diff options
| -rw-r--r-- | drivers/net/ethernet/cisco/enic/Makefile | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/cisco/enic/enic_clsf.c | 66 | ||||
| -rw-r--r-- | drivers/net/ethernet/cisco/enic/enic_clsf.h | 10 | ||||
| -rw-r--r-- | drivers/net/ethernet/cisco/enic/vnic_dev.c | 61 | ||||
| -rw-r--r-- | drivers/net/ethernet/cisco/enic/vnic_dev.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/cisco/enic/vnic_devcmd.h | 5 |
6 files changed, 145 insertions, 1 deletions
diff --git a/drivers/net/ethernet/cisco/enic/Makefile b/drivers/net/ethernet/cisco/enic/Makefile index 239e1e46545d..aadcaf7876ce 100644 --- a/drivers/net/ethernet/cisco/enic/Makefile +++ b/drivers/net/ethernet/cisco/enic/Makefile @@ -2,5 +2,5 @@ obj-$(CONFIG_ENIC) := enic.o enic-y := enic_main.o vnic_cq.o vnic_intr.o vnic_wq.o \ enic_res.o enic_dev.o enic_pp.o vnic_dev.o vnic_rq.o vnic_vic.o \ - enic_ethtool.o enic_api.o + enic_ethtool.o enic_api.o enic_clsf.o diff --git a/drivers/net/ethernet/cisco/enic/enic_clsf.c b/drivers/net/ethernet/cisco/enic/enic_clsf.c new file mode 100644 index 000000000000..f6703c4f76a9 --- /dev/null +++ b/drivers/net/ethernet/cisco/enic/enic_clsf.c @@ -0,0 +1,66 @@ +#include <linux/if.h> +#include <linux/if_ether.h> +#include <linux/if_link.h> +#include <linux/netdevice.h> +#include <linux/in.h> +#include <linux/types.h> +#include <linux/skbuff.h> +#include <net/flow_keys.h> +#include "enic_res.h" +#include "enic_clsf.h" + +/* enic_addfltr_5t - Add ipv4 5tuple filter + * @enic: enic struct of vnic + * @keys: flow_keys of ipv4 5tuple + * @rq: rq number to steer to + * + * This function returns filter_id(hardware_id) of the filter + * added. In case of error it returns an negative number. + */ +int enic_addfltr_5t(struct enic *enic, struct flow_keys *keys, u16 rq) +{ + int res; + struct filter data; + + switch (keys->ip_proto) { + case IPPROTO_TCP: + data.u.ipv4.protocol = PROTO_TCP; + break; + case IPPROTO_UDP: + data.u.ipv4.protocol = PROTO_UDP; + break; + default: + return -EPROTONOSUPPORT; + }; + data.type = FILTER_IPV4_5TUPLE; + data.u.ipv4.src_addr = ntohl(keys->src); + data.u.ipv4.dst_addr = ntohl(keys->dst); + data.u.ipv4.src_port = ntohs(keys->port16[0]); + data.u.ipv4.dst_port = ntohs(keys->port16[1]); + data.u.ipv4.flags = FILTER_FIELDS_IPV4_5TUPLE; + + spin_lock_bh(&enic->devcmd_lock); + res = vnic_dev_classifier(enic->vdev, CLSF_ADD, &rq, &data); + spin_unlock_bh(&enic->devcmd_lock); + res = (res == 0) ? rq : res; + + return res; +} + +/* enic_delfltr - Delete clsf filter + * @enic: enic struct of vnic + * @filter_id: filter_is(hardware_id) of filter to be deleted + * + * This function returns zero in case of success, negative number incase of + * error. + */ +int enic_delfltr(struct enic *enic, u16 filter_id) +{ + int ret; + + spin_lock_bh(&enic->devcmd_lock); + ret = vnic_dev_classifier(enic->vdev, CLSF_DEL, &filter_id, NULL); + spin_unlock_bh(&enic->devcmd_lock); + + return ret; +} diff --git a/drivers/net/ethernet/cisco/enic/enic_clsf.h b/drivers/net/ethernet/cisco/enic/enic_clsf.h new file mode 100644 index 000000000000..b6925b368b77 --- /dev/null +++ b/drivers/net/ethernet/cisco/enic/enic_clsf.h @@ -0,0 +1,10 @@ +#ifndef _ENIC_CLSF_H_ +#define _ENIC_CLSF_H_ + +#include "vnic_dev.h" +#include "enic.h" + +int enic_addfltr_5t(struct enic *enic, struct flow_keys *keys, u16 rq); +int enic_delfltr(struct enic *enic, u16 filter_id); + +#endif /* _ENIC_CLSF_H_ */ diff --git a/drivers/net/ethernet/cisco/enic/vnic_dev.c b/drivers/net/ethernet/cisco/enic/vnic_dev.c index 263081b8e636..5abc496bcf29 100644 --- a/drivers/net/ethernet/cisco/enic/vnic_dev.c +++ b/drivers/net/ethernet/cisco/enic/vnic_dev.c @@ -1048,3 +1048,64 @@ int vnic_dev_set_mac_addr(struct vnic_dev *vdev, u8 *mac_addr) return vnic_dev_cmd(vdev, CMD_SET_MAC_ADDR, &a0, &a1, wait); } + +/* vnic_dev_classifier: Add/Delete classifier entries + * @vdev: vdev of the device + * @cmd: CLSF_ADD for Add filter + * CLSF_DEL for Delete filter + * @entry: In case of ADD filter, the caller passes the RQ number in this + * variable. + * + * This function stores the filter_id returned by the firmware in the + * same variable before return; + * + * In case of DEL filter, the caller passes the RQ number. Return + * value is irrelevant. + * @data: filter data + */ +int vnic_dev_classifier(struct vnic_dev *vdev, u8 cmd, u16 *entry, + struct filter *data) +{ + u64 a0, a1; + int wait = 1000; + dma_addr_t tlv_pa; + int ret = -EINVAL; + struct filter_tlv *tlv, *tlv_va; + struct filter_action *action; + u64 tlv_size; + + if (cmd == CLSF_ADD) { + tlv_size = sizeof(struct filter) + + sizeof(struct filter_action) + + 2 * sizeof(struct filter_tlv); + tlv_va = pci_alloc_consistent(vdev->pdev, tlv_size, &tlv_pa); + if (!tlv_va) + return -ENOMEM; + tlv = tlv_va; + a0 = tlv_pa; + a1 = tlv_size; + memset(tlv, 0, tlv_size); + tlv->type = CLSF_TLV_FILTER; + tlv->length = sizeof(struct filter); + *(struct filter *)&tlv->val = *data; + + tlv = (struct filter_tlv *)((char *)tlv + + sizeof(struct filter_tlv) + + sizeof(struct filter)); + + tlv->type = CLSF_TLV_ACTION; + tlv->length = sizeof(struct filter_action); + action = (struct filter_action *)&tlv->val; + action->type = FILTER_ACTION_RQ_STEERING; + action->u.rq_idx = *entry; + + ret = vnic_dev_cmd(vdev, CMD_ADD_FILTER, &a0, &a1, wait); + *entry = (u16)a0; + pci_free_consistent(vdev->pdev, tlv_size, tlv_va, tlv_pa); + } else if (cmd == CLSF_DEL) { + a0 = *entry; + ret = vnic_dev_cmd(vdev, CMD_DEL_FILTER, &a0, &a1, wait); + } + + return ret; +} diff --git a/drivers/net/ethernet/cisco/enic/vnic_dev.h b/drivers/net/ethernet/cisco/enic/vnic_dev.h index 1f3b301f8225..1fb214efceba 100644 --- a/drivers/net/ethernet/cisco/enic/vnic_dev.h +++ b/drivers/net/ethernet/cisco/enic/vnic_dev.h @@ -133,5 +133,7 @@ int vnic_dev_enable2(struct vnic_dev *vdev, int active); int vnic_dev_enable2_done(struct vnic_dev *vdev, int *status); int vnic_dev_deinit_done(struct vnic_dev *vdev, int *status); int vnic_dev_set_mac_addr(struct vnic_dev *vdev, u8 *mac_addr); +int vnic_dev_classifier(struct vnic_dev *vdev, u8 cmd, u16 *entry, + struct filter *data); #endif /* _VNIC_DEV_H_ */ diff --git a/drivers/net/ethernet/cisco/enic/vnic_devcmd.h b/drivers/net/ethernet/cisco/enic/vnic_devcmd.h index b9a0d78fd639..435d0cd96c22 100644 --- a/drivers/net/ethernet/cisco/enic/vnic_devcmd.h +++ b/drivers/net/ethernet/cisco/enic/vnic_devcmd.h @@ -603,6 +603,11 @@ struct filter_tlv { u_int32_t val[0]; }; +enum { + CLSF_ADD = 0, + CLSF_DEL = 1, +}; + /* * Writing cmd register causes STAT_BUSY to get set in status register. * When cmd completes, STAT_BUSY will be cleared. |