qed: iWARP CM add passive side connect

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>

2 files changed, 27 insertions, 1 deletions

diff --git a/include/linux/qed/common_hsi.h b/include/linux/qed/common_hsi.h
index 885ae1379b5a..39e2a2ac2471 100644
--- a/include/linux/qed/common_hsi.h
+++ b/include/linux/qed/common_hsi.h
@@ -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 { \
diff --git a/include/linux/qed/qed_rdma_if.h b/include/linux/qed/qed_rdma_if.h
index 28df5688ad0c..c4c241fe2579 100644
--- a/include/linux/qed/qed_rdma_if.h
+++ b/include/linux/qed/qed_rdma_if.h
@@ -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);
 
 };