diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/queue/tx.c')
-rw-r--r-- | drivers/net/wireless/intel/iwlwifi/queue/tx.c | 101 |
1 files changed, 66 insertions, 35 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/queue/tx.c b/drivers/net/wireless/intel/iwlwifi/queue/tx.c index 0730657d54bf..726185d6fab8 100644 --- a/drivers/net/wireless/intel/iwlwifi/queue/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/queue/tx.c @@ -1,13 +1,15 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright (C) 2020-2021 Intel Corporation + * Copyright (C) 2020-2022 Intel Corporation */ #include <net/tso.h> #include <linux/tcp.h> #include "iwl-debug.h" #include "iwl-io.h" +#include "fw/api/commands.h" #include "fw/api/tx.h" +#include "fw/api/datapath.h" #include "queue/tx.h" #include "iwl-fh.h" #include "iwl-scd.h" @@ -41,13 +43,13 @@ static void iwl_pcie_gen2_update_byte_tbl(struct iwl_trans *trans, num_fetch_chunks = DIV_ROUND_UP(filled_tfd_size, 64) - 1; if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) { - struct iwl_gen3_bc_tbl *scd_bc_tbl_gen3 = txq->bc_tbl.addr; + struct iwl_gen3_bc_tbl_entry *scd_bc_tbl_gen3 = txq->bc_tbl.addr; /* Starting from AX210, the HW expects bytes */ WARN_ON(trans->txqs.bc_table_dword); WARN_ON(len > 0x3FFF); bc_ent = cpu_to_le16(len | (num_fetch_chunks << 14)); - scd_bc_tbl_gen3->tfd_offset[idx] = bc_ent; + scd_bc_tbl_gen3[idx].tfd_offset = bc_ent; } else { struct iwlagn_scd_bc_tbl *scd_bc_tbl = txq->bc_tbl.addr; @@ -189,7 +191,7 @@ static struct page *get_workaround_page(struct iwl_trans *trans, return NULL; /* set the chaining pointer to the previous page if there */ - *(void **)(page_address(ret) + PAGE_SIZE - sizeof(void *)) = *page_ptr; + *(void **)((u8 *)page_address(ret) + PAGE_SIZE - sizeof(void *)) = *page_ptr; *page_ptr = ret; return ret; @@ -314,7 +316,7 @@ alloc: return NULL; p->pos = page_address(p->page); /* set the chaining pointer to NULL */ - *(void **)(page_address(p->page) + PAGE_SIZE - sizeof(void *)) = NULL; + *(void **)((u8 *)page_address(p->page) + PAGE_SIZE - sizeof(void *)) = NULL; out: *page_ptr = p->page; get_page(p->page); @@ -963,7 +965,7 @@ void iwl_txq_free_tso_page(struct iwl_trans *trans, struct sk_buff *skb) while (next) { struct page *tmp = next; - next = *(void **)(page_address(next) + PAGE_SIZE - + next = *(void **)((u8 *)page_address(next) + PAGE_SIZE - sizeof(void *)); __free_page(tmp); } @@ -1083,9 +1085,8 @@ error: return -ENOMEM; } -static int iwl_txq_dyn_alloc_dma(struct iwl_trans *trans, - struct iwl_txq **intxq, int size, - unsigned int timeout) +static struct iwl_txq * +iwl_txq_dyn_alloc_dma(struct iwl_trans *trans, int size, unsigned int timeout) { size_t bc_tbl_size, bc_tbl_entries; struct iwl_txq *txq; @@ -1097,18 +1098,18 @@ static int iwl_txq_dyn_alloc_dma(struct iwl_trans *trans, bc_tbl_entries = bc_tbl_size / sizeof(u16); if (WARN_ON(size > bc_tbl_entries)) - return -EINVAL; + return ERR_PTR(-EINVAL); txq = kzalloc(sizeof(*txq), GFP_KERNEL); if (!txq) - return -ENOMEM; + return ERR_PTR(-ENOMEM); txq->bc_tbl.addr = dma_pool_alloc(trans->txqs.bc_pool, GFP_KERNEL, &txq->bc_tbl.dma); if (!txq->bc_tbl.addr) { IWL_ERR(trans, "Scheduler BC Table allocation failed\n"); kfree(txq); - return -ENOMEM; + return ERR_PTR(-ENOMEM); } ret = iwl_txq_alloc(trans, txq, size, false); @@ -1124,12 +1125,11 @@ static int iwl_txq_dyn_alloc_dma(struct iwl_trans *trans, txq->wd_timeout = msecs_to_jiffies(timeout); - *intxq = txq; - return 0; + return txq; error: iwl_txq_gen2_free_memory(trans, txq); - return ret; + return ERR_PTR(ret); } static int iwl_txq_alloc_response(struct iwl_trans *trans, struct iwl_txq *txq, @@ -1186,30 +1186,61 @@ error_free_resp: return ret; } -int iwl_txq_dyn_alloc(struct iwl_trans *trans, __le16 flags, u8 sta_id, u8 tid, - int cmd_id, int size, unsigned int timeout) +int iwl_txq_dyn_alloc(struct iwl_trans *trans, u32 flags, u32 sta_mask, + u8 tid, int size, unsigned int timeout) { - struct iwl_txq *txq = NULL; - struct iwl_tx_queue_cfg_cmd cmd = { - .flags = flags, - .sta_id = sta_id, - .tid = tid, - }; + struct iwl_txq *txq; + union { + struct iwl_tx_queue_cfg_cmd old; + struct iwl_scd_queue_cfg_cmd new; + } cmd; struct iwl_host_cmd hcmd = { - .id = cmd_id, - .len = { sizeof(cmd) }, - .data = { &cmd, }, .flags = CMD_WANT_SKB, }; int ret; - ret = iwl_txq_dyn_alloc_dma(trans, &txq, size, timeout); - if (ret) - return ret; + if (trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_BZ && + trans->hw_rev_step == SILICON_A_STEP) + size = 4096; + + txq = iwl_txq_dyn_alloc_dma(trans, size, timeout); + if (IS_ERR(txq)) + return PTR_ERR(txq); - cmd.tfdq_addr = cpu_to_le64(txq->dma_addr); - cmd.byte_cnt_addr = cpu_to_le64(txq->bc_tbl.dma); - cmd.cb_size = cpu_to_le32(TFD_QUEUE_CB_SIZE(size)); + if (trans->txqs.queue_alloc_cmd_ver == 0) { + memset(&cmd.old, 0, sizeof(cmd.old)); + cmd.old.tfdq_addr = cpu_to_le64(txq->dma_addr); + cmd.old.byte_cnt_addr = cpu_to_le64(txq->bc_tbl.dma); + cmd.old.cb_size = cpu_to_le32(TFD_QUEUE_CB_SIZE(size)); + cmd.old.flags = cpu_to_le16(flags | TX_QUEUE_CFG_ENABLE_QUEUE); + cmd.old.tid = tid; + + if (hweight32(sta_mask) != 1) { + ret = -EINVAL; + goto error; + } + cmd.old.sta_id = ffs(sta_mask) - 1; + + hcmd.id = SCD_QUEUE_CFG; + hcmd.len[0] = sizeof(cmd.old); + hcmd.data[0] = &cmd.old; + } else if (trans->txqs.queue_alloc_cmd_ver == 3) { + memset(&cmd.new, 0, sizeof(cmd.new)); + cmd.new.operation = cpu_to_le32(IWL_SCD_QUEUE_ADD); + cmd.new.u.add.tfdq_dram_addr = cpu_to_le64(txq->dma_addr); + cmd.new.u.add.bc_dram_addr = cpu_to_le64(txq->bc_tbl.dma); + cmd.new.u.add.cb_size = cpu_to_le32(TFD_QUEUE_CB_SIZE(size)); + cmd.new.u.add.flags = cpu_to_le32(flags); + cmd.new.u.add.sta_mask = cpu_to_le32(sta_mask); + cmd.new.u.add.tid = tid; + + hcmd.id = WIDE_ID(DATA_PATH_GROUP, SCD_QUEUE_CONFIG_CMD); + hcmd.len[0] = sizeof(cmd.new); + hcmd.data[0] = &cmd.new; + } else { + ret = -EOPNOTSUPP; + goto error; + } ret = iwl_trans_send_cmd(trans, &hcmd); if (ret) @@ -1307,10 +1338,10 @@ static inline dma_addr_t iwl_txq_gen1_tfd_tb_get_addr(struct iwl_trans *trans, dma_addr_t hi_len; if (trans->trans_cfg->use_tfh) { - struct iwl_tfh_tfd *tfd = _tfd; - struct iwl_tfh_tb *tb = &tfd->tbs[idx]; + struct iwl_tfh_tfd *tfh_tfd = _tfd; + struct iwl_tfh_tb *tfh_tb = &tfh_tfd->tbs[idx]; - return (dma_addr_t)(le64_to_cpu(tb->addr)); + return (dma_addr_t)(le64_to_cpu(tfh_tb->addr)); } tfd = _tfd; |