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Message-ID: <20220127173055.308918-4-Raju.Lakkaraju@microchip.com>
Date: Thu, 27 Jan 2022 23:00:53 +0530
From: Raju Lakkaraju <Raju.Lakkaraju@...rochip.com>
To: <netdev@...r.kernel.org>
CC: <davem@...emloft.net>, <kuba@...nel.org>,
<UNGLinuxDriver@...rochip.com>
Subject: [PATCH net-next 3/5] net: lan743x: Add MSI-X interrupts increased from 8 to 16 and Interrupt De-assertion timers increased from 8 to 16
PCI1A011/PCI1A041 support upto 16 MSI-X interrupts and 16 De-assertion timers
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@...rochip.com>
---
drivers/net/ethernet/microchip/lan743x_main.c | 37 +++++++++++++++----
drivers/net/ethernet/microchip/lan743x_main.h | 6 ++-
2 files changed, 34 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index ce97c8ce8b1c..daba17b0ad6c 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -422,7 +422,7 @@ static u32 lan743x_intr_get_vector_flags(struct lan743x_adapter *adapter,
{
int index;
- for (index = 0; index < LAN743X_MAX_VECTOR_COUNT; index++) {
+ for (index = 0; index < adapter->max_vector_counter; index++) {
if (adapter->intr.vector_list[index].int_mask & int_mask)
return adapter->intr.vector_list[index].flags;
}
@@ -435,9 +435,12 @@ static void lan743x_intr_close(struct lan743x_adapter *adapter)
int index = 0;
lan743x_csr_write(adapter, INT_EN_CLR, INT_BIT_MAS_);
- lan743x_csr_write(adapter, INT_VEC_EN_CLR, 0x000000FF);
+ if (adapter->is_pcia0x1)
+ lan743x_csr_write(adapter, INT_VEC_EN_CLR, 0x0000FFFF);
+ else
+ lan743x_csr_write(adapter, INT_VEC_EN_CLR, 0x000000FF);
- for (index = 0; index < LAN743X_MAX_VECTOR_COUNT; index++) {
+ for (index = 0; index < intr->number_of_vectors; index++) {
if (intr->flags & INTR_FLAG_IRQ_REQUESTED(index)) {
lan743x_intr_unregister_isr(adapter, index);
intr->flags &= ~INTR_FLAG_IRQ_REQUESTED(index);
@@ -457,10 +460,11 @@ static void lan743x_intr_close(struct lan743x_adapter *adapter)
static int lan743x_intr_open(struct lan743x_adapter *adapter)
{
- struct msix_entry msix_entries[LAN743X_MAX_VECTOR_COUNT];
+ struct msix_entry msix_entries[PCIA0X1_MAX_VECTOR_COUNT];
struct lan743x_intr *intr = &adapter->intr;
unsigned int max_used_tx_channels;
u32 int_vec_en_auto_clr = 0;
+ u8 max_vector_counter;
u32 int_vec_map0 = 0;
u32 int_vec_map1 = 0;
int ret = -ENODEV;
@@ -470,9 +474,10 @@ static int lan743x_intr_open(struct lan743x_adapter *adapter)
intr->number_of_vectors = 0;
/* Try to set up MSIX interrupts */
+ max_vector_counter = adapter->max_vector_counter;
memset(&msix_entries[0], 0,
- sizeof(struct msix_entry) * LAN743X_MAX_VECTOR_COUNT);
- for (index = 0; index < LAN743X_MAX_VECTOR_COUNT; index++)
+ sizeof(struct msix_entry) * max_vector_counter);
+ for (index = 0; index < max_vector_counter; index++)
msix_entries[index].entry = index;
max_used_tx_channels = adapter->max_used_tx_channels;
ret = pci_enable_msix_range(adapter->pdev,
@@ -561,7 +566,21 @@ static int lan743x_intr_open(struct lan743x_adapter *adapter)
lan743x_csr_write(adapter, INT_VEC_EN_SET,
INT_VEC_EN_(0));
- if (!(adapter->csr.flags & LAN743X_CSR_FLAG_IS_A0)) {
+ if (adapter->is_pcia0x1) {
+ lan743x_csr_write(adapter, INT_MOD_CFG0, LAN743X_INT_MOD);
+ lan743x_csr_write(adapter, INT_MOD_CFG1, LAN743X_INT_MOD);
+ lan743x_csr_write(adapter, INT_MOD_CFG2, LAN743X_INT_MOD);
+ lan743x_csr_write(adapter, INT_MOD_CFG3, LAN743X_INT_MOD);
+ lan743x_csr_write(adapter, INT_MOD_CFG4, LAN743X_INT_MOD);
+ lan743x_csr_write(adapter, INT_MOD_CFG5, LAN743X_INT_MOD);
+ lan743x_csr_write(adapter, INT_MOD_CFG6, LAN743X_INT_MOD);
+ lan743x_csr_write(adapter, INT_MOD_CFG7, LAN743X_INT_MOD);
+ lan743x_csr_write(adapter, INT_MOD_CFG8, LAN743X_INT_MOD);
+ lan743x_csr_write(adapter, INT_MOD_CFG9, LAN743X_INT_MOD);
+ lan743x_csr_write(adapter, INT_MOD_MAP0, 0x00008765);
+ lan743x_csr_write(adapter, INT_MOD_MAP1, 0x00004321);
+ lan743x_csr_write(adapter, INT_MOD_MAP2, 0x00FFFFFF);
+ } else if (!(adapter->csr.flags & LAN743X_CSR_FLAG_IS_A0)) {
lan743x_csr_write(adapter, INT_MOD_CFG0, LAN743X_INT_MOD);
lan743x_csr_write(adapter, INT_MOD_CFG1, LAN743X_INT_MOD);
lan743x_csr_write(adapter, INT_MOD_CFG2, LAN743X_INT_MOD);
@@ -646,7 +665,7 @@ static int lan743x_intr_open(struct lan743x_adapter *adapter)
LAN743X_VECTOR_FLAG_SOURCE_STATUS_AUTO_CLEAR;
}
for (index = 0; index < number_of_rx_vectors; index++) {
- int vector = index + 1 + LAN743X_USED_TX_CHANNELS;
+ int vector = index + 1 + max_used_tx_channels;
u32 int_bit = INT_BIT_DMA_RX_(index);
/* map RX interrupt to vector */
@@ -2733,9 +2752,11 @@ static int lan743x_hardware_init(struct lan743x_adapter *adapter,
if (adapter->is_pcia0x1) {
adapter->max_tx_channels = PCIA0X1_MAX_TX_CHANNELS;
adapter->max_used_tx_channels = PCIA0X1_USED_TX_CHANNELS;
+ adapter->max_vector_counter = PCIA0X1_MAX_VECTOR_COUNT;
} else {
adapter->max_tx_channels = LAN743X_MAX_TX_CHANNELS;
adapter->max_used_tx_channels = LAN743X_USED_TX_CHANNELS;
+ adapter->max_vector_counter = LAN743X_MAX_VECTOR_COUNT;
}
adapter->intr.irq = adapter->pdev->irq;
diff --git a/drivers/net/ethernet/microchip/lan743x_main.h b/drivers/net/ethernet/microchip/lan743x_main.h
index d7b1b5e44518..9c6bb8be2013 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.h
+++ b/drivers/net/ethernet/microchip/lan743x_main.h
@@ -265,6 +265,8 @@
#define INT_MOD_CFG5 (0x7D4)
#define INT_MOD_CFG6 (0x7D8)
#define INT_MOD_CFG7 (0x7DC)
+#define INT_MOD_CFG8 (0x7E0)
+#define INT_MOD_CFG9 (0x7E4)
#define PTP_CMD_CTL (0x0A00)
#define PTP_CMD_CTL_PTP_CLK_STP_NSEC_ BIT(6)
@@ -618,13 +620,14 @@ struct lan743x_vector {
};
#define LAN743X_MAX_VECTOR_COUNT (8)
+#define PCIA0X1_MAX_VECTOR_COUNT (16)
struct lan743x_intr {
int flags;
unsigned int irq;
- struct lan743x_vector vector_list[LAN743X_MAX_VECTOR_COUNT];
+ struct lan743x_vector vector_list[PCIA0X1_MAX_VECTOR_COUNT];
int number_of_vectors;
bool using_vectors;
@@ -737,6 +740,7 @@ struct lan743x_adapter {
bool is_pcia0x1;
u8 max_tx_channels;
u8 max_used_tx_channels;
+ u8 max_vector_counter;
#define LAN743X_ADAPTER_FLAG_OTP BIT(0)
u32 flags;
--
2.25.1
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