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bhyve: Some fwctl simplifications.
- Collapse IDENT_SEND/IDENT_WAIT states down to a single state. - Remove unused 'len' argument to op_data callback. The value passed in (total amount of remaining data to receive) didn't seem very useful and no op_data implementations used it. Reviewed by: corvink, markj Differential Revision: https://reviews.freebsd.org/D41286
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@ -63,8 +63,7 @@
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* Back-end state-machine
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*/
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static enum state {
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IDENT_WAIT,
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IDENT_SEND,
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IDENT,
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REQ,
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RESP
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} be_state;
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@ -75,7 +74,7 @@ static u_int ident_idx;
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struct op_info {
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int op;
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int (*op_start)(uint32_t len);
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void (*op_data)(uint32_t data, uint32_t len);
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void (*op_data)(uint32_t data);
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int (*op_result)(struct iovec **data);
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void (*op_done)(struct iovec *data);
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};
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@ -120,7 +119,7 @@ errop_start(uint32_t len __unused)
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}
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static void
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errop_data(uint32_t data __unused, uint32_t len __unused)
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errop_data(uint32_t data __unused)
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{
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/* ignore */
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@ -192,7 +191,7 @@ fget_start(uint32_t len)
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}
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static void
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fget_data(uint32_t data, uint32_t len __unused)
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fget_data(uint32_t data)
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{
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assert(fget_cnt + sizeof(uint32_t) <= sizeof(fget_str));
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@ -347,7 +346,7 @@ fwctl_request_data(uint32_t value)
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else
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rinfo.req_size -= sizeof(uint32_t);
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(*rinfo.req_op->op_data)(value, rinfo.req_size);
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(*rinfo.req_op->op_data)(value);
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if (rinfo.req_size < sizeof(uint32_t)) {
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fwctl_request_done();
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@ -360,7 +359,6 @@ fwctl_request_data(uint32_t value)
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static int
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fwctl_request(uint32_t value)
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{
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int ret;
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ret = 0;
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@ -451,12 +449,11 @@ fwctl_reset(void)
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/* Discard partially-received request. */
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memset(&rinfo, 0, sizeof(rinfo));
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break;
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case IDENT_WAIT:
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case IDENT_SEND:
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case IDENT:
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break;
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}
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be_state = IDENT_SEND;
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be_state = IDENT;
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ident_idx = 0;
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}
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@ -472,7 +469,7 @@ fwctl_inb(void)
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retval = 0xff;
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switch (be_state) {
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case IDENT_SEND:
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case IDENT:
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retval = sig[ident_idx++];
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if (ident_idx >= sizeof(sig))
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be_state = REQ;
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@ -580,5 +577,5 @@ fwctl_init(void)
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ops[OP_GET_LEN] = &fgetlen_info;
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ops[OP_GET] = &fgetval_info;
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be_state = IDENT_WAIT;
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be_state = IDENT;
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}
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