diff options
| author | Dimitris Michailidis <dm@chelsio.com> | 2010-12-14 21:36:44 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-12-16 13:15:59 -0800 |
| commit | ef306b50b983be4873aed453c1feeaab22f3a098 (patch) | |
| tree | 3bebb611a4c3820179149dbcef372cf08d63f28a /drivers | |
| parent | 986d730a696277520084180071ac4873aac63905 (diff) | |
cxgb4: enable PCIe relaxed ordering
Enable relaxed ordering for descriptor reads and packet I/O.
Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/cxgb4/cxgb4_main.c | 14 | ||||
| -rw-r--r-- | drivers/net/cxgb4/sge.c | 5 |
2 files changed, 19 insertions, 0 deletions
diff --git a/drivers/net/cxgb4/cxgb4_main.c b/drivers/net/cxgb4/cxgb4_main.c index 848f89d19fb7..953d62a3403c 100644 --- a/drivers/net/cxgb4/cxgb4_main.c +++ b/drivers/net/cxgb4/cxgb4_main.c @@ -3535,6 +3535,19 @@ static void __devinit print_port_info(struct adapter *adap) } } +static void __devinit enable_pcie_relaxed_ordering(struct pci_dev *dev) +{ + u16 v; + int pos; + + pos = pci_pcie_cap(dev); + if (pos > 0) { + pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &v); + v |= PCI_EXP_DEVCTL_RELAX_EN; + pci_write_config_word(dev, pos + PCI_EXP_DEVCTL, v); + } +} + /* * Free the following resources: * - memory used for tables @@ -3609,6 +3622,7 @@ static int __devinit init_one(struct pci_dev *pdev, } pci_enable_pcie_error_reporting(pdev); + enable_pcie_relaxed_ordering(pdev); pci_set_master(pdev); pci_save_state(pdev); diff --git a/drivers/net/cxgb4/sge.c b/drivers/net/cxgb4/sge.c index 17022258ed68..cc0b9975d472 100644 --- a/drivers/net/cxgb4/sge.c +++ b/drivers/net/cxgb4/sge.c @@ -2014,6 +2014,8 @@ int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *iq, bool fwevtq, flsz = fl->size / 8 + STAT_LEN / sizeof(struct tx_desc); c.iqns_to_fl0congen = htonl(FW_IQ_CMD_FL0PACKEN | + FW_IQ_CMD_FL0FETCHRO(1) | + FW_IQ_CMD_FL0DATARO(1) | FW_IQ_CMD_FL0PADEN); c.fl0dcaen_to_fl0cidxfthresh = htons(FW_IQ_CMD_FL0FBMIN(2) | FW_IQ_CMD_FL0FBMAX(3)); @@ -2106,6 +2108,7 @@ int t4_sge_alloc_eth_txq(struct adapter *adap, struct sge_eth_txq *txq, c.viid_pkd = htonl(FW_EQ_ETH_CMD_VIID(pi->viid)); c.fetchszm_to_iqid = htonl(FW_EQ_ETH_CMD_HOSTFCMODE(2) | FW_EQ_ETH_CMD_PCIECHN(pi->tx_chan) | + FW_EQ_ETH_CMD_FETCHRO(1) | FW_EQ_ETH_CMD_IQID(iqid)); c.dcaen_to_eqsize = htonl(FW_EQ_ETH_CMD_FBMIN(2) | FW_EQ_ETH_CMD_FBMAX(3) | @@ -2158,6 +2161,7 @@ int t4_sge_alloc_ctrl_txq(struct adapter *adap, struct sge_ctrl_txq *txq, c.physeqid_pkd = htonl(0); c.fetchszm_to_iqid = htonl(FW_EQ_CTRL_CMD_HOSTFCMODE(2) | FW_EQ_CTRL_CMD_PCIECHN(pi->tx_chan) | + FW_EQ_CTRL_CMD_FETCHRO | FW_EQ_CTRL_CMD_IQID(iqid)); c.dcaen_to_eqsize = htonl(FW_EQ_CTRL_CMD_FBMIN(2) | FW_EQ_CTRL_CMD_FBMAX(3) | @@ -2207,6 +2211,7 @@ int t4_sge_alloc_ofld_txq(struct adapter *adap, struct sge_ofld_txq *txq, FW_EQ_OFLD_CMD_EQSTART | FW_LEN16(c)); c.fetchszm_to_iqid = htonl(FW_EQ_OFLD_CMD_HOSTFCMODE(2) | FW_EQ_OFLD_CMD_PCIECHN(pi->tx_chan) | + FW_EQ_OFLD_CMD_FETCHRO(1) | FW_EQ_OFLD_CMD_IQID(iqid)); c.dcaen_to_eqsize = htonl(FW_EQ_OFLD_CMD_FBMIN(2) | FW_EQ_OFLD_CMD_FBMAX(3) | |