[PATCH 0/3] crypto: hisilicon - refactor vfs_num related codes

[PATCH 0/3] crypto: hisilicon - refactor vfs_num related codes

[Shukun Tan]

This series clean the vfs_num related redundant code in this series,
move all into QM.

Hao Fang (1):
  crypto: hisilicon - add vfs_num module parameter for hpre/sec

Shukun Tan (2):
  crypto: hisilicon - put vfs_num into struct hisi_qm
  crypto: hisilicon - unify SR-IOV related codes into QM

 drivers/crypto/hisilicon/hpre/hpre.h      |   1 -
 drivers/crypto/hisilicon/hpre/hpre_main.c | 130 +++++-----------------------
 drivers/crypto/hisilicon/qm.c             | 136 +++++++++++++++++++++++++++--
 drivers/crypto/hisilicon/qm.h             |  25 +++++-
 drivers/crypto/hisilicon/sec2/sec.h       |   1 -
 drivers/crypto/hisilicon/sec2/sec_main.c  | 137 ++++++------------------------
 drivers/crypto/hisilicon/zip/zip_main.c   | 131 ++++------------------------
 7 files changed, 215 insertions(+), 346 deletions(-)

-- 
2.7.4

[PATCH 1/3] crypto: hisilicon - put vfs_num into struct hisi_qm

[Shukun Tan]

We plan to move vfs_num related code into qm.c, put the param
vfs_num into struct hisi_qm first.

Signed-off-by: Shukun Tan <tanshukun1@huawei.com>
Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
Reviewed-by: Zaibo Xu <xuzaibo@huawei.com>
---
 drivers/crypto/hisilicon/hpre/hpre.h      |  1 -
 drivers/crypto/hisilicon/hpre/hpre_main.c | 12 +++++-------
 drivers/crypto/hisilicon/qm.h             |  1 +
 drivers/crypto/hisilicon/sec2/sec.h       |  1 -
 drivers/crypto/hisilicon/sec2/sec_main.c  | 17 ++++++++---------
 drivers/crypto/hisilicon/zip/zip_main.c   | 19 ++++++++-----------
 6 files changed, 22 insertions(+), 29 deletions(-)

diff --git a/drivers/crypto/hisilicon/hpre/hpre.h b/drivers/crypto/hisilicon/hpre/hpre.h
index 03d512e..0a8ba46 100644
--- a/drivers/crypto/hisilicon/hpre/hpre.h
+++ b/drivers/crypto/hisilicon/hpre/hpre.h
@@ -47,7 +47,6 @@ struct hpre_debug {
 struct hpre {
 	struct hisi_qm qm;
 	struct hpre_debug debug;
-	u32 num_vfs;
 	unsigned long status;
 };
 
diff --git a/drivers/crypto/hisilicon/hpre/hpre_main.c b/drivers/crypto/hisilicon/hpre/hpre_main.c
index 88be53b..5269e5b 100644
--- a/drivers/crypto/hisilicon/hpre/hpre_main.c
+++ b/drivers/crypto/hisilicon/hpre/hpre_main.c
@@ -354,9 +354,7 @@ static u32 hpre_current_qm_read(struct hpre_debugfs_file *file)
 static int hpre_current_qm_write(struct hpre_debugfs_file *file, u32 val)
 {
 	struct hisi_qm *qm = hpre_file_to_qm(file);
-	struct hpre_debug *debug = file->debug;
-	struct hpre *hpre = container_of(debug, struct hpre, debug);
-	u32 num_vfs = hpre->num_vfs;
+	u32 num_vfs = qm->vfs_num;
 	u32 vfq_num, tmp;
 
 
@@ -827,7 +825,7 @@ static int hpre_vf_q_assign(struct hpre *hpre, int num_vfs)
 static int hpre_clear_vft_config(struct hpre *hpre)
 {
 	struct hisi_qm *qm = &hpre->qm;
-	u32 num_vfs = hpre->num_vfs;
+	u32 num_vfs = qm->vfs_num;
 	int ret;
 	u32 i;
 
@@ -836,7 +834,7 @@ static int hpre_clear_vft_config(struct hpre *hpre)
 		if (ret)
 			return ret;
 	}
-	hpre->num_vfs = 0;
+	qm->vfs_num = 0;
 
 	return 0;
 }
@@ -860,7 +858,7 @@ static int hpre_sriov_enable(struct pci_dev *pdev, int max_vfs)
 		return ret;
 	}
 
-	hpre->num_vfs = num_vfs;
+	hpre->qm.vfs_num = num_vfs;
 
 	ret = pci_enable_sriov(pdev, num_vfs);
 	if (ret) {
@@ -903,7 +901,7 @@ static void hpre_remove(struct pci_dev *pdev)
 
 	hpre_algs_unregister();
 	hisi_qm_del_from_list(qm, &hpre_devices);
-	if (qm->fun_type == QM_HW_PF && hpre->num_vfs != 0) {
+	if (qm->fun_type == QM_HW_PF && qm->vfs_num) {
 		ret = hpre_sriov_disable(pdev);
 		if (ret) {
 			pci_err(pdev, "Disable SRIOV fail!\n");
diff --git a/drivers/crypto/hisilicon/qm.h b/drivers/crypto/hisilicon/qm.h
index ec5b6f4..33c5a8e 100644
--- a/drivers/crypto/hisilicon/qm.h
+++ b/drivers/crypto/hisilicon/qm.h
@@ -161,6 +161,7 @@ struct hisi_qm {
 	u32 qp_num;
 	u32 qp_in_used;
 	u32 ctrl_qp_num;
+	u32 vfs_num;
 	struct list_head list;
 
 	struct qm_dma qdma;
diff --git a/drivers/crypto/hisilicon/sec2/sec.h b/drivers/crypto/hisilicon/sec2/sec.h
index 3598fa1..2326634 100644
--- a/drivers/crypto/hisilicon/sec2/sec.h
+++ b/drivers/crypto/hisilicon/sec2/sec.h
@@ -172,7 +172,6 @@ struct sec_dev {
 	struct sec_debug debug;
 	u32 ctx_q_num;
 	bool iommu_used;
-	u32 num_vfs;
 	unsigned long status;
 };
 
diff --git a/drivers/crypto/hisilicon/sec2/sec_main.c b/drivers/crypto/hisilicon/sec2/sec_main.c
index 1f54ebe..ef26239 100644
--- a/drivers/crypto/hisilicon/sec2/sec_main.c
+++ b/drivers/crypto/hisilicon/sec2/sec_main.c
@@ -424,23 +424,22 @@ static u32 sec_current_qm_read(struct sec_debug_file *file)
 static int sec_current_qm_write(struct sec_debug_file *file, u32 val)
 {
 	struct hisi_qm *qm = file->qm;
-	struct sec_dev *sec = container_of(qm, struct sec_dev, qm);
 	u32 vfq_num;
 	u32 tmp;
 
-	if (val > sec->num_vfs)
+	if (val > qm->vfs_num)
 		return -EINVAL;
 
 	/* According PF or VF Dev ID to calculation curr_qm_qp_num and store */
 	if (!val) {
 		qm->debug.curr_qm_qp_num = qm->qp_num;
 	} else {
-		vfq_num = (qm->ctrl_qp_num - qm->qp_num) / sec->num_vfs;
+		vfq_num = (qm->ctrl_qp_num - qm->qp_num) / qm->vfs_num;
 
-		if (val == sec->num_vfs)
+		if (val == qm->vfs_num)
 			qm->debug.curr_qm_qp_num =
 				qm->ctrl_qp_num - qm->qp_num -
-				(sec->num_vfs - 1) * vfq_num;
+				(qm->vfs_num - 1) * vfq_num;
 		else
 			qm->debug.curr_qm_qp_num = vfq_num;
 	}
@@ -926,7 +925,7 @@ static int sec_vf_q_assign(struct sec_dev *sec, u32 num_vfs)
 static int sec_clear_vft_config(struct sec_dev *sec)
 {
 	struct hisi_qm *qm = &sec->qm;
-	u32 num_vfs = sec->num_vfs;
+	u32 num_vfs = qm->vfs_num;
 	int ret;
 	u32 i;
 
@@ -936,7 +935,7 @@ static int sec_clear_vft_config(struct sec_dev *sec)
 			return ret;
 	}
 
-	sec->num_vfs = 0;
+	qm->vfs_num = 0;
 
 	return 0;
 }
@@ -962,7 +961,7 @@ static int sec_sriov_enable(struct pci_dev *pdev, int max_vfs)
 		return ret;
 	}
 
-	sec->num_vfs = num_vfs;
+	sec->qm.vfs_num = num_vfs;
 
 	ret = pci_enable_sriov(pdev, num_vfs);
 	if (ret) {
@@ -1006,7 +1005,7 @@ static void sec_remove(struct pci_dev *pdev)
 
 	hisi_qm_del_from_list(qm, &sec_devices);
 
-	if (qm->fun_type == QM_HW_PF && sec->num_vfs)
+	if (qm->fun_type == QM_HW_PF && qm->vfs_num)
 		(void)sec_sriov_disable(pdev);
 
 	sec_debugfs_exit(sec);
diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c
index fcc85d2..f5ffa02 100644
--- a/drivers/crypto/hisilicon/zip/zip_main.c
+++ b/drivers/crypto/hisilicon/zip/zip_main.c
@@ -134,7 +134,6 @@ struct ctrl_debug_file {
  * Just relevant for PF.
  */
 struct hisi_zip_ctrl {
-	u32 num_vfs;
 	struct hisi_zip *hisi_zip;
 	struct dentry *debug_root;
 	struct ctrl_debug_file files[HZIP_DEBUG_FILE_NUM];
@@ -342,21 +341,20 @@ static u32 current_qm_read(struct ctrl_debug_file *file)
 static int current_qm_write(struct ctrl_debug_file *file, u32 val)
 {
 	struct hisi_qm *qm = file_to_qm(file);
-	struct hisi_zip_ctrl *ctrl = file->ctrl;
 	u32 vfq_num;
 	u32 tmp;
 
-	if (val > ctrl->num_vfs)
+	if (val > qm->vfs_num)
 		return -EINVAL;
 
 	/* Calculate curr_qm_qp_num and store */
 	if (val == 0) {
 		qm->debug.curr_qm_qp_num = qm->qp_num;
 	} else {
-		vfq_num = (qm->ctrl_qp_num - qm->qp_num) / ctrl->num_vfs;
-		if (val == ctrl->num_vfs)
+		vfq_num = (qm->ctrl_qp_num - qm->qp_num) / qm->vfs_num;
+		if (val == qm->vfs_num)
 			qm->debug.curr_qm_qp_num = qm->ctrl_qp_num -
-				qm->qp_num - (ctrl->num_vfs - 1) * vfq_num;
+				qm->qp_num - (qm->vfs_num - 1) * vfq_num;
 		else
 			qm->debug.curr_qm_qp_num = vfq_num;
 	}
@@ -686,9 +684,8 @@ static int hisi_zip_vf_q_assign(struct hisi_zip *hisi_zip, int num_vfs)
 
 static int hisi_zip_clear_vft_config(struct hisi_zip *hisi_zip)
 {
-	struct hisi_zip_ctrl *ctrl = hisi_zip->ctrl;
 	struct hisi_qm *qm = &hisi_zip->qm;
-	u32 i, num_vfs = ctrl->num_vfs;
+	u32 i, num_vfs = qm->vfs_num;
 	int ret;
 
 	for (i = 1; i <= num_vfs; i++) {
@@ -697,7 +694,7 @@ static int hisi_zip_clear_vft_config(struct hisi_zip *hisi_zip)
 			return ret;
 	}
 
-	ctrl->num_vfs = 0;
+	qm->vfs_num = 0;
 
 	return 0;
 }
@@ -723,7 +720,7 @@ static int hisi_zip_sriov_enable(struct pci_dev *pdev, int max_vfs)
 		return ret;
 	}
 
-	hisi_zip->ctrl->num_vfs = num_vfs;
+	hisi_zip->qm.vfs_num = num_vfs;
 
 	ret = pci_enable_sriov(pdev, num_vfs);
 	if (ret) {
@@ -852,7 +849,7 @@ static void hisi_zip_remove(struct pci_dev *pdev)
 	struct hisi_zip *hisi_zip = pci_get_drvdata(pdev);
 	struct hisi_qm *qm = &hisi_zip->qm;
 
-	if (qm->fun_type == QM_HW_PF && hisi_zip->ctrl->num_vfs != 0)
+	if (qm->fun_type == QM_HW_PF && qm->vfs_num)
 		hisi_zip_sriov_disable(pdev);
 
 	hisi_zip_debugfs_exit(hisi_zip);
-- 
2.7.4

[PATCH 2/3] crypto: hisilicon - unify SR-IOV related codes into QM

[Shukun Tan]

Clean the duplicate SR-IOV related codes, put all into qm.c.

Signed-off-by: Shukun Tan <tanshukun1@huawei.com>
Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
Reviewed-by: Zaibo Xu <xuzaibo@huawei.com>
---
 drivers/crypto/hisilicon/hpre/hpre_main.c | 105 +----------------------
 drivers/crypto/hisilicon/qm.c             | 136 ++++++++++++++++++++++++++++--
 drivers/crypto/hisilicon/qm.h             |   4 +-
 drivers/crypto/hisilicon/sec2/sec_main.c  | 108 +-----------------------
 drivers/crypto/hisilicon/zip/zip_main.c   | 109 +-----------------------
 5 files changed, 138 insertions(+), 324 deletions(-)

diff --git a/drivers/crypto/hisilicon/hpre/hpre_main.c b/drivers/crypto/hisilicon/hpre/hpre_main.c
index 5269e5b..4e41d30 100644
--- a/drivers/crypto/hisilicon/hpre/hpre_main.c
+++ b/drivers/crypto/hisilicon/hpre/hpre_main.c
@@ -792,107 +792,6 @@ static int hpre_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	return ret;
 }
 
-static int hpre_vf_q_assign(struct hpre *hpre, int num_vfs)
-{
-	struct hisi_qm *qm = &hpre->qm;
-	u32 qp_num = qm->qp_num;
-	int q_num, remain_q_num, i;
-	u32 q_base = qp_num;
-	int ret;
-
-	if (!num_vfs)
-		return -EINVAL;
-
-	remain_q_num = qm->ctrl_qp_num - qp_num;
-
-	/* If remaining queues are not enough, return error. */
-	if (remain_q_num < num_vfs)
-		return -EINVAL;
-
-	q_num = remain_q_num / num_vfs;
-	for (i = 1; i <= num_vfs; i++) {
-		if (i == num_vfs)
-			q_num += remain_q_num % num_vfs;
-		ret = hisi_qm_set_vft(qm, i, q_base, (u32)q_num);
-		if (ret)
-			return ret;
-		q_base += q_num;
-	}
-
-	return 0;
-}
-
-static int hpre_clear_vft_config(struct hpre *hpre)
-{
-	struct hisi_qm *qm = &hpre->qm;
-	u32 num_vfs = qm->vfs_num;
-	int ret;
-	u32 i;
-
-	for (i = 1; i <= num_vfs; i++) {
-		ret = hisi_qm_set_vft(qm, i, 0, 0);
-		if (ret)
-			return ret;
-	}
-	qm->vfs_num = 0;
-
-	return 0;
-}
-
-static int hpre_sriov_enable(struct pci_dev *pdev, int max_vfs)
-{
-	struct hpre *hpre = pci_get_drvdata(pdev);
-	int pre_existing_vfs, num_vfs, ret;
-
-	pre_existing_vfs = pci_num_vf(pdev);
-	if (pre_existing_vfs) {
-		pci_err(pdev,
-			"Can't enable VF. Please disable pre-enabled VFs!\n");
-		return 0;
-	}
-
-	num_vfs = min_t(int, max_vfs, HPRE_VF_NUM);
-	ret = hpre_vf_q_assign(hpre, num_vfs);
-	if (ret) {
-		pci_err(pdev, "Can't assign queues for VF!\n");
-		return ret;
-	}
-
-	hpre->qm.vfs_num = num_vfs;
-
-	ret = pci_enable_sriov(pdev, num_vfs);
-	if (ret) {
-		pci_err(pdev, "Can't enable VF!\n");
-		hpre_clear_vft_config(hpre);
-		return ret;
-	}
-
-	return num_vfs;
-}
-
-static int hpre_sriov_disable(struct pci_dev *pdev)
-{
-	struct hpre *hpre = pci_get_drvdata(pdev);
-
-	if (pci_vfs_assigned(pdev)) {
-		pci_err(pdev, "Failed to disable VFs while VFs are assigned!\n");
-		return -EPERM;
-	}
-
-	/* remove in hpre_pci_driver will be called to free VF resources */
-	pci_disable_sriov(pdev);
-
-	return hpre_clear_vft_config(hpre);
-}
-
-static int hpre_sriov_configure(struct pci_dev *pdev, int num_vfs)
-{
-	if (num_vfs)
-		return hpre_sriov_enable(pdev, num_vfs);
-	else
-		return hpre_sriov_disable(pdev);
-}
-
 static void hpre_remove(struct pci_dev *pdev)
 {
 	struct hpre *hpre = pci_get_drvdata(pdev);
@@ -902,7 +801,7 @@ static void hpre_remove(struct pci_dev *pdev)
 	hpre_algs_unregister();
 	hisi_qm_del_from_list(qm, &hpre_devices);
 	if (qm->fun_type == QM_HW_PF && qm->vfs_num) {
-		ret = hpre_sriov_disable(pdev);
+		ret = hisi_qm_sriov_disable(pdev);
 		if (ret) {
 			pci_err(pdev, "Disable SRIOV fail!\n");
 			return;
@@ -929,7 +828,7 @@ static struct pci_driver hpre_pci_driver = {
 	.id_table		= hpre_dev_ids,
 	.probe			= hpre_probe,
 	.remove			= hpre_remove,
-	.sriov_configure	= hpre_sriov_configure,
+	.sriov_configure	= hisi_qm_sriov_configure,
 	.err_handler		= &hpre_err_handler,
 };
 
diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index f795fb5..7c2dedc 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -1781,12 +1781,6 @@ int hisi_qm_get_vft(struct hisi_qm *qm, u32 *base, u32 *number)
 EXPORT_SYMBOL_GPL(hisi_qm_get_vft);
 
 /**
- * hisi_qm_set_vft() - Set "virtual function table" for a qm.
- * @fun_num: Number of operated function.
- * @qm: The qm in which to set vft, alway in a PF.
- * @base: The base number of queue in vft.
- * @number: The number of queues in vft. 0 means invalid vft.
- *
  * This function is alway called in PF driver, it is used to assign queues
  * among PF and VFs.
  *
@@ -1794,7 +1788,7 @@ EXPORT_SYMBOL_GPL(hisi_qm_get_vft);
  * Assign queues A~B to VF: hisi_qm_set_vft(qm, 2, A, B - A + 1)
  * (VF function number 0x2)
  */
-int hisi_qm_set_vft(struct hisi_qm *qm, u32 fun_num, u32 base,
+static int hisi_qm_set_vft(struct hisi_qm *qm, u32 fun_num, u32 base,
 		    u32 number)
 {
 	u32 max_q_num = qm->ctrl_qp_num;
@@ -1805,7 +1799,6 @@ int hisi_qm_set_vft(struct hisi_qm *qm, u32 fun_num, u32 base,
 
 	return qm_set_sqc_cqc_vft(qm, fun_num, base, number);
 }
-EXPORT_SYMBOL_GPL(hisi_qm_set_vft);
 
 static void qm_init_eq_aeq_status(struct hisi_qm *qm)
 {
@@ -2299,6 +2292,133 @@ int hisi_qm_alloc_qps_node(struct hisi_qm_list *qm_list, int qp_num,
 }
 EXPORT_SYMBOL_GPL(hisi_qm_alloc_qps_node);
 
+static int qm_vf_q_assign(struct hisi_qm *qm, u32 num_vfs)
+{
+	u32 remain_q_num, q_num, i, j;
+	u32 q_base = qm->qp_num;
+	int ret;
+
+	if (!num_vfs)
+		return -EINVAL;
+
+	remain_q_num = qm->ctrl_qp_num - qm->qp_num;
+
+	/* If remain queues not enough, return error. */
+	if (qm->ctrl_qp_num < qm->qp_num || remain_q_num < num_vfs)
+		return -EINVAL;
+
+	q_num = remain_q_num / num_vfs;
+	for (i = 1; i <= num_vfs; i++) {
+		if (i == num_vfs)
+			q_num += remain_q_num % num_vfs;
+		ret = hisi_qm_set_vft(qm, i, q_base, q_num);
+		if (ret) {
+			for (j = i; j > 0; j--)
+				hisi_qm_set_vft(qm, j, 0, 0);
+			return ret;
+		}
+		q_base += q_num;
+	}
+
+	return 0;
+}
+
+static int qm_clear_vft_config(struct hisi_qm *qm)
+{
+	int ret;
+	u32 i;
+
+	for (i = 1; i <= qm->vfs_num; i++) {
+		ret = hisi_qm_set_vft(qm, i, 0, 0);
+		if (ret)
+			return ret;
+	}
+	qm->vfs_num = 0;
+
+	return 0;
+}
+
+/**
+ * hisi_qm_sriov_enable() - enable virtual functions
+ * @pdev: the PCIe device
+ * @max_vfs: the number of virtual functions to enable
+ *
+ * Returns the number of enabled VFs. If there are VFs enabled already or
+ * max_vfs is more than the total number of device can be enabled, returns
+ * failure.
+ */
+int hisi_qm_sriov_enable(struct pci_dev *pdev, int max_vfs)
+{
+	struct hisi_qm *qm = pci_get_drvdata(pdev);
+	int pre_existing_vfs, num_vfs, total_vfs, ret;
+
+	total_vfs = pci_sriov_get_totalvfs(pdev);
+	pre_existing_vfs = pci_num_vf(pdev);
+	if (pre_existing_vfs) {
+		pci_err(pdev, "%d VFs already enabled. Please disable pre-enabled VFs!\n",
+			pre_existing_vfs);
+		return 0;
+	}
+
+	num_vfs = min_t(int, max_vfs, total_vfs);
+	ret = qm_vf_q_assign(qm, num_vfs);
+	if (ret) {
+		pci_err(pdev, "Can't assign queues for VF!\n");
+		return ret;
+	}
+
+	qm->vfs_num = num_vfs;
+
+	ret = pci_enable_sriov(pdev, num_vfs);
+	if (ret) {
+		pci_err(pdev, "Can't enable VF!\n");
+		qm_clear_vft_config(qm);
+		return ret;
+	}
+
+	pci_info(pdev, "VF enabled, vfs_num(=%d)!\n", num_vfs);
+
+	return num_vfs;
+}
+EXPORT_SYMBOL_GPL(hisi_qm_sriov_enable);
+
+/**
+ * hisi_qm_sriov_disable - disable virtual functions
+ * @pdev: the PCI device
+ *
+ * Return failure if there are VFs assigned already.
+ */
+int hisi_qm_sriov_disable(struct pci_dev *pdev)
+{
+	struct hisi_qm *qm = pci_get_drvdata(pdev);
+
+	if (pci_vfs_assigned(pdev)) {
+		pci_err(pdev, "Failed to disable VFs as VFs are assigned!\n");
+		return -EPERM;
+	}
+
+	/* remove in hpre_pci_driver will be called to free VF resources */
+	pci_disable_sriov(pdev);
+	return qm_clear_vft_config(qm);
+}
+EXPORT_SYMBOL_GPL(hisi_qm_sriov_disable);
+
+/**
+ * hisi_qm_sriov_configure - configure the number of VFs
+ * @pdev: The PCI device
+ * @num_vfs: The number of VFs need enabled
+ *
+ * Enable SR-IOV according to num_vfs, 0 means disable.
+ */
+int hisi_qm_sriov_configure(struct pci_dev *pdev, int num_vfs)
+{
+	if (num_vfs == 0)
+		return hisi_qm_sriov_disable(pdev);
+	else
+		return hisi_qm_sriov_enable(pdev, num_vfs);
+}
+EXPORT_SYMBOL_GPL(hisi_qm_sriov_configure);
+
 static pci_ers_result_t qm_dev_err_handle(struct hisi_qm *qm)
 {
 	u32 err_sts;
diff --git a/drivers/crypto/hisilicon/qm.h b/drivers/crypto/hisilicon/qm.h
index 33c5a8e..665e53d 100644
--- a/drivers/crypto/hisilicon/qm.h
+++ b/drivers/crypto/hisilicon/qm.h
@@ -268,10 +268,12 @@ void hisi_qm_release_qp(struct hisi_qp *qp);
 int hisi_qp_send(struct hisi_qp *qp, const void *msg);
 int hisi_qm_get_free_qp_num(struct hisi_qm *qm);
 int hisi_qm_get_vft(struct hisi_qm *qm, u32 *base, u32 *number);
-int hisi_qm_set_vft(struct hisi_qm *qm, u32 fun_num, u32 base, u32 number);
 int hisi_qm_debug_init(struct hisi_qm *qm);
 enum qm_hw_ver hisi_qm_get_hw_version(struct pci_dev *pdev);
 void hisi_qm_debug_regs_clear(struct hisi_qm *qm);
+int hisi_qm_sriov_enable(struct pci_dev *pdev, int max_vfs);
+int hisi_qm_sriov_disable(struct pci_dev *pdev);
+int hisi_qm_sriov_configure(struct pci_dev *pdev, int num_vfs);
 void hisi_qm_dev_err_init(struct hisi_qm *qm);
 void hisi_qm_dev_err_uninit(struct hisi_qm *qm);
 pci_ers_result_t hisi_qm_dev_err_detected(struct pci_dev *pdev,
diff --git a/drivers/crypto/hisilicon/sec2/sec_main.c b/drivers/crypto/hisilicon/sec2/sec_main.c
index ef26239..129648a 100644
--- a/drivers/crypto/hisilicon/sec2/sec_main.c
+++ b/drivers/crypto/hisilicon/sec2/sec_main.c
@@ -892,110 +892,6 @@ static int sec_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	return ret;
 }
 
-/* now we only support equal assignment */
-static int sec_vf_q_assign(struct sec_dev *sec, u32 num_vfs)
-{
-	struct hisi_qm *qm = &sec->qm;
-	u32 qp_num = qm->qp_num;
-	u32 q_base = qp_num;
-	u32 q_num, remain_q_num;
-	int i, j, ret;
-
-	if (!num_vfs)
-		return -EINVAL;
-
-	remain_q_num = qm->ctrl_qp_num - qp_num;
-	q_num = remain_q_num / num_vfs;
-
-	for (i = 1; i <= num_vfs; i++) {
-		if (i == num_vfs)
-			q_num += remain_q_num % num_vfs;
-		ret = hisi_qm_set_vft(qm, i, q_base, q_num);
-		if (ret) {
-			for (j = i; j > 0; j--)
-				hisi_qm_set_vft(qm, j, 0, 0);
-			return ret;
-		}
-		q_base += q_num;
-	}
-
-	return 0;
-}
-
-static int sec_clear_vft_config(struct sec_dev *sec)
-{
-	struct hisi_qm *qm = &sec->qm;
-	u32 num_vfs = qm->vfs_num;
-	int ret;
-	u32 i;
-
-	for (i = 1; i <= num_vfs; i++) {
-		ret = hisi_qm_set_vft(qm, i, 0, 0);
-		if (ret)
-			return ret;
-	}
-
-	qm->vfs_num = 0;
-
-	return 0;
-}
-
-static int sec_sriov_enable(struct pci_dev *pdev, int max_vfs)
-{
-	struct sec_dev *sec = pci_get_drvdata(pdev);
-	int pre_existing_vfs, ret;
-	u32 num_vfs;
-
-	pre_existing_vfs = pci_num_vf(pdev);
-
-	if (pre_existing_vfs) {
-		pci_err(pdev, "Can't enable VF. Please disable at first!\n");
-		return 0;
-	}
-
-	num_vfs = min_t(u32, max_vfs, SEC_VF_NUM);
-
-	ret = sec_vf_q_assign(sec, num_vfs);
-	if (ret) {
-		pci_err(pdev, "Can't assign queues for VF!\n");
-		return ret;
-	}
-
-	sec->qm.vfs_num = num_vfs;
-
-	ret = pci_enable_sriov(pdev, num_vfs);
-	if (ret) {
-		pci_err(pdev, "Can't enable VF!\n");
-		sec_clear_vft_config(sec);
-		return ret;
-	}
-
-	return num_vfs;
-}
-
-static int sec_sriov_disable(struct pci_dev *pdev)
-{
-	struct sec_dev *sec = pci_get_drvdata(pdev);
-
-	if (pci_vfs_assigned(pdev)) {
-		pci_err(pdev, "Can't disable VFs while VFs are assigned!\n");
-		return -EPERM;
-	}
-
-	/* remove in sec_pci_driver will be called to free VF resources */
-	pci_disable_sriov(pdev);
-
-	return sec_clear_vft_config(sec);
-}
-
-static int sec_sriov_configure(struct pci_dev *pdev, int num_vfs)
-{
-	if (num_vfs)
-		return sec_sriov_enable(pdev, num_vfs);
-	else
-		return sec_sriov_disable(pdev);
-}
-
 static void sec_remove(struct pci_dev *pdev)
 {
 	struct sec_dev *sec = pci_get_drvdata(pdev);
@@ -1006,7 +902,7 @@ static void sec_remove(struct pci_dev *pdev)
 	hisi_qm_del_from_list(qm, &sec_devices);
 
 	if (qm->fun_type == QM_HW_PF && qm->vfs_num)
-		(void)sec_sriov_disable(pdev);
+		hisi_qm_sriov_disable(pdev);
 
 	sec_debugfs_exit(sec);
 
@@ -1030,7 +926,7 @@ static struct pci_driver sec_pci_driver = {
 	.probe = sec_probe,
 	.remove = sec_remove,
 	.err_handler = &sec_err_handler,
-	.sriov_configure = sec_sriov_configure,
+	.sriov_configure = hisi_qm_sriov_configure,
 };
 
 static void sec_register_debugfs(void)
diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c
index f5ffa02..5dcda7b 100644
--- a/drivers/crypto/hisilicon/zip/zip_main.c
+++ b/drivers/crypto/hisilicon/zip/zip_main.c
@@ -653,101 +653,6 @@ static int hisi_zip_pf_probe_init(struct hisi_zip *hisi_zip)
 	return 0;
 }
 
-/* Currently we only support equal assignment */
-static int hisi_zip_vf_q_assign(struct hisi_zip *hisi_zip, int num_vfs)
-{
-	struct hisi_qm *qm = &hisi_zip->qm;
-	u32 qp_num = qm->qp_num;
-	u32 q_base = qp_num;
-	u32 q_num, remain_q_num, i;
-	int ret;
-
-	if (!num_vfs)
-		return -EINVAL;
-
-	remain_q_num = qm->ctrl_qp_num - qp_num;
-	if (remain_q_num < num_vfs)
-		return -EINVAL;
-
-	q_num = remain_q_num / num_vfs;
-	for (i = 1; i <= num_vfs; i++) {
-		if (i == num_vfs)
-			q_num += remain_q_num % num_vfs;
-		ret = hisi_qm_set_vft(qm, i, q_base, q_num);
-		if (ret)
-			return ret;
-		q_base += q_num;
-	}
-
-	return 0;
-}
-
-static int hisi_zip_clear_vft_config(struct hisi_zip *hisi_zip)
-{
-	struct hisi_qm *qm = &hisi_zip->qm;
-	u32 i, num_vfs = qm->vfs_num;
-	int ret;
-
-	for (i = 1; i <= num_vfs; i++) {
-		ret = hisi_qm_set_vft(qm, i, 0, 0);
-		if (ret)
-			return ret;
-	}
-
-	qm->vfs_num = 0;
-
-	return 0;
-}
-
-static int hisi_zip_sriov_enable(struct pci_dev *pdev, int max_vfs)
-{
-	struct hisi_zip *hisi_zip = pci_get_drvdata(pdev);
-	int pre_existing_vfs, num_vfs, ret;
-
-	pre_existing_vfs = pci_num_vf(pdev);
-
-	if (pre_existing_vfs) {
-		dev_err(&pdev->dev,
-			"Can't enable VF. Please disable pre-enabled VFs!\n");
-		return 0;
-	}
-
-	num_vfs = min_t(int, max_vfs, HZIP_VF_NUM);
-
-	ret = hisi_zip_vf_q_assign(hisi_zip, num_vfs);
-	if (ret) {
-		dev_err(&pdev->dev, "Can't assign queues for VF!\n");
-		return ret;
-	}
-
-	hisi_zip->qm.vfs_num = num_vfs;
-
-	ret = pci_enable_sriov(pdev, num_vfs);
-	if (ret) {
-		dev_err(&pdev->dev, "Can't enable VF!\n");
-		hisi_zip_clear_vft_config(hisi_zip);
-		return ret;
-	}
-
-	return num_vfs;
-}
-
-static int hisi_zip_sriov_disable(struct pci_dev *pdev)
-{
-	struct hisi_zip *hisi_zip = pci_get_drvdata(pdev);
-
-	if (pci_vfs_assigned(pdev)) {
-		dev_err(&pdev->dev,
-			"Can't disable VFs while VFs are assigned!\n");
-		return -EPERM;
-	}
-
-	/* remove in hisi_zip_pci_driver will be called to free VF resources */
-	pci_disable_sriov(pdev);
-
-	return hisi_zip_clear_vft_config(hisi_zip);
-}
-
 static int hisi_zip_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
 	struct hisi_zip *hisi_zip;
@@ -820,7 +725,7 @@ static int hisi_zip_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	}
 
 	if (qm->fun_type == QM_HW_PF && vfs_num > 0) {
-		ret = hisi_zip_sriov_enable(pdev, vfs_num);
+		ret = hisi_qm_sriov_enable(pdev, vfs_num);
 		if (ret < 0)
 			goto err_remove_from_list;
 	}
@@ -836,21 +741,13 @@ static int hisi_zip_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	return ret;
 }
 
-static int hisi_zip_sriov_configure(struct pci_dev *pdev, int num_vfs)
-{
-	if (num_vfs == 0)
-		return hisi_zip_sriov_disable(pdev);
-	else
-		return hisi_zip_sriov_enable(pdev, num_vfs);
-}
-
 static void hisi_zip_remove(struct pci_dev *pdev)
 {
 	struct hisi_zip *hisi_zip = pci_get_drvdata(pdev);
 	struct hisi_qm *qm = &hisi_zip->qm;
 
 	if (qm->fun_type == QM_HW_PF && qm->vfs_num)
-		hisi_zip_sriov_disable(pdev);
+		hisi_qm_sriov_disable(pdev);
 
 	hisi_zip_debugfs_exit(hisi_zip);
 	hisi_qm_stop(qm);
@@ -870,7 +767,7 @@ static struct pci_driver hisi_zip_pci_driver = {
 	.probe			= hisi_zip_probe,
 	.remove			= hisi_zip_remove,
 	.sriov_configure	= IS_ENABLED(CONFIG_PCI_IOV) ?
-					hisi_zip_sriov_configure : NULL,
+					hisi_qm_sriov_configure : NULL,
 	.err_handler		= &hisi_zip_err_handler,
 };
 
-- 
2.7.4

[PATCH 3/3] crypto: hisilicon - add vfs_num module parameter for hpre/sec

[Shukun Tan]

From: Hao Fang <fanghao11@huawei.com>

The vfs_num module parameter has been used in zip driver, this patch adds
this for HPRE and SEC driver.

Signed-off-by: Hao Fang <fanghao11@huawei.com>
Signed-off-by: Shukun Tan <tanshukun1@huawei.com>
Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
Reviewed-by: Zaibo Xu <xuzaibo@huawei.com>
---
 drivers/crypto/hisilicon/hpre/hpre_main.c | 19 +++++++++++++++++++
 drivers/crypto/hisilicon/qm.h             | 20 ++++++++++++++++++++
 drivers/crypto/hisilicon/sec2/sec_main.c  | 18 ++++++++++++++++++
 drivers/crypto/hisilicon/zip/zip_main.c   |  9 +++++++--
 4 files changed, 64 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/hisilicon/hpre/hpre_main.c b/drivers/crypto/hisilicon/hpre/hpre_main.c
index 4e41d30..9cff5c1 100644
--- a/drivers/crypto/hisilicon/hpre/hpre_main.c
+++ b/drivers/crypto/hisilicon/hpre/hpre_main.c
@@ -195,6 +195,15 @@ static u32 hpre_pf_q_num = HPRE_PF_DEF_Q_NUM;
 module_param_cb(hpre_pf_q_num, &hpre_pf_q_num_ops, &hpre_pf_q_num, 0444);
 MODULE_PARM_DESC(hpre_pf_q_num, "Number of queues in PF of CS(1-1024)");
 
+static const struct kernel_param_ops vfs_num_ops = {
+	.set = vfs_num_set,
+	.get = param_get_int,
+};
+
+static u32 vfs_num;
+module_param_cb(vfs_num, &vfs_num_ops, &vfs_num, 0444);
+MODULE_PARM_DESC(vfs_num, "Number of VFs to enable(1-63), 0(default)");
+
 struct hisi_qp *hpre_create_qp(void)
 {
 	int node = cpu_to_node(smp_processor_id());
@@ -777,8 +786,18 @@ static int hpre_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		pci_err(pdev, "fail to register algs to crypto!\n");
 		goto err_with_qm_start;
 	}
+
+	if (qm->fun_type == QM_HW_PF && vfs_num) {
+		ret = hisi_qm_sriov_enable(pdev, vfs_num);
+		if (ret < 0)
+			goto err_with_crypto_register;
+	}
+
 	return 0;
 
+err_with_crypto_register:
+	hpre_algs_unregister();
+
 err_with_qm_start:
 	hisi_qm_del_from_list(qm, &hpre_devices);
 	hisi_qm_stop(qm);
diff --git a/drivers/crypto/hisilicon/qm.h b/drivers/crypto/hisilicon/qm.h
index 665e53d..1b5171b 100644
--- a/drivers/crypto/hisilicon/qm.h
+++ b/drivers/crypto/hisilicon/qm.h
@@ -8,6 +8,8 @@
 #include <linux/module.h>
 #include <linux/pci.h>
 
+#define QM_MAX_VFS_NUM_V2		63
+
 /* qm user domain */
 #define QM_ARUSER_M_CFG_1		0x100088
 #define AXUSER_SNOOP_ENABLE		BIT(30)
@@ -235,6 +237,24 @@ struct hisi_qp {
 	struct uacce_queue *uacce_q;
 };
 
+static inline int vfs_num_set(const char *val, const struct kernel_param *kp)
+{
+	u32 n;
+	int ret;
+
+	if (!val)
+		return -EINVAL;
+
+	ret = kstrtou32(val, 10, &n);
+	if (ret < 0)
+		return ret;
+
+	if (n > QM_MAX_VFS_NUM_V2)
+		return -EINVAL;
+
+	return param_set_int(val, kp);
+}
+
 static inline void hisi_qm_init_list(struct hisi_qm_list *qm_list)
 {
 	INIT_LIST_HEAD(&qm_list->list);
diff --git a/drivers/crypto/hisilicon/sec2/sec_main.c b/drivers/crypto/hisilicon/sec2/sec_main.c
index 129648a..c76c49e 100644
--- a/drivers/crypto/hisilicon/sec2/sec_main.c
+++ b/drivers/crypto/hisilicon/sec2/sec_main.c
@@ -207,6 +207,15 @@ static u32 ctx_q_num = SEC_CTX_Q_NUM_DEF;
 module_param_cb(ctx_q_num, &sec_ctx_q_num_ops, &ctx_q_num, 0444);
 MODULE_PARM_DESC(ctx_q_num, "Queue num in ctx (24 default, 2, 4, ..., 32)");
 
+static const struct kernel_param_ops vfs_num_ops = {
+	.set = vfs_num_set,
+	.get = param_get_int,
+};
+
+static u32 vfs_num;
+module_param_cb(vfs_num, &vfs_num_ops, &vfs_num, 0444);
+MODULE_PARM_DESC(vfs_num, "Number of VFs to enable(1-63), 0(default)");
+
 void sec_destroy_qps(struct hisi_qp **qps, int qp_num)
 {
 	hisi_qm_free_qps(qps, qp_num);
@@ -876,8 +885,17 @@ static int sec_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		goto err_remove_from_list;
 	}
 
+	if (qm->fun_type == QM_HW_PF && vfs_num) {
+		ret = hisi_qm_sriov_enable(pdev, vfs_num);
+		if (ret < 0)
+			goto err_crypto_unregister;
+	}
+
 	return 0;
 
+err_crypto_unregister:
+	sec_unregister_from_crypto();
+
 err_remove_from_list:
 	hisi_qm_del_from_list(qm, &sec_devices);
 	sec_debugfs_exit(sec);
diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c
index 5dcda7b..fe9d6d2 100644
--- a/drivers/crypto/hisilicon/zip/zip_main.c
+++ b/drivers/crypto/hisilicon/zip/zip_main.c
@@ -231,9 +231,14 @@ static u32 pf_q_num = HZIP_PF_DEF_Q_NUM;
 module_param_cb(pf_q_num, &pf_q_num_ops, &pf_q_num, 0444);
 MODULE_PARM_DESC(pf_q_num, "Number of queues in PF(v1 1-4096, v2 1-1024)");
 
+static const struct kernel_param_ops vfs_num_ops = {
+	.set = vfs_num_set,
+	.get = param_get_int,
+};
+
 static u32 vfs_num;
-module_param(vfs_num, uint, 0444);
-MODULE_PARM_DESC(vfs_num, "Number of VFs to enable(1-63)");
+module_param_cb(vfs_num, &vfs_num_ops, &vfs_num, 0444);
+MODULE_PARM_DESC(vfs_num, "Number of VFs to enable(1-63), 0(default)");
 
 static const struct pci_device_id hisi_zip_dev_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_HUAWEI, PCI_DEVICE_ID_ZIP_PF) },
-- 
2.7.4

Re: [PATCH 0/3] crypto: hisilicon - refactor vfs_num related codes

[Herbert Xu]

On Thu, Apr 02, 2020 at 02:53:00PM +0800, Shukun Tan wrote:
> This series clean the vfs_num related redundant code in this series,
> move all into QM.
> 
> Hao Fang (1):
>   crypto: hisilicon - add vfs_num module parameter for hpre/sec
> 
> Shukun Tan (2):
>   crypto: hisilicon - put vfs_num into struct hisi_qm
>   crypto: hisilicon - unify SR-IOV related codes into QM
> 
>  drivers/crypto/hisilicon/hpre/hpre.h      |   1 -
>  drivers/crypto/hisilicon/hpre/hpre_main.c | 130 +++++-----------------------
>  drivers/crypto/hisilicon/qm.c             | 136 +++++++++++++++++++++++++++--
>  drivers/crypto/hisilicon/qm.h             |  25 +++++-
>  drivers/crypto/hisilicon/sec2/sec.h       |   1 -
>  drivers/crypto/hisilicon/sec2/sec_main.c  | 137 ++++++------------------------
>  drivers/crypto/hisilicon/zip/zip_main.c   | 131 ++++------------------------
>  7 files changed, 215 insertions(+), 346 deletions(-)

All applied.  Thanks.
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt