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cxgbei: Return limits for the specific adapter the socket is on.
Reviewed by: mav Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D34929
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@ -1745,6 +1745,7 @@ icl_cxgbei_conn_transfer_done(struct icl_conn *ic, void *arg)
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}
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}
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#ifdef COMPAT_FREEBSD13
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static void
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cxgbei_limits(struct adapter *sc, void *arg)
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{
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@ -1771,6 +1772,62 @@ cxgbei_limits(struct adapter *sc, void *arg)
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end_synchronized_op(sc, LOCK_HELD);
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}
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#endif
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static int
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cxgbei_limits_fd(struct icl_drv_limits *idl, int fd)
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{
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struct find_ofld_adapter_rr fa;
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struct file *fp;
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struct socket *so;
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struct adapter *sc;
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struct cxgbei_data *ci;
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cap_rights_t rights;
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int error;
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error = fget(curthread, fd,
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cap_rights_init_one(&rights, CAP_SOCK_CLIENT), &fp);
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if (error != 0)
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return (error);
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if (fp->f_type != DTYPE_SOCKET) {
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fdrop(fp, curthread);
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return (EINVAL);
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}
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so = fp->f_data;
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if (so->so_type != SOCK_STREAM ||
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so->so_proto->pr_protocol != IPPROTO_TCP) {
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fdrop(fp, curthread);
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return (EINVAL);
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}
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/* Find the adapter offloading this socket. */
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fa.sc = NULL;
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fa.so = so;
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t4_iterate(find_offload_adapter, &fa);
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if (fa.sc == NULL) {
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fdrop(fp, curthread);
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return (ENXIO);
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}
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fdrop(fp, curthread);
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sc = fa.sc;
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error = begin_synchronized_op(sc, NULL, HOLD_LOCK, "t4lims");
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if (error != 0)
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return (error);
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if (uld_active(sc, ULD_ISCSI)) {
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ci = sc->iscsi_ulp_softc;
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MPASS(ci != NULL);
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idl->idl_max_recv_data_segment_length = ci->max_rx_data_len;
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idl->idl_max_send_data_segment_length = ci->max_tx_data_len;
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} else
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error = ENXIO;
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end_synchronized_op(sc, LOCK_HELD);
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return (error);
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}
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static int
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icl_cxgbei_limits(struct icl_drv_limits *idl, int socket)
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@ -1784,9 +1841,14 @@ icl_cxgbei_limits(struct icl_drv_limits *idl, int socket)
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idl->idl_max_burst_length = max_burst_length;
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idl->idl_first_burst_length = first_burst_length;
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t4_iterate(cxgbei_limits, idl);
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#ifdef COMPAT_FREEBSD13
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if (socket == 0) {
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t4_iterate(cxgbei_limits, idl);
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return (0);
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}
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#endif
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return (0);
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return (cxgbei_limits_fd(idl, socket));
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}
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int
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