mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-09-09 01:28:05 -04:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
5
drivers/infiniband/ulp/isert/Kconfig
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5
drivers/infiniband/ulp/isert/Kconfig
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config INFINIBAND_ISERT
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tristate "iSCSI Extensions for RDMA (iSER) target support"
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depends on INET && INFINIBAND_ADDR_TRANS && TARGET_CORE && ISCSI_TARGET
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---help---
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Support for iSCSI Extensions for RDMA (iSER) Target on Infiniband fabrics.
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2
drivers/infiniband/ulp/isert/Makefile
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2
drivers/infiniband/ulp/isert/Makefile
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@ -0,0 +1,2 @@
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ccflags-y := -Idrivers/target -Idrivers/target/iscsi
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obj-$(CONFIG_INFINIBAND_ISERT) += ib_isert.o
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3505
drivers/infiniband/ulp/isert/ib_isert.c
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3505
drivers/infiniband/ulp/isert/ib_isert.c
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File diff suppressed because it is too large
Load diff
201
drivers/infiniband/ulp/isert/ib_isert.h
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201
drivers/infiniband/ulp/isert/ib_isert.h
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#include <linux/socket.h>
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#include <linux/in.h>
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#include <linux/in6.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/rdma_cm.h>
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#define ISERT_RDMA_LISTEN_BACKLOG 10
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#define ISCSI_ISER_SG_TABLESIZE 256
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#define ISER_FASTREG_LI_WRID 0xffffffffffffffffULL
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enum isert_desc_type {
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ISCSI_TX_CONTROL,
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ISCSI_TX_DATAIN
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};
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enum iser_ib_op_code {
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ISER_IB_RECV,
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ISER_IB_SEND,
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ISER_IB_RDMA_WRITE,
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ISER_IB_RDMA_READ,
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};
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enum iser_conn_state {
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ISER_CONN_INIT,
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ISER_CONN_UP,
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ISER_CONN_FULL_FEATURE,
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ISER_CONN_TERMINATING,
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ISER_CONN_DOWN,
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};
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struct iser_rx_desc {
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struct iser_hdr iser_header;
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struct iscsi_hdr iscsi_header;
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char data[ISER_RECV_DATA_SEG_LEN];
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u64 dma_addr;
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struct ib_sge rx_sg;
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char pad[ISER_RX_PAD_SIZE];
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} __packed;
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struct iser_tx_desc {
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struct iser_hdr iser_header;
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struct iscsi_hdr iscsi_header;
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enum isert_desc_type type;
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u64 dma_addr;
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struct ib_sge tx_sg[2];
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int num_sge;
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struct isert_cmd *isert_cmd;
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struct llist_node *comp_llnode_batch;
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struct llist_node comp_llnode;
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bool llnode_active;
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struct ib_send_wr send_wr;
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} __packed;
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enum isert_indicator {
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ISERT_PROTECTED = 1 << 0,
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ISERT_DATA_KEY_VALID = 1 << 1,
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ISERT_PROT_KEY_VALID = 1 << 2,
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ISERT_SIG_KEY_VALID = 1 << 3,
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};
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struct pi_context {
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struct ib_mr *prot_mr;
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struct ib_fast_reg_page_list *prot_frpl;
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struct ib_mr *sig_mr;
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};
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struct fast_reg_descriptor {
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struct list_head list;
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struct ib_mr *data_mr;
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struct ib_fast_reg_page_list *data_frpl;
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u8 ind;
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struct pi_context *pi_ctx;
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};
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struct isert_data_buf {
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struct scatterlist *sg;
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int nents;
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u32 sg_off;
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u32 len; /* cur_rdma_length */
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u32 offset;
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unsigned int dma_nents;
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enum dma_data_direction dma_dir;
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};
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enum {
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DATA = 0,
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PROT = 1,
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SIG = 2,
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};
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struct isert_rdma_wr {
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struct list_head wr_list;
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struct isert_cmd *isert_cmd;
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enum iser_ib_op_code iser_ib_op;
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struct ib_sge *ib_sge;
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struct ib_sge s_ib_sge;
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int send_wr_num;
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struct ib_send_wr *send_wr;
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struct ib_send_wr s_send_wr;
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struct ib_sge ib_sg[3];
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struct isert_data_buf data;
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struct isert_data_buf prot;
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struct fast_reg_descriptor *fr_desc;
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};
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struct isert_cmd {
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uint32_t read_stag;
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uint32_t write_stag;
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uint64_t read_va;
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uint64_t write_va;
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u64 pdu_buf_dma;
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u32 pdu_buf_len;
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u32 read_va_off;
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u32 write_va_off;
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u32 rdma_wr_num;
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struct isert_conn *conn;
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struct iscsi_cmd *iscsi_cmd;
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struct iser_tx_desc tx_desc;
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struct isert_rdma_wr rdma_wr;
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struct work_struct comp_work;
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};
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struct isert_device;
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struct isert_conn {
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enum iser_conn_state state;
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int post_recv_buf_count;
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atomic_t post_send_buf_count;
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u32 responder_resources;
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u32 initiator_depth;
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bool pi_support;
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u32 max_sge;
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char *login_buf;
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char *login_req_buf;
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char *login_rsp_buf;
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u64 login_req_dma;
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int login_req_len;
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u64 login_rsp_dma;
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unsigned int conn_rx_desc_head;
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struct iser_rx_desc *conn_rx_descs;
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struct ib_recv_wr conn_rx_wr[ISERT_MIN_POSTED_RX];
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struct iscsi_conn *conn;
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struct list_head conn_accept_node;
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struct completion conn_login_comp;
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struct completion login_req_comp;
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struct iser_tx_desc conn_login_tx_desc;
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struct rdma_cm_id *conn_cm_id;
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struct ib_pd *conn_pd;
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struct ib_mr *conn_mr;
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struct ib_qp *conn_qp;
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struct isert_device *conn_device;
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struct mutex conn_mutex;
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struct completion conn_wait;
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struct completion conn_wait_comp_err;
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struct kref conn_kref;
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struct list_head conn_fr_pool;
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int conn_fr_pool_size;
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/* lock to protect fastreg pool */
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spinlock_t conn_lock;
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struct work_struct release_work;
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#define ISERT_COMP_BATCH_COUNT 8
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int conn_comp_batch;
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struct llist_head conn_comp_llist;
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};
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#define ISERT_MAX_CQ 64
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struct isert_cq_desc {
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struct isert_device *device;
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int cq_index;
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struct work_struct cq_rx_work;
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struct work_struct cq_tx_work;
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};
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struct isert_device {
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int use_fastreg;
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bool pi_capable;
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int cqs_used;
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int refcount;
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int cq_active_qps[ISERT_MAX_CQ];
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struct ib_device *ib_device;
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struct ib_cq *dev_rx_cq[ISERT_MAX_CQ];
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struct ib_cq *dev_tx_cq[ISERT_MAX_CQ];
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struct isert_cq_desc *cq_desc;
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struct list_head dev_node;
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struct ib_device_attr dev_attr;
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int (*reg_rdma_mem)(struct iscsi_conn *conn,
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struct iscsi_cmd *cmd,
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struct isert_rdma_wr *wr);
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void (*unreg_rdma_mem)(struct isert_cmd *isert_cmd,
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struct isert_conn *isert_conn);
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};
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struct isert_np {
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struct iscsi_np *np;
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struct semaphore np_sem;
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struct rdma_cm_id *np_cm_id;
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struct mutex np_accept_mutex;
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struct list_head np_accept_list;
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struct completion np_login_comp;
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};
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47
drivers/infiniband/ulp/isert/isert_proto.h
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47
drivers/infiniband/ulp/isert/isert_proto.h
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@ -0,0 +1,47 @@
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/* From iscsi_iser.h */
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struct iser_hdr {
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u8 flags;
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u8 rsvd[3];
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__be32 write_stag; /* write rkey */
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__be64 write_va;
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__be32 read_stag; /* read rkey */
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__be64 read_va;
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} __packed;
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/*Constant PDU lengths calculations */
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#define ISER_HEADERS_LEN (sizeof(struct iser_hdr) + sizeof(struct iscsi_hdr))
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#define ISER_RECV_DATA_SEG_LEN 8192
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#define ISER_RX_PAYLOAD_SIZE (ISER_HEADERS_LEN + ISER_RECV_DATA_SEG_LEN)
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#define ISER_RX_LOGIN_SIZE (ISER_HEADERS_LEN + ISCSI_DEF_MAX_RECV_SEG_LEN)
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/* QP settings */
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/* Maximal bounds on received asynchronous PDUs */
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#define ISERT_MAX_TX_MISC_PDUS 4 /* NOOP_IN(2) , ASYNC_EVENT(2) */
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#define ISERT_MAX_RX_MISC_PDUS 6 /* NOOP_OUT(2), TEXT(1), *
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* SCSI_TMFUNC(2), LOGOUT(1) */
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#define ISCSI_DEF_XMIT_CMDS_MAX 128 /* from libiscsi.h, must be power of 2 */
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#define ISERT_QP_MAX_RECV_DTOS (ISCSI_DEF_XMIT_CMDS_MAX)
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#define ISERT_MIN_POSTED_RX (ISCSI_DEF_XMIT_CMDS_MAX >> 2)
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#define ISERT_INFLIGHT_DATAOUTS 8
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#define ISERT_QP_MAX_REQ_DTOS (ISCSI_DEF_XMIT_CMDS_MAX * \
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(1 + ISERT_INFLIGHT_DATAOUTS) + \
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ISERT_MAX_TX_MISC_PDUS + \
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ISERT_MAX_RX_MISC_PDUS)
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#define ISER_RX_PAD_SIZE (ISER_RECV_DATA_SEG_LEN + 4096 - \
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(ISER_RX_PAYLOAD_SIZE + sizeof(u64) + sizeof(struct ib_sge)))
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#define ISER_VER 0x10
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#define ISER_WSV 0x08
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#define ISER_RSV 0x04
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#define ISCSI_CTRL 0x10
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#define ISER_HELLO 0x20
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#define ISER_HELLORPLY 0x30
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