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qed: iWARP CM add passive side connect

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This patch implements the passive side connect.
It addresses pre-allocating resources, creating a connection
element upon valid SYN packet received. Calling upper layer and
implementation of the accept/reject calls.

Error handling is not part of this patch.

Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kalderon, Michal
2017-07-02 10:29:27 +03:00
committed by David S. Miller
parent 65a91a6cdb
commit 456a584947
9 changed files with 1039 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/qed/common_hsi.h
View File

@@ -38,6 +38,8 @@
#include <linux/slab.h>
/* dma_addr_t manip */
#define PTR_LO(x) ((u32)(((uintptr_t)(x)) & 0xffffffff))
#define PTR_HI(x) ((u32)((((uintptr_t)(x)) >> 16) >> 16))
#define DMA_LO_LE(x) cpu_to_le32(lower_32_bits(x))
#define DMA_HI_LE(x) cpu_to_le32(upper_32_bits(x))
#define DMA_REGPAIR_LE(x, val) do { \

26
include/linux/qed/qed_rdma_if.h
View File

@@ -471,7 +471,8 @@ struct qed_rdma_counters_out_params {
#define QED_ROCE_TX_FRAG_FAILURE (2)
enum qed_iwarp_event_type {
QED_IWARP_EVENT_MPA_REQUEST, /* Passive side request received */
QED_IWARP_EVENT_MPA_REQUEST, /* Passive side request received */
QED_IWARP_EVENT_PASSIVE_COMPLETE, /* ack on mpa response */
};
enum qed_tcp_ip_version {
@@ -516,6 +517,23 @@ struct qed_iwarp_listen_out {
void *handle;
};
struct qed_iwarp_accept_in {
void *ep_context;
void *cb_context;
struct qed_rdma_qp *qp;
const void *private_data;
u16 private_data_len;
u8 ord;
u8 ird;
};
struct qed_iwarp_reject_in {
void *ep_context;
void *cb_context;
const void *private_data;
u16 private_data_len;
};
struct qed_roce_ll2_header {
void *vaddr;
dma_addr_t baddr;
@@ -626,6 +644,12 @@ struct qed_rdma_ops {
struct qed_iwarp_listen_in *iparams,
struct qed_iwarp_listen_out *oparams);
int (*iwarp_accept)(void *rdma_cxt,
struct qed_iwarp_accept_in *iparams);
int (*iwarp_reject)(void *rdma_cxt,
struct qed_iwarp_reject_in *iparams);
int (*iwarp_destroy_listen)(void *rdma_cxt, void *handle);
};