cxgb4: get on-chip queue info from FW and create a memory window for them
Get info about the availability of Tx on-chip queues from FW and if they
are supported set up a memory window for them. iw_cxgb4 will be using them.
Move the existing window setup later in the init sequence, after we have
collected the new info.
Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/cxgb4/cxgb4_main.c b/drivers/net/cxgb4/cxgb4_main.c
index 0af6d67..47e8936 100644
--- a/drivers/net/cxgb4/cxgb4_main.c
+++ b/drivers/net/cxgb4/cxgb4_main.c
@@ -2897,6 +2897,21 @@
t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 2),
(bar0 + MEMWIN2_BASE) | BIR(0) |
WINDOW(ilog2(MEMWIN2_APERTURE) - 10));
+ if (adap->vres.ocq.size) {
+ unsigned int start, sz_kb;
+
+ start = pci_resource_start(adap->pdev, 2) +
+ OCQ_WIN_OFFSET(adap->pdev, &adap->vres);
+ sz_kb = roundup_pow_of_two(adap->vres.ocq.size) >> 10;
+ t4_write_reg(adap,
+ PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 3),
+ start | BIR(1) | WINDOW(ilog2(sz_kb)));
+ t4_write_reg(adap,
+ PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_OFFSET, 3),
+ adap->vres.ocq.start);
+ t4_read_reg(adap,
+ PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_OFFSET, 3));
+ }
}
static int adap_init1(struct adapter *adap, struct fw_caps_config_cmd *c)
@@ -2954,7 +2969,6 @@
t4_write_reg(adap, TP_PIO_ADDR, TP_INGRESS_CONFIG);
v = t4_read_reg(adap, TP_PIO_DATA);
t4_write_reg(adap, TP_PIO_DATA, v & ~CSUM_HAS_PSEUDO_HDR);
- setup_memwin(adap);
return 0;
}
@@ -3073,13 +3087,17 @@
params[1] = FW_PARAM_PFVF(SQRQ_END);
params[2] = FW_PARAM_PFVF(CQ_START);
params[3] = FW_PARAM_PFVF(CQ_END);
- ret = t4_query_params(adap, 0, 0, 0, 4, params, val);
+ params[4] = FW_PARAM_PFVF(OCQ_START);
+ params[5] = FW_PARAM_PFVF(OCQ_END);
+ ret = t4_query_params(adap, 0, 0, 0, 6, params, val);
if (ret < 0)
goto bye;
adap->vres.qp.start = val[0];
adap->vres.qp.size = val[1] - val[0] + 1;
adap->vres.cq.start = val[2];
adap->vres.cq.size = val[3] - val[2] + 1;
+ adap->vres.ocq.start = val[4];
+ adap->vres.ocq.size = val[5] - val[4] + 1;
}
if (c.iscsicaps) {
params[0] = FW_PARAM_PFVF(ISCSI_START);
@@ -3139,6 +3157,7 @@
}
#endif
+ setup_memwin(adap);
return 0;
/*
@@ -3221,6 +3240,7 @@
t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd,
adap->params.b_wnd);
+ setup_memwin(adap);
if (cxgb_up(adap))
return PCI_ERS_RESULT_DISCONNECT;
return PCI_ERS_RESULT_RECOVERED;