From: Kumar Sanghvi Date: Sat, 10 Mar 2018 22:48:24 +0000 (+0530) Subject: net/cxgbe: enable RSS for VF X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=bfcb257d3014;p=dpdk.git net/cxgbe: enable RSS for VF Query firmware and configure RSS for VF. Signed-off-by: Kumar Sanghvi Signed-off-by: Rahul Lakkireddy --- diff --git a/drivers/net/cxgbe/base/common.h b/drivers/net/cxgbe/base/common.h index d74903dfd8..567e55ec20 100644 --- a/drivers/net/cxgbe/base/common.h +++ b/drivers/net/cxgbe/base/common.h @@ -210,6 +210,26 @@ struct arch_specific_params { u16 mps_tcam_size; }; +/* + * Global Receive Side Scaling (RSS) parameters in host-native format. + */ +struct rss_params { + unsigned int mode; /* RSS mode */ + union { + struct { + uint synmapen:1; /* SYN Map Enable */ + uint syn4tupenipv6:1; /* en 4-tuple IPv6 SYNs hash */ + uint syn2tupenipv6:1; /* en 2-tuple IPv6 SYNs hash */ + uint syn4tupenipv4:1; /* en 4-tuple IPv4 SYNs hash */ + uint syn2tupenipv4:1; /* en 2-tuple IPv4 SYNs hash */ + uint ofdmapen:1; /* Offload Map Enable */ + uint tnlmapen:1; /* Tunnel Map Enable */ + uint tnlalllookup:1; /* Tunnel All Lookup */ + uint hashtoeplitz:1; /* use Toeplitz hash */ + } basicvirtual; + } u; +}; + /* * Maximum resources provisioned for a PCI VF. */ @@ -232,6 +252,7 @@ struct adapter_params { struct vpd_params vpd; struct pci_params pci; struct devlog_params devlog; + struct rss_params rss; struct vf_resources vfres; enum pcie_memwin drv_memwin; @@ -348,6 +369,7 @@ int t4vf_query_params(struct adapter *adap, unsigned int nparams, const u32 *params, u32 *vals); int t4vf_get_dev_params(struct adapter *adap); int t4vf_get_vpd_params(struct adapter *adap); +int t4vf_get_rss_glb_config(struct adapter *adap); int t4vf_set_params(struct adapter *adapter, unsigned int nparams, const u32 *params, const u32 *vals); int t4_set_params_timeout(struct adapter *adap, unsigned int mbox, diff --git a/drivers/net/cxgbe/base/t4fw_interface.h b/drivers/net/cxgbe/base/t4fw_interface.h index 6c5c972701..3a89814ff3 100644 --- a/drivers/net/cxgbe/base/t4fw_interface.h +++ b/drivers/net/cxgbe/base/t4fw_interface.h @@ -187,6 +187,7 @@ enum fw_cmd_opcodes { FW_VI_ENABLE_CMD = 0x17, FW_PORT_CMD = 0x1b, FW_RSS_IND_TBL_CMD = 0x20, + FW_RSS_GLB_CONFIG_CMD = 0x22, FW_RSS_VI_CONFIG_CMD = 0x23, FW_DEBUG_CMD = 0x81, }; @@ -1779,6 +1780,83 @@ struct fw_rss_ind_tbl_cmd { #define G_FW_RSS_IND_TBL_CMD_IQ2(x) \ (((x) >> S_FW_RSS_IND_TBL_CMD_IQ2) & M_FW_RSS_IND_TBL_CMD_IQ2) +struct fw_rss_glb_config_cmd { + __be32 op_to_write; + __be32 retval_len16; + union fw_rss_glb_config { + struct fw_rss_glb_config_manual { + __be32 mode_pkd; + __be32 r3; + __be64 r4; + __be64 r5; + } manual; + struct fw_rss_glb_config_basicvirtual { + __be32 mode_keymode; + __be32 synmapen_to_hashtoeplitz; + __be64 r8; + __be64 r9; + } basicvirtual; + } u; +}; + +#define S_FW_RSS_GLB_CONFIG_CMD_MODE 28 +#define M_FW_RSS_GLB_CONFIG_CMD_MODE 0xf +#define G_FW_RSS_GLB_CONFIG_CMD_MODE(x) \ + (((x) >> S_FW_RSS_GLB_CONFIG_CMD_MODE) & M_FW_RSS_GLB_CONFIG_CMD_MODE) + +#define FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL 1 + +#define S_FW_RSS_GLB_CONFIG_CMD_SYNMAPEN 8 +#define V_FW_RSS_GLB_CONFIG_CMD_SYNMAPEN(x) \ + ((x) << S_FW_RSS_GLB_CONFIG_CMD_SYNMAPEN) +#define F_FW_RSS_GLB_CONFIG_CMD_SYNMAPEN V_FW_RSS_GLB_CONFIG_CMD_SYNMAPEN(1U) + +#define S_FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6 7 +#define V_FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6(x) \ + ((x) << S_FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6) +#define F_FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6 \ + V_FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6(1U) + +#define S_FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6 6 +#define V_FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6(x) \ + ((x) << S_FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6) +#define F_FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6 \ + V_FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6(1U) + +#define S_FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4 5 +#define V_FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4(x) \ + ((x) << S_FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4) +#define F_FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4 \ + V_FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4(1U) + +#define S_FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4 4 +#define V_FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4(x) \ + ((x) << S_FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4) +#define F_FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4 \ + V_FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4(1U) + +#define S_FW_RSS_GLB_CONFIG_CMD_OFDMAPEN 3 +#define V_FW_RSS_GLB_CONFIG_CMD_OFDMAPEN(x) \ + ((x) << S_FW_RSS_GLB_CONFIG_CMD_OFDMAPEN) +#define F_FW_RSS_GLB_CONFIG_CMD_OFDMAPEN V_FW_RSS_GLB_CONFIG_CMD_OFDMAPEN(1U) + +#define S_FW_RSS_GLB_CONFIG_CMD_TNLMAPEN 2 +#define V_FW_RSS_GLB_CONFIG_CMD_TNLMAPEN(x) \ + ((x) << S_FW_RSS_GLB_CONFIG_CMD_TNLMAPEN) +#define F_FW_RSS_GLB_CONFIG_CMD_TNLMAPEN V_FW_RSS_GLB_CONFIG_CMD_TNLMAPEN(1U) + +#define S_FW_RSS_GLB_CONFIG_CMD_TNLALLLKP 1 +#define V_FW_RSS_GLB_CONFIG_CMD_TNLALLLKP(x) \ + ((x) << S_FW_RSS_GLB_CONFIG_CMD_TNLALLLKP) +#define F_FW_RSS_GLB_CONFIG_CMD_TNLALLLKP \ + V_FW_RSS_GLB_CONFIG_CMD_TNLALLLKP(1U) + +#define S_FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ 0 +#define V_FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ(x) \ + ((x) << S_FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ) +#define F_FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ \ + V_FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ(1U) + struct fw_rss_vi_config_cmd { __be32 op_to_viid; __be32 retval_len16; diff --git a/drivers/net/cxgbe/base/t4vf_hw.c b/drivers/net/cxgbe/base/t4vf_hw.c index 8e48588b00..f0408757dc 100644 --- a/drivers/net/cxgbe/base/t4vf_hw.c +++ b/drivers/net/cxgbe/base/t4vf_hw.c @@ -509,6 +509,77 @@ unsigned int t4vf_get_pf_from_vf(struct adapter *adapter) G_SOURCEPF(whoami) : G_T6_SOURCEPF(whoami)); } +/** + * t4vf_get_rss_glb_config - retrieve adapter RSS Global Configuration + * @adapter: the adapter + * + * Retrieves global RSS mode and parameters with which we have to live + * and stores them in the @adapter's RSS parameters. + */ +int t4vf_get_rss_glb_config(struct adapter *adapter) +{ + struct rss_params *rss = &adapter->params.rss; + struct fw_rss_glb_config_cmd cmd, rpl; + int v; + + /* + * Execute an RSS Global Configuration read command to retrieve + * our RSS configuration. + */ + memset(&cmd, 0, sizeof(cmd)); + cmd.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_RSS_GLB_CONFIG_CMD) | + F_FW_CMD_REQUEST | + F_FW_CMD_READ); + cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd)); + v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl); + if (v != FW_SUCCESS) + return v; + + /* + * Translate the big-endian RSS Global Configuration into our + * cpu-endian format based on the RSS mode. We also do first level + * filtering at this point to weed out modes which don't support + * VF Drivers ... + */ + rss->mode = G_FW_RSS_GLB_CONFIG_CMD_MODE + (be32_to_cpu(rpl.u.manual.mode_pkd)); + switch (rss->mode) { + case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: { + u32 word = be32_to_cpu + (rpl.u.basicvirtual.synmapen_to_hashtoeplitz); + + rss->u.basicvirtual.synmapen = + ((word & F_FW_RSS_GLB_CONFIG_CMD_SYNMAPEN) != 0); + rss->u.basicvirtual.syn4tupenipv6 = + ((word & F_FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6) != 0); + rss->u.basicvirtual.syn2tupenipv6 = + ((word & F_FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6) != 0); + rss->u.basicvirtual.syn4tupenipv4 = + ((word & F_FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4) != 0); + rss->u.basicvirtual.syn2tupenipv4 = + ((word & F_FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4) != 0); + rss->u.basicvirtual.ofdmapen = + ((word & F_FW_RSS_GLB_CONFIG_CMD_OFDMAPEN) != 0); + rss->u.basicvirtual.tnlmapen = + ((word & F_FW_RSS_GLB_CONFIG_CMD_TNLMAPEN) != 0); + rss->u.basicvirtual.tnlalllookup = + ((word & F_FW_RSS_GLB_CONFIG_CMD_TNLALLLKP) != 0); + rss->u.basicvirtual.hashtoeplitz = + ((word & F_FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ) != 0); + + /* we need at least Tunnel Map Enable to be set */ + if (!rss->u.basicvirtual.tnlmapen) + return -EINVAL; + break; + } + + default: + /* all unknown/unsupported RSS modes result in an error */ + return -EINVAL; + } + return 0; +} + /** * t4vf_get_vfres - retrieve VF resource limits * @adapter: the adapter diff --git a/drivers/net/cxgbe/cxgbe.h b/drivers/net/cxgbe/cxgbe.h index f8904ad466..b32617a9dc 100644 --- a/drivers/net/cxgbe/cxgbe.h +++ b/drivers/net/cxgbe/cxgbe.h @@ -67,6 +67,7 @@ void init_rspq(struct adapter *adap, struct sge_rspq *q, unsigned int us, int setup_sge_fwevtq(struct adapter *adapter); void cfg_queues(struct rte_eth_dev *eth_dev); int cfg_queue_count(struct rte_eth_dev *eth_dev); +int init_rss(struct adapter *adap); int setup_rss(struct port_info *pi); void cxgbe_enable_rx_queues(struct port_info *pi); void print_port_info(struct adapter *adap); diff --git a/drivers/net/cxgbe/cxgbe_main.c b/drivers/net/cxgbe/cxgbe_main.c index 8e5cee5811..138e1c1590 100644 --- a/drivers/net/cxgbe/cxgbe_main.c +++ b/drivers/net/cxgbe/cxgbe_main.c @@ -346,14 +346,17 @@ static void setup_memwin(struct adapter *adap) MEMWIN_NIC)); } -static int init_rss(struct adapter *adap) +int init_rss(struct adapter *adap) { unsigned int i; - int err; - err = t4_init_rss_mode(adap, adap->mbox); - if (err) - return err; + if (is_pf4(adap)) { + int err; + + err = t4_init_rss_mode(adap, adap->mbox); + if (err) + return err; + } for_each_port(adap, i) { struct port_info *pi = adap2pinfo(adap, i); diff --git a/drivers/net/cxgbe/cxgbevf_main.c b/drivers/net/cxgbe/cxgbevf_main.c index f4d0f4de59..f3b83ecb99 100644 --- a/drivers/net/cxgbe/cxgbevf_main.c +++ b/drivers/net/cxgbe/cxgbevf_main.c @@ -114,6 +114,19 @@ static int adap_init0vf(struct adapter *adapter) return err; } + err = t4vf_get_rss_glb_config(adapter); + if (err) { + dev_err(adapter->pdev_dev, "unable to retrieve adapter" + " RSS parameters: err=%d\n", err); + return err; + } + if (adapter->params.rss.mode != + FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL) { + dev_err(adapter->pdev_dev, "unable to operate with global RSS" + " mode %d\n", adapter->params.rss.mode); + return -EINVAL; + } + /* If we're running on newer firmware, let it know that we're * prepared to deal with encapsulated CPL messages. Older * firmware won't understand this and we'll just get @@ -264,6 +277,9 @@ allocate_mac: print_adapter_info(adapter); print_port_info(adapter); + err = init_rss(adapter); + if (err) + goto out_free; return 0; out_free: