From patchwork Thu Jan 16 23:05:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Saleem, Shiraz" X-Patchwork-Id: 1224510 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org (client-ip=140.211.166.137; helo=fraxinus.osuosl.org; envelope-from=intel-wired-lan-bounces@osuosl.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=intel.com Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 47zKZ02xj0z9s29 for ; Fri, 17 Jan 2020 10:06:16 +1100 (AEDT) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id DC52386538; Thu, 16 Jan 2020 23:06:14 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Ndr5MHy3vFav; Thu, 16 Jan 2020 23:06:06 +0000 (UTC) Received: from ash.osuosl.org (ash.osuosl.org [140.211.166.34]) by fraxinus.osuosl.org (Postfix) with ESMTP id 7D77886511; Thu, 16 Jan 2020 23:06:02 +0000 (UTC) X-Original-To: intel-wired-lan@lists.osuosl.org Delivered-To: intel-wired-lan@lists.osuosl.org Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by ash.osuosl.org (Postfix) with ESMTP id E568F1BF39D for ; Thu, 16 Jan 2020 23:05:49 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id E102987F78 for ; Thu, 16 Jan 2020 23:05:49 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9NRZF79Fe8l7 for ; Thu, 16 Jan 2020 23:05:33 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by hemlock.osuosl.org (Postfix) with ESMTPS id C4A3687FC9 for ; Thu, 16 Jan 2020 23:05:32 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 16 Jan 2020 15:05:32 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,327,1574150400"; d="scan'208";a="424242172" Received: from nmaznan-mobl1.gar.corp.intel.com (HELO ssaleem-MOBL.amr.corp.intel.com) ([10.254.99.102]) by fmsmga005.fm.intel.com with ESMTP; 16 Jan 2020 15:05:31 -0800 From: Shiraz Saleem To: intel-wired-lan@lists.osuosl.org Date: Thu, 16 Jan 2020 17:05:04 -0600 Message-Id: <20200116230508.1814-13-shiraz.saleem@intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20200116230508.1814-1-shiraz.saleem@intel.com> References: <20200116230508.1814-1-shiraz.saleem@intel.com> MIME-Version: 1.0 Subject: [Intel-wired-lan] [PATCH RFC rdma 12/16] RDMA/irdma: Add miscellaneous utility definitions X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mustafa Ismail , Shiraz Saleem Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" From: Mustafa Ismail Add miscellaneous utility functions and headers. Signed-off-by: Mustafa Ismail Signed-off-by: Shiraz Saleem --- drivers/infiniband/hw/irdma/osdep.h | 106 ++ drivers/infiniband/hw/irdma/protos.h | 91 ++ drivers/infiniband/hw/irdma/status.h | 69 + drivers/infiniband/hw/irdma/utils.c | 2407 ++++++++++++++++++++++++++++++++++ 4 files changed, 2673 insertions(+) create mode 100644 drivers/infiniband/hw/irdma/osdep.h create mode 100644 drivers/infiniband/hw/irdma/protos.h create mode 100644 drivers/infiniband/hw/irdma/status.h create mode 100644 drivers/infiniband/hw/irdma/utils.c diff --git a/drivers/infiniband/hw/irdma/osdep.h b/drivers/infiniband/hw/irdma/osdep.h new file mode 100644 index 0000000..c02e33f --- /dev/null +++ b/drivers/infiniband/hw/irdma/osdep.h @@ -0,0 +1,106 @@ +/* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB */ +/* Copyright (c) 2015 - 2019 Intel Corporation */ +#ifndef IRDMA_OSDEP_H +#define IRDMA_OSDEP_H + +#include +#include +#include +#include +#include +#include +#include +#include +/* get readq/writeq support for 32 bit kernels, use the low-first version */ +#include + +#define STATS_TIMER_DELAY 60000 +#define rfdev_to_dev(ptr) (&((ptr)->hw->pdev->dev)) +#define to_ibdev(iwdev) (&((iwdev)->iwibdev->ibdev)) +#define hw_to_dev(hw) (&(hw)->pdev->dev) +#define irdma_debug_buf(dev, prefix, desc, buf, size) \ + print_hex_dump_debug(prefix ": " desc " ", \ + DUMP_PREFIX_OFFSET, \ + 16, 8, buf, size, false) + +struct irdma_dma_info { + dma_addr_t *dmaaddrs; +}; + +struct irdma_dma_mem { + void *va; + dma_addr_t pa; + u32 size; +} __packed; + +struct irdma_virt_mem { + void *va; + u32 size; +} __packed; + +struct irdma_sc_vsi; +struct irdma_sc_dev; +struct irdma_sc_qp; +struct irdma_puda_buf; +struct irdma_puda_cmpl_info; +struct irdma_update_sds_info; +struct irdma_hmc_fcn_info; +struct irdma_virtchnl_work_info; +struct irdma_manage_vf_pble_info; +struct irdma_hw; +struct irdma_pci_f; + +u8 __iomem *irdma_get_hw_addr(void *dev); +void irdma_ieq_mpa_crc_ae(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp); +enum irdma_status_code irdma_vf_wait_vchnl_resp(struct irdma_sc_dev *dev); +bool irdma_vf_clear_to_send(struct irdma_sc_dev *dev); +void irdma_add_dev_ref(struct irdma_sc_dev *dev); +void irdma_put_dev_ref(struct irdma_sc_dev *dev); +enum irdma_status_code irdma_ieq_check_mpacrc(struct shash_desc *desc, + void *addr, u32 len, u32 val); +struct irdma_sc_qp *irdma_ieq_get_qp(struct irdma_sc_dev *dev, + struct irdma_puda_buf *buf); +void irdma_send_ieq_ack(struct irdma_sc_qp *qp); +void irdma_ieq_update_tcpip_info(struct irdma_puda_buf *buf, u16 len, + u32 seqnum); +void irdma_free_hash_desc(struct shash_desc *hash_desc); +enum irdma_status_code irdma_init_hash_desc(struct shash_desc **hash_desc); +enum irdma_status_code +irdma_puda_get_tcpip_info(struct irdma_puda_cmpl_info *info, + struct irdma_puda_buf *buf); +enum irdma_status_code irdma_cqp_sds_cmd(struct irdma_sc_dev *dev, + struct irdma_update_sds_info *info); +enum irdma_status_code +irdma_cqp_manage_hmc_fcn_cmd(struct irdma_sc_dev *dev, + struct irdma_hmc_fcn_info *hmcfcninfo); +enum irdma_status_code +irdma_cqp_query_fpm_val_cmd(struct irdma_sc_dev *dev, + struct irdma_dma_mem *val_mem, u8 hmc_fn_id); +enum irdma_status_code +irdma_cqp_commit_fpm_val_cmd(struct irdma_sc_dev *dev, + struct irdma_dma_mem *val_mem, u8 hmc_fn_id); +enum irdma_status_code irdma_alloc_query_fpm_buf(struct irdma_sc_dev *dev, + struct irdma_dma_mem *mem); +enum irdma_status_code +irdma_cqp_manage_vf_pble_bp(struct irdma_sc_dev *dev, + struct irdma_manage_vf_pble_info *info); +void irdma_cqp_spawn_worker(struct irdma_sc_dev *dev, + struct irdma_virtchnl_work_info *work_info, + u32 iw_vf_idx); +void *irdma_remove_cqp_head(struct irdma_sc_dev *dev); +enum irdma_status_code irdma_qp_suspend_resume(struct irdma_sc_qp *qp, + bool suspend); +void irdma_term_modify_qp(struct irdma_sc_qp *qp, u8 next_state, u8 term, + u8 term_len); +void irdma_terminate_done(struct irdma_sc_qp *qp, int timeout_occurred); +void irdma_terminate_start_timer(struct irdma_sc_qp *qp); +void irdma_terminate_del_timer(struct irdma_sc_qp *qp); +enum irdma_status_code +irdma_hw_manage_vf_pble_bp(struct irdma_pci_f *rf, + struct irdma_manage_vf_pble_info *info, bool wait); +void irdma_hw_stats_start_timer(struct irdma_sc_vsi *vsi); +void irdma_hw_stats_stop_timer(struct irdma_sc_vsi *vsi); +void wr32(struct irdma_hw *hw, u32 reg, u32 val); +u32 rd32(struct irdma_hw *hw, u32 reg); +u64 rd64(struct irdma_hw *hw, u32 reg); +#endif /* IRDMA_OSDEP_H */ diff --git a/drivers/infiniband/hw/irdma/protos.h b/drivers/infiniband/hw/irdma/protos.h new file mode 100644 index 0000000..c9e5ef7 --- /dev/null +++ b/drivers/infiniband/hw/irdma/protos.h @@ -0,0 +1,91 @@ +/* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB */ +/* Copyright (c) 2019 Intel Corporation */ +#ifndef IRDMA_PROTOS_H +#define IRDMA_PROTOS_H + +#define PAUSE_TIMER_VAL 0xffff +#define REFRESH_THRESHOLD 0x7fff +#define HIGH_THRESHOLD 0x800 +#define LOW_THRESHOLD 0x200 +#define ALL_TC2PFC 0xff +#define CQP_COMPL_WAIT_TIME_MS 10 +#define CQP_TIMEOUT_THRESHOLD 500 + +/* init operations */ +enum irdma_status_code irdma_sc_ctrl_init(enum irdma_vers ver, + struct irdma_sc_dev *dev, + struct irdma_device_init_info *info); +void irdma_sc_rt_init(struct irdma_sc_dev *dev); +void irdma_sc_cqp_post_sq(struct irdma_sc_cqp *cqp); +__le64 *irdma_sc_cqp_get_next_send_wqe(struct irdma_sc_cqp *cqp, u64 scratch); +enum irdma_status_code +irdma_sc_mr_fast_register(struct irdma_sc_qp *qp, + struct irdma_fast_reg_stag_info *info, bool post_sq); +/* HMC/FPM functions */ +enum irdma_status_code irdma_sc_init_iw_hmc(struct irdma_sc_dev *dev, + u8 hmc_fn_id); +/* stats misc */ +enum irdma_status_code +irdma_cqp_gather_stats_cmd(struct irdma_sc_dev *dev, + struct irdma_vsi_pestat *pestat, bool wait); +enum irdma_status_code +irdma_cqp_ws_node_cmd(struct irdma_sc_dev *dev, u8 cmd, + struct irdma_ws_node_info *node_info); +enum irdma_status_code irdma_cqp_up_map_cmd(struct irdma_sc_dev *dev, u8 cmd, + struct irdma_up_info *map_info); +enum irdma_status_code irdma_cqp_ceq_cmd(struct irdma_sc_dev *dev, + struct irdma_sc_ceq *sc_ceq, u8 op); +enum irdma_status_code +irdma_cqp_stats_inst_cmd(struct irdma_sc_vsi *vsi, u8 cmd, + struct irdma_stats_inst_info *stats_info); +u16 irdma_alloc_ws_node_id(struct irdma_sc_dev *dev); +void irdma_free_ws_node_id(struct irdma_sc_dev *dev, u16 node_id); +void irdma_update_stats(struct irdma_dev_hw_stats *hw_stats, + struct irdma_gather_stats *gather_stats, + struct irdma_gather_stats *last_gather_stats); +/* vsi functions */ +enum irdma_status_code irdma_vsi_stats_init(struct irdma_sc_vsi *vsi, + struct irdma_vsi_stats_info *info); +void irdma_vsi_stats_free(struct irdma_sc_vsi *vsi); +void irdma_sc_vsi_init(struct irdma_sc_vsi *vsi, + struct irdma_vsi_init_info *info); +enum irdma_status_code irdma_sc_add_cq_ctx(struct irdma_sc_ceq *ceq, + struct irdma_sc_cq *cq); +void irdma_sc_remove_cq_ctx(struct irdma_sc_ceq *ceq, struct irdma_sc_cq *cq); +/* misc L2 param change functions */ +void irdma_change_l2params(struct irdma_sc_vsi *vsi, + struct irdma_l2params *l2params); +void irdma_suspend_qps(struct irdma_sc_vsi *vsi); +void irdma_qp_add_qos(struct irdma_sc_qp *qp); +void irdma_qp_rem_qos(struct irdma_sc_qp *qp); +struct irdma_sc_qp *irdma_get_qp_from_list(struct list_head *head, + struct irdma_sc_qp *qp); +void irdma_reinitialize_ieq(struct irdma_sc_vsi *vsi); +u16 irdma_alloc_ws_node_id(struct irdma_sc_dev *dev); +void irdma_free_ws_node_id(struct irdma_sc_dev *dev, u16 node_id); +/* terminate functions*/ +void irdma_terminate_send_fin(struct irdma_sc_qp *qp); + +void irdma_terminate_connection(struct irdma_sc_qp *qp, + struct irdma_aeqe_info *info); + +void irdma_terminate_received(struct irdma_sc_qp *qp, + struct irdma_aeqe_info *info); +/* dynamic memory allocation */ +/* misc */ +u8 irdma_get_encoded_wqe_size(u32 wqsize, bool cqpsq); +void irdma_modify_qp_to_err(struct irdma_sc_qp *sc_qp); +enum irdma_status_code +irdma_sc_static_hmc_pages_allocated(struct irdma_sc_cqp *cqp, u64 scratch, + u8 hmc_fn_id, bool post_sq, + bool poll_registers); +enum irdma_status_code irdma_cfg_fpm_val(struct irdma_sc_dev *dev, + u32 qp_count); +enum irdma_status_code irdma_get_rdma_features(struct irdma_sc_dev *dev); +void free_sd_mem(struct irdma_sc_dev *dev); +enum irdma_status_code irdma_process_cqp_cmd(struct irdma_sc_dev *dev, + struct cqp_cmds_info *pcmdinfo); +enum irdma_status_code irdma_process_bh(struct irdma_sc_dev *dev); +enum irdma_status_code irdma_cqp_sds_cmd(struct irdma_sc_dev *dev, + struct irdma_update_sds_info *info); +#endif /* IRDMA_PROTOS_H */ diff --git a/drivers/infiniband/hw/irdma/status.h b/drivers/infiniband/hw/irdma/status.h new file mode 100644 index 0000000..e894b6b --- /dev/null +++ b/drivers/infiniband/hw/irdma/status.h @@ -0,0 +1,69 @@ +/* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB */ +/* Copyright (c) 2015 - 2019 Intel Corporation */ +#ifndef IRDMA_STATUS_H +#define IRDMA_STATUS_H + +/* Error Codes */ +enum irdma_status_code { + IRDMA_SUCCESS = 0, + IRDMA_ERR_NVM = -1, + IRDMA_ERR_NVM_CHECKSUM = -2, + IRDMA_ERR_CFG = -4, + IRDMA_ERR_PARAM = -5, + IRDMA_ERR_DEVICE_NOT_SUPPORTED = -6, + IRDMA_ERR_RESET_FAILED = -7, + IRDMA_ERR_SWFW_SYNC = -8, + IRDMA_ERR_NO_MEMORY = -9, + IRDMA_ERR_BAD_PTR = -10, + IRDMA_ERR_INVALID_PD_ID = -11, + IRDMA_ERR_INVALID_QP_ID = -12, + IRDMA_ERR_INVALID_CQ_ID = -13, + IRDMA_ERR_INVALID_CEQ_ID = -14, + IRDMA_ERR_INVALID_AEQ_ID = -15, + IRDMA_ERR_INVALID_SIZE = -16, + IRDMA_ERR_INVALID_ARP_INDEX = -17, + IRDMA_ERR_INVALID_FPM_FUNC_ID = -18, + IRDMA_ERR_QP_INVALID_MSG_SIZE = -19, + IRDMA_ERR_QP_TOOMANY_WRS_POSTED = -20, + IRDMA_ERR_INVALID_FRAG_COUNT = -21, + IRDMA_ERR_Q_EMPTY = -22, + IRDMA_ERR_INVALID_ALIGNMENT = -23, + IRDMA_ERR_FLUSHED_Q = -24, + IRDMA_ERR_INVALID_PUSH_PAGE_INDEX = -25, + IRDMA_ERR_INVALID_INLINE_DATA_SIZE = -26, + IRDMA_ERR_TIMEOUT = -27, + IRDMA_ERR_OPCODE_MISMATCH = -28, + IRDMA_ERR_CQP_COMPL_ERROR = -29, + IRDMA_ERR_INVALID_VF_ID = -30, + IRDMA_ERR_INVALID_HMCFN_ID = -31, + IRDMA_ERR_BACKING_PAGE_ERROR = -32, + IRDMA_ERR_NO_PBLCHUNKS_AVAILABLE = -33, + IRDMA_ERR_INVALID_PBLE_INDEX = -34, + IRDMA_ERR_INVALID_SD_INDEX = -35, + IRDMA_ERR_INVALID_PAGE_DESC_INDEX = -36, + IRDMA_ERR_INVALID_SD_TYPE = -37, + IRDMA_ERR_MEMCPY_FAILED = -38, + IRDMA_ERR_INVALID_HMC_OBJ_INDEX = -39, + IRDMA_ERR_INVALID_HMC_OBJ_COUNT = -40, + IRDMA_ERR_BUF_TOO_SHORT = -43, + IRDMA_ERR_BAD_IWARP_CQE = -44, + IRDMA_ERR_NVM_BLANK_MODE = -45, + IRDMA_ERR_NOT_IMPL = -46, + IRDMA_ERR_PE_DOORBELL_NOT_ENA = -47, + IRDMA_ERR_NOT_READY = -48, + IRDMA_NOT_SUPPORTED = -49, + IRDMA_ERR_FIRMWARE_API_VER = -50, + IRDMA_ERR_RING_FULL = -51, + IRDMA_ERR_MPA_CRC = -61, + IRDMA_ERR_NO_TXBUFS = -62, + IRDMA_ERR_SEQ_NUM = -63, + IRDMA_ERR_list_empty = -64, + IRDMA_ERR_INVALID_MAC_ADDR = -65, + IRDMA_ERR_BAD_STAG = -66, + IRDMA_ERR_CQ_COMPL_ERROR = -67, + IRDMA_ERR_Q_DESTROYED = -68, + IRDMA_ERR_INVALID_FEAT_CNT = -69, + IRDMA_ERR_REG_CQ_FULL = -70, + IRDMA_ERR_VF_MSG_ERROR = -71, +}; +#endif /* IRDMA_STATUS_H */ diff --git a/drivers/infiniband/hw/irdma/utils.c b/drivers/infiniband/hw/irdma/utils.c new file mode 100644 index 0000000..c755680 --- /dev/null +++ b/drivers/infiniband/hw/irdma/utils.c @@ -0,0 +1,2407 @@ +// SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB +/* Copyright (c) 2015 - 2019 Intel Corporation */ +#include +#include +#include +#include +#include +#include +#include "main.h" + +/** + * irdma_arp_table -manage arp table + * @rf: RDMA PCI function + * @ip_addr: ip address for device + * @ipv4: IPv4 flag + * @mac_addr: mac address ptr + * @action: modify, delete or add + */ +int irdma_arp_table(struct irdma_pci_f *rf, u32 *ip_addr, bool ipv4, + u8 *mac_addr, u32 action) +{ + unsigned long flags; + int arp_index; + u32 ip[4] = {}; + + if (ipv4) + ip[0] = *ip_addr; + else + memcpy(ip, ip_addr, sizeof(ip)); + + spin_lock_irqsave(&rf->arp_lock, flags); + for (arp_index = 0; (u32)arp_index < rf->arp_table_size; arp_index++) { + if (!memcmp(rf->arp_table[arp_index].ip_addr, ip, sizeof(ip))) + break; + } + + switch (action) { + case IRDMA_ARP_ADD: + if (arp_index != rf->arp_table_size) { + arp_index = -1; + break; + } + + arp_index = 0; + if (irdma_alloc_rsrc(rf, rf->allocated_arps, rf->arp_table_size, + (u32 *)&arp_index, &rf->next_arp_index)) { + arp_index = -1; + break; + } + + memcpy(rf->arp_table[arp_index].ip_addr, ip, + sizeof(rf->arp_table[arp_index].ip_addr)); + ether_addr_copy(rf->arp_table[arp_index].mac_addr, mac_addr); + break; + case IRDMA_ARP_RESOLVE: + if (arp_index == rf->arp_table_size) + arp_index = -1; + break; + case IRDMA_ARP_DELETE: + if (arp_index == rf->arp_table_size) { + arp_index = -1; + break; + } + + memset(rf->arp_table[arp_index].ip_addr, 0, + sizeof(rf->arp_table[arp_index].ip_addr)); + eth_zero_addr(rf->arp_table[arp_index].mac_addr); + irdma_free_rsrc(rf, rf->allocated_arps, arp_index); + break; + default: + arp_index = -1; + break; + } + + spin_unlock_irqrestore(&rf->arp_lock, flags); + return arp_index; +} + +/** + * irdma_add_arp - add a new arp entry if needed + * @rf: RDMA function + * @ip: IP address + * @ipv4: IPv4 flag + * @mac: MAC address + */ +int irdma_add_arp(struct irdma_pci_f *rf, u32 *ip, bool ipv4, u8 *mac) +{ + int arpidx; + + arpidx = irdma_arp_table(rf, &ip[0], ipv4, NULL, IRDMA_ARP_RESOLVE); + if (arpidx >= 0) { + if (ether_addr_equal(rf->arp_table[arpidx].mac_addr, mac)) + return arpidx; + + irdma_manage_arp_cache(rf, rf->arp_table[arpidx].mac_addr, ip, + ipv4, IRDMA_ARP_DELETE); + } + + irdma_manage_arp_cache(rf, mac, ip, ipv4, IRDMA_ARP_ADD); + + return irdma_arp_table(rf, ip, ipv4, NULL, IRDMA_ARP_RESOLVE); +} + +/** + * wr32 - write 32 bits to hw register + * @hw: hardware information including registers + * @reg: register offset + * @val: value to write to register + */ +inline void wr32(struct irdma_hw *hw, u32 reg, u32 val) +{ + writel(val, hw->hw_addr + reg); +} + +/** + * rd32 - read a 32 bit hw register + * @hw: hardware information including registers + * @reg: register offset + * + * Return value of register content + */ +inline u32 rd32(struct irdma_hw *hw, u32 reg) +{ + return readl(hw->hw_addr + reg); +} + +/** + * rd64 - read a 64 bit hw register + * @hw: hardware information including registers + * @reg: register offset + * + * Return value of register content + */ +inline u64 rd64(struct irdma_hw *hw, u32 reg) +{ + return readq(hw->hw_addr + reg); +} + +/** + * irdma_inetaddr_event - system notifier for ipv4 addr events + * @notifier: not used + * @event: event for notifier + * @ptr: if address + */ +int irdma_inetaddr_event(struct notifier_block *notifier, unsigned long event, + void *ptr) +{ + struct in_ifaddr *ifa = ptr; + struct net_device *netdev = ifa->ifa_dev->dev; + struct irdma_device *iwdev; + u32 local_ipaddr; + + iwdev = irdma_get_device(netdev); + if (!iwdev) + return NOTIFY_DONE; + + local_ipaddr = ntohl(ifa->ifa_address); + switch (event) { + case NETDEV_DOWN: + irdma_manage_arp_cache(iwdev->rf, netdev->dev_addr, + &local_ipaddr, true, IRDMA_ARP_DELETE); + irdma_if_notify(iwdev, netdev, &local_ipaddr, true, false); + break; + case NETDEV_UP: + /* Fall through */ + case NETDEV_CHANGEADDR: + irdma_add_arp(iwdev->rf, &local_ipaddr, true, netdev->dev_addr); + irdma_if_notify(iwdev, netdev, &local_ipaddr, true, true); + break; + default: + break; + } + + irdma_put_device(iwdev); + + return NOTIFY_DONE; +} + +/** + * irdma_inet6addr_event - system notifier for ipv6 addr events + * @notifier: not used + * @event: event for notifier + * @ptr: if address + */ +int irdma_inet6addr_event(struct notifier_block *notifier, unsigned long event, + void *ptr) +{ + struct inet6_ifaddr *ifa = ptr; + struct net_device *netdev = ifa->idev->dev; + struct irdma_device *iwdev; + u32 local_ipaddr6[4]; + + iwdev = irdma_get_device(netdev); + if (!iwdev) + return NOTIFY_DONE; + + irdma_copy_ip_ntohl(local_ipaddr6, ifa->addr.in6_u.u6_addr32); + switch (event) { + case NETDEV_DOWN: + irdma_manage_arp_cache(iwdev->rf, netdev->dev_addr, + local_ipaddr6, false, IRDMA_ARP_DELETE); + irdma_if_notify(iwdev, netdev, local_ipaddr6, false, false); + break; + case NETDEV_UP: + /* Fall through */ + case NETDEV_CHANGEADDR: + irdma_add_arp(iwdev->rf, local_ipaddr6, false, + netdev->dev_addr); + irdma_if_notify(iwdev, netdev, local_ipaddr6, false, true); + break; + default: + break; + } + + irdma_put_device(iwdev); + + return NOTIFY_DONE; +} + +/** + * irdma_net_event - system notifier for net events + * @notifier: not used + * @event: event for notifier + * @ptr: neighbor + */ +int irdma_net_event(struct notifier_block *notifier, unsigned long event, + void *ptr) +{ + struct neighbour *neigh = ptr; + struct irdma_device *iwdev; + __be32 *p; + u32 local_ipaddr; + + iwdev = irdma_get_device((struct net_device *)neigh->dev); + if (!iwdev) + return NOTIFY_DONE; + + switch (event) { + case NETEVENT_NEIGH_UPDATE: + p = (__be32 *)neigh->primary_key; + local_ipaddr = ntohl(*p); + if (neigh->nud_state & NUD_VALID) + irdma_add_arp(iwdev->rf, &local_ipaddr, false, + neigh->ha); + + else + irdma_manage_arp_cache(iwdev->rf, neigh->ha, + &local_ipaddr, false, + IRDMA_ARP_DELETE); + break; + default: + break; + } + + irdma_put_device(iwdev); + + return NOTIFY_DONE; +} + +/** + * irdma_netdevice_event - system notifier for netdev events + * @notifier: not used + * @event: event for notifier + * @ptr: netdev + */ +int irdma_netdevice_event(struct notifier_block *notifier, unsigned long event, + void *ptr) +{ + struct irdma_device *iwdev; + struct net_device *netdev = netdev_notifier_info_to_dev(ptr); + + iwdev = irdma_get_device(netdev); + if (!iwdev) + return NOTIFY_DONE; + + iwdev->iw_status = 1; + switch (event) { + case NETDEV_DOWN: + iwdev->iw_status = 0; + /* Fall through */ + case NETDEV_UP: + irdma_port_ibevent(iwdev); + break; + default: + break; + } + irdma_put_device(iwdev); + + return NOTIFY_DONE; +} + +/** + * irdma_get_cqp_request - get cqp struct + * @cqp: device cqp ptr + * @wait: cqp to be used in wait mode + */ +struct irdma_cqp_request *irdma_get_cqp_request(struct irdma_cqp *cqp, + bool wait) +{ + struct irdma_cqp_request *cqp_request = NULL; + unsigned long flags; + + spin_lock_irqsave(&cqp->req_lock, flags); + if (!list_empty(&cqp->cqp_avail_reqs)) { + cqp_request = list_entry(cqp->cqp_avail_reqs.next, + struct irdma_cqp_request, list); + list_del_init(&cqp_request->list); + } + spin_unlock_irqrestore(&cqp->req_lock, flags); + if (!cqp_request) { + cqp_request = kzalloc(sizeof(*cqp_request), GFP_ATOMIC); + if (cqp_request) { + cqp_request->dynamic = true; + if (wait) + init_waitqueue_head(&cqp_request->waitq); + } + } + if (!cqp_request) { + dev_dbg(rfdev_to_dev(cqp->sc_cqp.dev), + "ERR: CQP Request Fail: No Memory"); + return NULL; + } + + if (wait) { + atomic_set(&cqp_request->refcount, 2); + cqp_request->waiting = true; + } else { + atomic_set(&cqp_request->refcount, 1); + } + memset(&cqp_request->compl_info, 0, sizeof(cqp_request->compl_info)); + + return cqp_request; +} + +/** + * irdma_free_cqp_request - free cqp request + * @cqp: cqp ptr + * @cqp_request: to be put back in cqp list + */ +void irdma_free_cqp_request(struct irdma_cqp *cqp, + struct irdma_cqp_request *cqp_request) +{ + unsigned long flags; + + if (cqp_request->dynamic) { + kfree(cqp_request); + } else { + cqp_request->request_done = false; + cqp_request->callback_fcn = NULL; + cqp_request->waiting = false; + + spin_lock_irqsave(&cqp->req_lock, flags); + list_add_tail(&cqp_request->list, &cqp->cqp_avail_reqs); + spin_unlock_irqrestore(&cqp->req_lock, flags); + } + wake_up(&cqp->remove_wq); +} + +/** + * irdma_put_cqp_request - dec ref count and free if 0 + * @cqp: cqp ptr + * @cqp_request: to be put back in cqp list + */ +void irdma_put_cqp_request(struct irdma_cqp *cqp, + struct irdma_cqp_request *cqp_request) +{ + if (atomic_dec_and_test(&cqp_request->refcount)) + irdma_free_cqp_request(cqp, cqp_request); +} + +/** + * irdma_free_pending_cqp_request -free pending cqp request objs + * @cqp: cqp ptr + * @cqp_request: to be put back in cqp list + */ +static void +irdma_free_pending_cqp_request(struct irdma_cqp *cqp, + struct irdma_cqp_request *cqp_request) +{ + if (cqp_request->waiting) { + cqp_request->compl_info.error = true; + cqp_request->request_done = true; + wake_up(&cqp_request->waitq); + } + wait_event_timeout(cqp->remove_wq, + atomic_read(&cqp_request->refcount) == 1, 1000); + irdma_put_cqp_request(cqp, cqp_request); +} + +/** + * irdma_cleanup_pending_cqp_op - clean-up cqp with no + * completions + * @rf: RDMA PCI function + */ +void irdma_cleanup_pending_cqp_op(struct irdma_pci_f *rf) +{ + struct irdma_sc_dev *dev = &rf->sc_dev; + struct irdma_cqp *cqp = &rf->cqp; + struct irdma_cqp_request *cqp_request = NULL; + struct cqp_cmds_info *pcmdinfo = NULL; + u32 i, pending_work, wqe_idx; + + pending_work = IRDMA_RING_USED_QUANTA(cqp->sc_cqp.sq_ring); + wqe_idx = IRDMA_RING_CURRENT_TAIL(cqp->sc_cqp.sq_ring); + for (i = 0; i < pending_work; i++) { + cqp_request = (struct irdma_cqp_request *)(unsigned long) + cqp->scratch_array[wqe_idx]; + if (cqp_request) + irdma_free_pending_cqp_request(cqp, cqp_request); + wqe_idx = (wqe_idx + 1) % IRDMA_RING_SIZE(cqp->sc_cqp.sq_ring); + } + + while (!list_empty(&dev->cqp_cmd_head)) { + pcmdinfo = (struct cqp_cmds_info *) + irdma_remove_cqp_head(dev); + cqp_request = + container_of(pcmdinfo, struct irdma_cqp_request, info); + if (cqp_request) + irdma_free_pending_cqp_request(cqp, cqp_request); + } +} + +/** + * irdma_free_qp_worker - worker for freeing QP resources + * @work: ptr to work struct + */ +static void irdma_free_qp_worker(struct work_struct *work) +{ + struct irdma_qp *iwqp = container_of(work, struct irdma_qp, work); + + irdma_free_qp_rsrc(iwqp->iwdev, iwqp, iwqp->ibqp.qp_num); +} + +/** + * irdma_free_qp - callback after destroy cqp completes + * @cqp_request: cqp request for destroy qp + */ +static void irdma_free_qp(struct irdma_cqp_request *cqp_request) +{ + struct irdma_sc_qp *qp = cqp_request->param; + struct irdma_qp *iwqp = qp->qp_uk.back_qp; + struct irdma_device *iwdev = iwqp->iwdev; + + INIT_WORK(&iwqp->work, irdma_free_qp_worker); + queue_work(iwdev->rf->free_qp_wq, &iwqp->work); +} + +/** + * irdma_wait_event - wait for completion + * @rf: RDMA PCI function + * @cqp_request: cqp request to wait + */ +static int irdma_wait_event(struct irdma_pci_f *rf, + struct irdma_cqp_request *cqp_request) +{ + struct cqp_cmds_info *info = &cqp_request->info; + struct irdma_cqp *iwcqp = &rf->cqp; + struct irdma_cqp_timeout cqp_timeout = {}; + bool cqp_error = false; + int err_code = 0; + + cqp_timeout.compl_cqp_cmds = + rf->sc_dev.cqp_cmd_stats[IRDMA_OP_CMPL_CMDS]; + do { + up(&iwcqp->cqp_compl_sem); + if (wait_event_timeout(cqp_request->waitq, + cqp_request->request_done, + msecs_to_jiffies(CQP_COMPL_WAIT_TIME_MS))) + break; + + rf->sc_dev.cqp_ops->check_cqp_progress(&cqp_timeout, + &rf->sc_dev); + + if (cqp_timeout.count < CQP_TIMEOUT_THRESHOLD) + continue; + + dev_dbg(rfdev_to_dev(&rf->sc_dev), + "ERR: error cqp command 0x%x timed out", + info->cqp_cmd); + err_code = -ETIME; + if (!rf->reset) { + rf->reset = true; + rf->gen_ops.request_reset(rf); + } + goto done; + } while (1); + + cqp_error = cqp_request->compl_info.error; + if (cqp_error) { + dev_dbg(rfdev_to_dev(&rf->sc_dev), + "ERR: error cqp command 0x%x completion maj = 0x%x min=0x%x\n", + info->cqp_cmd, cqp_request->compl_info.maj_err_code, + cqp_request->compl_info.min_err_code); + err_code = -EPROTO; + goto done; + } + +done: + irdma_put_cqp_request(iwcqp, cqp_request); + + return err_code; +} + +/** + * irdma_handle_cqp_op - process cqp command + * @rf: RDMA PCI function + * @cqp_request: cqp request to process + */ +enum irdma_status_code irdma_handle_cqp_op(struct irdma_pci_f *rf, + struct irdma_cqp_request + *cqp_request) +{ + struct irdma_sc_dev *dev = &rf->sc_dev; + enum irdma_status_code status; + struct cqp_cmds_info *info = &cqp_request->info; + int err_code = 0; + + if (rf->reset) { + irdma_free_cqp_request(&rf->cqp, cqp_request); + return IRDMA_ERR_CQP_COMPL_ERROR; + } + + status = irdma_process_cqp_cmd(dev, info); + if (status) { + dev_dbg(rfdev_to_dev(&rf->sc_dev), + "ERR: error cqp command 0x%x failed\n", info->cqp_cmd); + irdma_free_cqp_request(&rf->cqp, cqp_request); + return status; + } + + if (cqp_request->waiting) + err_code = irdma_wait_event(rf, cqp_request); + if (err_code) + status = IRDMA_ERR_CQP_COMPL_ERROR; + + return status; +} + +/** + * irdma_add_ref - add refcount for qp + * @ibqp: iqarp qp + */ +void irdma_add_ref(struct ib_qp *ibqp) +{ + struct irdma_qp *iwqp = (struct irdma_qp *)ibqp; + + atomic_inc(&iwqp->refcount); +} + +/** + * irdma_rem_ref - rem refcount for qp and free if 0 + * @ibqp: iqarp qp + */ +void irdma_rem_ref(struct ib_qp *ibqp) +{ + struct irdma_qp *iwqp; + enum irdma_status_code status; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + struct irdma_device *iwdev; + u32 qp_num; + unsigned long flags; + + iwqp = to_iwqp(ibqp); + iwdev = iwqp->iwdev; + spin_lock_irqsave(&iwdev->rf->qptable_lock, flags); + if (!atomic_dec_and_test(&iwqp->refcount)) { + spin_unlock_irqrestore(&iwdev->rf->qptable_lock, flags); + return; + } + + qp_num = iwqp->ibqp.qp_num; + iwdev->rf->qp_table[qp_num] = NULL; + spin_unlock_irqrestore(&iwdev->rf->qptable_lock, flags); + cqp_request = irdma_get_cqp_request(&iwdev->rf->cqp, false); + if (!cqp_request) + return; + + cqp_request->callback_fcn = irdma_free_qp; + cqp_request->param = (void *)&iwqp->sc_qp; + cqp_info = &cqp_request->info; + cqp_info->cqp_cmd = IRDMA_OP_QP_DESTROY; + cqp_info->post_sq = 1; + cqp_info->in.u.qp_destroy.qp = &iwqp->sc_qp; + cqp_info->in.u.qp_destroy.scratch = (uintptr_t)cqp_request; + cqp_info->in.u.qp_destroy.remove_hash_idx = true; + status = irdma_handle_cqp_op(iwdev->rf, cqp_request); + if (status) { + dev_dbg(rfdev_to_dev(&iwdev->rf->sc_dev), + "ERR: CQP-OP Destroy QP fail"); + INIT_WORK(&iwqp->work, irdma_free_qp_worker); + queue_work(iwdev->rf->free_qp_wq, &iwqp->work); + } +} + +/** + * irdma_get_qp - get qp address + * @device: iwarp device + * @qpn: qp number + */ +struct ib_qp *irdma_get_qp(struct ib_device *device, int qpn) +{ + struct irdma_device *iwdev = to_iwdev(device); + + if (qpn < IW_FIRST_QPN || qpn >= iwdev->rf->max_qp) + return NULL; + + return &iwdev->rf->qp_table[qpn]->ibqp; +} + +/** + * irdma_get_hw_addr - return hw addr + * @par: points to shared dev + */ +u8 __iomem *irdma_get_hw_addr(void *par) +{ + struct irdma_sc_dev *dev = par; + + return dev->hw->hw_addr; +} + +/** + * irdma_remove_cqp_head - return head entry and remove + * @dev: device + */ +void *irdma_remove_cqp_head(struct irdma_sc_dev *dev) +{ + struct list_head *entry; + struct list_head *list = &dev->cqp_cmd_head; + + if (list_empty(list)) + return NULL; + + entry = (void *)list->next; + list_del(entry); + + return (void *)entry; +} + +/** + * irdma_cqp_sds_cmd - create cqp command for sd + * @dev: hardware control device structure + * @sdinfo: information for sd cqp + * + */ +enum irdma_status_code irdma_cqp_sds_cmd(struct irdma_sc_dev *dev, + struct irdma_update_sds_info *sdinfo) +{ + enum irdma_status_code status; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + struct irdma_pci_f *rf = dev->back_dev; + + cqp_request = irdma_get_cqp_request(&rf->cqp, true); + if (!cqp_request) + return IRDMA_ERR_NO_MEMORY; + + cqp_info = &cqp_request->info; + memcpy(&cqp_info->in.u.update_pe_sds.info, sdinfo, + sizeof(cqp_info->in.u.update_pe_sds.info)); + cqp_info->cqp_cmd = IRDMA_OP_UPDATE_PE_SDS; + cqp_info->post_sq = 1; + cqp_info->in.u.update_pe_sds.dev = dev; + cqp_info->in.u.update_pe_sds.scratch = (uintptr_t)cqp_request; + status = irdma_handle_cqp_op(rf, cqp_request); + if (status) + dev_dbg(rfdev_to_dev(dev), "ERR: CQP-OP Update SD's fail"); + + return status; +} + +/** + * irdma_qp_suspend_resume - cqp command for suspend/resume + * @qp: hardware control qp + * @suspend: flag if suspend or resume + */ +enum irdma_status_code irdma_qp_suspend_resume(struct irdma_sc_qp *qp, + bool suspend) +{ + struct irdma_sc_dev *dev = qp->dev; + enum irdma_status_code status; + struct irdma_cqp_request *cqp_request; + struct irdma_sc_cqp *cqp = dev->cqp; + struct cqp_cmds_info *cqp_info; + struct irdma_pci_f *rf = dev->back_dev; + + cqp_request = irdma_get_cqp_request(&rf->cqp, false); + if (!cqp_request) + return IRDMA_ERR_NO_MEMORY; + + cqp_info = &cqp_request->info; + cqp_info->cqp_cmd = (suspend) ? IRDMA_OP_SUSPEND : IRDMA_OP_RESUME; + cqp_info->in.u.suspend_resume.cqp = cqp; + cqp_info->in.u.suspend_resume.qp = qp; + cqp_info->in.u.suspend_resume.scratch = (uintptr_t)cqp_request; + status = irdma_handle_cqp_op(rf, cqp_request); + if (status) + dev_dbg(rfdev_to_dev(dev), + "ERR: CQP-OP QP Suspend/Resume fail"); + + return status; +} + +/** + * irdma_term_modify_qp - modify qp for term message + * @qp: hardware control qp + * @next_state: qp's next state + * @term: terminate code + * @term_len: length + */ +void irdma_term_modify_qp(struct irdma_sc_qp *qp, u8 next_state, u8 term, + u8 term_len) +{ + struct irdma_qp *iwqp; + + iwqp = qp->qp_uk.back_qp; + irdma_next_iw_state(iwqp, next_state, 0, term, term_len); +}; + +/** + * irdma_terminate_done - after terminate is completed + * @qp: hardware control qp + * @timeout_occurred: indicates if terminate timer expired + */ +void irdma_terminate_done(struct irdma_sc_qp *qp, int timeout_occurred) +{ + struct irdma_qp *iwqp; + u8 hte = 0; + bool first_time; + unsigned long flags; + + iwqp = qp->qp_uk.back_qp; + spin_lock_irqsave(&iwqp->lock, flags); + if (iwqp->hte_added) { + iwqp->hte_added = 0; + hte = 1; + } + first_time = !(qp->term_flags & IRDMA_TERM_DONE); + qp->term_flags |= IRDMA_TERM_DONE; + spin_unlock_irqrestore(&iwqp->lock, flags); + if (first_time) { + if (!timeout_occurred) + irdma_terminate_del_timer(qp); + + irdma_next_iw_state(iwqp, IRDMA_QP_STATE_ERROR, hte, 0, 0); + irdma_cm_disconn(iwqp); + } +} + +static void irdma_terminate_timeout(struct timer_list *t) +{ + struct irdma_qp *iwqp = from_timer(iwqp, t, terminate_timer); + struct irdma_sc_qp *qp = &iwqp->sc_qp; + + irdma_terminate_done(qp, 1); + irdma_rem_ref(&iwqp->ibqp); +} + +/** + * irdma_terminate_start_timer - start terminate timeout + * @qp: hardware control qp + */ +void irdma_terminate_start_timer(struct irdma_sc_qp *qp) +{ + struct irdma_qp *iwqp; + + iwqp = qp->qp_uk.back_qp; + irdma_add_ref(&iwqp->ibqp); + timer_setup(&iwqp->terminate_timer, irdma_terminate_timeout, 0); + iwqp->terminate_timer.expires = jiffies + HZ; + + add_timer(&iwqp->terminate_timer); +} + +/** + * irdma_terminate_del_timer - delete terminate timeout + * @qp: hardware control qp + */ +void irdma_terminate_del_timer(struct irdma_sc_qp *qp) +{ + struct irdma_qp *iwqp; + int ret; + + iwqp = qp->qp_uk.back_qp; + ret = del_timer(&iwqp->terminate_timer); + if (ret) + irdma_rem_ref(&iwqp->ibqp); +} + +/** + * irdma_cqp_query_fpm_values_cmd - send cqp command for fpm + * @dev: function device struct + * @val_mem: buffer for fpm + * @hmc_fn_id: function id for fpm + */ +enum irdma_status_code +irdma_cqp_query_fpm_val_cmd(struct irdma_sc_dev *dev, + struct irdma_dma_mem *val_mem, u8 hmc_fn_id) +{ + enum irdma_status_code status; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + struct irdma_pci_f *rf = dev->back_dev; + + cqp_request = irdma_get_cqp_request(&rf->cqp, true); + if (!cqp_request) + return IRDMA_ERR_NO_MEMORY; + + cqp_info = &cqp_request->info; + cqp_request->param = NULL; + cqp_info->in.u.query_fpm_val.cqp = dev->cqp; + cqp_info->in.u.query_fpm_val.fpm_val_pa = val_mem->pa; + cqp_info->in.u.query_fpm_val.fpm_val_va = val_mem->va; + cqp_info->in.u.query_fpm_val.hmc_fn_id = hmc_fn_id; + cqp_info->cqp_cmd = IRDMA_OP_QUERY_FPM_VAL; + cqp_info->post_sq = 1; + cqp_info->in.u.query_fpm_val.scratch = (uintptr_t)cqp_request; + status = irdma_handle_cqp_op(rf, cqp_request); + if (status) + dev_dbg(rfdev_to_dev(dev), "ERR: CQP-OP Query FPM fail"); + + return status; +} + +/** + * irdma_cqp_commit_fpm_values_cmd - commit fpm values in hw + * @dev: hardware control device structure + * @val_mem: buffer with fpm values + * @hmc_fn_id: function id for fpm + */ +enum irdma_status_code +irdma_cqp_commit_fpm_val_cmd(struct irdma_sc_dev *dev, + struct irdma_dma_mem *val_mem, u8 hmc_fn_id) +{ + enum irdma_status_code status; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + struct irdma_pci_f *rf = dev->back_dev; + + cqp_request = irdma_get_cqp_request(&rf->cqp, true); + if (!cqp_request) + return IRDMA_ERR_NO_MEMORY; + + cqp_info = &cqp_request->info; + cqp_request->param = NULL; + cqp_info->in.u.commit_fpm_val.cqp = dev->cqp; + cqp_info->in.u.commit_fpm_val.fpm_val_pa = val_mem->pa; + cqp_info->in.u.commit_fpm_val.fpm_val_va = val_mem->va; + cqp_info->in.u.commit_fpm_val.hmc_fn_id = hmc_fn_id; + cqp_info->cqp_cmd = IRDMA_OP_COMMIT_FPM_VAL; + cqp_info->post_sq = 1; + cqp_info->in.u.commit_fpm_val.scratch = (uintptr_t)cqp_request; + status = irdma_handle_cqp_op(rf, cqp_request); + if (status) + dev_dbg(rfdev_to_dev(dev), "ERR: CQP-OP Commit FPM fail"); + + return status; +} + +/** + * irdma_cqp_cq_create_cmd - create a cq for the cqp + * @dev: device pointer + * @cq: pointer to created cq + */ +enum irdma_status_code irdma_cqp_cq_create_cmd(struct irdma_sc_dev *dev, + struct irdma_sc_cq *cq) +{ + struct irdma_pci_f *rf = dev->back_dev; + struct irdma_cqp *iwcqp = &rf->cqp; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + enum irdma_status_code status; + + cqp_request = irdma_get_cqp_request(iwcqp, true); + if (!cqp_request) + return IRDMA_ERR_NO_MEMORY; + + cqp_info = &cqp_request->info; + cqp_info->cqp_cmd = IRDMA_OP_CQ_CREATE; + cqp_info->post_sq = 1; + cqp_info->in.u.cq_create.cq = cq; + cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request; + status = irdma_handle_cqp_op(rf, cqp_request); + if (status) + dev_dbg(rfdev_to_dev(dev), "ERR: CQP-OP Create CQ fail"); + + return status; +} + +/** + * irdma_cqp_qp_create_cmd - create a qp for the cqp + * @dev: device pointer + * @qp: pointer to created qp + */ +enum irdma_status_code irdma_cqp_qp_create_cmd(struct irdma_sc_dev *dev, + struct irdma_sc_qp *qp) +{ + struct irdma_pci_f *rf = dev->back_dev; + struct irdma_cqp *iwcqp = &rf->cqp; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + struct irdma_create_qp_info *qp_info; + enum irdma_status_code status; + + cqp_request = irdma_get_cqp_request(iwcqp, true); + if (!cqp_request) + return IRDMA_ERR_NO_MEMORY; + + cqp_info = &cqp_request->info; + qp_info = &cqp_request->info.in.u.qp_create.info; + memset(qp_info, 0, sizeof(*qp_info)); + qp_info->cq_num_valid = true; + qp_info->next_iwarp_state = IRDMA_QP_STATE_RTS; + cqp_info->cqp_cmd = IRDMA_OP_QP_CREATE; + cqp_info->post_sq = 1; + cqp_info->in.u.qp_create.qp = qp; + cqp_info->in.u.qp_create.scratch = (uintptr_t)cqp_request; + status = irdma_handle_cqp_op(rf, cqp_request); + if (status) + dev_dbg(rfdev_to_dev(dev), "ERR: CQP-OP QP create fail"); + + return status; +} + +/** + * irdma_dealloc_push_page - free a push page for qp + * @rf: RDMA PCI function + * @qp: hardware control qp + */ +static void irdma_dealloc_push_page(struct irdma_pci_f *rf, + struct irdma_sc_qp *qp) +{ + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + enum irdma_status_code status; + + if (qp->push_idx == IRDMA_INVALID_PUSH_PAGE_INDEX) + return; + + cqp_request = irdma_get_cqp_request(&rf->cqp, false); + if (!cqp_request) + return; + + cqp_info = &cqp_request->info; + cqp_info->cqp_cmd = IRDMA_OP_MANAGE_PUSH_PAGE; + cqp_info->post_sq = 1; + cqp_info->in.u.manage_push_page.info.push_idx = qp->push_idx; + cqp_info->in.u.manage_push_page.info.qs_handle = qp->qs_handle; + cqp_info->in.u.manage_push_page.info.free_page = 1; + cqp_info->in.u.manage_push_page.info.push_page_type = 0; + cqp_info->in.u.manage_push_page.cqp = &rf->cqp.sc_cqp; + cqp_info->in.u.manage_push_page.scratch = (uintptr_t)cqp_request; + status = irdma_handle_cqp_op(rf, cqp_request); + if (!status) + qp->push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX; + else + dev_dbg(rfdev_to_dev(&rf->sc_dev), + "ERR: CQP-OP dealloc Push page fail"); +} + +/** + * irdma_free_qp_rsrc - free up memory resources for qp + * @iwdev: iwarp device + * @iwqp: qp ptr (user or kernel) + * @qp_num: qp number assigned + */ +void irdma_free_qp_rsrc(struct irdma_device *iwdev, struct irdma_qp *iwqp, + u32 qp_num) +{ + struct irdma_pci_f *rf = iwdev->rf; + + irdma_ieq_cleanup_qp(iwdev->vsi.ieq, &iwqp->sc_qp); + irdma_dealloc_push_page(rf, &iwqp->sc_qp); + if (iwqp->sc_qp.vsi) { + irdma_qp_rem_qos(&iwqp->sc_qp); + iwqp->sc_qp.dev->ws_remove(iwqp->sc_qp.vsi, + iwqp->sc_qp.user_pri); + } + + if (qp_num > 2) + irdma_free_rsrc(rf, rf->allocated_qps, qp_num); + dma_free_coherent(hw_to_dev(rf->sc_dev.hw), iwqp->q2_ctx_mem.size, + iwqp->q2_ctx_mem.va, iwqp->q2_ctx_mem.pa); + iwqp->q2_ctx_mem.va = NULL; + dma_free_coherent(hw_to_dev(rf->sc_dev.hw), iwqp->kqp.dma_mem.size, + iwqp->kqp.dma_mem.va, iwqp->kqp.dma_mem.pa); + iwqp->kqp.dma_mem.va = NULL; + kfree(iwqp->kqp.sq_wrid_mem); + iwqp->kqp.sq_wrid_mem = NULL; + kfree(iwqp->kqp.rq_wrid_mem); + iwqp->kqp.rq_wrid_mem = NULL; + kfree(iwqp); +} + +/** + * irdma_cq_wq_destroy - send cq destroy cqp + * @rf: RDMA PCI function + * @cq: hardware control cq + */ +void irdma_cq_wq_destroy(struct irdma_pci_f *rf, struct irdma_sc_cq *cq) +{ + enum irdma_status_code status; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + + cqp_request = irdma_get_cqp_request(&rf->cqp, true); + if (!cqp_request) + return; + + cqp_info = &cqp_request->info; + cqp_info->cqp_cmd = IRDMA_OP_CQ_DESTROY; + cqp_info->post_sq = 1; + cqp_info->in.u.cq_destroy.cq = cq; + cqp_info->in.u.cq_destroy.scratch = (uintptr_t)cqp_request; + status = irdma_handle_cqp_op(rf, cqp_request); + if (status) + dev_dbg(rfdev_to_dev(&rf->sc_dev), + "ERR: CQP-OP Destroy CQ fail"); +} + +/** + * irdma_hw_modify_qp_callback - handle state for modifyQPs that don't wait + * @cqp_request: modify QP completion + */ +static void irdma_hw_modify_qp_callback(struct irdma_cqp_request *cqp_request) +{ + struct cqp_cmds_info *cqp_info; + struct irdma_qp *iwqp; + + cqp_info = &cqp_request->info; + iwqp = cqp_info->in.u.qp_modify.qp->qp_uk.back_qp; + atomic_dec(&iwqp->hw_mod_qp_pend); + wake_up(&iwqp->mod_qp_waitq); +} + +/** + * irdma_hw_modify_qp - setup cqp for modify qp + * @iwdev: RDMA device + * @iwqp: qp ptr (user or kernel) + * @info: info for modify qp + * @wait: flag to wait or not for modify qp completion + */ +enum irdma_status_code irdma_hw_modify_qp(struct irdma_device *iwdev, + struct irdma_qp *iwqp, + struct irdma_modify_qp_info *info, + bool wait) +{ + enum irdma_status_code status; + struct irdma_pci_f *rf = iwdev->rf; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + struct irdma_modify_qp_info *m_info; + + cqp_request = irdma_get_cqp_request(&rf->cqp, wait); + if (!cqp_request) + return IRDMA_ERR_NO_MEMORY; + + if (!wait) { + cqp_request->callback_fcn = irdma_hw_modify_qp_callback; + atomic_inc(&iwqp->hw_mod_qp_pend); + } + cqp_info = &cqp_request->info; + m_info = &cqp_info->in.u.qp_modify.info; + memcpy(m_info, info, sizeof(*m_info)); + cqp_info->cqp_cmd = IRDMA_OP_QP_MODIFY; + cqp_info->post_sq = 1; + cqp_info->in.u.qp_modify.qp = &iwqp->sc_qp; + cqp_info->in.u.qp_modify.scratch = (uintptr_t)cqp_request; + status = irdma_handle_cqp_op(rf, cqp_request); + if (status) { + if (rdma_protocol_roce(&iwdev->iwibdev->ibdev, 1)) + return status; + switch (m_info->next_iwarp_state) { + struct irdma_gen_ae_info ae_info; + + case IRDMA_QP_STATE_RTS: + case IRDMA_QP_STATE_IDLE: + case IRDMA_QP_STATE_TERMINATE: + case IRDMA_QP_STATE_CLOSING: + if (info->curr_iwarp_state == IRDMA_QP_STATE_IDLE) + irdma_send_reset(iwqp->cm_node); + else + iwqp->sc_qp.term_flags = IRDMA_TERM_DONE; + if (!wait) { + ae_info.ae_code = IRDMA_AE_BAD_CLOSE; + ae_info.ae_src = 0; + irdma_gen_ae(rf, &iwqp->sc_qp, &ae_info, false); + } else { + cqp_request = irdma_get_cqp_request(&rf->cqp, + wait); + if (!cqp_request) + return IRDMA_ERR_NO_MEMORY; + + cqp_info = &cqp_request->info; + m_info = &cqp_info->in.u.qp_modify.info; + memcpy(m_info, info, sizeof(*m_info)); + cqp_info->cqp_cmd = IRDMA_OP_QP_MODIFY; + cqp_info->post_sq = 1; + cqp_info->in.u.qp_modify.qp = &iwqp->sc_qp; + cqp_info->in.u.qp_modify.scratch = (uintptr_t)cqp_request; + m_info->next_iwarp_state = IRDMA_QP_STATE_ERROR; + m_info->reset_tcp_conn = true; + irdma_handle_cqp_op(rf, cqp_request); + } + break; + case IRDMA_QP_STATE_ERROR: + default: + break; + } + } + + return status; +} + +/** + * irdma_cqp_cq_destroy_cmd - destroy the cqp cq + * @dev: device pointer + * @cq: pointer to cq + */ +void irdma_cqp_cq_destroy_cmd(struct irdma_sc_dev *dev, struct irdma_sc_cq *cq) +{ + struct irdma_pci_f *rf = dev->back_dev; + + irdma_cq_wq_destroy(rf, cq); +} + +/** + * irdma_cqp_qp_destroy_cmd - destroy the cqp + * @dev: device pointer + * @qp: pointer to qp + */ +void irdma_cqp_qp_destroy_cmd(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp) +{ + struct irdma_pci_f *rf = dev->back_dev; + struct irdma_cqp *iwcqp = &rf->cqp; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + enum irdma_status_code status; + + cqp_request = irdma_get_cqp_request(iwcqp, true); + if (!cqp_request) + return; + + cqp_info = &cqp_request->info; + memset(cqp_info, 0, sizeof(*cqp_info)); + cqp_info->cqp_cmd = IRDMA_OP_QP_DESTROY; + cqp_info->post_sq = 1; + cqp_info->in.u.qp_destroy.qp = qp; + cqp_info->in.u.qp_destroy.scratch = (uintptr_t)cqp_request; + cqp_info->in.u.qp_destroy.remove_hash_idx = true; + status = irdma_handle_cqp_op(rf, cqp_request); + if (status) + dev_dbg(rfdev_to_dev(dev), "ERR: CQP QP_DESTROY fail"); +} + +/** + * irdma_ieq_mpa_crc_ae - generate AE for crc error + * @dev: hardware control device structure + * @qp: hardware control qp + */ +void irdma_ieq_mpa_crc_ae(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp) +{ + struct irdma_gen_ae_info info = {}; + struct irdma_pci_f *rf = dev->back_dev; + + dev_dbg(rfdev_to_dev(dev), "AEQ: Generate MPA CRC AE\n"); + info.ae_code = IRDMA_AE_LLP_RECEIVED_MPA_CRC_ERROR; + info.ae_src = IRDMA_AE_SOURCE_RQ; + irdma_gen_ae(rf, qp, &info, false); +} + +/** + * irdma_init_hash_desc - initialize hash for crc calculation + * @desc: cryption type + */ +enum irdma_status_code irdma_init_hash_desc(struct shash_desc **desc) +{ + struct crypto_shash *tfm; + struct shash_desc *tdesc; + + tfm = crypto_alloc_shash("crc32c", 0, 0); + if (IS_ERR(tfm)) + return IRDMA_ERR_MPA_CRC; + + tdesc = kzalloc(sizeof(*tdesc) + crypto_shash_descsize(tfm), + GFP_KERNEL); + if (!tdesc) { + crypto_free_shash(tfm); + return IRDMA_ERR_MPA_CRC; + } + + tdesc->tfm = tfm; + *desc = tdesc; + + return 0; +} + +/** + * irdma_free_hash_desc - free hash desc + * @desc: to be freed + */ +void irdma_free_hash_desc(struct shash_desc *desc) +{ + if (desc) { + crypto_free_shash(desc->tfm); + kfree(desc); + } +} + +/** + * irdma_ieq_check_mpacrc - check if mpa crc is OK + * @desc: desc for hash + * @addr: address of buffer for crc + * @len: length of buffer + * @val: value to be compared + */ +enum irdma_status_code irdma_ieq_check_mpacrc(struct shash_desc *desc, + void *addr, u32 len, u32 val) +{ + u32 crc = 0; + int ret; + enum irdma_status_code ret_code = 0; + + crypto_shash_init(desc); + ret = crypto_shash_update(desc, addr, len); + if (!ret) + crypto_shash_final(desc, (u8 *)&crc); + if (crc != val) { + pr_err("mpa crc check fail"); + ret_code = IRDMA_ERR_MPA_CRC; + } + + return ret_code; +} + +/** + * irdma_ieq_get_qp - get qp based on quad in puda buffer + * @dev: hardware control device structure + * @buf: receive puda buffer on exception q + */ +struct irdma_sc_qp *irdma_ieq_get_qp(struct irdma_sc_dev *dev, + struct irdma_puda_buf *buf) +{ + struct irdma_qp *iwqp; + struct irdma_cm_node *cm_node; + struct irdma_device *iwdev = buf->vsi->back_vsi; + u32 loc_addr[4] = {}; + u32 rem_addr[4] = {}; + u16 loc_port, rem_port; + struct ipv6hdr *ip6h; + struct iphdr *iph = (struct iphdr *)buf->iph; + struct tcphdr *tcph = (struct tcphdr *)buf->tcph; + struct irdma_pci_f *rf = dev->back_dev; + struct udphdr *udph; + struct irdma_bth *bth; + + if (iph->protocol == IPPROTO_UDP) { + udph = (struct udphdr *)tcph; + bth = (struct irdma_bth *)udph + sizeof(*udph); + iwqp = rf->qp_table[be32_to_cpu(bth->qpn)]; + return &iwqp->sc_qp; + } + + if (iph->version == 4) { + loc_addr[0] = ntohl(iph->daddr); + rem_addr[0] = ntohl(iph->saddr); + } else { + ip6h = (struct ipv6hdr *)buf->iph; + irdma_copy_ip_ntohl(loc_addr, ip6h->daddr.in6_u.u6_addr32); + irdma_copy_ip_ntohl(rem_addr, ip6h->saddr.in6_u.u6_addr32); + } + loc_port = ntohs(tcph->dest); + rem_port = ntohs(tcph->source); + cm_node = irdma_find_node(&iwdev->cm_core, rem_port, rem_addr, loc_port, + loc_addr, false, true); + if (!cm_node) + return NULL; + + iwqp = cm_node->iwqp; + + return &iwqp->sc_qp; +} + +/** + * irdma_send_ieq_ack - ACKs for duplicate or OOO partials FPDUs + * @qp: qp ptr + */ +void irdma_send_ieq_ack(struct irdma_sc_qp *qp) +{ + struct irdma_cm_node *cm_node = ((struct irdma_qp *)qp->qp_uk.back_qp)->cm_node; + struct irdma_puda_buf *buf = qp->pfpdu.lastrcv_buf; + struct tcphdr *tcph = (struct tcphdr *)buf->tcph; + + cm_node->tcp_cntxt.rcv_nxt = qp->pfpdu.nextseqnum; + cm_node->tcp_cntxt.loc_seq_num = ntohl(tcph->ack_seq); + + irdma_send_ack(cm_node); +} + +/** + * irdma_puda_ieq_get_ah_info - get AH info from IEQ buffer + * @qp: qp pointer + * @ah_info: AH info pointer + */ +void irdma_puda_ieq_get_ah_info(struct irdma_sc_qp *qp, + struct irdma_ah_info *ah_info) +{ + struct irdma_puda_buf *buf = qp->pfpdu.ah_buf; + struct iphdr *iph; + struct ipv6hdr *ip6h; + + memset(ah_info, 0, sizeof(*ah_info)); + ah_info->do_lpbk = true; + ah_info->vlan_tag = buf->vlan_id; + ah_info->insert_vlan_tag = buf->vlan_valid; + ah_info->ipv4_valid = buf->ipv4; + ah_info->vsi = qp->vsi; + + if (buf->smac_valid) + ether_addr_copy(ah_info->mac_addr, buf->smac); + + if (buf->ipv4) { + ah_info->ipv4_valid = true; + iph = (struct iphdr *)buf->iph; + ah_info->hop_ttl = iph->ttl; + ah_info->tc_tos = iph->tos; + ah_info->dest_ip_addr[0] = ntohl(iph->daddr); + ah_info->src_ip_addr[0] = ntohl(iph->saddr); + } else { + ip6h = (struct ipv6hdr *)buf->iph; + ah_info->hop_ttl = ip6h->hop_limit; + ah_info->tc_tos = ip6h->priority; + irdma_copy_ip_ntohl(ah_info->dest_ip_addr, + ip6h->daddr.in6_u.u6_addr32); + irdma_copy_ip_ntohl(ah_info->src_ip_addr, + ip6h->saddr.in6_u.u6_addr32); + } + + ah_info->dst_arpindex = irdma_arp_table(qp->dev->back_dev, + ah_info->dest_ip_addr, + ah_info->ipv4_valid, + NULL, IRDMA_ARP_RESOLVE); +} + +/** + * irdma_gen1_ieq_update_tcpip_info - update tcpip in the buffer + * @buf: puda to update + * @len: length of buffer + * @seqnum: seq number for tcp + */ +static void irdma_gen1_ieq_update_tcpip_info(struct irdma_puda_buf *buf, + u16 len, u32 seqnum) +{ + struct tcphdr *tcph; + struct iphdr *iph; + u16 iphlen; + u16 pktsize; + u8 *addr = buf->mem.va; + + iphlen = (buf->ipv4) ? 20 : 40; + iph = (struct iphdr *)(addr + buf->maclen); + tcph = (struct tcphdr *)(addr + buf->maclen + iphlen); + pktsize = len + buf->tcphlen + iphlen; + iph->tot_len = htons(pktsize); + tcph->seq = htonl(seqnum); +} + +/** + * irdma_ieq_update_tcpip_info - update tcpip in the buffer + * @buf: puda to update + * @len: length of buffer + * @seqnum: seq number for tcp + */ +void irdma_ieq_update_tcpip_info(struct irdma_puda_buf *buf, u16 len, + u32 seqnum) +{ + struct tcphdr *tcph; + u8 *addr; + + if (buf->vsi->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1) + return irdma_gen1_ieq_update_tcpip_info(buf, len, seqnum); + + addr = buf->mem.va; + tcph = (struct tcphdr *)addr; + tcph->seq = htonl(seqnum); +} + +/** + * irdma_gen1_puda_get_tcpip_info - get tcpip info from puda + * buffer + * @info: to get information + * @buf: puda buffer + */ +static enum irdma_status_code +irdma_gen1_puda_get_tcpip_info(struct irdma_puda_cmpl_info *info, + struct irdma_puda_buf *buf) +{ + struct iphdr *iph; + struct ipv6hdr *ip6h; + struct tcphdr *tcph; + u16 iphlen; + u16 pkt_len; + u8 *mem = buf->mem.va; + struct ethhdr *ethh = buf->mem.va; + + if (ethh->h_proto == htons(0x8100)) { + info->vlan_valid = true; + buf->vlan_id = ntohs(((struct vlan_ethhdr *)ethh)->h_vlan_TCI) & + VLAN_VID_MASK; + } + + buf->maclen = (info->vlan_valid) ? 18 : 14; + iphlen = (info->l3proto) ? 40 : 20; + buf->ipv4 = (info->l3proto) ? false : true; + buf->iph = mem + buf->maclen; + iph = (struct iphdr *)buf->iph; + buf->tcph = buf->iph + iphlen; + tcph = (struct tcphdr *)buf->tcph; + + if (buf->ipv4) { + pkt_len = ntohs(iph->tot_len); + } else { + ip6h = (struct ipv6hdr *)buf->iph; + pkt_len = ntohs(ip6h->payload_len) + iphlen; + } + + buf->totallen = pkt_len + buf->maclen; + + if (info->payload_len < buf->totallen) { + dev_dbg(rfdev_to_dev(buf->vsi->dev), + "ERR: payload_len = 0x%x totallen expected0x%x\n", + info->payload_len, buf->totallen); + return IRDMA_ERR_INVALID_SIZE; + } + + buf->tcphlen = tcph->doff << 2; + buf->datalen = pkt_len - iphlen - buf->tcphlen; + buf->data = buf->datalen ? buf->tcph + buf->tcphlen : NULL; + buf->hdrlen = buf->maclen + iphlen + buf->tcphlen; + buf->seqnum = ntohl(tcph->seq); + + return 0; +} + +/** + * irdma_puda_get_tcpip_info - get tcpip info from puda buffer + * @info: to get information + * @buf: puda buffer + */ +enum irdma_status_code +irdma_puda_get_tcpip_info(struct irdma_puda_cmpl_info *info, + struct irdma_puda_buf *buf) +{ + struct tcphdr *tcph; + u32 pkt_len; + u8 *mem; + + if (buf->vsi->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1) + return irdma_gen1_puda_get_tcpip_info(info, buf); + + mem = buf->mem.va; + buf->vlan_valid = info->vlan_valid; + if (info->vlan_valid) + buf->vlan_id = info->vlan; + + buf->ipv4 = info->ipv4; + if (buf->ipv4) + buf->iph = mem + IRDMA_IPV4_PAD; + else + buf->iph = mem; + + buf->tcph = mem + IRDMA_TCP_OFFSET; + tcph = (struct tcphdr *)buf->tcph; + pkt_len = info->payload_len; + buf->totallen = pkt_len; + buf->tcphlen = tcph->doff << 2; + buf->datalen = pkt_len - IRDMA_TCP_OFFSET - buf->tcphlen; + buf->data = buf->datalen ? buf->tcph + buf->tcphlen : NULL; + buf->hdrlen = IRDMA_TCP_OFFSET + buf->tcphlen; + buf->seqnum = ntohl(tcph->seq); + + if (info->smac_valid) { + ether_addr_copy(buf->smac, info->smac); + buf->smac_valid = true; + } + + return 0; +} + +/** + * irdma_process_stats - Checking for wrap and update stats + * + * @pestat: stats structure pointer + */ +static void irdma_process_stats(struct irdma_vsi_pestat *pestat) +{ + struct irdma_gather_stats *gather_stats = + pestat->gather_info.gather_stats; + struct irdma_gather_stats *last_gather_stats = + pestat->gather_info.last_gather_stats; + irdma_update_stats(&pestat->hw_stats, gather_stats, last_gather_stats); +} + +/** + * irdma_cqp_gather_stats_gen1 - Gather stats + * @dev: pointer to device structure + * @pestat: statistics structure + */ +static void irdma_cqp_gather_stats_gen1(struct irdma_sc_dev *dev, + struct irdma_vsi_pestat *pestat) +{ + struct irdma_gather_stats *gather_stats = + pestat->gather_info.gather_stats; + u32 stats_inst_offset_32; + u32 stats_inst_offset_64; + + stats_inst_offset_32 = (pestat->gather_info.use_stats_inst) ? + pestat->gather_info.stats_inst_index : + pestat->hw->hmc.hmc_fn_id; + stats_inst_offset_32 *= 4; + stats_inst_offset_64 = stats_inst_offset_32 * 2; + + gather_stats->rxvlanerr = + rd32(dev->hw, + dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_RXVLANERR] + + stats_inst_offset_32); + gather_stats->ip4rxdiscard = + rd32(dev->hw, + dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP4RXDISCARD] + + stats_inst_offset_32); + gather_stats->ip4rxtrunc = + rd32(dev->hw, + dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP4RXTRUNC] + + stats_inst_offset_32); + gather_stats->ip4txnoroute = + rd32(dev->hw, + dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP4TXNOROUTE] + + stats_inst_offset_32); + gather_stats->ip6rxdiscard = + rd32(dev->hw, + dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP6RXDISCARD] + + stats_inst_offset_32); + gather_stats->ip6rxtrunc = + rd32(dev->hw, + dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP6RXTRUNC] + + stats_inst_offset_32); + gather_stats->ip6txnoroute = + rd32(dev->hw, + dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP6TXNOROUTE] + + stats_inst_offset_32); + gather_stats->tcprtxseg = + rd32(dev->hw, + dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_TCPRTXSEG] + + stats_inst_offset_32); + gather_stats->tcprxopterr = + rd32(dev->hw, + dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_TCPRXOPTERR] + + stats_inst_offset_32); + + gather_stats->ip4rxocts = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4RXOCTS] + + stats_inst_offset_64); + gather_stats->ip4rxpkts = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4RXPKTS] + + stats_inst_offset_64); + gather_stats->ip4txfrag = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4RXFRAGS] + + stats_inst_offset_64); + gather_stats->ip4rxmcpkts = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4RXMCPKTS] + + stats_inst_offset_64); + gather_stats->ip4txocts = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4TXOCTS] + + stats_inst_offset_64); + gather_stats->ip4txpkts = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4TXPKTS] + + stats_inst_offset_64); + gather_stats->ip4txfrag = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4TXFRAGS] + + stats_inst_offset_64); + gather_stats->ip4txmcpkts = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4TXMCPKTS] + + stats_inst_offset_64); + gather_stats->ip6rxocts = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6RXOCTS] + + stats_inst_offset_64); + gather_stats->ip6rxpkts = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6RXPKTS] + + stats_inst_offset_64); + gather_stats->ip6txfrags = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6RXFRAGS] + + stats_inst_offset_64); + gather_stats->ip6rxmcpkts = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6RXMCPKTS] + + stats_inst_offset_64); + gather_stats->ip6txocts = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6TXOCTS] + + stats_inst_offset_64); + gather_stats->ip6txpkts = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6TXPKTS] + + stats_inst_offset_64); + gather_stats->ip6txfrags = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6TXFRAGS] + + stats_inst_offset_64); + gather_stats->ip6txmcpkts = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6TXMCPKTS] + + stats_inst_offset_64); + gather_stats->tcprxsegs = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_TCPRXSEGS] + + stats_inst_offset_64); + gather_stats->tcptxsegs = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_TCPTXSEG] + + stats_inst_offset_64); + gather_stats->rdmarxrds = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMARXRDS] + + stats_inst_offset_64); + gather_stats->rdmarxsnds = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMARXSNDS] + + stats_inst_offset_64); + gather_stats->rdmarxwrs = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMARXWRS] + + stats_inst_offset_64); + gather_stats->rdmatxrds = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMATXRDS] + + stats_inst_offset_64); + gather_stats->rdmatxsnds = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMATXSNDS] + + stats_inst_offset_64); + gather_stats->rdmatxwrs = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMATXWRS] + + stats_inst_offset_64); + gather_stats->rdmavbn = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMAVBND] + + stats_inst_offset_64); + gather_stats->rdmavinv = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMAVINV] + + stats_inst_offset_64); + gather_stats->udprxpkts = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_UDPRXPKTS] + + stats_inst_offset_64); + gather_stats->udptxpkts = + rd64(dev->hw, + dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_UDPTXPKTS] + + stats_inst_offset_64); + + irdma_process_stats(pestat); +} + +/** + * irdma_process_cqp_stats - Checking for wrap and update stats + * @cqp_request: cqp_request structure pointer + */ +static void irdma_process_cqp_stats(struct irdma_cqp_request *cqp_request) +{ + struct irdma_vsi_pestat *pestat = cqp_request->param; + + irdma_process_stats(pestat); +} + +/** + * irdma_cqp_gather_stats_cmd - Gather stats + * @dev: pointer to device structure + * @pestat: pointer to stats info + * @wait: flag to wait or not wait for stats + */ +enum irdma_status_code +irdma_cqp_gather_stats_cmd(struct irdma_sc_dev *dev, + struct irdma_vsi_pestat *pestat, bool wait) + +{ + struct irdma_pci_f *rf = dev->back_dev; + struct irdma_cqp *iwcqp = &rf->cqp; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + enum irdma_status_code status; + + cqp_request = irdma_get_cqp_request(iwcqp, wait); + if (!cqp_request) + return IRDMA_ERR_NO_MEMORY; + + cqp_info = &cqp_request->info; + memset(cqp_info, 0, sizeof(*cqp_info)); + cqp_info->cqp_cmd = IRDMA_OP_STATS_GATHER; + cqp_info->post_sq = 1; + cqp_info->in.u.stats_gather.info = pestat->gather_info; + cqp_info->in.u.stats_gather.scratch = (uintptr_t)cqp_request; + cqp_info->in.u.stats_gather.cqp = &rf->cqp.sc_cqp; + cqp_request->param = pestat; + if (!wait) + cqp_request->callback_fcn = irdma_process_cqp_stats; + status = irdma_handle_cqp_op(rf, cqp_request); + if (status) + dev_dbg(rfdev_to_dev(dev), "ERR: CQP STATS_GATHER fail"); + else if (wait) + irdma_process_stats(pestat); + + return status; +} + +/** + * irdma_hw_stats_timeout - Stats timer-handler which updates all HW stats + * @t: timer_list pointer + */ +static void irdma_hw_stats_timeout(struct timer_list *t) +{ + struct irdma_vsi_pestat *pf_devstat = + from_timer(pf_devstat, t, stats_timer); + struct irdma_sc_vsi *sc_vsi = pf_devstat->vsi; + struct irdma_device *iwdev = sc_vsi->back_vsi; + + if (iwdev->init_state != RDMA_DEV_REGISTERED) + goto exit; + if (sc_vsi->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1) + irdma_cqp_gather_stats_gen1(sc_vsi->dev, sc_vsi->pestat); + else + irdma_cqp_gather_stats_cmd(sc_vsi->dev, sc_vsi->pestat, false); + +exit: + mod_timer(&pf_devstat->stats_timer, + jiffies + msecs_to_jiffies(STATS_TIMER_DELAY)); +} + +/** + * irdma_hw_stats_start_timer - Start periodic stats timer + * @vsi: vsi structure pointer + */ +void irdma_hw_stats_start_timer(struct irdma_sc_vsi *vsi) +{ + struct irdma_vsi_pestat *devstat = vsi->pestat; + + timer_setup(&devstat->stats_timer, irdma_hw_stats_timeout, 0); + mod_timer(&devstat->stats_timer, + jiffies + msecs_to_jiffies(STATS_TIMER_DELAY)); +} + +/** + * irdma_hw_stats_del_timer - Delete periodic stats timer + * @vsi: pointer to vsi structure + */ +void irdma_hw_stats_stop_timer(struct irdma_sc_vsi *vsi) +{ + struct irdma_vsi_pestat *devstat = vsi->pestat; + + del_timer_sync(&devstat->stats_timer); +} + +/** + * irdma_cqp_stats_inst_cmd - Allocate/free stats instance + * @vsi: pointer to vsi structure + * @cmd: command to allocate or free + * @stats_info: pointer to allocate stats info + */ +enum irdma_status_code +irdma_cqp_stats_inst_cmd(struct irdma_sc_vsi *vsi, u8 cmd, + struct irdma_stats_inst_info *stats_info) +{ + struct irdma_pci_f *rf = vsi->dev->back_dev; + struct irdma_cqp *iwcqp = &rf->cqp; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + enum irdma_status_code status; + bool wait = false; + + if (cmd == IRDMA_OP_STATS_ALLOCATE) + wait = true; + cqp_request = irdma_get_cqp_request(iwcqp, wait); + if (!cqp_request) + return IRDMA_ERR_NO_MEMORY; + + cqp_info = &cqp_request->info; + memset(cqp_info, 0, sizeof(*cqp_info)); + cqp_info->cqp_cmd = cmd; + cqp_info->post_sq = 1; + cqp_info->in.u.stats_manage.info = *stats_info; + cqp_info->in.u.stats_manage.scratch = (uintptr_t)cqp_request; + cqp_info->in.u.stats_manage.cqp = &rf->cqp.sc_cqp; + status = irdma_handle_cqp_op(rf, cqp_request); + if (status) + dev_dbg(rfdev_to_dev(&rf->sc_dev), + "ERR: CQP MANAGE_STATS fail"); + else if (wait) + stats_info->stats_idx = cqp_request->compl_info.op_ret_val; + + return status; +} + +/** + * irdma_cqp_ceq_cmd - Create/Destroy CEQ's after CEQ 0 + * @dev: pointer to device info + * @sc_ceq: pointer to ceq structure + * @op: Create or Destroy + */ +enum irdma_status_code irdma_cqp_ceq_cmd(struct irdma_sc_dev *dev, + struct irdma_sc_ceq *sc_ceq, u8 op) +{ + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + struct irdma_pci_f *rf = dev->back_dev; + + cqp_request = irdma_get_cqp_request(&rf->cqp, true); + if (!cqp_request) + return IRDMA_ERR_NO_MEMORY; + + cqp_info = &cqp_request->info; + cqp_info->post_sq = 1; + cqp_info->cqp_cmd = op; + cqp_info->in.u.ceq_create.ceq = sc_ceq; + cqp_info->in.u.ceq_create.scratch = (uintptr_t)cqp_request; + + return irdma_handle_cqp_op(rf, cqp_request); +} + +/** + * irdma_cqp_ws_node_cmd - Add/modify/delete ws node + * @dev: pointer to device structure + * @cmd: Add, modify or delete + * @node_info: pointer to ws node info + */ +enum irdma_status_code +irdma_cqp_ws_node_cmd(struct irdma_sc_dev *dev, u8 cmd, + struct irdma_ws_node_info *node_info) +{ + struct irdma_pci_f *rf = dev->back_dev; + struct irdma_cqp *iwcqp = &rf->cqp; + struct irdma_sc_cqp *cqp = &iwcqp->sc_cqp; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + enum irdma_status_code status; + bool poll; + + if (!rf->sc_dev.ceq_valid) + poll = true; + else + poll = false; + + cqp_request = irdma_get_cqp_request(iwcqp, !poll); + if (!cqp_request) + return IRDMA_ERR_NO_MEMORY; + + cqp_info = &cqp_request->info; + memset(cqp_info, 0, sizeof(*cqp_info)); + cqp_info->cqp_cmd = cmd; + cqp_info->post_sq = 1; + cqp_info->in.u.ws_node.info = *node_info; + cqp_info->in.u.ws_node.cqp = cqp; + cqp_info->in.u.ws_node.scratch = (uintptr_t)cqp_request; + status = irdma_handle_cqp_op(rf, cqp_request); + if (status) { + dev_dbg(rfdev_to_dev(dev), "ERR: CQP WS_NODE fail\n"); + return status; + } + + if (poll) { + struct irdma_ccq_cqe_info compl_info; + + status = cqp->dev->cqp_ops->poll_for_cqp_op_done(cqp, + IRDMA_CQP_OP_WORK_SCHED_NODE, + &compl_info); + node_info->qs_handle = compl_info.op_ret_val; + dev_dbg(rfdev_to_dev(cqp->dev), + "DCB: opcode=%d, compl_info.retval=%d\n", + compl_info.op_code, compl_info.op_ret_val); + } else { + node_info->qs_handle = cqp_request->compl_info.op_ret_val; + } + + return status; +} + +/** + * irdma_cqp_up_map_cmd - Set the up-up mapping + * @dev: pointer to device structure + * @cmd: map command + * @map_info: pointer to up map info + */ +enum irdma_status_code irdma_cqp_up_map_cmd(struct irdma_sc_dev *dev, u8 cmd, + struct irdma_up_info *map_info) +{ + struct irdma_pci_f *rf = dev->back_dev; + struct irdma_cqp *iwcqp = &rf->cqp; + struct irdma_sc_cqp *cqp = &iwcqp->sc_cqp; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + enum irdma_status_code status; + + cqp_request = irdma_get_cqp_request(iwcqp, false); + if (!cqp_request) + return IRDMA_ERR_NO_MEMORY; + + cqp_info = &cqp_request->info; + memset(cqp_info, 0, sizeof(*cqp_info)); + cqp_info->cqp_cmd = cmd; + cqp_info->post_sq = 1; + cqp_info->in.u.up_map.info = *map_info; + cqp_info->in.u.up_map.cqp = cqp; + cqp_info->in.u.up_map.scratch = (uintptr_t)cqp_request; + status = irdma_handle_cqp_op(rf, cqp_request); + if (status) + dev_dbg(rfdev_to_dev(dev), "ERR: CQP UP MAP fail\n"); + + return status; +} + +/** + * irdma_ah_cqp_op - perform an AH cqp operation + * @rf: RDMA PCI function + * @sc_ah: address handle + * @cmd: AH operation + * @wait: wait if true + * @callback_fcn: Callback function on CQP op completion + * @cb_param: parameter for callback function + * + * returns errno + */ +int irdma_ah_cqp_op(struct irdma_pci_f *rf, struct irdma_sc_ah *sc_ah, u8 cmd, + bool wait, + void (*callback_fcn)(struct irdma_cqp_request *), + void *cb_param) +{ + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + enum irdma_status_code status; + + cqp_request = irdma_get_cqp_request(&rf->cqp, wait); + if (!cqp_request) + return -ENOMEM; + + cqp_info = &cqp_request->info; + cqp_info->cqp_cmd = cmd; + cqp_info->post_sq = 1; + if (cmd == IRDMA_OP_AH_CREATE) { + cqp_info->in.u.ah_create.info = sc_ah->ah_info; + cqp_info->in.u.ah_create.scratch = (uintptr_t)cqp_request; + cqp_info->in.u.ah_create.cqp = &rf->cqp.sc_cqp; + } else if (cmd == IRDMA_OP_AH_DESTROY) { + cqp_info->in.u.ah_destroy.info = sc_ah->ah_info; + cqp_info->in.u.ah_destroy.scratch = (uintptr_t)cqp_request; + cqp_info->in.u.ah_destroy.cqp = &rf->cqp.sc_cqp; + } else { + return -EINVAL; + } + + if (!wait) { + cqp_request->callback_fcn = callback_fcn; + cqp_request->param = cb_param; + } + status = irdma_handle_cqp_op(rf, cqp_request); + if (!status) { + if (wait) { + if (cmd == IRDMA_OP_AH_CREATE) + sc_ah->ah_info.ah_valid = true; + else + sc_ah->ah_info.ah_valid = false; + } + } else { + return -ENOMEM; + } + + return 0; +} + +/** + * irdma_ieq_ah_cb - callback after creation of AH for IEQ + * @cqp_request: pointer to cqp_request of create AH + */ +static void irdma_ieq_ah_cb(struct irdma_cqp_request *cqp_request) +{ + struct irdma_sc_qp *qp = cqp_request->param; + struct irdma_sc_ah *sc_ah = qp->pfpdu.ah; + unsigned long flags; + + spin_lock_irqsave(&qp->pfpdu.lock, flags); + if (!cqp_request->compl_info.op_ret_val) { + sc_ah->ah_info.ah_valid = true; + irdma_ieq_process_fpdus(qp, qp->vsi->ieq); + } else { + sc_ah->ah_info.ah_valid = false; + irdma_ieq_cleanup_qp(qp->vsi->ieq, qp); + } + spin_unlock_irqrestore(&qp->pfpdu.lock, flags); +} + +/** + * irdma_ilq_ah_cb - callback after creation of AH for ILQ + * @cqp_request: pointer to cqp_request of create AH + */ +static void irdma_ilq_ah_cb(struct irdma_cqp_request *cqp_request) +{ + struct irdma_cm_node *cm_node = cqp_request->param; + struct irdma_sc_ah *sc_ah = cm_node->ah; + + if (!cqp_request->compl_info.op_ret_val) + sc_ah->ah_info.ah_valid = true; + else + sc_ah->ah_info.ah_valid = false; +} + +/** + * irdma_puda_create_ah - create AH for ILQ/IEQ qp's + * @dev: device pointer + * @ah_info: Address handle info + * @wait: When true will wait for operation to complete + * @type: ILQ/IEQ + * @cb_param: Callback param when not waiting + * @ah_ret: Returned pointer to address handle if created + * + */ +enum irdma_status_code irdma_puda_create_ah(struct irdma_sc_dev *dev, + struct irdma_ah_info *ah_info, + bool wait, enum puda_rsrc_type type, + void *cb_param, + struct irdma_sc_ah **ah_ret) +{ + struct irdma_sc_ah *ah; + struct irdma_pci_f *rf = dev->back_dev; + int err; + + ah = kzalloc(sizeof(*ah), GFP_ATOMIC); + *ah_ret = ah; + if (!ah) + return IRDMA_ERR_NO_MEMORY; + + err = irdma_alloc_rsrc(rf, rf->allocated_ahs, rf->max_ah, + &ah_info->ah_idx, &rf->next_ah); + if (err) + goto err_free; + + ah->dev = dev; + ah->ah_info = *ah_info; + + if (type == IRDMA_PUDA_RSRC_TYPE_ILQ) + err = irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_CREATE, wait, + irdma_ilq_ah_cb, cb_param); + else + err = irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_CREATE, wait, + irdma_ieq_ah_cb, cb_param); + + if (err) + goto error; + return 0; + +error: + irdma_free_rsrc(rf, rf->allocated_ahs, ah->ah_info.ah_idx); +err_free: + kfree(ah); + *ah_ret = NULL; + return IRDMA_ERR_NO_MEMORY; +} + +/** + * irdma_puda_free_ah - free a puda address handle + * @dev: device pointer + * @ah: The address handle to free + */ +void irdma_puda_free_ah(struct irdma_sc_dev *dev, struct irdma_sc_ah *ah) +{ + struct irdma_pci_f *rf = dev->back_dev; + + if (!ah) + return; + + if (ah->ah_info.ah_valid) { + irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_DESTROY, false, NULL, NULL); + irdma_free_rsrc(rf, rf->allocated_ahs, ah->ah_info.ah_idx); + } + + kfree(ah); +} + +/** + * irdma_gsi_ud_qp_ah_cb - callback after creation of AH for GSI/ID QP + * @cqp_request: pointer to cqp_request of create AH + */ +void irdma_gsi_ud_qp_ah_cb(struct irdma_cqp_request *cqp_request) +{ + struct irdma_sc_ah *sc_ah = cqp_request->param; + + if (!cqp_request->compl_info.op_ret_val) + sc_ah->ah_info.ah_valid = true; + else + sc_ah->ah_info.ah_valid = false; +} + +/** + * irdma_prm_add_pble_mem - add moemory to pble resources + * @pprm: pble resource manager + * @pchunk: chunk of memory to add + */ +enum irdma_status_code irdma_prm_add_pble_mem(struct irdma_pble_prm *pprm, + struct irdma_chunk *pchunk) +{ + u64 sizeofbitmap; + + if (pchunk->size & 0xfff) + return IRDMA_ERR_PARAM; + + sizeofbitmap = (u64)pchunk->size >> pprm->pble_shift; + + pchunk->bitmapmem.size = sizeofbitmap >> 3; + pchunk->bitmapmem.va = kzalloc(pchunk->bitmapmem.size, GFP_ATOMIC); + + if (!pchunk->bitmapmem.va) + return IRDMA_ERR_NO_MEMORY; + + pchunk->bitmapbuf = pchunk->bitmapmem.va; + bitmap_zero(pchunk->bitmapbuf, sizeofbitmap); + + pchunk->sizeofbitmap = sizeofbitmap; + /* each pble is 8 bytes hence shift by 3 */ + pprm->total_pble_alloc += pchunk->size >> 3; + pprm->free_pble_cnt += pchunk->size >> 3; + + return 0; +} + +/** + * irdma_prm_add_pble_mem - get pble's from prm + * @pprm: pble resource manager + * @chunkinfo: nformation about chunk where pble's were acquired + * @mem_size: size of pble memory needed + * @vaddr: returns virtual address of pble memory + * @fpm_addr: returns fpm address of pble memory + */ +enum irdma_status_code +irdma_prm_get_pbles(struct irdma_pble_prm *pprm, + struct irdma_pble_chunkinfo *chunkinfo, u32 mem_size, + u64 *vaddr, u64 *fpm_addr) +{ + u64 bits_needed; + u64 bit_idx = PBLE_INVALID_IDX; + struct irdma_chunk *pchunk = NULL; + struct list_head *chunk_entry = pprm->clist.next; + u32 offset; + unsigned long flags; + *vaddr = 0; + *fpm_addr = 0; + + bits_needed = (mem_size + (1 << pprm->pble_shift) - 1) >> pprm->pble_shift; + + spin_lock_irqsave(&pprm->prm_lock, flags); + while (chunk_entry != &pprm->clist) { + pchunk = (struct irdma_chunk *)chunk_entry; + bit_idx = bitmap_find_next_zero_area(pchunk->bitmapbuf, + pchunk->sizeofbitmap, 0, + bits_needed, 0); + if (bit_idx < pchunk->sizeofbitmap) + break; + + /* list.next used macro */ + chunk_entry = pchunk->list.next; + } + + if (!pchunk || bit_idx >= pchunk->sizeofbitmap) { + spin_unlock_irqrestore(&pprm->prm_lock, flags); + return IRDMA_ERR_NO_MEMORY; + } + + bitmap_set(pchunk->bitmapbuf, bit_idx, bits_needed); + offset = bit_idx << pprm->pble_shift; + *vaddr = pchunk->vaddr + offset; + *fpm_addr = pchunk->fpm_addr + offset; + + chunkinfo->pchunk = pchunk; + chunkinfo->bit_idx = bit_idx; + chunkinfo->bits_used = bits_needed; + /* 3 is sizeof pble divide */ + pprm->free_pble_cnt -= chunkinfo->bits_used << (pprm->pble_shift - 3); + spin_unlock_irqrestore(&pprm->prm_lock, flags); + + return 0; +} + +/** + * irdma_prm_return pbles - return pbles back to prm + * @pprm: pble resource manager + * @chunkinfo: chunk where pble's were acquired and to be freed + */ +void irdma_prm_return_pbles(struct irdma_pble_prm *pprm, + struct irdma_pble_chunkinfo *chunkinfo) +{ + unsigned long flags; + + spin_lock_irqsave(&pprm->prm_lock, flags); + pprm->free_pble_cnt += chunkinfo->bits_used << (pprm->pble_shift - 3); + bitmap_clear(chunkinfo->pchunk->bitmapbuf, chunkinfo->bit_idx, + chunkinfo->bits_used); + spin_unlock_irqrestore(&pprm->prm_lock, flags); +} + +/** + * irdma_free_paged_mem - free virtual paged memory back to system + * @chunk: chunk to free with paged memory + */ +void irdma_pble_free_paged_mem(struct irdma_chunk *chunk) +{ + struct pci_dev *pcidev = chunk->dev->hw->pdev; + int i; + + if (!chunk->pg_cnt) + goto done; + + for (i = 0; i < chunk->pg_cnt; i++) + dma_unmap_page(&pcidev->dev, chunk->dmainfo.dmaaddrs[i], + PAGE_SIZE, DMA_BIDIRECTIONAL); + +done: + kfree(chunk->dmainfo.dmaaddrs); + chunk->dmainfo.dmaaddrs = NULL; + vfree((void *)(uintptr_t)chunk->vaddr); + chunk->vaddr = 0; + chunk->type = 0; +} + +/** + * irdma_pble_get_paged_mem -allocate paged memory for pbles + * @chunk: chunk to add for paged memory + * @pg_cnt: number of pages needed + */ +enum irdma_status_code irdma_pble_get_paged_mem(struct irdma_chunk *chunk, + int pg_cnt) +{ + struct pci_dev *pcidev = chunk->dev->hw->pdev; + struct page *page; + u8 *addr; + u32 size; + int i; + + chunk->dmainfo.dmaaddrs = kzalloc(pg_cnt << 3, GFP_KERNEL); + if (!chunk->dmainfo.dmaaddrs) + return IRDMA_ERR_NO_MEMORY; + + size = PAGE_SIZE * pg_cnt; + chunk->vaddr = (uintptr_t)vmalloc(size); + if (!chunk->vaddr) { + kfree(chunk->dmainfo.dmaaddrs); + chunk->dmainfo.dmaaddrs = NULL; + return IRDMA_ERR_NO_MEMORY; + } + + chunk->size = size; + addr = (u8 *)(uintptr_t)chunk->vaddr; + + for (i = 0; i < pg_cnt; i++) { + page = vmalloc_to_page((void *)addr); + if (!page) + break; + + chunk->dmainfo.dmaaddrs[i] = dma_map_page(&pcidev->dev, page, 0, + PAGE_SIZE, + DMA_BIDIRECTIONAL); + if (dma_mapping_error(&pcidev->dev, chunk->dmainfo.dmaaddrs[i])) + break; + + addr += PAGE_SIZE; + } + + chunk->pg_cnt = i; + chunk->type = PBLE_SD_PAGED; + if (i == pg_cnt) + return 0; + + irdma_pble_free_paged_mem(chunk); + + return IRDMA_ERR_NO_MEMORY; +} + +/** + * irdma_alloc_ws_node_id - Allocate a tx scheduler node ID + * @dev: device pointer + */ +u16 irdma_alloc_ws_node_id(struct irdma_sc_dev *dev) +{ + struct irdma_pci_f *rf = dev->back_dev; + u32 next = 1; + u32 node_id; + + if (irdma_alloc_rsrc(rf, rf->allocated_ws_nodes, rf->max_ws_node_id, + &node_id, &next)) + return IRDMA_WS_NODE_INVALID; + + return (u16)node_id; +} + +/** + * irdma_free_ws_node_id - Free a tx scheduler node ID + * @dev: device pointer + * @node_id: Work scheduler node ID + */ +void irdma_free_ws_node_id(struct irdma_sc_dev *dev, u16 node_id) +{ + struct irdma_pci_f *rf = dev->back_dev; + + irdma_free_rsrc(rf, rf->allocated_ws_nodes, (u32)node_id); +} + +/** + * irdma_modify_qp_to_err - Modify a QP to error + * @sc_qp: qp structure + */ +void irdma_modify_qp_to_err(struct irdma_sc_qp *sc_qp) +{ + struct irdma_qp *qp = sc_qp->qp_uk.back_qp; + struct ib_qp_attr attr; + + attr.qp_state = IB_QPS_ERR; + irdma_modify_qp(&qp->ibqp, &attr, IB_QP_STATE, NULL); +} + +/** + * irdma_upload_qp_context - upload raw QP context + * @iwqp: QP pointer + * @freeze: freeze QP + * @raw: raw context flag + */ +int irdma_upload_qp_context(struct irdma_qp *iwqp, bool freeze, bool raw) +{ + struct irdma_dma_mem dma_mem; + struct irdma_sc_dev *dev; + struct irdma_sc_qp *qp; + struct irdma_cqp *iwcqp; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + struct irdma_upload_context_info *info; + struct irdma_pci_f *rf; + int ret; + u32 *ctx; + + rf = iwqp->iwdev->rf; + if (!rf) + return -EINVAL; + + qp = &iwqp->sc_qp; + dev = &rf->sc_dev; + iwcqp = &rf->cqp; + + cqp_request = irdma_get_cqp_request(iwcqp, true); + if (!cqp_request) + return -EINVAL; + + cqp_info = &cqp_request->info; + info = &cqp_info->in.u.qp_upload_context.info; + memset(info, 0, sizeof(struct irdma_upload_context_info)); + cqp_info->cqp_cmd = IRDMA_OP_QP_UPLOAD_CONTEXT; + cqp_info->post_sq = 1; + cqp_info->in.u.qp_upload_context.dev = dev; + cqp_info->in.u.qp_upload_context.scratch = (u64)cqp_request; + + dma_mem.size = ALIGN(PAGE_SIZE, PAGE_SIZE); + dma_mem.va = dma_alloc_coherent(hw_to_dev(dev->hw), dma_mem.size, + &dma_mem.pa, GFP_KERNEL); + if (!dma_mem.va) { + irdma_free_cqp_request(&rf->cqp, cqp_request); + return -ENOMEM; + } + + ctx = (u32 *)dma_mem.va; + info->buf_pa = dma_mem.pa; + info->raw_format = raw; + info->freeze_qp = freeze; + info->qp_type = qp->qp_type; /* 1 is iWARP and 2 UDA */ + info->qp_id = qp->qp_uk.qp_id; + + ret = irdma_handle_cqp_op(rf, cqp_request); + if (ret) + goto error; + + dev_info(rfdev_to_dev(dev), "PRINT CONTXT QP [%d]\n", info->qp_id); + { + u32 i, j; + + for (i = 0, j = 0; i < 32; i++, j += 4) + pr_info("%d:\t [%08X %08x %08X %08X]\n", (j * 4), + ctx[j], ctx[j + 1], ctx[j + 2], ctx[j + 3]); + } +error: + dma_free_coherent(hw_to_dev(dev->hw), dma_mem.size, dma_mem.va, + dma_mem.pa); + dma_mem.va = NULL; + return ret; +}