/* * Copyright (c) 2017-2018 Cavium, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * File : ecore_hw.c */ #include __FBSDID("$FreeBSD$"); #include "bcm_osal.h" #include "ecore_hsi_common.h" #include "ecore_status.h" #include "ecore.h" #include "ecore_hw.h" #include "reg_addr.h" #include "ecore_utils.h" #include "ecore_iov_api.h" #ifndef ASIC_ONLY #define ECORE_EMUL_FACTOR 2000 #define ECORE_FPGA_FACTOR 200 #endif #define ECORE_BAR_ACQUIRE_TIMEOUT 1000 /* Invalid values */ #define ECORE_BAR_INVALID_OFFSET (OSAL_CPU_TO_LE32(-1)) struct ecore_ptt { osal_list_entry_t list_entry; unsigned int idx; struct pxp_ptt_entry pxp; u8 hwfn_id; }; struct ecore_ptt_pool { osal_list_t free_list; osal_spinlock_t lock; /* ptt synchronized access */ struct ecore_ptt ptts[PXP_EXTERNAL_BAR_PF_WINDOW_NUM]; }; enum _ecore_status_t ecore_ptt_pool_alloc(struct ecore_hwfn *p_hwfn) { struct ecore_ptt_pool *p_pool = OSAL_ALLOC(p_hwfn->p_dev, GFP_KERNEL, sizeof(*p_pool)); int i; if (!p_pool) return ECORE_NOMEM; OSAL_LIST_INIT(&p_pool->free_list); for (i = 0; i < PXP_EXTERNAL_BAR_PF_WINDOW_NUM; i++) { p_pool->ptts[i].idx = i; p_pool->ptts[i].pxp.offset = ECORE_BAR_INVALID_OFFSET; p_pool->ptts[i].pxp.pretend.control = 0; p_pool->ptts[i].hwfn_id = p_hwfn->my_id; /* There are special PTT entries that are taken only by design. * The rest are added ot the list for general usage. */ if (i >= RESERVED_PTT_MAX) OSAL_LIST_PUSH_HEAD(&p_pool->ptts[i].list_entry, &p_pool->free_list); } p_hwfn->p_ptt_pool = p_pool; #ifdef CONFIG_ECORE_LOCK_ALLOC OSAL_SPIN_LOCK_ALLOC(p_hwfn, &p_pool->lock); #endif OSAL_SPIN_LOCK_INIT(&p_pool->lock); return ECORE_SUCCESS; } void ecore_ptt_invalidate(struct ecore_hwfn *p_hwfn) { struct ecore_ptt *p_ptt; int i; for (i = 0; i < PXP_EXTERNAL_BAR_PF_WINDOW_NUM; i++) { p_ptt = &p_hwfn->p_ptt_pool->ptts[i]; p_ptt->pxp.offset = ECORE_BAR_INVALID_OFFSET; } } void ecore_ptt_pool_free(struct ecore_hwfn *p_hwfn) { #ifdef CONFIG_ECORE_LOCK_ALLOC if (p_hwfn->p_ptt_pool) OSAL_SPIN_LOCK_DEALLOC(&p_hwfn->p_ptt_pool->lock); #endif OSAL_FREE(p_hwfn->p_dev, p_hwfn->p_ptt_pool); p_hwfn->p_ptt_pool = OSAL_NULL; } struct ecore_ptt *ecore_ptt_acquire(struct ecore_hwfn *p_hwfn) { struct ecore_ptt *p_ptt; unsigned int i; /* Take the free PTT from the list */ for (i = 0; i < ECORE_BAR_ACQUIRE_TIMEOUT; i++) { OSAL_SPIN_LOCK(&p_hwfn->p_ptt_pool->lock); if (!OSAL_LIST_IS_EMPTY(&p_hwfn->p_ptt_pool->free_list)) { p_ptt = OSAL_LIST_FIRST_ENTRY(&p_hwfn->p_ptt_pool->free_list, struct ecore_ptt, list_entry); OSAL_LIST_REMOVE_ENTRY(&p_ptt->list_entry, &p_hwfn->p_ptt_pool->free_list); OSAL_SPIN_UNLOCK(&p_hwfn->p_ptt_pool->lock); DP_VERBOSE(p_hwfn, ECORE_MSG_HW, "allocated ptt %d\n", p_ptt->idx); return p_ptt; } OSAL_SPIN_UNLOCK(&p_hwfn->p_ptt_pool->lock); OSAL_MSLEEP(1); } DP_NOTICE(p_hwfn, true, "PTT acquire timeout - failed to allocate PTT\n"); return OSAL_NULL; } void ecore_ptt_release(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt) { /* This PTT should not be set to pretend if it is being released */ /* TODO - add some pretend sanity checks, to make sure pretend isn't set on this ptt */ OSAL_SPIN_LOCK(&p_hwfn->p_ptt_pool->lock); OSAL_LIST_PUSH_HEAD(&p_ptt->list_entry, &p_hwfn->p_ptt_pool->free_list); OSAL_SPIN_UNLOCK(&p_hwfn->p_ptt_pool->lock); } u32 ecore_ptt_get_hw_addr(struct ecore_ptt *p_ptt) { /* The HW is using DWORDS and we need to translate it to Bytes */ return OSAL_LE32_TO_CPU(p_ptt->pxp.offset) << 2; } static u32 ecore_ptt_config_addr(struct ecore_ptt *p_ptt) { return PXP_PF_WINDOW_ADMIN_PER_PF_START + p_ptt->idx * sizeof(struct pxp_ptt_entry); } u32 ecore_ptt_get_bar_addr(struct ecore_ptt *p_ptt) { return PXP_EXTERNAL_BAR_PF_WINDOW_START + p_ptt->idx * PXP_EXTERNAL_BAR_PF_WINDOW_SINGLE_SIZE; } void ecore_ptt_set_win(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, u32 new_hw_addr) { u32 prev_hw_addr; prev_hw_addr = ecore_ptt_get_hw_addr(p_ptt); if (new_hw_addr == prev_hw_addr) return; /* Update PTT entery in admin window */ DP_VERBOSE(p_hwfn, ECORE_MSG_HW, "Updating PTT entry %d to offset 0x%x\n", p_ptt->idx, new_hw_addr); /* The HW is using DWORDS and the address is in Bytes */ p_ptt->pxp.offset = OSAL_CPU_TO_LE32(new_hw_addr >> 2); REG_WR(p_hwfn, ecore_ptt_config_addr(p_ptt) + OFFSETOF(struct pxp_ptt_entry, offset), OSAL_LE32_TO_CPU(p_ptt->pxp.offset)); } static u32 ecore_set_ptt(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, u32 hw_addr) { u32 win_hw_addr = ecore_ptt_get_hw_addr(p_ptt); u32 offset; offset = hw_addr - win_hw_addr; if (p_ptt->hwfn_id != p_hwfn->my_id) DP_NOTICE(p_hwfn, true, "ptt[%d] of hwfn[%02x] is used by hwfn[%02x]!\n", p_ptt->idx, p_ptt->hwfn_id, p_hwfn->my_id); /* Verify the address is within the window */ if (hw_addr < win_hw_addr || offset >= PXP_EXTERNAL_BAR_PF_WINDOW_SINGLE_SIZE) { ecore_ptt_set_win(p_hwfn, p_ptt, hw_addr); offset = 0; } return ecore_ptt_get_bar_addr(p_ptt) + offset; } struct ecore_ptt *ecore_get_reserved_ptt(struct ecore_hwfn *p_hwfn, enum reserved_ptts ptt_idx) { if (ptt_idx >= RESERVED_PTT_MAX) { DP_NOTICE(p_hwfn, true, "Requested PTT %d is out of range\n", ptt_idx); return OSAL_NULL; } return &p_hwfn->p_ptt_pool->ptts[ptt_idx]; } static bool ecore_is_reg_fifo_empty(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt) { bool is_empty = true; u32 bar_addr; if (!p_hwfn->p_dev->chk_reg_fifo) goto out; /* ecore_rd() cannot be used here since it calls this function */ bar_addr = ecore_set_ptt(p_hwfn, p_ptt, GRC_REG_TRACE_FIFO_VALID_DATA); is_empty = REG_RD(p_hwfn, bar_addr) == 0; #ifndef ASIC_ONLY if (CHIP_REV_IS_SLOW(p_hwfn->p_dev)) OSAL_UDELAY(100); #endif out: return is_empty; } void ecore_wr(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, u32 hw_addr, u32 val) { bool prev_fifo_err; u32 bar_addr; prev_fifo_err = !ecore_is_reg_fifo_empty(p_hwfn, p_ptt); bar_addr = ecore_set_ptt(p_hwfn, p_ptt, hw_addr); REG_WR(p_hwfn, bar_addr, val); DP_VERBOSE(p_hwfn, ECORE_MSG_HW, "bar_addr 0x%x, hw_addr 0x%x, val 0x%x\n", bar_addr, hw_addr, val); #ifndef ASIC_ONLY if (CHIP_REV_IS_SLOW(p_hwfn->p_dev)) OSAL_UDELAY(100); #endif OSAL_WARN(!prev_fifo_err && !ecore_is_reg_fifo_empty(p_hwfn, p_ptt), "reg_fifo error was caused by a call to ecore_wr(0x%x, 0x%x)\n", hw_addr, val); } u32 ecore_rd(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, u32 hw_addr) { bool prev_fifo_err; u32 bar_addr, val; prev_fifo_err = !ecore_is_reg_fifo_empty(p_hwfn, p_ptt); bar_addr = ecore_set_ptt(p_hwfn, p_ptt, hw_addr); val = REG_RD(p_hwfn, bar_addr); DP_VERBOSE(p_hwfn, ECORE_MSG_HW, "bar_addr 0x%x, hw_addr 0x%x, val 0x%x\n", bar_addr, hw_addr, val); #ifndef ASIC_ONLY if (CHIP_REV_IS_SLOW(p_hwfn->p_dev)) OSAL_UDELAY(100); #endif OSAL_WARN(!prev_fifo_err && !ecore_is_reg_fifo_empty(p_hwfn, p_ptt), "reg_fifo error was caused by a call to ecore_rd(0x%x)\n", hw_addr); return val; } static void ecore_memcpy_hw(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, void *addr, u32 hw_addr, osal_size_t n, bool to_device) { u32 dw_count, *host_addr, hw_offset; osal_size_t quota, done = 0; u32 OSAL_IOMEM *reg_addr; while (done < n) { quota = OSAL_MIN_T(osal_size_t, n - done, PXP_EXTERNAL_BAR_PF_WINDOW_SINGLE_SIZE); if (IS_PF(p_hwfn->p_dev)) { ecore_ptt_set_win(p_hwfn, p_ptt, hw_addr + done); hw_offset = ecore_ptt_get_bar_addr(p_ptt); } else { hw_offset = hw_addr + done; } dw_count = quota / 4; host_addr = (u32 *)((u8 *)addr + done); reg_addr = (u32 OSAL_IOMEM *)OSAL_REG_ADDR(p_hwfn, hw_offset); if (to_device) while (dw_count--) DIRECT_REG_WR(p_hwfn, reg_addr++, *host_addr++); else while (dw_count--) *host_addr++ = DIRECT_REG_RD(p_hwfn, reg_addr++); done += quota; } } void ecore_memcpy_from(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, void *dest, u32 hw_addr, osal_size_t n) { DP_VERBOSE(p_hwfn, ECORE_MSG_HW, "hw_addr 0x%x, dest %p hw_addr 0x%x, size %lu\n", hw_addr, dest, hw_addr, (unsigned long) n); ecore_memcpy_hw(p_hwfn, p_ptt, dest, hw_addr, n, false); } void ecore_memcpy_to(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, u32 hw_addr, void *src, osal_size_t n) { DP_VERBOSE(p_hwfn, ECORE_MSG_HW, "hw_addr 0x%x, hw_addr 0x%x, src %p size %lu\n", hw_addr, hw_addr, src, (unsigned long)n); ecore_memcpy_hw(p_hwfn, p_ptt, src, hw_addr, n, true); } void ecore_fid_pretend(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, u16 fid) { u16 control = 0; SET_FIELD(control, PXP_PRETEND_CMD_IS_CONCRETE, 1); SET_FIELD(control, PXP_PRETEND_CMD_PRETEND_FUNCTION, 1); /* Every pretend undos previous pretends, including * previous port pretend. */ SET_FIELD(control, PXP_PRETEND_CMD_PORT, 0); SET_FIELD(control, PXP_PRETEND_CMD_USE_PORT, 0); SET_FIELD(control, PXP_PRETEND_CMD_PRETEND_PORT, 1); if (!GET_FIELD(fid, PXP_CONCRETE_FID_VFVALID)) fid = GET_FIELD(fid, PXP_CONCRETE_FID_PFID); p_ptt->pxp.pretend.control = OSAL_CPU_TO_LE16(control); p_ptt->pxp.pretend.fid.concrete_fid.fid = OSAL_CPU_TO_LE16(fid); REG_WR(p_hwfn, ecore_ptt_config_addr(p_ptt) + OFFSETOF(struct pxp_ptt_entry, pretend), *(u32 *)&p_ptt->pxp.pretend); } void ecore_port_pretend(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, u8 port_id) { u16 control = 0; SET_FIELD(control, PXP_PRETEND_CMD_PORT, port_id); SET_FIELD(control, PXP_PRETEND_CMD_USE_PORT, 1); SET_FIELD(control, PXP_PRETEND_CMD_PRETEND_PORT, 1); p_ptt->pxp.pretend.control = OSAL_CPU_TO_LE16(control); REG_WR(p_hwfn, ecore_ptt_config_addr(p_ptt) + OFFSETOF(struct pxp_ptt_entry, pretend), *(u32 *)&p_ptt->pxp.pretend); } void ecore_port_unpretend(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt) { u16 control = 0; SET_FIELD(control, PXP_PRETEND_CMD_PORT, 0); SET_FIELD(control, PXP_PRETEND_CMD_USE_PORT, 0); SET_FIELD(control, PXP_PRETEND_CMD_PRETEND_PORT, 1); p_ptt->pxp.pretend.control = OSAL_CPU_TO_LE16(control); REG_WR(p_hwfn, ecore_ptt_config_addr(p_ptt) + OFFSETOF(struct pxp_ptt_entry, pretend), *(u32 *)&p_ptt->pxp.pretend); } u32 ecore_vfid_to_concrete(struct ecore_hwfn *p_hwfn, u8 vfid) { u32 concrete_fid = 0; SET_FIELD(concrete_fid, PXP_CONCRETE_FID_PFID, p_hwfn->rel_pf_id); SET_FIELD(concrete_fid, PXP_CONCRETE_FID_VFID, vfid); SET_FIELD(concrete_fid, PXP_CONCRETE_FID_VFVALID, 1); return concrete_fid; } #if 0 /* Ecore HW lock * ============= * Although the implemention is ready, today we don't have any flow that * utliizes said locks - and we want to keep it this way. * If this changes, this needs to be revisted. */ #define HW_LOCK_MAX_RETRIES 1000 enum _ecore_status_t ecore_hw_lock(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, u8 resource, bool block) { u32 cnt, lock_status, hw_lock_cntr_reg; enum _ecore_status_t ecore_status; /* Locate the proper lock register for this function. * Note This code assumes all the H/W lock registers are sequential * in memory. */ hw_lock_cntr_reg = MISCS_REG_DRIVER_CONTROL_0 + p_hwfn->rel_pf_id * MISCS_REG_DRIVER_CONTROL_0_SIZE * sizeof(u32); /* Validate that the resource is not already taken */ lock_status = ecore_rd(p_hwfn, p_ptt, hw_lock_cntr_reg); if (lock_status & resource) { DP_NOTICE(p_hwfn, true, "Resource already locked: lock_status=0x%x resource=0x%x\n", lock_status, resource); return ECORE_BUSY; } /* Register for the lock */ ecore_wr(p_hwfn, p_ptt, hw_lock_cntr_reg + sizeof(u32), resource); /* Try for 5 seconds every 5ms */ for (cnt = 0; cnt < HW_LOCK_MAX_RETRIES; cnt++) { lock_status = ecore_rd(p_hwfn, p_ptt, hw_lock_cntr_reg); if (lock_status & resource) return ECORE_SUCCESS; if (!block) { ecore_status = ECORE_BUSY; break; } OSAL_MSLEEP(5); } if (cnt == HW_LOCK_MAX_RETRIES) { DP_NOTICE(p_hwfn, true, "Lock timeout resource=0x%x\n", resource); ecore_status = ECORE_TIMEOUT; } /* Clear the pending request */ ecore_wr(p_hwfn, p_ptt, hw_lock_cntr_reg, resource); return ecore_status; } enum _ecore_status_t ecore_hw_unlock(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, u8 resource) { u32 lock_status, hw_lock_cntr_reg; /* Locate the proper lock register for this function. * Note This code assumes all the H/W lock registers are sequential * in memory. */ hw_lock_cntr_reg = MISCS_REG_DRIVER_CONTROL_0 + p_hwfn->rel_pf_id * MISCS_REG_DRIVER_CONTROL_0_SIZE * sizeof(u32); /* Validate that the resource is currently taken */ lock_status = ecore_rd(p_hwfn, p_ptt, hw_lock_cntr_reg); if (!(lock_status & resource)) { DP_NOTICE(p_hwfn, true, "resource 0x%x was not taken (lock status 0x%x)\n", resource, lock_status); return ECORE_NODEV; } /* clear lock for resource */ ecore_wr(p_hwfn, p_ptt, hw_lock_cntr_reg, resource); return ECORE_SUCCESS; } #endif /* HW locks logic */ /* DMAE */ static void ecore_dmae_opcode(struct ecore_hwfn *p_hwfn, const u8 is_src_type_grc, const u8 is_dst_type_grc, struct ecore_dmae_params *p_params) { u16 opcode_b = 0; u32 opcode = 0; /* Whether the source is the PCIe or the GRC. * 0- The source is the PCIe * 1- The source is the GRC. */ opcode |= (is_src_type_grc ? DMAE_CMD_SRC_MASK_GRC : DMAE_CMD_SRC_MASK_PCIE) << DMAE_CMD_SRC_SHIFT; opcode |= (p_hwfn->rel_pf_id & DMAE_CMD_SRC_PF_ID_MASK) << DMAE_CMD_SRC_PF_ID_SHIFT; /* The destination of the DMA can be: 0-None 1-PCIe 2-GRC 3-None */ opcode |= (is_dst_type_grc ? DMAE_CMD_DST_MASK_GRC : DMAE_CMD_DST_MASK_PCIE) << DMAE_CMD_DST_SHIFT; opcode |= (p_hwfn->rel_pf_id & DMAE_CMD_DST_PF_ID_MASK) << DMAE_CMD_DST_PF_ID_SHIFT; /* DMAE_E4_TODO need to check which value to specifiy here. */ /* opcode |= (!b_complete_to_host)<< DMAE_CMD_C_DST_SHIFT;*/ /* Whether to write a completion word to the completion destination: * 0-Do not write a completion word * 1-Write the completion word */ opcode |= DMAE_CMD_COMP_WORD_EN_MASK << DMAE_CMD_COMP_WORD_EN_SHIFT; opcode |= DMAE_CMD_SRC_ADDR_RESET_MASK << DMAE_CMD_SRC_ADDR_RESET_SHIFT; if (p_params->flags & ECORE_DMAE_FLAG_COMPLETION_DST) opcode |= 1 << DMAE_CMD_COMP_FUNC_SHIFT; /* swapping mode 3 - big endian there should be a define ifdefed in * the HSI somewhere. Since it is currently */ opcode |= DMAE_CMD_ENDIANITY << DMAE_CMD_ENDIANITY_MODE_SHIFT; opcode |= p_hwfn->port_id << DMAE_CMD_PORT_ID_SHIFT; /* reset source address in next go */ opcode |= DMAE_CMD_SRC_ADDR_RESET_MASK << DMAE_CMD_SRC_ADDR_RESET_SHIFT; /* reset dest address in next go */ opcode |= DMAE_CMD_DST_ADDR_RESET_MASK << DMAE_CMD_DST_ADDR_RESET_SHIFT; /* SRC/DST VFID: all 1's - pf, otherwise VF id */ if (p_params->flags & ECORE_DMAE_FLAG_VF_SRC) { opcode |= (1 << DMAE_CMD_SRC_VF_ID_VALID_SHIFT); opcode_b |= (p_params->src_vfid << DMAE_CMD_SRC_VF_ID_SHIFT); } else { opcode_b |= (DMAE_CMD_SRC_VF_ID_MASK << DMAE_CMD_SRC_VF_ID_SHIFT); } if (p_params->flags & ECORE_DMAE_FLAG_VF_DST) { opcode |= 1 << DMAE_CMD_DST_VF_ID_VALID_SHIFT; opcode_b |= p_params->dst_vfid << DMAE_CMD_DST_VF_ID_SHIFT; } else { opcode_b |= DMAE_CMD_DST_VF_ID_MASK << DMAE_CMD_DST_VF_ID_SHIFT; } p_hwfn->dmae_info.p_dmae_cmd->opcode = OSAL_CPU_TO_LE32(opcode); p_hwfn->dmae_info.p_dmae_cmd->opcode_b = OSAL_CPU_TO_LE16(opcode_b); } static u32 ecore_dmae_idx_to_go_cmd(u8 idx) { OSAL_BUILD_BUG_ON((DMAE_REG_GO_C31 - DMAE_REG_GO_C0) != 31 * 4); /* All the DMAE 'go' registers form an array in internal memory */ return DMAE_REG_GO_C0 + (idx << 2); } static enum _ecore_status_t ecore_dmae_post_command(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt) { struct dmae_cmd *p_command = p_hwfn->dmae_info.p_dmae_cmd; u8 idx_cmd = p_hwfn->dmae_info.channel, i; enum _ecore_status_t ecore_status = ECORE_SUCCESS; /* verify address is not OSAL_NULL */ if ((((!p_command->dst_addr_lo) && (!p_command->dst_addr_hi)) || ((!p_command->src_addr_lo) && (!p_command->src_addr_hi)))) { DP_NOTICE(p_hwfn, true, "source or destination address 0 idx_cmd=%d\n" "opcode = [0x%08x,0x%04x] len=0x%x src=0x%x:%x dst=0x%x:%x\n", idx_cmd, OSAL_LE32_TO_CPU(p_command->opcode), OSAL_LE16_TO_CPU(p_command->opcode_b), OSAL_LE16_TO_CPU(p_command->length_dw), OSAL_LE32_TO_CPU(p_command->src_addr_hi), OSAL_LE32_TO_CPU(p_command->src_addr_lo), OSAL_LE32_TO_CPU(p_command->dst_addr_hi), OSAL_LE32_TO_CPU(p_command->dst_addr_lo)); return ECORE_INVAL; } DP_VERBOSE(p_hwfn, ECORE_MSG_HW, "Posting DMAE command [idx %d]: opcode = [0x%08x,0x%04x] len=0x%x src=0x%x:%x dst=0x%x:%x\n", idx_cmd, OSAL_LE32_TO_CPU(p_command->opcode), OSAL_LE16_TO_CPU(p_command->opcode_b), OSAL_LE16_TO_CPU(p_command->length_dw), OSAL_LE32_TO_CPU(p_command->src_addr_hi), OSAL_LE32_TO_CPU(p_command->src_addr_lo), OSAL_LE32_TO_CPU(p_command->dst_addr_hi), OSAL_LE32_TO_CPU(p_command->dst_addr_lo)); /* Copy the command to DMAE - need to do it before every call * for source/dest address no reset. * The number of commands have been increased to 16 (previous was 14) * The first 9 DWs are the command registers, the 10 DW is the * GO register, and * the rest are result registers (which are read only by the client). */ for (i = 0; i < DMAE_CMD_SIZE; i++) { u32 data = (i < DMAE_CMD_SIZE_TO_FILL) ? *(((u32 *)p_command) + i) : 0; ecore_wr(p_hwfn, p_ptt, DMAE_REG_CMD_MEM + (idx_cmd * DMAE_CMD_SIZE * sizeof(u32)) + (i * sizeof(u32)), data); } ecore_wr(p_hwfn, p_ptt, ecore_dmae_idx_to_go_cmd(idx_cmd), DMAE_GO_VALUE); return ecore_status; } enum _ecore_status_t ecore_dmae_info_alloc(struct ecore_hwfn *p_hwfn) { dma_addr_t *p_addr = &p_hwfn->dmae_info.completion_word_phys_addr; struct dmae_cmd **p_cmd = &p_hwfn->dmae_info.p_dmae_cmd; u32 **p_buff = &p_hwfn->dmae_info.p_intermediate_buffer; u32 **p_comp = &p_hwfn->dmae_info.p_completion_word; *p_comp = OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, p_addr, sizeof(u32)); if (*p_comp == OSAL_NULL) { DP_NOTICE(p_hwfn, true, "Failed to allocate `p_completion_word'\n"); goto err; } p_addr = &p_hwfn->dmae_info.dmae_cmd_phys_addr; *p_cmd = OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, p_addr, sizeof(struct dmae_cmd)); if (*p_cmd == OSAL_NULL) { DP_NOTICE(p_hwfn, true, "Failed to allocate `struct dmae_cmd'\n"); goto err; } p_addr = &p_hwfn->dmae_info.intermediate_buffer_phys_addr; *p_buff = OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, p_addr, sizeof(u32) * DMAE_MAX_RW_SIZE); if (*p_buff == OSAL_NULL) { DP_NOTICE(p_hwfn, true, "Failed to allocate `intermediate_buffer'\n"); goto err; } p_hwfn->dmae_info.channel = p_hwfn->rel_pf_id; return ECORE_SUCCESS; err: ecore_dmae_info_free(p_hwfn); return ECORE_NOMEM; } void ecore_dmae_info_free(struct ecore_hwfn *p_hwfn) { dma_addr_t p_phys; /* Just make sure no one is in the middle */ OSAL_MUTEX_ACQUIRE(&p_hwfn->dmae_info.mutex); if (p_hwfn->dmae_info.p_completion_word != OSAL_NULL) { p_phys = p_hwfn->dmae_info.completion_word_phys_addr; OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, p_hwfn->dmae_info.p_completion_word, p_phys, sizeof(u32)); p_hwfn->dmae_info.p_completion_word = OSAL_NULL; } if (p_hwfn->dmae_info.p_dmae_cmd != OSAL_NULL) { p_phys = p_hwfn->dmae_info.dmae_cmd_phys_addr; OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, p_hwfn->dmae_info.p_dmae_cmd, p_phys, sizeof(struct dmae_cmd)); p_hwfn->dmae_info.p_dmae_cmd = OSAL_NULL; } if (p_hwfn->dmae_info.p_intermediate_buffer != OSAL_NULL) { p_phys = p_hwfn->dmae_info.intermediate_buffer_phys_addr; OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, p_hwfn->dmae_info.p_intermediate_buffer, p_phys, sizeof(u32) * DMAE_MAX_RW_SIZE); p_hwfn->dmae_info.p_intermediate_buffer = OSAL_NULL; } OSAL_MUTEX_RELEASE(&p_hwfn->dmae_info.mutex); } static enum _ecore_status_t ecore_dmae_operation_wait(struct ecore_hwfn *p_hwfn) { u32 wait_cnt_limit = 10000, wait_cnt = 0; enum _ecore_status_t ecore_status = ECORE_SUCCESS; #ifndef ASIC_ONLY u32 factor = (CHIP_REV_IS_EMUL(p_hwfn->p_dev) ? ECORE_EMUL_FACTOR : (CHIP_REV_IS_FPGA(p_hwfn->p_dev) ? ECORE_FPGA_FACTOR : 1)); wait_cnt_limit *= factor; #endif /* DMAE_E4_TODO : TODO check if we have to call any other function * other than BARRIER to sync the completion_word since we are not * using the volatile keyword for this */ OSAL_BARRIER(p_hwfn->p_dev); while (*p_hwfn->dmae_info.p_completion_word != DMAE_COMPLETION_VAL) { OSAL_UDELAY(DMAE_MIN_WAIT_TIME); if (++wait_cnt > wait_cnt_limit) { DP_NOTICE(p_hwfn->p_dev, ECORE_MSG_HW, "Timed-out waiting for operation to complete. Completion word is 0x%08x expected 0x%08x.\n", *(p_hwfn->dmae_info.p_completion_word), DMAE_COMPLETION_VAL); ecore_status = ECORE_TIMEOUT; break; } /* to sync the completion_word since we are not * using the volatile keyword for p_completion_word */ OSAL_BARRIER(p_hwfn->p_dev); } if (ecore_status == ECORE_SUCCESS) *p_hwfn->dmae_info.p_completion_word = 0; return ecore_status; } static enum _ecore_status_t ecore_dmae_execute_sub_operation(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, u64 src_addr, u64 dst_addr, u8 src_type, u8 dst_type, u32 length_dw) { dma_addr_t phys = p_hwfn->dmae_info.intermediate_buffer_phys_addr; struct dmae_cmd *cmd = p_hwfn->dmae_info.p_dmae_cmd; enum _ecore_status_t ecore_status = ECORE_SUCCESS; switch (src_type) { case ECORE_DMAE_ADDRESS_GRC: case ECORE_DMAE_ADDRESS_HOST_PHYS: cmd->src_addr_hi = OSAL_CPU_TO_LE32(DMA_HI(src_addr)); cmd->src_addr_lo = OSAL_CPU_TO_LE32(DMA_LO(src_addr)); break; /* for virtual source addresses we use the intermediate buffer. */ case ECORE_DMAE_ADDRESS_HOST_VIRT: cmd->src_addr_hi = OSAL_CPU_TO_LE32(DMA_HI(phys)); cmd->src_addr_lo = OSAL_CPU_TO_LE32(DMA_LO(phys)); OSAL_MEMCPY(&(p_hwfn->dmae_info.p_intermediate_buffer[0]), (void *)(osal_uintptr_t)src_addr, length_dw * sizeof(u32)); break; default: return ECORE_INVAL; } switch (dst_type) { case ECORE_DMAE_ADDRESS_GRC: case ECORE_DMAE_ADDRESS_HOST_PHYS: cmd->dst_addr_hi = OSAL_CPU_TO_LE32(DMA_HI(dst_addr)); cmd->dst_addr_lo = OSAL_CPU_TO_LE32(DMA_LO(dst_addr)); break; /* for virtual destination addresses we use the intermediate buffer. */ case ECORE_DMAE_ADDRESS_HOST_VIRT: cmd->dst_addr_hi = OSAL_CPU_TO_LE32(DMA_HI(phys)); cmd->dst_addr_lo = OSAL_CPU_TO_LE32(DMA_LO(phys)); break; default: return ECORE_INVAL; } cmd->length_dw = OSAL_CPU_TO_LE16((u16)length_dw); if (src_type == ECORE_DMAE_ADDRESS_HOST_VIRT || src_type == ECORE_DMAE_ADDRESS_HOST_PHYS) OSAL_DMA_SYNC(p_hwfn->p_dev, (void *)HILO_U64(cmd->src_addr_hi, cmd->src_addr_lo), length_dw * sizeof(u32), false); ecore_dmae_post_command(p_hwfn, p_ptt); ecore_status = ecore_dmae_operation_wait(p_hwfn); /* TODO - is it true ? */ if (src_type == ECORE_DMAE_ADDRESS_HOST_VIRT || src_type == ECORE_DMAE_ADDRESS_HOST_PHYS) OSAL_DMA_SYNC(p_hwfn->p_dev, (void *)HILO_U64(cmd->src_addr_hi, cmd->src_addr_lo), length_dw * sizeof(u32), true); if (ecore_status != ECORE_SUCCESS) { DP_NOTICE(p_hwfn, ECORE_MSG_HW, "Wait Failed. source_addr 0x%llx, grc_addr 0x%llx, size_in_dwords 0x%x, intermediate buffer 0x%llx.\n", (unsigned long long)src_addr, (unsigned long long)dst_addr, length_dw, (unsigned long long)p_hwfn->dmae_info.intermediate_buffer_phys_addr); return ecore_status; } if (dst_type == ECORE_DMAE_ADDRESS_HOST_VIRT) OSAL_MEMCPY((void *)(osal_uintptr_t)(dst_addr), &p_hwfn->dmae_info.p_intermediate_buffer[0], length_dw * sizeof(u32)); return ECORE_SUCCESS; } static enum _ecore_status_t ecore_dmae_execute_command(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, u64 src_addr, u64 dst_addr, u8 src_type, u8 dst_type, u32 size_in_dwords, struct ecore_dmae_params *p_params) { dma_addr_t phys = p_hwfn->dmae_info.completion_word_phys_addr; u16 length_cur = 0, i = 0, cnt_split = 0, length_mod = 0; struct dmae_cmd *cmd = p_hwfn->dmae_info.p_dmae_cmd; u64 src_addr_split = 0, dst_addr_split = 0; u16 length_limit = DMAE_MAX_RW_SIZE; enum _ecore_status_t ecore_status = ECORE_SUCCESS; u32 offset = 0; if (p_hwfn->p_dev->recov_in_prog) { DP_VERBOSE(p_hwfn, ECORE_MSG_HW, "Recovery is in progress. Avoid DMAE transaction [{src: addr 0x%llx, type %d}, {dst: addr 0x%llx, type %d}, size %d].\n", (unsigned long long)src_addr, src_type, (unsigned long long)dst_addr, dst_type, size_in_dwords); /* Return success to let the flow to be completed successfully * w/o any error handling. */ return ECORE_SUCCESS; } ecore_dmae_opcode(p_hwfn, (src_type == ECORE_DMAE_ADDRESS_GRC), (dst_type == ECORE_DMAE_ADDRESS_GRC), p_params); cmd->comp_addr_lo = OSAL_CPU_TO_LE32(DMA_LO(phys)); cmd->comp_addr_hi = OSAL_CPU_TO_LE32(DMA_HI(phys)); cmd->comp_val = OSAL_CPU_TO_LE32(DMAE_COMPLETION_VAL); /* Check if the grc_addr is valid like < MAX_GRC_OFFSET */ cnt_split = size_in_dwords / length_limit; length_mod = size_in_dwords % length_limit; src_addr_split = src_addr; dst_addr_split = dst_addr; for (i = 0; i <= cnt_split; i++) { offset = length_limit * i; if (!(p_params->flags & ECORE_DMAE_FLAG_RW_REPL_SRC)) { if (src_type == ECORE_DMAE_ADDRESS_GRC) src_addr_split = src_addr + offset; else src_addr_split = src_addr + (offset*4); } if (dst_type == ECORE_DMAE_ADDRESS_GRC) dst_addr_split = dst_addr + offset; else dst_addr_split = dst_addr + (offset*4); length_cur = (cnt_split == i) ? length_mod : length_limit; /* might be zero on last iteration */ if (!length_cur) continue; ecore_status = ecore_dmae_execute_sub_operation(p_hwfn, p_ptt, src_addr_split, dst_addr_split, src_type, dst_type, length_cur); if (ecore_status != ECORE_SUCCESS) { DP_NOTICE(p_hwfn, false, "ecore_dmae_execute_sub_operation Failed with error 0x%x. source_addr 0x%llx, destination addr 0x%llx, size_in_dwords 0x%x\n", ecore_status, (unsigned long long)src_addr, (unsigned long long)dst_addr, length_cur); ecore_hw_err_notify(p_hwfn, ECORE_HW_ERR_DMAE_FAIL); break; } } return ecore_status; } enum _ecore_status_t ecore_dmae_host2grc(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, u64 source_addr, u32 grc_addr, u32 size_in_dwords, u32 flags) { u32 grc_addr_in_dw = grc_addr / sizeof(u32); struct ecore_dmae_params params; enum _ecore_status_t rc; OSAL_MEMSET(¶ms, 0, sizeof(struct ecore_dmae_params)); params.flags = flags; OSAL_MUTEX_ACQUIRE(&p_hwfn->dmae_info.mutex); rc = ecore_dmae_execute_command(p_hwfn, p_ptt, source_addr, grc_addr_in_dw, ECORE_DMAE_ADDRESS_HOST_VIRT, ECORE_DMAE_ADDRESS_GRC, size_in_dwords, ¶ms); OSAL_MUTEX_RELEASE(&p_hwfn->dmae_info.mutex); return rc; } enum _ecore_status_t ecore_dmae_grc2host(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, u32 grc_addr, dma_addr_t dest_addr, u32 size_in_dwords, u32 flags) { u32 grc_addr_in_dw = grc_addr / sizeof(u32); struct ecore_dmae_params params; enum _ecore_status_t rc; OSAL_MEMSET(¶ms, 0, sizeof(struct ecore_dmae_params)); params.flags = flags; OSAL_MUTEX_ACQUIRE(&(p_hwfn->dmae_info.mutex)); rc = ecore_dmae_execute_command(p_hwfn, p_ptt, grc_addr_in_dw, dest_addr, ECORE_DMAE_ADDRESS_GRC, ECORE_DMAE_ADDRESS_HOST_VIRT, size_in_dwords, ¶ms); OSAL_MUTEX_RELEASE(&(p_hwfn->dmae_info.mutex)); return rc; } enum _ecore_status_t ecore_dmae_host2host(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, dma_addr_t source_addr, dma_addr_t dest_addr, u32 size_in_dwords, struct ecore_dmae_params *p_params) { enum _ecore_status_t rc; OSAL_MUTEX_ACQUIRE(&p_hwfn->dmae_info.mutex); rc = ecore_dmae_execute_command(p_hwfn, p_ptt, source_addr, dest_addr, ECORE_DMAE_ADDRESS_HOST_PHYS, ECORE_DMAE_ADDRESS_HOST_PHYS, size_in_dwords, p_params); OSAL_MUTEX_RELEASE(&p_hwfn->dmae_info.mutex); return rc; } void ecore_hw_err_notify(struct ecore_hwfn *p_hwfn, enum ecore_hw_err_type err_type) { /* Fan failure cannot be masked by handling of another HW error */ if (p_hwfn->p_dev->recov_in_prog && err_type != ECORE_HW_ERR_FAN_FAIL) { DP_VERBOSE(p_hwfn, ECORE_MSG_DRV, "Recovery is in progress. Avoid notifying about HW error %d.\n", err_type); return; } OSAL_HW_ERROR_OCCURRED(p_hwfn, err_type); }