1 files changed, 72 insertions, 12 deletions

diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c b/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c
index d4ee2454675b..b5805969404f 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c
@@ -216,16 +216,21 @@ static void octep_init_config_cn93_pf(struct octep_device *oct)
 	conf->sriov_cfg.vf_srn = CN93_SDP_EPF_RINFO_SRN(val);
 
 	val = octep_read_csr64(oct, CN93_SDP_MAC_PF_RING_CTL(oct->pcie_port));
-	conf->pf_ring_cfg.srn =  CN93_SDP_MAC_PF_RING_CTL_SRN(val);
-	conf->pf_ring_cfg.max_io_rings = CN93_SDP_MAC_PF_RING_CTL_RPPF(val);
-	conf->pf_ring_cfg.active_io_rings = conf->pf_ring_cfg.max_io_rings;
+	if (oct->chip_id == OCTEP_PCI_DEVICE_ID_CN98_PF) {
+		conf->pf_ring_cfg.srn =  CN98_SDP_MAC_PF_RING_CTL_SRN(val);
+		conf->pf_ring_cfg.max_io_rings = CN98_SDP_MAC_PF_RING_CTL_RPPF(val);
+		conf->pf_ring_cfg.active_io_rings = conf->pf_ring_cfg.max_io_rings;
+	} else {
+		conf->pf_ring_cfg.srn =  CN93_SDP_MAC_PF_RING_CTL_SRN(val);
+		conf->pf_ring_cfg.max_io_rings = CN93_SDP_MAC_PF_RING_CTL_RPPF(val);
+		conf->pf_ring_cfg.active_io_rings = conf->pf_ring_cfg.max_io_rings;
+	}
 	dev_info(&pdev->dev, "pf_srn=%u rpvf=%u nvfs=%u rppf=%u\n",
 		 conf->pf_ring_cfg.srn, conf->sriov_cfg.active_rings_per_vf,
 		 conf->sriov_cfg.active_vfs, conf->pf_ring_cfg.active_io_rings);
 
 	conf->iq.num_descs = OCTEP_IQ_MAX_DESCRIPTORS;
 	conf->iq.instr_type = OCTEP_64BYTE_INSTR;
-	conf->iq.pkind = 0;
 	conf->iq.db_min = OCTEP_DB_MIN;
 	conf->iq.intr_threshold = OCTEP_IQ_INTR_THRESHOLD;
 
@@ -357,16 +362,55 @@ static void octep_setup_mbox_regs_cn93_pf(struct octep_device *oct, int q_no)
 {
 	struct octep_mbox *mbox = oct->mbox[q_no];
 
-	mbox->q_no = q_no;
-
-	/* PF mbox interrupt reg */
-	mbox->mbox_int_reg = oct->mmio[0].hw_addr + CN93_SDP_EPF_MBOX_RINT(0);
-
 	/* PF to VF DATA reg. PF writes into this reg */
-	mbox->mbox_write_reg = oct->mmio[0].hw_addr + CN93_SDP_R_MBOX_PF_VF_DATA(q_no);
+	mbox->pf_vf_data_reg = oct->mmio[0].hw_addr + CN93_SDP_MBOX_PF_VF_DATA(q_no);
 
 	/* VF to PF DATA reg. PF reads from this reg */
-	mbox->mbox_read_reg = oct->mmio[0].hw_addr + CN93_SDP_R_MBOX_VF_PF_DATA(q_no);
+	mbox->vf_pf_data_reg = oct->mmio[0].hw_addr + CN93_SDP_MBOX_VF_PF_DATA(q_no);
+}
+
+/* Poll for mailbox messages from VF */
+static void octep_poll_pfvf_mailbox(struct octep_device *oct)
+{
+	u32 vf, active_vfs, active_rings_per_vf, vf_mbox_queue;
+	u64 reg0, reg1;
+
+	reg0 = octep_read_csr64(oct, CN93_SDP_EPF_MBOX_RINT(0));
+	reg1 = octep_read_csr64(oct, CN93_SDP_EPF_MBOX_RINT(1));
+	if (reg0 || reg1) {
+		active_vfs = CFG_GET_ACTIVE_VFS(oct->conf);
+		active_rings_per_vf = CFG_GET_ACTIVE_RPVF(oct->conf);
+		for (vf = 0; vf < active_vfs; vf++) {
+			vf_mbox_queue = vf * active_rings_per_vf;
+
+			if (vf_mbox_queue < 64) {
+				if (!(reg0 & (0x1UL << vf_mbox_queue)))
+					continue;
+			} else {
+				if (!(reg1 & (0x1UL << (vf_mbox_queue - 64))))
+					continue;
+			}
+
+			if (!oct->mbox[vf_mbox_queue]) {
+				dev_err(&oct->pdev->dev, "bad mbox vf %d\n", vf);
+				continue;
+			}
+			schedule_work(&oct->mbox[vf_mbox_queue]->wk.work);
+		}
+		if (reg0)
+			octep_write_csr64(oct, CN93_SDP_EPF_MBOX_RINT(0), reg0);
+		if (reg1)
+			octep_write_csr64(oct, CN93_SDP_EPF_MBOX_RINT(1), reg1);
+	}
+}
+
+/* PF-VF mailbox interrupt handler */
+static irqreturn_t octep_pfvf_mbox_intr_handler_cn93_pf(void *dev)
+{
+	struct octep_device *oct = (struct octep_device *)dev;
+
+	octep_poll_pfvf_mailbox(oct);
+	return IRQ_HANDLED;
 }
 
 /* Poll OEI events like heartbeat */
@@ -398,6 +442,7 @@ static irqreturn_t octep_oei_intr_handler_cn93_pf(void *dev)
  */
 static void octep_poll_non_ioq_interrupts_cn93_pf(struct octep_device *oct)
 {
+	octep_poll_pfvf_mailbox(oct);
 	octep_poll_oei_cn93_pf(oct);
 }
 
@@ -578,6 +623,13 @@ static irqreturn_t octep_ioq_intr_handler_cn93_pf(void *data)
 	return IRQ_HANDLED;
 }
 
+/* soft reset of 98xx */
+static int octep_soft_reset_cn98_pf(struct octep_device *oct)
+{
+	dev_info(&oct->pdev->dev, "CN98XX: skip soft reset\n");
+	return 0;
+}
+
 /* soft reset of 93xx */
 static int octep_soft_reset_cn93_pf(struct octep_device *oct)
 {
@@ -634,6 +686,8 @@ static void octep_enable_interrupts_cn93_pf(struct octep_device *oct)
 
 	octep_write_csr64(oct, CN93_SDP_EPF_MISC_RINT_ENA_W1S, intr_mask);
 	octep_write_csr64(oct, CN93_SDP_EPF_DMA_RINT_ENA_W1S, intr_mask);
+	octep_write_csr64(oct, CN93_SDP_EPF_MBOX_RINT_ENA_W1S(0), -1ULL);
+	octep_write_csr64(oct, CN93_SDP_EPF_MBOX_RINT_ENA_W1S(1), -1ULL);
 
 	octep_write_csr64(oct, CN93_SDP_EPF_DMA_VF_RINT_ENA_W1S(0), -1ULL);
 	octep_write_csr64(oct, CN93_SDP_EPF_PP_VF_RINT_ENA_W1S(0), -1ULL);
@@ -660,6 +714,8 @@ static void octep_disable_interrupts_cn93_pf(struct octep_device *oct)
 
 	octep_write_csr64(oct, CN93_SDP_EPF_MISC_RINT_ENA_W1C, intr_mask);
 	octep_write_csr64(oct, CN93_SDP_EPF_DMA_RINT_ENA_W1C, intr_mask);
+	octep_write_csr64(oct, CN93_SDP_EPF_MBOX_RINT_ENA_W1C(0), -1ULL);
+	octep_write_csr64(oct, CN93_SDP_EPF_MBOX_RINT_ENA_W1C(1), -1ULL);
 
 	octep_write_csr64(oct, CN93_SDP_EPF_DMA_VF_RINT_ENA_W1C(0), -1ULL);
 	octep_write_csr64(oct, CN93_SDP_EPF_PP_VF_RINT_ENA_W1C(0), -1ULL);
@@ -795,6 +851,7 @@ void octep_device_setup_cn93_pf(struct octep_device *oct)
 	oct->hw_ops.setup_oq_regs = octep_setup_oq_regs_cn93_pf;
 	oct->hw_ops.setup_mbox_regs = octep_setup_mbox_regs_cn93_pf;
 
+	oct->hw_ops.mbox_intr_handler = octep_pfvf_mbox_intr_handler_cn93_pf;
 	oct->hw_ops.oei_intr_handler = octep_oei_intr_handler_cn93_pf;
 	oct->hw_ops.ire_intr_handler = octep_ire_intr_handler_cn93_pf;
 	oct->hw_ops.ore_intr_handler = octep_ore_intr_handler_cn93_pf;
@@ -806,7 +863,10 @@ void octep_device_setup_cn93_pf(struct octep_device *oct)
 	oct->hw_ops.misc_intr_handler = octep_misc_intr_handler_cn93_pf;
 	oct->hw_ops.rsvd_intr_handler = octep_rsvd_intr_handler_cn93_pf;
 	oct->hw_ops.ioq_intr_handler = octep_ioq_intr_handler_cn93_pf;
-	oct->hw_ops.soft_reset = octep_soft_reset_cn93_pf;
+	if (oct->chip_id == OCTEP_PCI_DEVICE_ID_CN98_PF)
+		oct->hw_ops.soft_reset = octep_soft_reset_cn98_pf;
+	else
+		oct->hw_ops.soft_reset = octep_soft_reset_cn93_pf;
 	oct->hw_ops.reinit_regs = octep_reinit_regs_cn93_pf;
 
 	oct->hw_ops.enable_interrupts = octep_enable_interrupts_cn93_pf;