diff options
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_dev.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_dev.c | 646 |
1 files changed, 548 insertions, 98 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c index 2d89e8c16b32..b26fe267a150 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_dev.c +++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c @@ -17,6 +17,7 @@ #include <linux/pci.h> #include <linux/slab.h> #include <linux/string.h> +#include <linux/vmalloc.h> #include <linux/etherdevice.h> #include <linux/qed/qed_chain.h> #include <linux/qed/qed_if.h> @@ -160,9 +161,13 @@ static int qed_init_qm_info(struct qed_hwfn *p_hwfn, bool b_sleepable) u8 num_vports, vf_offset = 0, i, vport_id, num_ports, curr_queue = 0; struct qed_qm_info *qm_info = &p_hwfn->qm_info; struct init_qm_port_params *p_qm_port; + bool init_rdma_offload_pq = false; + bool init_pure_ack_pq = false; + bool init_ooo_pq = false; u16 num_pqs, multi_cos_tcs = 1; u8 pf_wfq = qm_info->pf_wfq; u32 pf_rl = qm_info->pf_rl; + u16 num_pf_rls = 0; u16 num_vfs = 0; #ifdef CONFIG_QED_SRIOV @@ -174,6 +179,25 @@ static int qed_init_qm_info(struct qed_hwfn *p_hwfn, bool b_sleepable) num_pqs = multi_cos_tcs + num_vfs + 1; /* The '1' is for pure-LB */ num_vports = (u8)RESC_NUM(p_hwfn, QED_VPORT); + if (p_hwfn->hw_info.personality == QED_PCI_ETH_ROCE) { + num_pqs++; /* for RoCE queue */ + init_rdma_offload_pq = true; + /* we subtract num_vfs because each require a rate limiter, + * and one default rate limiter + */ + if (p_hwfn->pf_params.rdma_pf_params.enable_dcqcn) + num_pf_rls = RESC_NUM(p_hwfn, QED_RL) - num_vfs - 1; + + num_pqs += num_pf_rls; + qm_info->num_pf_rls = (u8) num_pf_rls; + } + + if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) { + num_pqs += 2; /* for iSCSI pure-ACK / OOO queue */ + init_pure_ack_pq = true; + init_ooo_pq = true; + } + /* Sanity checking that setup requires legal number of resources */ if (num_pqs > RESC_NUM(p_hwfn, QED_PQ)) { DP_ERR(p_hwfn, @@ -211,12 +235,22 @@ static int qed_init_qm_info(struct qed_hwfn *p_hwfn, bool b_sleepable) vport_id = (u8)RESC_START(p_hwfn, QED_VPORT); + /* First init rate limited queues */ + for (curr_queue = 0; curr_queue < num_pf_rls; curr_queue++) { + qm_info->qm_pq_params[curr_queue].vport_id = vport_id++; + qm_info->qm_pq_params[curr_queue].tc_id = + p_hwfn->hw_info.non_offload_tc; + qm_info->qm_pq_params[curr_queue].wrr_group = 1; + qm_info->qm_pq_params[curr_queue].rl_valid = 1; + } + /* First init per-TC PQs */ for (i = 0; i < multi_cos_tcs; i++) { struct init_qm_pq_params *params = &qm_info->qm_pq_params[curr_queue++]; - if (p_hwfn->hw_info.personality == QED_PCI_ETH) { + if (p_hwfn->hw_info.personality == QED_PCI_ETH_ROCE || + p_hwfn->hw_info.personality == QED_PCI_ETH) { params->vport_id = vport_id; params->tc_id = p_hwfn->hw_info.non_offload_tc; params->wrr_group = 1; @@ -236,6 +270,32 @@ static int qed_init_qm_info(struct qed_hwfn *p_hwfn, bool b_sleepable) curr_queue++; qm_info->offload_pq = 0; + if (init_rdma_offload_pq) { + qm_info->offload_pq = curr_queue; + qm_info->qm_pq_params[curr_queue].vport_id = vport_id; + qm_info->qm_pq_params[curr_queue].tc_id = + p_hwfn->hw_info.offload_tc; + qm_info->qm_pq_params[curr_queue].wrr_group = 1; + curr_queue++; + } + + if (init_pure_ack_pq) { + qm_info->pure_ack_pq = curr_queue; + qm_info->qm_pq_params[curr_queue].vport_id = vport_id; + qm_info->qm_pq_params[curr_queue].tc_id = + p_hwfn->hw_info.offload_tc; + qm_info->qm_pq_params[curr_queue].wrr_group = 1; + curr_queue++; + } + + if (init_ooo_pq) { + qm_info->ooo_pq = curr_queue; + qm_info->qm_pq_params[curr_queue].vport_id = vport_id; + qm_info->qm_pq_params[curr_queue].tc_id = DCBX_ISCSI_OOO_TC; + qm_info->qm_pq_params[curr_queue].wrr_group = 1; + curr_queue++; + } + /* Then init per-VF PQs */ vf_offset = curr_queue; for (i = 0; i < num_vfs; i++) { @@ -244,6 +304,7 @@ static int qed_init_qm_info(struct qed_hwfn *p_hwfn, bool b_sleepable) qm_info->qm_pq_params[curr_queue].tc_id = p_hwfn->hw_info.non_offload_tc; qm_info->qm_pq_params[curr_queue].wrr_group = 1; + qm_info->qm_pq_params[curr_queue].rl_valid = 1; curr_queue++; } @@ -256,7 +317,10 @@ static int qed_init_qm_info(struct qed_hwfn *p_hwfn, bool b_sleepable) for (i = 0; i < num_ports; i++) { p_qm_port = &qm_info->qm_port_params[i]; p_qm_port->active = 1; - p_qm_port->num_active_phys_tcs = 4; + if (num_ports == 4) + p_qm_port->active_phys_tcs = 0x7; + else + p_qm_port->active_phys_tcs = 0x9f; p_qm_port->num_pbf_cmd_lines = PBF_MAX_CMD_LINES / num_ports; p_qm_port->num_btb_blocks = BTB_MAX_BLOCKS / num_ports; } @@ -366,21 +430,20 @@ int qed_resc_alloc(struct qed_dev *cdev) if (!p_hwfn->p_tx_cids) { DP_NOTICE(p_hwfn, "Failed to allocate memory for Tx Cids\n"); - rc = -ENOMEM; - goto alloc_err; + goto alloc_no_mem; } p_hwfn->p_rx_cids = kzalloc(rx_size, GFP_KERNEL); if (!p_hwfn->p_rx_cids) { DP_NOTICE(p_hwfn, "Failed to allocate memory for Rx Cids\n"); - rc = -ENOMEM; - goto alloc_err; + goto alloc_no_mem; } } for_each_hwfn(cdev, i) { struct qed_hwfn *p_hwfn = &cdev->hwfns[i]; + u32 n_eqes, num_cons; /* First allocate the context manager structure */ rc = qed_cxt_mngr_alloc(p_hwfn); @@ -429,18 +492,34 @@ int qed_resc_alloc(struct qed_dev *cdev) goto alloc_err; /* EQ */ - p_eq = qed_eq_alloc(p_hwfn, 256); - if (!p_eq) { - rc = -ENOMEM; + n_eqes = qed_chain_get_capacity(&p_hwfn->p_spq->chain); + if (p_hwfn->hw_info.personality == QED_PCI_ETH_ROCE) { + num_cons = qed_cxt_get_proto_cid_count(p_hwfn, + PROTOCOLID_ROCE, + 0) * 2; + n_eqes += num_cons + 2 * MAX_NUM_VFS_BB; + } else if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) { + num_cons = + qed_cxt_get_proto_cid_count(p_hwfn, + PROTOCOLID_ISCSI, 0); + n_eqes += 2 * num_cons; + } + + if (n_eqes > 0xFFFF) { + DP_ERR(p_hwfn, + "Cannot allocate 0x%x EQ elements. The maximum of a u16 chain is 0x%x\n", + n_eqes, 0xFFFF); goto alloc_err; } + + p_eq = qed_eq_alloc(p_hwfn, (u16) n_eqes); + if (!p_eq) + goto alloc_no_mem; p_hwfn->p_eq = p_eq; p_consq = qed_consq_alloc(p_hwfn); - if (!p_consq) { - rc = -ENOMEM; - goto alloc_err; - } + if (!p_consq) + goto alloc_no_mem; p_hwfn->p_consq = p_consq; /* DMA info initialization */ @@ -469,6 +548,8 @@ int qed_resc_alloc(struct qed_dev *cdev) return 0; +alloc_no_mem: + rc = -ENOMEM; alloc_err: qed_resc_free(cdev); return rc; @@ -634,6 +715,7 @@ static int qed_hw_init_common(struct qed_hwfn *p_hwfn, struct qed_qm_info *qm_info = &p_hwfn->qm_info; struct qed_qm_common_rt_init_params params; struct qed_dev *cdev = p_hwfn->cdev; + u16 num_pfs, pf_id; u32 concrete_fid; int rc = 0; u8 vf_id; @@ -682,9 +764,16 @@ static int qed_hw_init_common(struct qed_hwfn *p_hwfn, qed_wr(p_hwfn, p_ptt, PSWRQ2_REG_L2P_VALIDATE_VFID, 0); qed_wr(p_hwfn, p_ptt, PGLUE_B_REG_USE_CLIENTID_IN_TAG, 1); - /* Disable relaxed ordering in the PCI config space */ - qed_wr(p_hwfn, p_ptt, 0x20b4, - qed_rd(p_hwfn, p_ptt, 0x20b4) & ~0x10); + if (QED_IS_BB(p_hwfn->cdev)) { + num_pfs = NUM_OF_ENG_PFS(p_hwfn->cdev); + for (pf_id = 0; pf_id < num_pfs; pf_id++) { + qed_fid_pretend(p_hwfn, p_ptt, pf_id); + qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_ROCE, 0x0); + qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_TCP, 0x0); + } + /* pretend to original PF */ + qed_fid_pretend(p_hwfn, p_ptt, p_hwfn->rel_pf_id); + } for (vf_id = 0; vf_id < MAX_NUM_VFS_BB; vf_id++) { concrete_fid = qed_vfid_to_concrete(p_hwfn, vf_id); @@ -703,8 +792,31 @@ static int qed_hw_init_port(struct qed_hwfn *p_hwfn, { int rc = 0; - rc = qed_init_run(p_hwfn, p_ptt, PHASE_PORT, p_hwfn->port_id, - hw_mode); + rc = qed_init_run(p_hwfn, p_ptt, PHASE_PORT, p_hwfn->port_id, hw_mode); + if (rc != 0) + return rc; + + if (hw_mode & (1 << MODE_MF_SI)) { + u8 pf_id = 0; + + if (!qed_hw_init_first_eth(p_hwfn, p_ptt, &pf_id)) { + DP_VERBOSE(p_hwfn, NETIF_MSG_IFUP, + "PF[%08x] is first eth on engine\n", pf_id); + + /* We should have configured BIT for ppfid, i.e., the + * relative function number in the port. But there's a + * bug in LLH in BB where the ppfid is actually engine + * based, so we need to take this into account. + */ + qed_wr(p_hwfn, p_ptt, + NIG_REG_LLH_TAGMAC_DEF_PF_VECTOR, 1 << pf_id); + } + + /* Take the protocol-based hit vector if there is a hit, + * otherwise take the other vector. + */ + qed_wr(p_hwfn, p_ptt, NIG_REG_LLH_CLS_TYPE_DUALMODE, 0x2); + } return rc; } @@ -751,7 +863,8 @@ static int qed_hw_init_pf(struct qed_hwfn *p_hwfn, } /* Protocl Configuration */ - STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_TCP_RT_OFFSET, 0); + STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_TCP_RT_OFFSET, + (p_hwfn->hw_info.personality == QED_PCI_ISCSI) ? 1 : 0); STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_FCOE_RT_OFFSET, 0); STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_ROCE_RT_OFFSET, 0); @@ -773,6 +886,21 @@ static int qed_hw_init_pf(struct qed_hwfn *p_hwfn, /* Pure runtime initializations - directly to the HW */ qed_int_igu_init_pure_rt(p_hwfn, p_ptt, true, true); + if (hw_mode & (1 << MODE_MF_SI)) { + u8 pf_id = 0; + u32 val; + + if (!qed_hw_init_first_eth(p_hwfn, p_ptt, &pf_id)) { + if (p_hwfn->rel_pf_id == pf_id) { + DP_VERBOSE(p_hwfn, NETIF_MSG_IFUP, + "PF[%d] is first ETH on engine\n", + pf_id); + val = 1; + } + qed_wr(p_hwfn, p_ptt, PRS_REG_MSG_INFO, val); + } + } + if (b_hw_start) { /* enable interrupts */ qed_int_igu_enable(p_hwfn, p_ptt, int_mode); @@ -1213,8 +1341,9 @@ static void qed_hw_set_feat(struct qed_hwfn *p_hwfn) num_features); } -static void qed_hw_get_resc(struct qed_hwfn *p_hwfn) +static int qed_hw_get_resc(struct qed_hwfn *p_hwfn) { + u8 enabled_func_idx = p_hwfn->enabled_func_idx; u32 *resc_start = p_hwfn->hw_info.resc_start; u8 num_funcs = p_hwfn->num_funcs_on_engine; u32 *resc_num = p_hwfn->hw_info.resc_num; @@ -1238,14 +1367,22 @@ static void qed_hw_get_resc(struct qed_hwfn *p_hwfn) resc_num[QED_VPORT] = MAX_NUM_VPORTS_BB / num_funcs; resc_num[QED_RSS_ENG] = ETH_RSS_ENGINE_NUM_BB / num_funcs; resc_num[QED_PQ] = MAX_QM_TX_QUEUES_BB / num_funcs; - resc_num[QED_RL] = 8; + resc_num[QED_RL] = min_t(u32, 64, resc_num[QED_VPORT]); resc_num[QED_MAC] = ETH_NUM_MAC_FILTERS / num_funcs; resc_num[QED_VLAN] = (ETH_NUM_VLAN_FILTERS - 1 /*For vlan0*/) / num_funcs; - resc_num[QED_ILT] = 950; + resc_num[QED_ILT] = PXP_NUM_ILT_RECORDS_BB / num_funcs; for (i = 0; i < QED_MAX_RESC; i++) - resc_start[i] = resc_num[i] * p_hwfn->rel_pf_id; + resc_start[i] = resc_num[i] * enabled_func_idx; + + /* Sanity for ILT */ + if (RESC_END(p_hwfn, QED_ILT) > PXP_NUM_ILT_RECORDS_BB) { + DP_NOTICE(p_hwfn, "Can't assign ILT pages [%08x,...,%08x]\n", + RESC_START(p_hwfn, QED_ILT), + RESC_END(p_hwfn, QED_ILT) - 1); + return -EINVAL; + } qed_hw_set_feat(p_hwfn); @@ -1275,6 +1412,8 @@ static void qed_hw_get_resc(struct qed_hwfn *p_hwfn) p_hwfn->hw_info.resc_start[QED_VLAN], p_hwfn->hw_info.resc_num[QED_ILT], p_hwfn->hw_info.resc_start[QED_ILT]); + + return 0; } static int qed_hw_get_nvm_info(struct qed_hwfn *p_hwfn, @@ -1304,31 +1443,31 @@ static int qed_hw_get_nvm_info(struct qed_hwfn *p_hwfn, switch ((core_cfg & NVM_CFG1_GLOB_NETWORK_PORT_MODE_MASK) >> NVM_CFG1_GLOB_NETWORK_PORT_MODE_OFFSET) { - case NVM_CFG1_GLOB_NETWORK_PORT_MODE_DE_2X40G: + case NVM_CFG1_GLOB_NETWORK_PORT_MODE_BB_2X40G: p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_2X40G; break; - case NVM_CFG1_GLOB_NETWORK_PORT_MODE_DE_2X50G: + case NVM_CFG1_GLOB_NETWORK_PORT_MODE_2X50G: p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_2X50G; break; - case NVM_CFG1_GLOB_NETWORK_PORT_MODE_DE_1X100G: + case NVM_CFG1_GLOB_NETWORK_PORT_MODE_BB_1X100G: p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_1X100G; break; - case NVM_CFG1_GLOB_NETWORK_PORT_MODE_DE_4X10G_F: + case NVM_CFG1_GLOB_NETWORK_PORT_MODE_4X10G_F: p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_4X10G_F; break; - case NVM_CFG1_GLOB_NETWORK_PORT_MODE_DE_4X10G_E: + case NVM_CFG1_GLOB_NETWORK_PORT_MODE_BB_4X10G_E: p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_4X10G_E; break; - case NVM_CFG1_GLOB_NETWORK_PORT_MODE_DE_4X20G: + case NVM_CFG1_GLOB_NETWORK_PORT_MODE_BB_4X20G: p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_4X20G; break; - case NVM_CFG1_GLOB_NETWORK_PORT_MODE_DE_1X40G: + case NVM_CFG1_GLOB_NETWORK_PORT_MODE_1X40G: p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_1X40G; break; - case NVM_CFG1_GLOB_NETWORK_PORT_MODE_DE_2X25G: + case NVM_CFG1_GLOB_NETWORK_PORT_MODE_2X25G: p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_2X25G; break; - case NVM_CFG1_GLOB_NETWORK_PORT_MODE_DE_1X25G: + case NVM_CFG1_GLOB_NETWORK_PORT_MODE_1X25G: p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_1X25G; break; default: @@ -1373,7 +1512,7 @@ static int qed_hw_get_nvm_info(struct qed_hwfn *p_hwfn, case NVM_CFG1_PORT_DRV_LINK_SPEED_50G: link->speed.forced_speed = 50000; break; - case NVM_CFG1_PORT_DRV_LINK_SPEED_100G: + case NVM_CFG1_PORT_DRV_LINK_SPEED_BB_100G: link->speed.forced_speed = 100000; break; default: @@ -1429,14 +1568,20 @@ static int qed_hw_get_nvm_info(struct qed_hwfn *p_hwfn, if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ETHERNET) __set_bit(QED_DEV_CAP_ETH, &p_hwfn->hw_info.device_capabilities); + if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ISCSI) + __set_bit(QED_DEV_CAP_ISCSI, + &p_hwfn->hw_info.device_capabilities); + if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ROCE) + __set_bit(QED_DEV_CAP_ROCE, + &p_hwfn->hw_info.device_capabilities); return qed_mcp_fill_shmem_func_info(p_hwfn, p_ptt); } static void qed_get_num_funcs(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) { - u32 reg_function_hide, tmp, eng_mask; - u8 num_funcs; + u8 num_funcs, enabled_func_idx = p_hwfn->rel_pf_id; + u32 reg_function_hide, tmp, eng_mask, low_pfs_mask; num_funcs = MAX_NUM_PFS_BB; @@ -1466,9 +1611,19 @@ static void qed_get_num_funcs(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) num_funcs++; tmp >>= 0x1; } + + /* Get the PF index within the enabled functions */ + low_pfs_mask = (0x1 << p_hwfn->abs_pf_id) - 1; + tmp = reg_function_hide & eng_mask & low_pfs_mask; + while (tmp) { + if (tmp & 0x1) + enabled_func_idx--; + tmp >>= 0x1; + } } p_hwfn->num_funcs_on_engine = num_funcs; + p_hwfn->enabled_func_idx = enabled_func_idx; DP_VERBOSE(p_hwfn, NETIF_MSG_PROBE, @@ -1538,9 +1693,7 @@ qed_get_hw_info(struct qed_hwfn *p_hwfn, qed_get_num_funcs(p_hwfn, p_ptt); - qed_hw_get_resc(p_hwfn); - - return rc; + return qed_hw_get_resc(p_hwfn); } static int qed_get_dev_info(struct qed_dev *cdev) @@ -1737,92 +1890,285 @@ void qed_hw_remove(struct qed_dev *cdev) qed_iov_free_hw_info(cdev); } -int qed_chain_alloc(struct qed_dev *cdev, - enum qed_chain_use_mode intended_use, - enum qed_chain_mode mode, - u16 num_elems, - size_t elem_size, - struct qed_chain *p_chain) +static void qed_chain_free_next_ptr(struct qed_dev *cdev, + struct qed_chain *p_chain) +{ + void *p_virt = p_chain->p_virt_addr, *p_virt_next = NULL; + dma_addr_t p_phys = p_chain->p_phys_addr, p_phys_next = 0; + struct qed_chain_next *p_next; + u32 size, i; + + if (!p_virt) + return; + + size = p_chain->elem_size * p_chain->usable_per_page; + + for (i = 0; i < p_chain->page_cnt; i++) { + if (!p_virt) + break; + + p_next = (struct qed_chain_next *)((u8 *)p_virt + size); + p_virt_next = p_next->next_virt; + p_phys_next = HILO_DMA_REGPAIR(p_next->next_phys); + + dma_free_coherent(&cdev->pdev->dev, + QED_CHAIN_PAGE_SIZE, p_virt, p_phys); + + p_virt = p_virt_next; + p_phys = p_phys_next; + } +} + +static void qed_chain_free_single(struct qed_dev *cdev, + struct qed_chain *p_chain) +{ + if (!p_chain->p_virt_addr) + return; + + dma_free_coherent(&cdev->pdev->dev, + QED_CHAIN_PAGE_SIZE, + p_chain->p_virt_addr, p_chain->p_phys_addr); +} + +static void qed_chain_free_pbl(struct qed_dev *cdev, struct qed_chain *p_chain) +{ + void **pp_virt_addr_tbl = p_chain->pbl.pp_virt_addr_tbl; + u32 page_cnt = p_chain->page_cnt, i, pbl_size; + u8 *p_pbl_virt = p_chain->pbl.p_virt_table; + + if (!pp_virt_addr_tbl) + return; + + if (!p_chain->pbl.p_virt_table) + goto out; + + for (i = 0; i < page_cnt; i++) { + if (!pp_virt_addr_tbl[i]) + break; + + dma_free_coherent(&cdev->pdev->dev, + QED_CHAIN_PAGE_SIZE, + pp_virt_addr_tbl[i], + *(dma_addr_t *)p_pbl_virt); + + p_pbl_virt += QED_CHAIN_PBL_ENTRY_SIZE; + } + + pbl_size = page_cnt * QED_CHAIN_PBL_ENTRY_SIZE; + dma_free_coherent(&cdev->pdev->dev, + pbl_size, + p_chain->pbl.p_virt_table, p_chain->pbl.p_phys_table); +out: + vfree(p_chain->pbl.pp_virt_addr_tbl); +} + +void qed_chain_free(struct qed_dev *cdev, struct qed_chain *p_chain) { - dma_addr_t p_pbl_phys = 0; - void *p_pbl_virt = NULL; + switch (p_chain->mode) { + case QED_CHAIN_MODE_NEXT_PTR: + qed_chain_free_next_ptr(cdev, p_chain); + break; + case QED_CHAIN_MODE_SINGLE: + qed_chain_free_single(cdev, p_chain); + break; + case QED_CHAIN_MODE_PBL: + qed_chain_free_pbl(cdev, p_chain); + break; + } +} + +static int +qed_chain_alloc_sanity_check(struct qed_dev *cdev, + enum qed_chain_cnt_type cnt_type, + size_t elem_size, u32 page_cnt) +{ + u64 chain_size = ELEMS_PER_PAGE(elem_size) * page_cnt; + + /* The actual chain size can be larger than the maximal possible value + * after rounding up the requested elements number to pages, and after + * taking into acount the unusuable elements (next-ptr elements). + * The size of a "u16" chain can be (U16_MAX + 1) since the chain + * size/capacity fields are of a u32 type. + */ + if ((cnt_type == QED_CHAIN_CNT_TYPE_U16 && + chain_size > 0x10000) || + (cnt_type == QED_CHAIN_CNT_TYPE_U32 && + chain_size > 0x100000000ULL)) { + DP_NOTICE(cdev, + "The actual chain size (0x%llx) is larger than the maximal possible value\n", + chain_size); + return -EINVAL; + } + + return 0; +} + +static int +qed_chain_alloc_next_ptr(struct qed_dev *cdev, struct qed_chain *p_chain) +{ + void *p_virt = NULL, *p_virt_prev = NULL; dma_addr_t p_phys = 0; - void *p_virt = NULL; - u16 page_cnt = 0; - size_t size; + u32 i; - if (mode == QED_CHAIN_MODE_SINGLE) - page_cnt = 1; - else - page_cnt = QED_CHAIN_PAGE_CNT(num_elems, elem_size, mode); + for (i = 0; i < p_chain->page_cnt; i++) { + p_virt = dma_alloc_coherent(&cdev->pdev->dev, + QED_CHAIN_PAGE_SIZE, + &p_phys, GFP_KERNEL); + if (!p_virt) { + DP_NOTICE(cdev, "Failed to allocate chain memory\n"); + return -ENOMEM; + } + + if (i == 0) { + qed_chain_init_mem(p_chain, p_virt, p_phys); + qed_chain_reset(p_chain); + } else { + qed_chain_init_next_ptr_elem(p_chain, p_virt_prev, + p_virt, p_phys); + } + + p_virt_prev = p_virt; + } + /* Last page's next element should point to the beginning of the + * chain. + */ + qed_chain_init_next_ptr_elem(p_chain, p_virt_prev, + p_chain->p_virt_addr, + p_chain->p_phys_addr); + + return 0; +} + +static int +qed_chain_alloc_single(struct qed_dev *cdev, struct qed_chain *p_chain) +{ + dma_addr_t p_phys = 0; + void *p_virt = NULL; - size = page_cnt * QED_CHAIN_PAGE_SIZE; p_virt = dma_alloc_coherent(&cdev->pdev->dev, - size, &p_phys, GFP_KERNEL); + QED_CHAIN_PAGE_SIZE, &p_phys, GFP_KERNEL); if (!p_virt) { - DP_NOTICE(cdev, "Failed to allocate chain mem\n"); - goto nomem; + DP_NOTICE(cdev, "Failed to allocate chain memory\n"); + return -ENOMEM; } - if (mode == QED_CHAIN_MODE_PBL) { - size = page_cnt * QED_CHAIN_PBL_ENTRY_SIZE; - p_pbl_virt = dma_alloc_coherent(&cdev->pdev->dev, - size, &p_pbl_phys, - GFP_KERNEL); - if (!p_pbl_virt) { - DP_NOTICE(cdev, "Failed to allocate chain pbl mem\n"); - goto nomem; - } + qed_chain_init_mem(p_chain, p_virt, p_phys); + qed_chain_reset(p_chain); - qed_chain_pbl_init(p_chain, p_virt, p_phys, page_cnt, - (u8)elem_size, intended_use, - p_pbl_phys, p_pbl_virt); - } else { - qed_chain_init(p_chain, p_virt, p_phys, page_cnt, - (u8)elem_size, intended_use, mode); + return 0; +} + +static int qed_chain_alloc_pbl(struct qed_dev *cdev, struct qed_chain *p_chain) +{ + u32 page_cnt = p_chain->page_cnt, size, i; + dma_addr_t p_phys = 0, p_pbl_phys = 0; + void **pp_virt_addr_tbl = NULL; + u8 *p_pbl_virt = NULL; + void *p_virt = NULL; + + size = page_cnt * sizeof(*pp_virt_addr_tbl); + pp_virt_addr_tbl = vmalloc(size); + if (!pp_virt_addr_tbl) { + DP_NOTICE(cdev, + "Failed to allocate memory for the chain virtual addresses table\n"); + return -ENOMEM; } + memset(pp_virt_addr_tbl, 0, size); - return 0; + /* The allocation of the PBL table is done with its full size, since it + * is expected to be successive. + * qed_chain_init_pbl_mem() is called even in a case of an allocation + * failure, since pp_virt_addr_tbl was previously allocated, and it + * should be saved to allow its freeing during the error flow. + */ + size = page_cnt * QED_CHAIN_PBL_ENTRY_SIZE; + p_pbl_virt = dma_alloc_coherent(&cdev->pdev->dev, + size, &p_pbl_phys, GFP_KERNEL); + qed_chain_init_pbl_mem(p_chain, p_pbl_virt, p_pbl_phys, + pp_virt_addr_tbl); + if (!p_pbl_virt) { + DP_NOTICE(cdev, "Failed to allocate chain pbl memory\n"); + return -ENOMEM; + } -nomem: - dma_free_coherent(&cdev->pdev->dev, - page_cnt * QED_CHAIN_PAGE_SIZE, - p_virt, p_phys); - dma_free_coherent(&cdev->pdev->dev, - page_cnt * QED_CHAIN_PBL_ENTRY_SIZE, - p_pbl_virt, p_pbl_phys); + for (i = 0; i < page_cnt; i++) { + p_virt = dma_alloc_coherent(&cdev->pdev->dev, + QED_CHAIN_PAGE_SIZE, + &p_phys, GFP_KERNEL); + if (!p_virt) { + DP_NOTICE(cdev, "Failed to allocate chain memory\n"); + return -ENOMEM; + } - return -ENOMEM; + if (i == 0) { + qed_chain_init_mem(p_chain, p_virt, p_phys); + qed_chain_reset(p_chain); + } + + /* Fill the PBL table with the physical address of the page */ + *(dma_addr_t *)p_pbl_virt = p_phys; + /* Keep the virtual address of the page */ + p_chain->pbl.pp_virt_addr_tbl[i] = p_virt; + + p_pbl_virt += QED_CHAIN_PBL_ENTRY_SIZE; + } + + return 0; } -void qed_chain_free(struct qed_dev *cdev, - struct qed_chain *p_chain) +int qed_chain_alloc(struct qed_dev *cdev, + enum qed_chain_use_mode intended_use, + enum qed_chain_mode mode, + enum qed_chain_cnt_type cnt_type, + u32 num_elems, size_t elem_size, struct qed_chain *p_chain) { - size_t size; + u32 page_cnt; + int rc = 0; - if (!p_chain->p_virt_addr) - return; + if (mode == QED_CHAIN_MODE_SINGLE) + page_cnt = 1; + else + page_cnt = QED_CHAIN_PAGE_CNT(num_elems, elem_size, mode); + + rc = qed_chain_alloc_sanity_check(cdev, cnt_type, elem_size, page_cnt); + if (rc) { + DP_NOTICE(cdev, + "Cannot allocate a chain with the given arguments:\n" + "[use_mode %d, mode %d, cnt_type %d, num_elems %d, elem_size %zu]\n", + intended_use, mode, cnt_type, num_elems, elem_size); + return rc; + } + + qed_chain_init_params(p_chain, page_cnt, (u8) elem_size, intended_use, + mode, cnt_type); - if (p_chain->mode == QED_CHAIN_MODE_PBL) { - size = p_chain->page_cnt * QED_CHAIN_PBL_ENTRY_SIZE; - dma_free_coherent(&cdev->pdev->dev, size, - p_chain->pbl.p_virt_table, - p_chain->pbl.p_phys_table); + switch (mode) { + case QED_CHAIN_MODE_NEXT_PTR: + rc = qed_chain_alloc_next_ptr(cdev, p_chain); + break; + case QED_CHAIN_MODE_SINGLE: + rc = qed_chain_alloc_single(cdev, p_chain); + break; + case QED_CHAIN_MODE_PBL: + rc = qed_chain_alloc_pbl(cdev, p_chain); + break; } + if (rc) + goto nomem; + + return 0; - size = p_chain->page_cnt * QED_CHAIN_PAGE_SIZE; - dma_free_coherent(&cdev->pdev->dev, size, - p_chain->p_virt_addr, - p_chain->p_phys_addr); +nomem: + qed_chain_free(cdev, p_chain); + return rc; } -int qed_fw_l2_queue(struct qed_hwfn *p_hwfn, - u16 src_id, u16 *dst_id) +int qed_fw_l2_queue(struct qed_hwfn *p_hwfn, u16 src_id, u16 *dst_id) { if (src_id >= RESC_NUM(p_hwfn, QED_L2_QUEUE)) { u16 min, max; - min = (u16)RESC_START(p_hwfn, QED_L2_QUEUE); + min = (u16) RESC_START(p_hwfn, QED_L2_QUEUE); max = min + RESC_NUM(p_hwfn, QED_L2_QUEUE); DP_NOTICE(p_hwfn, "l2_queue id [%d] is not valid, available indices [%d - %d]\n", @@ -1876,6 +2222,110 @@ int qed_fw_rss_eng(struct qed_hwfn *p_hwfn, return 0; } +static int qed_set_coalesce(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, + u32 hw_addr, void *p_eth_qzone, + size_t eth_qzone_size, u8 timeset) +{ + struct coalescing_timeset *p_coal_timeset; + + if (p_hwfn->cdev->int_coalescing_mode != QED_COAL_MODE_ENABLE) { + DP_NOTICE(p_hwfn, "Coalescing configuration not enabled\n"); + return -EINVAL; + } + + p_coal_timeset = p_eth_qzone; + memset(p_coal_timeset, 0, eth_qzone_size); + SET_FIELD(p_coal_timeset->value, COALESCING_TIMESET_TIMESET, timeset); + SET_FIELD(p_coal_timeset->value, COALESCING_TIMESET_VALID, 1); + qed_memcpy_to(p_hwfn, p_ptt, hw_addr, p_eth_qzone, eth_qzone_size); + + return 0; +} + +int qed_set_rxq_coalesce(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, + u16 coalesce, u8 qid, u16 sb_id) +{ + struct ustorm_eth_queue_zone eth_qzone; + u8 timeset, timer_res; + u16 fw_qid = 0; + u32 address; + int rc; + + /* Coalesce = (timeset << timer-resolution), timeset is 7bit wide */ + if (coalesce <= 0x7F) { + timer_res = 0; + } else if (coalesce <= 0xFF) { + timer_res = 1; + } else if (coalesce <= 0x1FF) { + timer_res = 2; + } else { + DP_ERR(p_hwfn, "Invalid coalesce value - %d\n", coalesce); + return -EINVAL; + } + timeset = (u8)(coalesce >> timer_res); + + rc = qed_fw_l2_queue(p_hwfn, (u16)qid, &fw_qid); + if (rc) + return rc; + + rc = qed_int_set_timer_res(p_hwfn, p_ptt, timer_res, sb_id, false); + if (rc) + goto out; + + address = BAR0_MAP_REG_USDM_RAM + USTORM_ETH_QUEUE_ZONE_OFFSET(fw_qid); + + rc = qed_set_coalesce(p_hwfn, p_ptt, address, ð_qzone, + sizeof(struct ustorm_eth_queue_zone), timeset); + if (rc) + goto out; + + p_hwfn->cdev->rx_coalesce_usecs = coalesce; +out: + return rc; +} + +int qed_set_txq_coalesce(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, + u16 coalesce, u8 qid, u16 sb_id) +{ + struct xstorm_eth_queue_zone eth_qzone; + u8 timeset, timer_res; + u16 fw_qid = 0; + u32 address; + int rc; + + /* Coalesce = (timeset << timer-resolution), timeset is 7bit wide */ + if (coalesce <= 0x7F) { + timer_res = 0; + } else if (coalesce <= 0xFF) { + timer_res = 1; + } else if (coalesce <= 0x1FF) { + timer_res = 2; + } else { + DP_ERR(p_hwfn, "Invalid coalesce value - %d\n", coalesce); + return -EINVAL; + } + timeset = (u8)(coalesce >> timer_res); + + rc = qed_fw_l2_queue(p_hwfn, (u16)qid, &fw_qid); + if (rc) + return rc; + + rc = qed_int_set_timer_res(p_hwfn, p_ptt, timer_res, sb_id, true); + if (rc) + goto out; + + address = BAR0_MAP_REG_XSDM_RAM + XSTORM_ETH_QUEUE_ZONE_OFFSET(fw_qid); + + rc = qed_set_coalesce(p_hwfn, p_ptt, address, ð_qzone, + sizeof(struct xstorm_eth_queue_zone), timeset); + if (rc) + goto out; + + p_hwfn->cdev->tx_coalesce_usecs = coalesce; +out: + return rc; +} + /* Calculate final WFQ values for all vports and configure them. * After this configuration each vport will have * approx min rate = min_pf_rate * (vport_wfq / QED_WFQ_UNIT) |