diff options
author | Salil Mehta <salil.mehta@huawei.com> | 2017-12-14 21:03:08 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2017-12-15 18:55:35 +0300 |
commit | 84e095d64ed974bd46351650fc8188d372b89fde (patch) | |
tree | 17b41ef531bd0b2a4cf281e01f9c5b996821038e /drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c | |
parent | dde1a86e93cadf9b17ec0a95a78c99505c48fd83 (diff) | |
download | linux-84e095d64ed974bd46351650fc8188d372b89fde.tar.xz |
net: hns3: Change PF to add ring-vect binding & resetQ to mailbox
This patch is required to support ring-vector binding and reset
of TQPs requested by the VF driver to the PF driver. Mailbox
handler is added with corresponding VF commands/messages to
handle the request.
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: lipeng <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c')
-rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c index 24b1f14133b4..96f453ff84b5 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c @@ -79,6 +79,91 @@ static int hclge_send_mbx_msg(struct hclge_vport *vport, u8 *msg, u16 msg_len, return status; } +static void hclge_free_vector_ring_chain(struct hnae3_ring_chain_node *head) +{ + struct hnae3_ring_chain_node *chain_tmp, *chain; + + chain = head->next; + + while (chain) { + chain_tmp = chain->next; + kzfree(chain); + chain = chain_tmp; + } +} + +/* hclge_get_ring_chain_from_mbx: get ring type & tqpid from mailbox message + * msg[0]: opcode + * msg[1]: <not relevant to this function> + * msg[2]: ring_num + * msg[3]: first ring type (TX|RX) + * msg[4]: first tqp id + * msg[5] ~ msg[14]: other ring type and tqp id + */ +static int hclge_get_ring_chain_from_mbx( + struct hclge_mbx_vf_to_pf_cmd *req, + struct hnae3_ring_chain_node *ring_chain, + struct hclge_vport *vport) +{ +#define HCLGE_RING_NODE_VARIABLE_NUM 3 +#define HCLGE_RING_MAP_MBX_BASIC_MSG_NUM 3 + struct hnae3_ring_chain_node *cur_chain, *new_chain; + int ring_num; + int i; + + ring_num = req->msg[2]; + + hnae_set_bit(ring_chain->flag, HNAE3_RING_TYPE_B, req->msg[3]); + ring_chain->tqp_index = + hclge_get_queue_id(vport->nic.kinfo.tqp[req->msg[4]]); + + cur_chain = ring_chain; + + for (i = 1; i < ring_num; i++) { + new_chain = kzalloc(sizeof(*new_chain), GFP_KERNEL); + if (!new_chain) + goto err; + + hnae_set_bit(new_chain->flag, HNAE3_RING_TYPE_B, + req->msg[HCLGE_RING_NODE_VARIABLE_NUM * i + + HCLGE_RING_MAP_MBX_BASIC_MSG_NUM]); + + new_chain->tqp_index = + hclge_get_queue_id(vport->nic.kinfo.tqp + [req->msg[HCLGE_RING_NODE_VARIABLE_NUM * i + + HCLGE_RING_MAP_MBX_BASIC_MSG_NUM + 1]]); + + cur_chain->next = new_chain; + cur_chain = new_chain; + } + + return 0; +err: + hclge_free_vector_ring_chain(ring_chain); + return -ENOMEM; +} + +static int hclge_map_unmap_ring_to_vf_vector(struct hclge_vport *vport, bool en, + struct hclge_mbx_vf_to_pf_cmd *req) +{ + struct hnae3_ring_chain_node ring_chain; + int vector_id = req->msg[1]; + int ret; + + memset(&ring_chain, 0, sizeof(ring_chain)); + ret = hclge_get_ring_chain_from_mbx(req, &ring_chain, vport); + if (ret) + return ret; + + ret = hclge_bind_ring_with_vector(vport, vector_id, en, &ring_chain); + if (ret) + return ret; + + hclge_free_vector_ring_chain(&ring_chain); + + return 0; +} + static int hclge_set_vf_promisc_mode(struct hclge_vport *vport, struct hclge_mbx_vf_to_pf_cmd *req) { @@ -224,6 +309,16 @@ static int hclge_get_link_info(struct hclge_vport *vport, HCLGE_MBX_LINK_STAT_CHANGE, dest_vfid); } +static void hclge_reset_vf_queue(struct hclge_vport *vport, + struct hclge_mbx_vf_to_pf_cmd *mbx_req) +{ + u16 queue_id; + + memcpy(&queue_id, &mbx_req->msg[2], sizeof(queue_id)); + + hclge_reset_tqp(&vport->nic, queue_id); +} + void hclge_mbx_handler(struct hclge_dev *hdev) { struct hclge_cmq_ring *crq = &hdev->hw.cmq.crq; @@ -241,6 +336,14 @@ void hclge_mbx_handler(struct hclge_dev *hdev) vport = &hdev->vport[req->mbx_src_vfid]; switch (req->msg[0]) { + case HCLGE_MBX_MAP_RING_TO_VECTOR: + ret = hclge_map_unmap_ring_to_vf_vector(vport, true, + req); + break; + case HCLGE_MBX_UNMAP_RING_TO_VECTOR: + ret = hclge_map_unmap_ring_to_vf_vector(vport, false, + req); + break; case HCLGE_MBX_SET_PROMISC_MODE: ret = hclge_set_vf_promisc_mode(vport, req); if (ret) @@ -290,6 +393,9 @@ void hclge_mbx_handler(struct hclge_dev *hdev) "PF fail(%d) to get link stat for VF\n", ret); break; + case HCLGE_MBX_QUEUE_RESET: + hclge_reset_vf_queue(vport, req); + break; default: dev_err(&hdev->pdev->dev, "un-supported mailbox message, code = %d\n", |