cxgbe(4): Read the rx 'c' channel for a port and make it available.
MFC after: 1 week Sponsored by: Chelsio Communications
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763db58932
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dfff1de729
@ -306,6 +306,7 @@ struct port_info {
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uint8_t tx_chan;
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uint8_t mps_bg_map; /* rx MPS buffer group bitmap */
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uint8_t rx_e_chan_map; /* rx TP e-channel bitmap */
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uint8_t rx_c_chan; /* rx TP c-channel */
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struct link_config link_cfg;
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struct ifmedia media;
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@ -6818,6 +6818,23 @@ static unsigned int t4_get_rx_e_chan_map(struct adapter *adap, int idx)
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return 1 << idx;
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}
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/*
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* TP RX c-channel associated with the port.
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*/
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static unsigned int t4_get_rx_c_chan(struct adapter *adap, int idx)
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{
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u32 param, val;
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int ret;
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param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
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V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_TPCHMAP));
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ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1, ¶m, &val);
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if (!ret)
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return (val >> (8 * idx)) & 0xff;
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return 0;
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}
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/**
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* t4_get_port_type_description - return Port Type string description
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* @port_type: firmware Port Type enumeration
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@ -9840,6 +9857,7 @@ int t4_port_init(struct adapter *adap, int mbox, int pf, int vf, int port_id)
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p->tx_chan = j;
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p->mps_bg_map = t4_get_mps_bg_map(adap, j);
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p->rx_e_chan_map = t4_get_rx_e_chan_map(adap, j);
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p->rx_c_chan = t4_get_rx_c_chan(adap, j);
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p->lport = j;
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if (!(adap->flags & IS_VF) ||
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@ -7077,6 +7077,8 @@ cxgbe_sysctls(struct port_info *pi)
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pi->mps_bg_map, "MPS buffer group map");
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SYSCTL_ADD_INT(ctx, children, OID_AUTO, "rx_e_chan_map", CTLFLAG_RD,
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NULL, pi->rx_e_chan_map, "TP rx e-channel map");
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SYSCTL_ADD_INT(ctx, children, OID_AUTO, "rx_c_chan", CTLFLAG_RD, NULL,
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pi->rx_c_chan, "TP rx c-channel");
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if (sc->flags & IS_VF)
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return;
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