From: Leon Romanovsky <leon@kernel.org>
To: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: gregkh@linuxfoundation.org, jgg@ziepe.ca,
Mustafa Ismail <mustafa.ismail@intel.com>,
netdev@vger.kernel.org, linux-rdma@vger.kernel.org,
nhorman@redhat.com, sassmann@redhat.com,
Shiraz Saleem <shiraz.saleem@intel.com>
Subject: Re: [RFC PATCH v5 12/16] RDMA/irdma: Add miscellaneous utility definitions
Date: Fri, 17 Apr 2020 23:32:16 +0300 [thread overview]
Message-ID: <20200417203216.GH3083@unreal> (raw)
In-Reply-To: <20200417171251.1533371-13-jeffrey.t.kirsher@intel.com>
On Fri, Apr 17, 2020 at 10:12:47AM -0700, Jeff Kirsher wrote:
> From: Mustafa Ismail <mustafa.ismail@intel.com>
>
> Add miscellaneous utility functions and headers.
>
> Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
> ---
> drivers/infiniband/hw/irdma/osdep.h | 105 ++
> drivers/infiniband/hw/irdma/protos.h | 93 +
> drivers/infiniband/hw/irdma/status.h | 69 +
> drivers/infiniband/hw/irdma/utils.c | 2445 ++++++++++++++++++++++++++
> 4 files changed, 2712 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 000000000000..23ddfb8e9568
> --- /dev/null
> +++ b/drivers/infiniband/hw/irdma/osdep.h
> @@ -0,0 +1,105 @@
> +/* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB */
> +/* Copyright (c) 2015 - 2019 Intel Corporation */
> +#ifndef IRDMA_OSDEP_H
> +#define IRDMA_OSDEP_H
> +
> +#include <linux/version.h>
Why is that?
> +#include <linux/kernel.h>
> +#include <linux/vmalloc.h>
> +#include <linux/string.h>
> +#include <linux/bitops.h>
> +#include <linux/pci.h>
> +#include <linux/refcount.h>
> +#include <net/tcp.h>
> +#include <crypto/hash.h>
> +/* get readq/writeq support for 32 bit kernels, use the low-first version */
> +#include <linux/io-64-nonatomic-lo-hi.h>
> +
> +#define STATS_TIMER_DELAY 60000
> +#define rfdev_to_dev(ptr) (&((ptr)->hw->pdev->dev))
> +#define to_ibdev(iwdev) (&((iwdev)->ibdev))
> +#define hw_to_dev(hw) (&(hw)->pdev->dev)
I don't know if it is ok, but it is amazing to see how much indirection
layers you have.
> +#define irdma_debug_buf(dev, prefix, desc, buf, size) \
> + print_hex_dump_debug(prefix ": " desc " ", \
> + DUMP_PREFIX_OFFSET, \
> + 16, 8, buf, size, false)
> +
I think that it can be beneficial to be as ibdev_print_buf().
> +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);
> +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 000000000000..b86efb4ecf81
> --- /dev/null
> +++ b/drivers/infiniband/hw/irdma/protos.h
> @@ -0,0 +1,93 @@
> +/* 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_sc_suspend_resume_qps(struct irdma_sc_vsi *vsi, u8 suspend);
> +enum irdma_status_code irdma_cqp_qp_suspend_resume(struct irdma_sc_qp *qp,
> + u8 cmd);
> +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 000000000000..e894b6b00e89
> --- /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,
> +};
Please don't do vertical space alignment in all the places
> +#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 000000000000..be46d672afc5
> --- /dev/null
> +++ b/drivers/infiniband/hw/irdma/utils.c
> @@ -0,0 +1,2445 @@
> +// SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
> +/* Copyright (c) 2015 - 2019 Intel Corporation */
> +#include <linux/mii.h>
> +#include <linux/in.h>
> +#include <linux/init.h>
> +#include <asm/irq.h>
> +#include <asm/byteorder.h>
> +#include <net/neighbour.h>
> +#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)
ARP table in the RDMA driver looks strange, I see that it is legacy
from i40iw, but wonder if it is the right thing to do the same for
the new driver.
Thanks
next prev parent reply other threads:[~2020-04-17 20:32 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-17 17:12 [RFC PATCH v5 00/16] Add Intel Ethernet Protocol Driver for RDMA (irdma) Jeff Kirsher
2020-04-17 17:12 ` [RFC PATCH v5 01/16] RDMA/irdma: Add driver framework definitions Jeff Kirsher
2020-04-17 19:34 ` Leon Romanovsky
2020-04-21 0:23 ` Saleem, Shiraz
2020-04-21 0:46 ` Jason Gunthorpe
2020-04-21 18:19 ` Saleem, Shiraz
2020-04-21 18:22 ` Jason Gunthorpe
2020-04-23 0:32 ` Saleem, Shiraz
2020-04-23 15:02 ` Jason Gunthorpe
2020-04-23 17:15 ` Saleem, Shiraz
2020-04-23 19:03 ` Jason Gunthorpe
2020-04-23 23:54 ` Saleem, Shiraz
2020-04-24 0:48 ` Jason Gunthorpe
2020-04-27 23:57 ` Saleem, Shiraz
2020-04-28 0:03 ` Jason Gunthorpe
2020-04-21 7:14 ` Leon Romanovsky
2020-04-17 19:37 ` Jason Gunthorpe
2020-04-17 17:12 ` [RFC PATCH v5 02/16] RDMA/irdma: Implement device initialization definitions Jeff Kirsher
2020-04-17 17:12 ` [RFC PATCH v5 03/16] RDMA/irdma: Implement HW Admin Queue OPs Jeff Kirsher
2020-04-17 17:12 ` [RFC PATCH v5 04/16] RDMA/irdma: Add HMC backing store setup functions Jeff Kirsher
2020-04-17 20:17 ` Leon Romanovsky
2020-04-21 0:25 ` Saleem, Shiraz
2020-04-17 17:12 ` [RFC PATCH v5 05/16] RDMA/irdma: Add privileged UDA queue implementation Jeff Kirsher
2020-04-17 17:12 ` [RFC PATCH v5 06/16] RDMA/irdma: Add QoS definitions Jeff Kirsher
2020-04-17 17:12 ` [RFC PATCH v5 07/16] RDMA/irdma: Add connection manager Jeff Kirsher
2020-04-17 20:23 ` Leon Romanovsky
2020-04-21 0:26 ` Saleem, Shiraz
2020-04-21 7:33 ` Leon Romanovsky
2020-04-17 17:12 ` [RFC PATCH v5 08/16] RDMA/irdma: Add PBLE resource manager Jeff Kirsher
2020-04-17 17:12 ` [RFC PATCH v5 09/16] RDMA/irdma: Implement device supported verb APIs Jeff Kirsher
2020-04-17 19:59 ` Leon Romanovsky
2020-04-21 0:29 ` Saleem, Shiraz
2020-04-21 7:16 ` Leon Romanovsky
2020-04-17 17:12 ` [RFC PATCH v5 10/16] RDMA/irdma: Add RoCEv2 UD OP support Jeff Kirsher
2020-04-17 19:46 ` Leon Romanovsky
2020-04-21 0:27 ` Saleem, Shiraz
2020-04-17 17:12 ` [RFC PATCH v5 11/16] RDMA/irdma: Add user/kernel shared libraries Jeff Kirsher
2020-04-17 17:12 ` [RFC PATCH v5 12/16] RDMA/irdma: Add miscellaneous utility definitions Jeff Kirsher
2020-04-17 20:32 ` Leon Romanovsky [this message]
2020-04-21 0:27 ` Saleem, Shiraz
2020-04-21 7:30 ` Leon Romanovsky
2020-04-22 0:02 ` Saleem, Shiraz
2020-04-22 0:06 ` Jason Gunthorpe
2020-04-23 0:32 ` Saleem, Shiraz
2020-04-17 17:12 ` [RFC PATCH v5 13/16] RDMA/irdma: Add dynamic tracing for CM Jeff Kirsher
2020-04-17 17:12 ` [RFC PATCH v5 14/16] RDMA/irdma: Add ABI definitions Jeff Kirsher
2020-04-17 19:43 ` Leon Romanovsky
2020-04-21 0:29 ` Saleem, Shiraz
2020-04-21 7:22 ` Leon Romanovsky
2020-04-17 17:12 ` [RFC PATCH v5 15/16] RDMA/irdma: Add irdma Kconfig/Makefile and remove i40iw Jeff Kirsher
2020-04-17 17:12 ` [RFC PATCH v5 16/16] RDMA/irdma: Update MAINTAINERS file Jeff Kirsher
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all data and code used by this external index.