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48 #include <rdma/ib_mad.h>
53 * rvt_process_mad - process an incoming MAD packet
54 * @ibdev: the infiniband device this packet came in on
55 * @mad_flags: MAD flags
56 * @port_num: the port number this packet came in on, 1 based from ib core
57 * @in_wc: the work completion entry for this packet
58 * @in_grh: the global route header for this packet
59 * @in_mad: the incoming MAD
60 * @out_mad: any outgoing MAD reply
62 * Note that the verbs framework has already done the MAD sanity checks,
63 * and hop count/pointer updating for IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE
66 * This is called by the ib_mad module.
68 * Return: IB_MAD_RESULT_SUCCESS or error
70 int rvt_process_mad(struct ib_device
*ibdev
, int mad_flags
, u8 port_num
,
71 const struct ib_wc
*in_wc
, const struct ib_grh
*in_grh
,
72 const struct ib_mad_hdr
*in
, size_t in_mad_size
,
73 struct ib_mad_hdr
*out
, size_t *out_mad_size
,
74 u16
*out_mad_pkey_index
)
77 * MAD processing is quite different between hfi1 and qib. Therefore
78 * this is expected to be provided by the driver. Other drivers in the
79 * future may choose to implement this but it should not be made into a
82 if (ibport_num_to_idx(ibdev
, port_num
) < 0)
85 return IB_MAD_RESULT_FAILURE
;
88 static void rvt_send_mad_handler(struct ib_mad_agent
*agent
,
89 struct ib_mad_send_wc
*mad_send_wc
)
91 ib_free_send_mad(mad_send_wc
->send_buf
);
95 * rvt_create_mad_agents - create mad agents
96 * @rdi: rvt dev struct
98 * If driver needs to be notified of mad agent creation then call back
100 * Return 0 on success
102 int rvt_create_mad_agents(struct rvt_dev_info
*rdi
)
104 struct ib_mad_agent
*agent
;
105 struct rvt_ibport
*rvp
;
109 for (p
= 0; p
< rdi
->dparms
.nports
; p
++) {
111 agent
= ib_register_mad_agent(&rdi
->ibdev
, p
+ 1,
113 NULL
, 0, rvt_send_mad_handler
,
116 ret
= PTR_ERR(agent
);
120 rvp
->send_agent
= agent
;
122 if (rdi
->driver_f
.notify_create_mad_agent
)
123 rdi
->driver_f
.notify_create_mad_agent(rdi
, p
);
129 for (p
= 0; p
< rdi
->dparms
.nports
; p
++) {
131 if (rvp
->send_agent
) {
132 agent
= rvp
->send_agent
;
133 rvp
->send_agent
= NULL
;
134 ib_unregister_mad_agent(agent
);
135 if (rdi
->driver_f
.notify_free_mad_agent
)
136 rdi
->driver_f
.notify_free_mad_agent(rdi
, p
);
144 * rvt_free_mad_agents - free up mad agents
145 * @rdi: rvt dev struct
147 * If driver needs notification of mad agent removal make the call back
149 void rvt_free_mad_agents(struct rvt_dev_info
*rdi
)
151 struct ib_mad_agent
*agent
;
152 struct rvt_ibport
*rvp
;
155 for (p
= 0; p
< rdi
->dparms
.nports
; p
++) {
157 if (rvp
->send_agent
) {
158 agent
= rvp
->send_agent
;
159 rvp
->send_agent
= NULL
;
160 ib_unregister_mad_agent(agent
);
163 rdma_destroy_ah(&rvp
->sm_ah
->ibah
);
167 if (rdi
->driver_f
.notify_free_mad_agent
)
168 rdi
->driver_f
.notify_free_mad_agent(rdi
, p
);