From: Shagun Agrawal Date: Wed, 4 Apr 2018 03:53:36 +0000 (+0530) Subject: net/cxgbe: add option to keep outer VLAN tag in QinQ X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=cda260a4ac1af94a3cb9e8fb5f537382f6ac3c04;p=dpdk.git net/cxgbe: add option to keep outer VLAN tag in QinQ Add devargs option to keep outer VLAN tag in Q-in-Q packets. Signed-off-by: Shagun Agrawal Signed-off-by: Kumar Sanghvi Signed-off-by: Rahul Lakkireddy --- diff --git a/doc/guides/nics/cxgbe.rst b/doc/guides/nics/cxgbe.rst index a4a7c944ac..38d434802c 100644 --- a/doc/guides/nics/cxgbe.rst +++ b/doc/guides/nics/cxgbe.rst @@ -127,6 +127,22 @@ enabling debugging options may affect system performance. Toggle behaviour to prefer Throughput or Latency. +Runtime Options +~~~~~~~~~~~~~~~ + +The following ``devargs`` options can be enabled at runtime. They must +be passed as part of EAL arguments. For example, + +.. code-block:: console + + testpmd -w 02:00.4,keep_ovlan=1 -- -i + +- ``keep_ovlan`` (default **0**) + + Toggle behaviour to keep/strip outer VLAN in Q-in-Q packets. If + enabled, the outer VLAN tag is preserved in Q-in-Q packets. Otherwise, + the outer VLAN tag is stripped in Q-in-Q packets. + .. _driver-compilation: Driver compilation and testing diff --git a/drivers/net/cxgbe/base/t4_regs.h b/drivers/net/cxgbe/base/t4_regs.h index 28ff21927e..c0d6ddcac3 100644 --- a/drivers/net/cxgbe/base/t4_regs.h +++ b/drivers/net/cxgbe/base/t4_regs.h @@ -571,6 +571,9 @@ #define V_CSUM_HAS_PSEUDO_HDR(x) ((x) << S_CSUM_HAS_PSEUDO_HDR) #define F_CSUM_HAS_PSEUDO_HDR V_CSUM_HAS_PSEUDO_HDR(1U) +#define S_RM_OVLAN 9 +#define V_RM_OVLAN(x) ((x) << S_RM_OVLAN) + /* registers for module MPS */ #define MPS_BASE_ADDR 0x9000 #define T4VF_MPS_BASE_ADDR 0x0100 @@ -789,6 +792,57 @@ #define A_MPS_VF_STAT_RX_VF_UCAST_FRAMES_L 0xf0 #define A_MPS_VF_STAT_RX_VF_ERR_FRAMES_L 0xf8 +#define A_MPS_PORT0_RX_IVLAN 0x3011c + +#define S_IVLAN_ETYPE 0 +#define M_IVLAN_ETYPE 0xffffU +#define V_IVLAN_ETYPE(x) ((x) << S_IVLAN_ETYPE) + +#define MPS_PORT_RX_IVLAN_STRIDE 0x4000 +#define MPS_PORT_RX_IVLAN(idx) \ + (A_MPS_PORT0_RX_IVLAN + (idx) * MPS_PORT_RX_IVLAN_STRIDE) + +#define A_MPS_PORT0_RX_OVLAN0 0x30120 + +#define S_OVLAN_MASK 16 +#define M_OVLAN_MASK 0xffffU +#define V_OVLAN_MASK(x) ((x) << S_OVLAN_MASK) + +#define S_OVLAN_ETYPE 0 +#define M_OVLAN_ETYPE 0xffffU +#define V_OVLAN_ETYPE(x) ((x) << S_OVLAN_ETYPE) + +#define MPS_PORT_RX_OVLAN_STRIDE 0x4000 +#define MPS_PORT_RX_OVLAN_BASE(idx) \ +(A_MPS_PORT0_RX_OVLAN0 + (idx) * MPS_PORT_RX_OVLAN_STRIDE) +#define MPS_PORT_RX_OVLAN_REG(idx, reg) (MPS_PORT_RX_OVLAN_BASE(idx) + (reg)) + +#define A_RX_OVLAN0 0x0 +#define A_RX_OVLAN1 0x4 +#define A_RX_OVLAN2 0x8 + +#define A_MPS_PORT0_RX_CTL 0x30100 + +#define S_OVLAN_EN0 0 +#define V_OVLAN_EN0(x) ((x) << S_OVLAN_EN0) +#define F_OVLAN_EN0 V_OVLAN_EN0(1) + +#define S_OVLAN_EN1 1 +#define V_OVLAN_EN1(x) ((x) << S_OVLAN_EN1) +#define F_OVLAN_EN1 V_OVLAN_EN1(1) + +#define S_OVLAN_EN2 2 +#define V_OVLAN_EN2(x) ((x) << S_OVLAN_EN2) +#define F_OVLAN_EN2 V_OVLAN_EN2(1) + +#define S_IVLAN_EN 4 +#define V_IVLAN_EN(x) ((x) << S_IVLAN_EN) +#define F_IVLAN_EN V_IVLAN_EN(1) + +#define MPS_PORT_RX_CTL_STRIDE 0x4000 +#define MPS_PORT_RX_CTL(idx) \ + (A_MPS_PORT0_RX_CTL + (idx) * MPS_PORT_RX_CTL_STRIDE) + /* registers for module ULP_RX */ #define ULP_RX_BASE_ADDR 0x19150 diff --git a/drivers/net/cxgbe/cxgbe_main.c b/drivers/net/cxgbe/cxgbe_main.c index 01a80ace86..c786a1a363 100644 --- a/drivers/net/cxgbe/cxgbe_main.c +++ b/drivers/net/cxgbe/cxgbe_main.c @@ -32,12 +32,15 @@ #include #include #include +#include #include "common.h" #include "t4_regs.h" #include "t4_msg.h" #include "cxgbe.h" +#define CXGBE_DEVARG_KEEP_OVLAN "keep_ovlan" + /* * Response queue handler for the FW event queue. */ @@ -392,6 +395,84 @@ void print_port_info(struct adapter *adap) } } +static int +check_devargs_handler(__rte_unused const char *key, const char *value, + __rte_unused void *opaque) +{ + if (strcmp(value, "1")) + return -1; + + return 0; +} + +static int cxgbe_get_devargs(struct rte_devargs *devargs, const char *key) +{ + struct rte_kvargs *kvlist; + + if (!devargs) + return 0; + + kvlist = rte_kvargs_parse(devargs->args, NULL); + if (!kvlist) + return 0; + + if (!rte_kvargs_count(kvlist, key)) { + rte_kvargs_free(kvlist); + return 0; + } + + if (rte_kvargs_process(kvlist, key, + check_devargs_handler, NULL) < 0) { + rte_kvargs_free(kvlist); + return 0; + } + rte_kvargs_free(kvlist); + + return 1; +} + +static void configure_vlan_types(struct adapter *adapter) +{ + struct rte_pci_device *pdev = adapter->pdev; + int i; + + for_each_port(adapter, i) { + /* OVLAN Type 0x88a8 */ + t4_set_reg_field(adapter, MPS_PORT_RX_OVLAN_REG(i, A_RX_OVLAN0), + V_OVLAN_MASK(M_OVLAN_MASK) | + V_OVLAN_ETYPE(M_OVLAN_ETYPE), + V_OVLAN_MASK(M_OVLAN_MASK) | + V_OVLAN_ETYPE(0x88a8)); + /* OVLAN Type 0x9100 */ + t4_set_reg_field(adapter, MPS_PORT_RX_OVLAN_REG(i, A_RX_OVLAN1), + V_OVLAN_MASK(M_OVLAN_MASK) | + V_OVLAN_ETYPE(M_OVLAN_ETYPE), + V_OVLAN_MASK(M_OVLAN_MASK) | + V_OVLAN_ETYPE(0x9100)); + /* OVLAN Type 0x8100 */ + t4_set_reg_field(adapter, MPS_PORT_RX_OVLAN_REG(i, A_RX_OVLAN2), + V_OVLAN_MASK(M_OVLAN_MASK) | + V_OVLAN_ETYPE(M_OVLAN_ETYPE), + V_OVLAN_MASK(M_OVLAN_MASK) | + V_OVLAN_ETYPE(0x8100)); + + /* IVLAN 0X8100 */ + t4_set_reg_field(adapter, MPS_PORT_RX_IVLAN(i), + V_IVLAN_ETYPE(M_IVLAN_ETYPE), + V_IVLAN_ETYPE(0x8100)); + + t4_set_reg_field(adapter, MPS_PORT_RX_CTL(i), + F_OVLAN_EN0 | F_OVLAN_EN1 | + F_OVLAN_EN2 | F_IVLAN_EN, + F_OVLAN_EN0 | F_OVLAN_EN1 | + F_OVLAN_EN2 | F_IVLAN_EN); + } + + if (cxgbe_get_devargs(pdev->device.devargs, CXGBE_DEVARG_KEEP_OVLAN)) + t4_tp_wr_bits_indirect(adapter, A_TP_INGRESS_CONFIG, + V_RM_OVLAN(1), V_RM_OVLAN(0)); +} + static void configure_pcie_ext_tag(struct adapter *adapter) { u16 v; @@ -808,6 +889,7 @@ static int adap_init0(struct adapter *adap) t4_init_sge_params(adap); t4_init_tp_params(adap); configure_pcie_ext_tag(adap); + configure_vlan_types(adap); adap->params.drv_memwin = MEMWIN_NIC; adap->flags |= FW_OK; diff --git a/drivers/net/cxgbe/sge.c b/drivers/net/cxgbe/sge.c index 85846fcf4f..a274151316 100644 --- a/drivers/net/cxgbe/sge.c +++ b/drivers/net/cxgbe/sge.c @@ -1597,7 +1597,8 @@ static int process_responses(struct sge_rspq *q, int budget, } if (cpl->vlan_ex) { - pkt->ol_flags |= PKT_RX_VLAN; + pkt->ol_flags |= PKT_RX_VLAN | + PKT_RX_VLAN_STRIPPED; pkt->vlan_tci = ntohs(cpl->vlan); }