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net: hns3: Refine the MSIX allocation for PF 

The offset of msix number for roce is different between different
revision id. We should get it from firmware, instead of a fix value.
This patch refines the msix allocation, make it compatible.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jian Shen 2018-08-03 10:56:31 +01:00 committed by David S. Miller
parent 07acf909ee
commit 375dd5e432
3 changed files with 9 additions and 4 deletions
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2
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
View File

@ -358,6 +358,8 @@ struct hclge_pf_res_cmd {
__le16 buf_size;
__le16 msixcap_localid_ba_nic;
__le16 msixcap_localid_ba_rocee;
#define HCLGE_MSIX_OFT_ROCEE_S 0
#define HCLGE_MSIX_OFT_ROCEE_M GENMASK(15, 0)
#define HCLGE_PF_VEC_NUM_S 0
#define HCLGE_PF_VEC_NUM_M GENMASK(7, 0)
__le16 pf_intr_vector_number;

8
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
View File

@ -932,6 +932,9 @@ static int hclge_query_pf_resource(struct hclge_dev *hdev)
hdev->pkt_buf_size = __le16_to_cpu(req->buf_size) << HCLGE_BUF_UNIT_S;
if (hnae3_dev_roce_supported(hdev)) {
hdev->roce_base_msix_offset =
hnae3_get_field(__le16_to_cpu(req->msixcap_localid_ba_rocee),
HCLGE_MSIX_OFT_ROCEE_M, HCLGE_MSIX_OFT_ROCEE_S);
hdev->num_roce_msi =
hnae3_get_field(__le16_to_cpu(req->pf_intr_vector_number),
HCLGE_PF_VEC_NUM_M, HCLGE_PF_VEC_NUM_S);
@ -939,7 +942,8 @@ static int hclge_query_pf_resource(struct hclge_dev *hdev)
/* PF should have NIC vectors and Roce vectors,
* NIC vectors are queued before Roce vectors.
*/
hdev->num_msi = hdev->num_roce_msi + HCLGE_ROCE_VECTOR_OFFSET;
hdev->num_msi = hdev->num_roce_msi +
hdev->roce_base_msix_offset;
} else {
hdev->num_msi =
hnae3_get_field(__le16_to_cpu(req->pf_intr_vector_number),
@ -2037,7 +2041,7 @@ static int hclge_init_msi(struct hclge_dev *hdev)
hdev->num_msi_left = vectors;
hdev->base_msi_vector = pdev->irq;
hdev->roce_base_vector = hdev->base_msi_vector +
HCLGE_ROCE_VECTOR_OFFSET;
hdev->roce_base_msix_offset;
hdev->vector_status = devm_kcalloc(&pdev->dev, hdev->num_msi,
sizeof(u16), GFP_KERNEL);

3
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
View File

@ -16,8 +16,6 @@
#define HCLGE_INVALID_VPORT 0xffff
#define HCLGE_ROCE_VECTOR_OFFSET 96
#define HCLGE_PF_CFG_BLOCK_SIZE 32
#define HCLGE_PF_CFG_DESC_NUM \
(HCLGE_PF_CFG_BLOCK_SIZE / HCLGE_CFG_RD_LEN_BYTES)
@ -509,6 +507,7 @@ struct hclge_dev {
u16 num_msi;
u16 num_msi_left;
u16 num_msi_used;
u16 roce_base_msix_offset;
u32 base_msi_vector;
u16 *vector_status;
int *vector_irq;