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sfc: Remove struct efx_special_buffer

Browse source 
The attributes index and entries are no longer needed, so use
struct efx_buffer instead.
next_buffer_table was also Siena specific.
Removed some checkpatch warnings.

Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Martin Habets 2023-07-27 11:41:21 +01:00 • committed by David S. Miller
parent a847431c5b
commit d73e77153b
8 changed files with 25 additions and 75 deletions
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2
drivers/net/ethernet/sfc/ef10.c
View file

@ -2209,7 +2209,7 @@ static int efx_ef10_tx_probe(struct efx_tx_queue *tx_queue)
/* low two bits of label are what we want for type */
BUILD_BUG_ON((EFX_TXQ_TYPE_OUTER_CSUM | EFX_TXQ_TYPE_INNER_CSUM) != 3);
tx_queue->type = tx_queue->label & 3;
return efx_nic_alloc_buffer(tx_queue->efx, &tx_queue->txd.buf,
return efx_nic_alloc_buffer(tx_queue->efx, &tx_queue->txd,
(tx_queue->ptr_mask + 1) *
sizeof(efx_qword_t),
GFP_KERNEL);

2
drivers/net/ethernet/sfc/ef100_nic.c
View file

@ -224,7 +224,7 @@ int efx_ef100_init_datapath_caps(struct efx_nic *efx)
static int ef100_ev_probe(struct efx_channel *channel)
{
/* Allocate an extra descriptor for the QMDA status completion entry */
return efx_nic_alloc_buffer(channel->efx, &channel->eventq.buf,
return efx_nic_alloc_buffer(channel->efx, &channel->eventq,
(channel->eventq_mask + 2) *
sizeof(efx_qword_t),
GFP_KERNEL);

6
drivers/net/ethernet/sfc/ef100_tx.c
View file

@ -23,7 +23,7 @@
int ef100_tx_probe(struct efx_tx_queue *tx_queue)
{
/* Allocate an extra descriptor for the QMDA status completion entry */
return efx_nic_alloc_buffer(tx_queue->efx, &tx_queue->txd.buf,
return efx_nic_alloc_buffer(tx_queue->efx, &tx_queue->txd,
(tx_queue->ptr_mask + 2) *
sizeof(efx_oword_t),
GFP_KERNEL);
@ -101,8 +101,8 @@ static bool ef100_tx_can_tso(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
static efx_oword_t *ef100_tx_desc(struct efx_tx_queue *tx_queue, unsigned int index)
{
if (likely(tx_queue->txd.buf.addr))
return ((efx_oword_t *)tx_queue->txd.buf.addr) + index;
if (likely(tx_queue->txd.addr))
return ((efx_oword_t *)tx_queue->txd.addr) + index;
else
return NULL;
}

30
drivers/net/ethernet/sfc/efx_channels.c
View file

@ -713,9 +713,6 @@ int efx_probe_channels(struct efx_nic *efx)
struct efx_channel *channel;
int rc;
/* Restart special buffer allocation */
efx->next_buffer_table = 0;
/* Probe channels in reverse, so that any 'extra' channels
* use the start of the buffer table. This allows the traffic
* channels to be resized without moving them or wasting the
@ -849,36 +846,14 @@ int efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries)
struct efx_channel *other_channel[EFX_MAX_CHANNELS], *channel,
*ptp_channel = efx_ptp_channel(efx);
struct efx_ptp_data *ptp_data = efx->ptp_data;
unsigned int i, next_buffer_table = 0;
u32 old_rxq_entries, old_txq_entries;
unsigned int i;
int rc, rc2;
rc = efx_check_disabled(efx);
if (rc)
return rc;
/* Not all channels should be reallocated. We must avoid
* reallocating their buffer table entries.
*/
efx_for_each_channel(channel, efx) {
struct efx_rx_queue *rx_queue;
struct efx_tx_queue *tx_queue;
if (channel->type->copy)
continue;
next_buffer_table = max(next_buffer_table,
channel->eventq.index +
channel->eventq.entries);
efx_for_each_channel_rx_queue(rx_queue, channel)
next_buffer_table = max(next_buffer_table,
rx_queue->rxd.index +
rx_queue->rxd.entries);
efx_for_each_channel_tx_queue(tx_queue, channel)
next_buffer_table = max(next_buffer_table,
tx_queue->txd.index +
tx_queue->txd.entries);
}
efx_device_detach_sync(efx);
efx_stop_all(efx);
efx_soft_disable_interrupts(efx);
@ -904,9 +879,6 @@ int efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries)
for (i = 0; i < efx->n_channels; i++)
swap(efx->channel[i], other_channel[i]);
/* Restart buffer table allocation */
efx->next_buffer_table = next_buffer_table;
for (i = 0; i < efx->n_channels; i++) {
channel = efx->channel[i];
if (!channel->type->copy)

24
drivers/net/ethernet/sfc/mcdi_functions.c
View file

@ -62,7 +62,7 @@ int efx_mcdi_alloc_vis(struct efx_nic *efx, unsigned int min_vis,
int efx_mcdi_ev_probe(struct efx_channel *channel)
{
return efx_nic_alloc_buffer(channel->efx, &channel->eventq.buf,
return efx_nic_alloc_buffer(channel->efx, &channel->eventq,
(channel->eventq_mask + 1) *
sizeof(efx_qword_t),
GFP_KERNEL);
@ -74,14 +74,14 @@ int efx_mcdi_ev_init(struct efx_channel *channel, bool v1_cut_thru, bool v2)
MC_CMD_INIT_EVQ_V2_IN_LEN(EFX_MAX_EVQ_SIZE * 8 /
EFX_BUF_SIZE));
MCDI_DECLARE_BUF(outbuf, MC_CMD_INIT_EVQ_V2_OUT_LEN);
size_t entries = channel->eventq.buf.len / EFX_BUF_SIZE;
size_t entries = channel->eventq.len / EFX_BUF_SIZE;
struct efx_nic *efx = channel->efx;
size_t inlen, outlen;
dma_addr_t dma_addr;
int rc, i;
/* Fill event queue with all ones (i.e. empty events) */
memset(channel->eventq.buf.addr, 0xff, channel->eventq.buf.len);
memset(channel->eventq.addr, 0xff, channel->eventq.len);
MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_SIZE, channel->eventq_mask + 1);
MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_INSTANCE, channel->channel);
@ -112,7 +112,7 @@ int efx_mcdi_ev_init(struct efx_channel *channel, bool v1_cut_thru, bool v2)
INIT_EVQ_IN_FLAG_CUT_THRU, v1_cut_thru);
}
dma_addr = channel->eventq.buf.dma_addr;
dma_addr = channel->eventq.dma_addr;
for (i = 0; i < entries; ++i) {
MCDI_SET_ARRAY_QWORD(inbuf, INIT_EVQ_IN_DMA_ADDR, i, dma_addr);
dma_addr += EFX_BUF_SIZE;
@ -134,7 +134,7 @@ int efx_mcdi_ev_init(struct efx_channel *channel, bool v1_cut_thru, bool v2)
void efx_mcdi_ev_remove(struct efx_channel *channel)
{
efx_nic_free_buffer(channel->efx, &channel->eventq.buf);
efx_nic_free_buffer(channel->efx, &channel->eventq);
}
void efx_mcdi_ev_fini(struct efx_channel *channel)
@ -166,7 +166,7 @@ int efx_mcdi_tx_init(struct efx_tx_queue *tx_queue)
EFX_BUF_SIZE));
bool csum_offload = tx_queue->type & EFX_TXQ_TYPE_OUTER_CSUM;
bool inner_csum = tx_queue->type & EFX_TXQ_TYPE_INNER_CSUM;
size_t entries = tx_queue->txd.buf.len / EFX_BUF_SIZE;
size_t entries = tx_queue->txd.len / EFX_BUF_SIZE;
struct efx_channel *channel = tx_queue->channel;
struct efx_nic *efx = tx_queue->efx;
dma_addr_t dma_addr;
@ -182,7 +182,7 @@ int efx_mcdi_tx_init(struct efx_tx_queue *tx_queue)
MCDI_SET_DWORD(inbuf, INIT_TXQ_IN_OWNER_ID, 0);
MCDI_SET_DWORD(inbuf, INIT_TXQ_IN_PORT_ID, efx->vport_id);
dma_addr = tx_queue->txd.buf.dma_addr;
dma_addr = tx_queue->txd.dma_addr;
netif_dbg(efx, hw, efx->net_dev, "pushing TXQ %d. %zu entries (%llx)\n",
tx_queue->queue, entries, (u64)dma_addr);
@ -240,7 +240,7 @@ fail:
void efx_mcdi_tx_remove(struct efx_tx_queue *tx_queue)
{
efx_nic_free_buffer(tx_queue->efx, &tx_queue->txd.buf);
efx_nic_free_buffer(tx_queue->efx, &tx_queue->txd);
}
void efx_mcdi_tx_fini(struct efx_tx_queue *tx_queue)
@ -269,7 +269,7 @@ fail:
int efx_mcdi_rx_probe(struct efx_rx_queue *rx_queue)
{
return efx_nic_alloc_buffer(rx_queue->efx, &rx_queue->rxd.buf,
return efx_nic_alloc_buffer(rx_queue->efx, &rx_queue->rxd,
(rx_queue->ptr_mask + 1) *
sizeof(efx_qword_t),
GFP_KERNEL);
@ -278,7 +278,7 @@ int efx_mcdi_rx_probe(struct efx_rx_queue *rx_queue)
void efx_mcdi_rx_init(struct efx_rx_queue *rx_queue)
{
struct efx_channel *channel = efx_rx_queue_channel(rx_queue);
size_t entries = rx_queue->rxd.buf.len / EFX_BUF_SIZE;
size_t entries = rx_queue->rxd.len / EFX_BUF_SIZE;
MCDI_DECLARE_BUF(inbuf, MC_CMD_INIT_RXQ_V4_IN_LEN);
struct efx_nic *efx = rx_queue->efx;
unsigned int buffer_size;
@ -306,7 +306,7 @@ void efx_mcdi_rx_init(struct efx_rx_queue *rx_queue)
MCDI_SET_DWORD(inbuf, INIT_RXQ_IN_PORT_ID, efx->vport_id);
MCDI_SET_DWORD(inbuf, INIT_RXQ_V4_IN_BUFFER_SIZE_BYTES, buffer_size);
dma_addr = rx_queue->rxd.buf.dma_addr;
dma_addr = rx_queue->rxd.dma_addr;
netif_dbg(efx, hw, efx->net_dev, "pushing RXQ %d. %zu entries (%llx)\n",
efx_rx_queue_index(rx_queue), entries, (u64)dma_addr);
@ -325,7 +325,7 @@ void efx_mcdi_rx_init(struct efx_rx_queue *rx_queue)
void efx_mcdi_rx_remove(struct efx_rx_queue *rx_queue)
{
efx_nic_free_buffer(rx_queue->efx, &rx_queue->rxd.buf);
efx_nic_free_buffer(rx_queue->efx, &rx_queue->rxd);
}
void efx_mcdi_rx_fini(struct efx_rx_queue *rx_queue)

28
drivers/net/ethernet/sfc/net_driver.h
View file

@ -122,26 +122,6 @@ struct efx_buffer {
unsigned int len;
};
/**
* struct efx_special_buffer - DMA buffer entered into buffer table
* @buf: Standard &struct efx_buffer
* @index: Buffer index within controller;s buffer table
* @entries: Number of buffer table entries
*
* The NIC has a buffer table that maps buffers of size %EFX_BUF_SIZE.
* Event and descriptor rings are addressed via one or more buffer
* table entries (and so can be physically non-contiguous, although we
* currently do not take advantage of that). On Falcon and Siena we
* have to take care of allocating and initialising the entries
* ourselves. On later hardware this is managed by the firmware and
* @index and @entries are left as 0.
*/
struct efx_special_buffer {
struct efx_buffer buf;
unsigned int index;
unsigned int entries;
};
/**
* struct efx_tx_buffer - buffer state for a TX descriptor
* @skb: When @flags & %EFX_TX_BUF_SKB, the associated socket buffer to be
@ -268,7 +248,7 @@ struct efx_tx_queue {
struct netdev_queue *core_txq;
struct efx_tx_buffer *buffer;
struct efx_buffer *cb_page;
struct efx_special_buffer txd;
struct efx_buffer txd;
unsigned int ptr_mask;
void __iomem *piobuf;
unsigned int piobuf_offset;
@ -397,7 +377,7 @@ struct efx_rx_queue {
struct efx_nic *efx;
int core_index;
struct efx_rx_buffer *buffer;
struct efx_special_buffer rxd;
struct efx_buffer rxd;
unsigned int ptr_mask;
bool refill_enabled;
bool flush_pending;
@ -513,7 +493,7 @@ struct efx_channel {
#ifdef CONFIG_NET_RX_BUSY_POLL
unsigned long busy_poll_state;
#endif
struct efx_special_buffer eventq;
struct efx_buffer eventq;
unsigned int eventq_mask;
unsigned int eventq_read_ptr;
int event_test_cpu;
@ -881,7 +861,6 @@ struct efx_mae;
* @tx_dc_base: Base qword address in SRAM of TX queue descriptor caches
* @rx_dc_base: Base qword address in SRAM of RX queue descriptor caches
* @sram_lim_qw: Qword address limit of SRAM
* @next_buffer_table: First available buffer table id
* @n_channels: Number of channels in use
* @n_rx_channels: Number of channels used for RX (= number of RX queues)
* @n_tx_channels: Number of channels used for TX
@ -1046,7 +1025,6 @@ struct efx_nic {
unsigned tx_dc_base;
unsigned rx_dc_base;
unsigned sram_lim_qw;
unsigned next_buffer_table;
unsigned int max_channels;
unsigned int max_vis;

6
drivers/net/ethernet/sfc/nic_common.h
View file

@ -32,7 +32,7 @@ static inline int efx_nic_rev(struct efx_nic *efx)
static inline efx_qword_t *efx_event(struct efx_channel *channel,
unsigned int index)
{
return ((efx_qword_t *) (channel->eventq.buf.addr)) +
return ((efx_qword_t *)(channel->eventq.addr)) +
(index & channel->eventq_mask);
}
@ -58,7 +58,7 @@ static inline int efx_event_present(efx_qword_t *event)
static inline efx_qword_t *
efx_tx_desc(struct efx_tx_queue *tx_queue, unsigned int index)
{
return ((efx_qword_t *) (tx_queue->txd.buf.addr)) + index;
return ((efx_qword_t *)(tx_queue->txd.addr)) + index;
}
/* Report whether this TX queue would be empty for the given write_count.
@ -98,7 +98,7 @@ static inline bool efx_nic_may_push_tx_desc(struct efx_tx_queue *tx_queue,
static inline efx_qword_t *
efx_rx_desc(struct efx_rx_queue *rx_queue, unsigned int index)
{
return ((efx_qword_t *) (rx_queue->rxd.buf.addr)) + index;
return ((efx_qword_t *)(rx_queue->rxd.addr)) + index;
}
/* Alignment of PCIe DMA boundaries (4KB) */

2
drivers/net/ethernet/sfc/tx_tso.c
View file

@ -85,7 +85,7 @@ static inline void prefetch_ptr(struct efx_tx_queue *tx_queue)
prefetch(ptr);
prefetch(ptr + 0x80);
ptr = (char *) (((efx_qword_t *)tx_queue->txd.buf.addr) + insert_ptr);
ptr = (char *)(((efx_qword_t *)tx_queue->txd.addr) + insert_ptr);
prefetch(ptr);
prefetch(ptr + 0x80);
}