[PATCH net-next v1 09/10] crypto/octeontx2: register error interrupts for inline cptlf

Srujana Challa
2023-12-11T07:20:28Z

From: Nithin Dabilpuram <ndabilpuram@marvell.com>

Register errors interrupts for inline cptlf attached to PF driver
so that SMMU faults and other errors can be reported.

Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
---
drivers/crypto/marvell/octeontx2/otx2_cptlf.c | 101 +++++++++++-------
drivers/crypto/marvell/octeontx2/otx2_cptlf.h | 6 +-
drivers/crypto/marvell/octeontx2/otx2_cptpf.h | 4 +
.../marvell/octeontx2/otx2_cptpf_main.c | 17 ++-
.../marvell/octeontx2/otx2_cptpf_mbox.c | 68 ++++++++++--
.../marvell/octeontx2/otx2_cptvf_main.c | 12 ++-
6 files changed, 153 insertions(+), 55 deletions(-)

diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptlf.c b/drivers/crypto/marvell/octeontx2/otx2_cptlf.c
index 6edd27ff8c4e..c3bafd9a11dd 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cptlf.c
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptlf.c
@@ -151,26 +151,14 @@ static void cptlf_set_misc_intrs(struct otx2_cptlfs_info *lfs, u8 enable)
irq_misc.u);
}

-static void cptlf_enable_intrs(struct otx2_cptlfs_info *lfs)
+static void cptlf_set_done_intrs(struct otx2_cptlfs_info *lfs, u8 enable)
{
+ u64 reg = enable ? OTX2_CPT_LF_DONE_INT_ENA_W1S :
+ OTX2_CPT_LF_DONE_INT_ENA_W1C;
int slot;

- /* Enable done interrupts */
for (slot = 0; slot < lfs->lfs_num; slot++)
- otx2_cpt_write64(lfs->reg_base, lfs->blkaddr, slot,
- OTX2_CPT_LF_DONE_INT_ENA_W1S, 0x1);
- /* Enable Misc interrupts */
- cptlf_set_misc_intrs(lfs, true);
-}
-
-static void cptlf_disable_intrs(struct otx2_cptlfs_info *lfs)
-{
- int slot;
-
- for (slot = 0; slot < lfs->lfs_num; slot++)
- otx2_cpt_write64(lfs->reg_base, lfs->blkaddr, slot,
- OTX2_CPT_LF_DONE_INT_ENA_W1C, 0x1);
- cptlf_set_misc_intrs(lfs, false);
+ otx2_cpt_write64(lfs->reg_base, lfs->blkaddr, slot, reg, 0x1);
}

static inline int cptlf_read_done_cnt(struct otx2_cptlf_info *lf)
@@ -257,24 +245,44 @@ static irqreturn_t cptlf_done_intr_handler(int irq, void *arg)
return IRQ_HANDLED;
}

-void otx2_cptlf_unregister_interrupts(struct otx2_cptlfs_info *lfs)
+void otx2_cptlf_unregister_misc_interrupts(struct otx2_cptlfs_info *lfs)
{
- int i, offs, vector;
+ int i, irq_offs, vector;

+ irq_offs = OTX2_CPT_LF_INT_VEC_E_MISC;
for (i = 0; i < lfs->lfs_num; i++) {
- for (offs = 0; offs < OTX2_CPT_LF_MSIX_VECTORS; offs++) {
- if (!lfs->lf[i].is_irq_reg[offs])
- continue;
+ if (!lfs->lf[i].is_irq_reg[irq_offs])
+ continue;

- vector = pci_irq_vector(lfs->pdev,
- lfs->lf[i].msix_offset + offs);
- free_irq(vector, &lfs->lf[i]);
- lfs->lf[i].is_irq_reg[offs] = false;
- }
+ vector = pci_irq_vector(lfs->pdev,
+ lfs->lf[i].msix_offset + irq_offs);
+ free_irq(vector, &lfs->lf[i]);
+ lfs->lf[i].is_irq_reg[irq_offs] = false;
+ }
+
+ cptlf_set_misc_intrs(lfs, false);
+}
+EXPORT_SYMBOL_NS_GPL(otx2_cptlf_unregister_misc_interrupts,
+ CRYPTO_DEV_OCTEONTX2_CPT);
+
+void otx2_cptlf_unregister_done_interrupts(struct otx2_cptlfs_info *lfs)
+{
+ int i, irq_offs, vector;
+
+ irq_offs = OTX2_CPT_LF_INT_VEC_E_DONE;
+ for (i = 0; i < lfs->lfs_num; i++) {
+ if (!lfs->lf[i].is_irq_reg[irq_offs])
+ continue;
+
+ vector = pci_irq_vector(lfs->pdev,
+ lfs->lf[i].msix_offset + irq_offs);
+ free_irq(vector, &lfs->lf[i]);
+ lfs->lf[i].is_irq_reg[irq_offs] = false;
}
- cptlf_disable_intrs(lfs);
+
+ cptlf_set_done_intrs(lfs, false);
}
-EXPORT_SYMBOL_NS_GPL(otx2_cptlf_unregister_interrupts,
+EXPORT_SYMBOL_NS_GPL(otx2_cptlf_unregister_done_interrupts,
CRYPTO_DEV_OCTEONTX2_CPT);

static int cptlf_do_register_interrrupts(struct otx2_cptlfs_info *lfs,
@@ -296,34 +304,53 @@ static int cptlf_do_register_interrrupts(struct otx2_cptlfs_info *lfs,
return ret;
}

-int otx2_cptlf_register_interrupts(struct otx2_cptlfs_info *lfs)
+int otx2_cptlf_register_misc_interrupts(struct otx2_cptlfs_info *lfs)
{
+ bool is_cpt1 = (lfs->blkaddr == BLKADDR_CPT1);
int irq_offs, ret, i;

+ irq_offs = OTX2_CPT_LF_INT_VEC_E_MISC;
for (i = 0; i < lfs->lfs_num; i++) {
- irq_offs = OTX2_CPT_LF_INT_VEC_E_MISC;
- snprintf(lfs->lf[i].irq_name[irq_offs], 32, "CPTLF Misc%d", i);
+ snprintf(lfs->lf[i].irq_name[irq_offs], 32, "CPT%dLF Misc%d",
+ is_cpt1, i);
ret = cptlf_do_register_interrrupts(lfs, i, irq_offs,
cptlf_misc_intr_handler);
if (ret)
goto free_irq;
+ }
+ cptlf_set_misc_intrs(lfs, true);
+ return 0;

- irq_offs = OTX2_CPT_LF_INT_VEC_E_DONE;
- snprintf(lfs->lf[i].irq_name[irq_offs], 32, "OTX2_CPTLF Done%d",
- i);
+free_irq:
+ otx2_cptlf_unregister_misc_interrupts(lfs);
+ return ret;
+}
+EXPORT_SYMBOL_NS_GPL(otx2_cptlf_register_misc_interrupts,
+ CRYPTO_DEV_OCTEONTX2_CPT);
+
+int otx2_cptlf_register_done_interrupts(struct otx2_cptlfs_info *lfs)
+{
+ bool is_cpt1 = (lfs->blkaddr == BLKADDR_CPT1);
+ int irq_offs, ret, i;
+
+ irq_offs = OTX2_CPT_LF_INT_VEC_E_DONE;
+ for (i = 0; i < lfs->lfs_num; i++) {
+ snprintf(lfs->lf[i].irq_name[irq_offs], 32,
+ "OTX2_CPT%dLF Done%d", is_cpt1, i);
ret = cptlf_do_register_interrrupts(lfs, i, irq_offs,
cptlf_done_intr_handler);
if (ret)
goto free_irq;
}
- cptlf_enable_intrs(lfs);
+ cptlf_set_done_intrs(lfs, true);
return 0;

free_irq:
- otx2_cptlf_unregister_interrupts(lfs);
+ otx2_cptlf_unregister_done_interrupts(lfs);
return ret;
}
-EXPORT_SYMBOL_NS_GPL(otx2_cptlf_register_interrupts, CRYPTO_DEV_OCTEONTX2_CPT);
+EXPORT_SYMBOL_NS_GPL(otx2_cptlf_register_done_interrupts,
+ CRYPTO_DEV_OCTEONTX2_CPT);

void otx2_cptlf_free_irqs_affinity(struct otx2_cptlfs_info *lfs)
{
diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptlf.h b/drivers/crypto/marvell/octeontx2/otx2_cptlf.h
index 8d6f10f67ac0..315a89a9bcb6 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cptlf.h
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptlf.h
@@ -409,8 +409,10 @@ static inline void otx2_cptlf_set_dev_info(struct otx2_cptlfs_info *lfs,
int otx2_cptlf_init(struct otx2_cptlfs_info *lfs, u8 eng_grp_msk, int pri,
int lfs_num);
void otx2_cptlf_shutdown(struct otx2_cptlfs_info *lfs);
-int otx2_cptlf_register_interrupts(struct otx2_cptlfs_info *lfs);
-void otx2_cptlf_unregister_interrupts(struct otx2_cptlfs_info *lfs);
+int otx2_cptlf_register_misc_interrupts(struct otx2_cptlfs_info *lfs);
+int otx2_cptlf_register_done_interrupts(struct otx2_cptlfs_info *lfs);
+void otx2_cptlf_unregister_misc_interrupts(struct otx2_cptlfs_info *lfs);
+void otx2_cptlf_unregister_done_interrupts(struct otx2_cptlfs_info *lfs);
void otx2_cptlf_free_irqs_affinity(struct otx2_cptlfs_info *lfs);
int otx2_cptlf_set_irqs_affinity(struct otx2_cptlfs_info *lfs);

diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptpf.h b/drivers/crypto/marvell/octeontx2/otx2_cptpf.h
index a209ec5af381..e5859a1e1c60 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cptpf.h
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptpf.h
@@ -71,4 +71,8 @@ void otx2_cptpf_afpf_mbox_up_handler(struct work_struct *work);
irqreturn_t otx2_cptpf_vfpf_mbox_intr(int irq, void *arg);
void otx2_cptpf_vfpf_mbox_handler(struct work_struct *work);

+int otx2_inline_cptlf_setup(struct otx2_cptpf_dev *cptpf,
+ struct otx2_cptlfs_info *lfs, u8 egrp, int num_lfs);
+void otx2_inline_cptlf_cleanup(struct otx2_cptlfs_info *lfs);
+
#endif /* __OTX2_CPTPF_H */
diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c b/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c
index 7d44b54659bf..79afa3a451a7 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c
@@ -725,7 +725,7 @@ static int otx2_cptpf_probe(struct pci_dev *pdev,
{
struct device *dev = &pdev->dev;
struct otx2_cptpf_dev *cptpf;
- int err;
+ int err, num_vec;

cptpf = devm_kzalloc(dev, sizeof(*cptpf), GFP_KERNEL);
if (!cptpf)
@@ -760,8 +760,11 @@ static int otx2_cptpf_probe(struct pci_dev *pdev,
if (err)
goto clear_drvdata;

- err = pci_alloc_irq_vectors(pdev, RVU_PF_INT_VEC_CNT,
- RVU_PF_INT_VEC_CNT, PCI_IRQ_MSIX);
+ num_vec = pci_msix_vec_count(cptpf->pdev);
+ if (num_vec <= 0)
+ goto clear_drvdata;
+
+ err = pci_alloc_irq_vectors(pdev, num_vec, num_vec, PCI_IRQ_MSIX);
if (err < 0) {
dev_err(dev, "Request for %d msix vectors failed\n",
RVU_PF_INT_VEC_CNT);
@@ -825,6 +828,14 @@ static void otx2_cptpf_remove(struct pci_dev *pdev)

cptpf_sriov_disable(pdev);
otx2_cpt_unregister_dl(cptpf);
+
+ /* Cleanup Inline CPT LF's if attached */
+ if (cptpf->lfs.lfs_num)
+ otx2_inline_cptlf_cleanup(&cptpf->lfs);
+
+ if (cptpf->cpt1_lfs.lfs_num)
+ otx2_inline_cptlf_cleanup(&cptpf->cpt1_lfs);
+
/* Delete sysfs entry created for kernel VF limits */
sysfs_remove_group(&pdev->dev.kobj, &cptpf_sysfs_group);
/* Cleanup engine groups */
diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptpf_mbox.c b/drivers/crypto/marvell/octeontx2/otx2_cptpf_mbox.c
index bbabb57b4665..5d63763db2af 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cptpf_mbox.c
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptpf_mbox.c
@@ -199,6 +199,47 @@ static int rx_inline_ipsec_lf_cfg(struct otx2_cptpf_dev *cptpf, u8 egrp,
return send_inline_ipsec_inbound_msg(cptpf, req->sso_pf_func, 0);
}

+int
+otx2_inline_cptlf_setup(struct otx2_cptpf_dev *cptpf,
+ struct otx2_cptlfs_info *lfs, u8 egrp, int num_lfs)
+{
+ int ret;
+
+ ret = otx2_cptlf_init(lfs, 1 << egrp, OTX2_CPT_QUEUE_HI_PRIO, 1);
+ if (ret) {
+ dev_err(&cptpf->pdev->dev,
+ "LF configuration failed for RX inline ipsec.\n");
+ return ret;
+ }
+
+ /* Get msix offsets for attached LFs */
+ ret = otx2_cpt_msix_offset_msg(lfs);
+ if (ret)
+ goto cleanup_lf;
+
+ /* Register for CPT LF Misc interrupts */
+ ret = otx2_cptlf_register_misc_interrupts(lfs);
+ if (ret)
+ goto free_irq;
+
+ return 0;
+free_irq:
+ otx2_cptlf_unregister_misc_interrupts(lfs);
+cleanup_lf:
+ otx2_cptlf_shutdown(lfs);
+ return ret;
+}
+
+void
+otx2_inline_cptlf_cleanup(struct otx2_cptlfs_info *lfs)
+{
+ /* Unregister misc interrupt */
+ otx2_cptlf_unregister_misc_interrupts(lfs);
+
+ /* Cleanup LFs */
+ otx2_cptlf_shutdown(lfs);
+}
+
static int handle_msg_rx_inline_ipsec_lf_cfg(struct otx2_cptpf_dev *cptpf,
struct mbox_msghdr *req)
{
@@ -226,11 +267,9 @@ static int handle_msg_rx_inline_ipsec_lf_cfg(struct otx2_cptpf_dev *cptpf,
otx2_cptlf_set_dev_info(&cptpf->lfs, cptpf->pdev, cptpf->reg_base,
&cptpf->afpf_mbox, BLKADDR_CPT0);
cptpf->lfs.global_slot = 0;
- ret = otx2_cptlf_init(&cptpf->lfs, 1 << egrp, OTX2_CPT_QUEUE_HI_PRIO,
- num_lfs);
+ ret = otx2_inline_cptlf_setup(cptpf, &cptpf->lfs, egrp, num_lfs);
if (ret) {
- dev_err(&cptpf->pdev->dev,
- "LF configuration failed for RX inline ipsec.\n");
+ dev_err(&cptpf->pdev->dev, "Inline-Ipsec CPT0 LF setup failed.\n");
return ret;
}

@@ -240,11 +279,10 @@ static int handle_msg_rx_inline_ipsec_lf_cfg(struct otx2_cptpf_dev *cptpf,
cptpf->reg_base, &cptpf->afpf_mbox,
BLKADDR_CPT1);
cptpf->cpt1_lfs.global_slot = num_lfs;
- ret = otx2_cptlf_init(&cptpf->cpt1_lfs, 1 << egrp,
- OTX2_CPT_QUEUE_HI_PRIO, num_lfs);
+ ret = otx2_inline_cptlf_setup(cptpf, &cptpf->cpt1_lfs, egrp,
+ num_lfs);
if (ret) {
- dev_err(&cptpf->pdev->dev,
- "LF configuration failed for RX inline ipsec.\n");
+ dev_err(&cptpf->pdev->dev, "Inline CPT1 LF setup failed.\n");
goto lf_cleanup;
}
cptpf->rsrc_req_blkaddr = 0;
@@ -257,9 +295,9 @@ static int handle_msg_rx_inline_ipsec_lf_cfg(struct otx2_cptpf_dev *cptpf,
return 0;

lf1_cleanup:
- otx2_cptlf_shutdown(&cptpf->cpt1_lfs);
+ otx2_inline_cptlf_cleanup(&cptpf->cpt1_lfs);
lf_cleanup:
- otx2_cptlf_shutdown(&cptpf->lfs);
+ otx2_inline_cptlf_cleanup(&cptpf->lfs);
return ret;
}

@@ -414,6 +452,8 @@ static void process_afpf_mbox_msg(struct otx2_cptpf_dev *cptpf,
struct otx2_cptlfs_info *lfs = &cptpf->lfs;
struct device *dev = &cptpf->pdev->dev;
struct cpt_rd_wr_reg_msg *rsp_rd_wr;
+ struct msix_offset_rsp *rsp_msix;
+ int i;

if (msg->id >= MBOX_MSG_MAX) {
dev_err(dev, "MBOX msg with unknown ID %d\n", msg->id);
@@ -432,6 +472,14 @@ static void process_afpf_mbox_msg(struct otx2_cptpf_dev *cptpf,
cptpf->pf_id = (msg->pcifunc >> RVU_PFVF_PF_SHIFT) &
RVU_PFVF_PF_MASK;
break;
+ case MBOX_MSG_MSIX_OFFSET:
+ rsp_msix = (struct msix_offset_rsp *) msg;
+ for (i = 0; i < rsp_msix->cptlfs; i++)
+ lfs->lf[i].msix_offset = rsp_msix->cptlf_msixoff[i];
+
+ for (i = 0; i < rsp_msix->cpt1_lfs; i++)
+ lfs->lf[i].msix_offset = rsp_msix->cpt1_lf_msixoff[i];
+ break;
case MBOX_MSG_CPT_RD_WR_REGISTER:
rsp_rd_wr = (struct cpt_rd_wr_reg_msg *)msg;
if (msg->rc) {
diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c b/drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c
index 5d1e11135c17..83c3fd8e2e57 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c
@@ -246,7 +246,8 @@ static void cptvf_lf_shutdown(struct otx2_cptlfs_info *lfs)
/* Unregister crypto algorithms */
otx2_cpt_crypto_exit(lfs->pdev, THIS_MODULE);
/* Unregister LFs interrupts */
- otx2_cptlf_unregister_interrupts(lfs);
+ otx2_cptlf_unregister_misc_interrupts(lfs);
+ otx2_cptlf_unregister_done_interrupts(lfs);
/* Cleanup LFs software side */
lf_sw_cleanup(lfs);
/* Send request to detach LFs */
@@ -298,7 +299,11 @@ static int cptvf_lf_init(struct otx2_cptvf_dev *cptvf)
goto cleanup_lf;

/* Register LFs interrupts */
- ret = otx2_cptlf_register_interrupts(lfs);
+ ret = otx2_cptlf_register_misc_interrupts(lfs);
+ if (ret)
+ goto cleanup_lf_sw;
+
+ ret = otx2_cptlf_register_done_interrupts(lfs);
if (ret)
goto cleanup_lf_sw;

@@ -319,7 +324,8 @@ static int cptvf_lf_init(struct otx2_cptvf_dev *cptvf)
disable_irqs:
otx2_cptlf_free_irqs_affinity(lfs);
unregister_intr:
- otx2_cptlf_unregister_interrupts(lfs);
+ otx2_cptlf_unregister_misc_interrupts(lfs);
+ otx2_cptlf_unregister_done_interrupts(lfs);
cleanup_lf_sw:
lf_sw_cleanup(lfs);
cleanup_lf:
--
2.25.1