_alloc(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) 1990fe56b9e6SYuval Mintz { 1991fe56b9e6SYuval Mintz int rc = 0; 1992fe56b9e6SYuval Mintz 1993fe56b9e6SYuval Mintz rc = qed_int_sp_dpc_alloc(p_hwfn); 199483aeb933SYuval Mintz if (rc) 19952591c280SJoe Perches return rc; 19962591c280SJoe Perches 19972591c280SJoe Perches rc = qed_int_sp_sb_alloc(p_hwfn, p_ptt); 19982591c280SJoe Perches if (rc) 19992591c280SJoe Perches return rc; 20002591c280SJoe Perches 20012591c280SJoe Perches rc = qed_int_sb_attn_alloc(p_hwfn, p_ptt); 200283aeb933SYuval Mintz 2003fe56b9e6SYuval Mintz return rc; 2004fe56b9e6SYuval Mintz } 2005fe56b9e6SYuval Mintz 2006fe56b9e6SYuval Mintz void qed_int_free(struct qed_hwfn *p_hwfn) 2007fe56b9e6SYuval Mintz { 2008fe56b9e6SYuval Mintz qed_int_sp_sb_free(p_hwfn); 2009cc875c2eSYuval Mintz qed_int_sb_attn_free(p_hwfn); 2010fe56b9e6SYuval Mintz qed_int_sp_dpc_free(p_hwfn); 2011fe56b9e6SYuval Mintz } 2012fe56b9e6SYuval Mintz 20131a635e48SYuval Mintz void qed_int_setup(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) 2014fe56b9e6SYuval Mintz { 20150d956e8aSYuval Mintz qed_int_sb_setup(p_hwfn, p_ptt, &p_hwfn->p_sp_sb->sb_info); 20160d956e8aSYuval Mintz qed_int_sb_attn_setup(p_hwfn, p_ptt); 2017fe56b9e6SYuval Mintz qed_int_sp_dpc_setup(p_hwfn); 2018fe56b9e6SYuval Mintz } 2019fe56b9e6SYuval Mintz 20204ac801b7SYuval Mintz void qed_int_get_num_sbs(struct qed_hwfn *p_hwfn, 20214ac801b7SYuval Mintz struct qed_sb_cnt_info *p_sb_cnt_info) 2022fe56b9e6SYuval Mintz { 2023fe56b9e6SYuval Mintz struct qed_igu_info *info = p_hwfn->hw_info.p_igu_info; 2024fe56b9e6SYuval Mintz 20254ac801b7SYuval Mintz if (!info || !p_sb_cnt_info) 20264ac801b7SYuval Mintz return; 2027fe56b9e6SYuval Mintz 20284ac801b7SYuval Mintz p_sb_cnt_info->sb_cnt = info->igu_sb_cnt; 20294ac801b7SYuval Mintz p_sb_cnt_info->sb_iov_cnt = info->igu_sb_cnt_iov; 20304ac801b7SYuval Mintz p_sb_cnt_info->sb_free_blk = info->free_blks; 2031fe56b9e6SYuval Mintz } 20328f16bc97SSudarsana Kalluru 20331408cc1fSYuval Mintz u16 qed_int_queue_id_from_sb_id(struct qed_hwfn *p_hwfn, u16 sb_id) 20341408cc1fSYuval Mintz { 20351408cc1fSYuval Mintz struct qed_igu_info *p_info = p_hwfn->hw_info.p_igu_info; 20361408cc1fSYuval Mintz 20371408cc1fSYuval Mintz /* Determine origin of SB id */ 20381408cc1fSYuval Mintz if ((sb_id >= p_info->igu_base_sb) && 20391408cc1fSYuval Mintz (sb_id < p_info->igu_base_sb + p_info->igu_sb_cnt)) { 20401408cc1fSYuval Mintz return sb_id - p_info->igu_base_sb; 20411408cc1fSYuval Mintz } else if ((sb_id >= p_info->igu_base_sb_iov) && 20421408cc1fSYuval Mintz (sb_id < p_info->igu_base_sb_iov + p_info->igu_sb_cnt_iov)) { 20435a1f965aSMintz, Yuval /* We want the first VF queue to be adjacent to the 20445a1f965aSMintz, Yuval * last PF queue. Since L2 queues can be partial to 20455a1f965aSMintz, Yuval * SBs, we'll use the feature instead. 20465a1f965aSMintz, Yuval */ 20475a1f965aSMintz, Yuval return sb_id - p_info->igu_base_sb_iov + 20485a1f965aSMintz, Yuval FEAT_NUM(p_hwfn, QED_PF_L2_QUE); 20491408cc1fSYuval Mintz } else { 20501408cc1fSYuval Mintz DP_NOTICE(p_hwfn, "SB %d not in range for function\n", sb_id); 20511408cc1fSYuval Mintz return 0; 20521408cc1fSYuval Mintz } 20531408cc1fSYuval Mintz } 20541408cc1fSYuval Mintz 20558f16bc97SSudarsana Kalluru void qed_int_disable_post_isr_release(struct qed_dev *cdev) 20568f16bc97SSudarsana Kalluru { 20578f16bc97SSudarsana Kalluru int i; 20588f16bc97SSudarsana Kalluru 20598f16bc97SSudarsana Kalluru for_each_hwfn(cdev, i) 20608f16bc97SSudarsana Kalluru cdev->hwfns[i].b_int_requested = false; 20618f16bc97SSudarsana Kalluru } 2062722003acSSudarsana Reddy Kalluru 2063722003acSSudarsana Reddy Kalluru int qed_int_set_timer_res(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, 2064722003acSSudarsana Reddy Kalluru u8 timer_res, u16 sb_id, bool tx) 2065722003acSSudarsana Reddy Kalluru { 2066722003acSSudarsana Reddy Kalluru struct cau_sb_entry sb_entry; 2067722003acSSudarsana Reddy Kalluru int rc; 2068722003acSSudarsana Reddy Kalluru 2069722003acSSudarsana Reddy Kalluru if (!p_hwfn->hw_init_done) { 2070722003acSSudarsana Reddy Kalluru DP_ERR(p_hwfn, "hardware not initialized yet\n"); 2071722003acSSudarsana Reddy Kalluru return -EINVAL; 2072722003acSSudarsana Reddy Kalluru } 2073722003acSSudarsana Reddy Kalluru 2074722003acSSudarsana Reddy Kalluru rc = qed_dmae_grc2host(p_hwfn, p_ptt, CAU_REG_SB_VAR_MEMORY + 2075722003acSSudarsana Reddy Kalluru sb_id * sizeof(u64), 2076722003acSSudarsana Reddy Kalluru (u64)(uintptr_t)&sb_entry, 2, 0); 2077722003acSSudarsana Reddy Kalluru if (rc) { 2078722003acSSudarsana Reddy Kalluru DP_ERR(p_hwfn, "dmae_grc2host failed %d\n", rc); 2079722003acSSudarsana Reddy Kalluru return rc; 2080722003acSSudarsana Reddy Kalluru } 2081722003acSSudarsana Reddy Kalluru 2082722003acSSudarsana Reddy Kalluru if (tx) 2083722003acSSudarsana Reddy Kalluru SET_FIELD(sb_entry.params, CAU_SB_ENTRY_TIMER_RES1, timer_res); 2084722003acSSudarsana Reddy Kalluru else 2085722003acSSudarsana Reddy Kalluru SET_FIELD(sb_entry.params, CAU_SB_ENTRY_TIMER_RES0, timer_res); 2086722003acSSudarsana Reddy Kalluru 2087722003acSSudarsana Reddy Kalluru rc = qed_dmae_host2grc(p_hwfn, p_ptt, 2088722003acSSudarsana Reddy Kalluru (u64)(uintptr_t)&sb_entry, 2089722003acSSudarsana Reddy Kalluru CAU_REG_SB_VAR_MEMORY + 2090722003acSSudarsana Reddy Kalluru sb_id * sizeof(u64), 2, 0); 2091722003acSSudarsana Reddy Kalluru if (rc) { 2092722003acSSudarsana Reddy Kalluru DP_ERR(p_hwfn, "dmae_host2grc failed %d\n", rc); 2093722003acSSudarsana Reddy Kalluru return rc; 2094722003acSSudarsana Reddy Kalluru } 2095722003acSSudarsana Reddy Kalluru 2096722003acSSudarsana Reddy Kalluru return rc; 2097722003acSSudarsana Reddy Kalluru } 2098