From 9370bb92b2d16684ee45cf24e879c93c509162da Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 19 Dec 2024 01:47:39 +0000
Subject: [PATCH] add wifi6 8852be driver
---
kernel/drivers/net/ethernet/chelsio/cxgb3/sge.c | 109 ++++++++++++++++++++++++++++++------------------------
1 files changed, 60 insertions(+), 49 deletions(-)
diff --git a/kernel/drivers/net/ethernet/chelsio/cxgb3/sge.c b/kernel/drivers/net/ethernet/chelsio/cxgb3/sge.c
index 5c26d50..1cc3c51 100644
--- a/kernel/drivers/net/ethernet/chelsio/cxgb3/sge.c
+++ b/kernel/drivers/net/ethernet/chelsio/cxgb3/sge.c
@@ -372,7 +372,7 @@
/**
* free_rx_bufs - free the Rx buffers on an SGE free list
* @pdev: the PCI device associated with the adapter
- * @rxq: the SGE free list to clean up
+ * @q: the SGE free list to clean up
*
* Release the buffers on an SGE free-buffer Rx queue. HW fetching from
* this queue should be stopped before calling this function.
@@ -493,7 +493,7 @@
/**
* refill_fl - refill an SGE free-buffer list
- * @adapter: the adapter
+ * @adap: the adapter
* @q: the free-list to refill
* @n: the number of new buffers to allocate
* @gfp: the gfp flags for allocating new buffers
@@ -568,7 +568,7 @@
/**
* recycle_rx_buf - recycle a receive buffer
- * @adapter: the adapter
+ * @adap: the adapter
* @q: the SGE free list
* @idx: index of buffer to recycle
*
@@ -620,7 +620,7 @@
{
size_t len = nelem * elem_size;
void *s = NULL;
- void *p = dma_zalloc_coherent(&pdev->dev, len, phys, GFP_KERNEL);
+ void *p = dma_alloc_coherent(&pdev->dev, len, phys, GFP_KERNEL);
if (!p)
return NULL;
@@ -825,6 +825,7 @@
* get_packet_pg - return the next ingress packet buffer from a free list
* @adap: the adapter that received the packet
* @fl: the SGE free list holding the packet
+ * @q: the queue
* @len: the packet length including any SGE padding
* @drop_thres: # of remaining buffers before we start dropping packets
*
@@ -1173,6 +1174,7 @@
* @q: the Tx queue
* @ndesc: number of descriptors the packet will occupy
* @compl: the value of the COMPL bit to use
+ * @addr: address
*
* Generate a TX_PKT work request to send the supplied packet.
*/
@@ -1516,14 +1518,14 @@
/**
* restart_ctrlq - restart a suspended control queue
- * @qs: the queue set cotaining the control queue
+ * @t: pointer to the tasklet associated with this handler
*
* Resumes transmission on a suspended Tx control queue.
*/
-static void restart_ctrlq(unsigned long data)
+static void restart_ctrlq(struct tasklet_struct *t)
{
struct sk_buff *skb;
- struct sge_qset *qs = (struct sge_qset *)data;
+ struct sge_qset *qs = from_tasklet(qs, t, txq[TXQ_CTRL].qresume_tsk);
struct sge_txq *q = &qs->txq[TXQ_CTRL];
spin_lock(&q->lock);
@@ -1622,6 +1624,7 @@
* @pidx: index of the first Tx descriptor to write
* @gen: the generation value to use
* @ndesc: number of descriptors the packet will occupy
+ * @addr: the address
*
* Write an offload work request to send the supplied packet. The packet
* data already carry the work request with most fields populated.
@@ -1733,14 +1736,14 @@
/**
* restart_offloadq - restart a suspended offload queue
- * @qs: the queue set cotaining the offload queue
+ * @t: pointer to the tasklet associated with this handler
*
* Resumes transmission on a suspended Tx offload queue.
*/
-static void restart_offloadq(unsigned long data)
+static void restart_offloadq(struct tasklet_struct *t)
{
struct sk_buff *skb;
- struct sge_qset *qs = (struct sge_qset *)data;
+ struct sge_qset *qs = from_tasklet(qs, t, txq[TXQ_OFLD].qresume_tsk);
struct sge_txq *q = &qs->txq[TXQ_OFLD];
const struct port_info *pi = netdev_priv(qs->netdev);
struct adapter *adap = pi->adapter;
@@ -1883,7 +1886,7 @@
/**
* ofld_poll - NAPI handler for offload packets in interrupt mode
- * @dev: the network device doing the polling
+ * @napi: the network device doing the polling
* @budget: polling budget
*
* The NAPI handler for offload packets when a response queue is serviced
@@ -2007,7 +2010,7 @@
/**
* cxgb3_arp_process - process an ARP request probing a private IP address
- * @adapter: the adapter
+ * @pi: the port info
* @skb: the skbuff containing the ARP request
*
* Check if the ARP request is probing the private IP address
@@ -2069,7 +2072,8 @@
* @adap: the adapter
* @rq: the response queue that received the packet
* @skb: the packet
- * @pad: amount of padding at the start of the buffer
+ * @pad: padding
+ * @lro: large receive offload
*
* Process an ingress ethernet pakcet and deliver it to the stack.
* The padding is 2 if the packet was delivered in an Rx buffer and 0
@@ -2132,7 +2136,7 @@
struct port_info *pi = netdev_priv(qs->netdev);
struct sk_buff *skb = NULL;
struct cpl_rx_pkt *cpl;
- struct skb_frag_struct *rx_frag;
+ skb_frag_t *rx_frag;
int nr_frags;
int offset = 0;
@@ -2182,7 +2186,7 @@
rx_frag += nr_frags;
__skb_frag_set_page(rx_frag, sd->pg_chunk.page);
- rx_frag->page_offset = sd->pg_chunk.offset + offset;
+ skb_frag_off_set(rx_frag, sd->pg_chunk.offset + offset);
skb_frag_size_set(rx_frag, len);
skb->len += len;
@@ -2239,7 +2243,7 @@
/**
* check_ring_db - check if we need to ring any doorbells
- * @adapter: the adapter
+ * @adap: the adapter
* @qs: the queue set whose Tx queues are to be examined
* @sleeping: indicates which Tx queue sent GTS
*
@@ -2372,16 +2376,13 @@
if (fl->use_pages) {
void *addr = fl->sdesc[fl->cidx].pg_chunk.va;
- prefetch(addr);
-#if L1_CACHE_BYTES < 128
- prefetch(addr + L1_CACHE_BYTES);
-#endif
+ net_prefetch(addr);
__refill_fl(adap, fl);
if (lro > 0) {
lro_add_page(adap, qs, fl,
G_RSPD_LEN(len),
flags & F_RSPD_EOP);
- goto next_fl;
+ goto next_fl;
}
skb = get_packet_pg(adap, fl, q,
@@ -2902,7 +2903,7 @@
/**
* sge_timer_tx - perform periodic maintenance of an SGE qset
- * @data: the SGE queue set to maintain
+ * @t: a timer list containing the SGE queue set to maintain
*
* Runs periodically from a timer to perform maintenance of an SGE queue
* set. It performs two tasks:
@@ -2946,7 +2947,7 @@
/**
* sge_timer_rx - perform periodic maintenance of an SGE qset
- * @data: the SGE queue set to maintain
+ * @t: the timer list containing the SGE queue set to maintain
*
* a) Replenishes Rx queues that have run out due to memory shortage.
* Normally new Rx buffers are added when existing ones are consumed but
@@ -3024,7 +3025,7 @@
* @irq_vec_idx: the IRQ vector index for response queue interrupts
* @p: configuration parameters for this queue set
* @ntxq: number of Tx queues for the queue set
- * @netdev: net device associated with this queue set
+ * @dev: net device associated with this queue set
* @netdevq: net device TX queue associated with this queue set
*
* Allocate resources and initialize an SGE queue set. A queue set
@@ -3084,10 +3085,8 @@
skb_queue_head_init(&q->txq[i].sendq);
}
- tasklet_init(&q->txq[TXQ_OFLD].qresume_tsk, restart_offloadq,
- (unsigned long)q);
- tasklet_init(&q->txq[TXQ_CTRL].qresume_tsk, restart_ctrlq,
- (unsigned long)q);
+ tasklet_setup(&q->txq[TXQ_OFLD].qresume_tsk, restart_offloadq);
+ tasklet_setup(&q->txq[TXQ_CTRL].qresume_tsk, restart_ctrlq);
q->fl[0].gen = q->fl[1].gen = 1;
q->fl[0].size = p->fl_size;
@@ -3215,11 +3214,13 @@
for (i = 0; i < SGE_QSETS; ++i) {
struct sge_qset *q = &adap->sge.qs[i];
- if (q->tx_reclaim_timer.function)
- mod_timer(&q->tx_reclaim_timer, jiffies + TX_RECLAIM_PERIOD);
+ if (q->tx_reclaim_timer.function)
+ mod_timer(&q->tx_reclaim_timer,
+ jiffies + TX_RECLAIM_PERIOD);
- if (q->rx_reclaim_timer.function)
- mod_timer(&q->rx_reclaim_timer, jiffies + RX_RECLAIM_PERIOD);
+ if (q->rx_reclaim_timer.function)
+ mod_timer(&q->rx_reclaim_timer,
+ jiffies + RX_RECLAIM_PERIOD);
}
}
@@ -3270,30 +3271,40 @@
}
/**
- * t3_sge_stop - disable SGE operation
+ * t3_sge_stop_dma - Disable SGE DMA engine operation
* @adap: the adapter
*
- * Disables the DMA engine. This can be called in emeregencies (e.g.,
- * from error interrupts) or from normal process context. In the latter
- * case it also disables any pending queue restart tasklets. Note that
- * if it is called in interrupt context it cannot disable the restart
- * tasklets as it cannot wait, however the tasklets will have no effect
- * since the doorbells are disabled and the driver will call this again
- * later from process context, at which time the tasklets will be stopped
- * if they are still running.
+ * Can be invoked from interrupt context e.g. error handler.
+ *
+ * Note that this function cannot disable the restart of tasklets as
+ * it cannot wait if called from interrupt context, however the
+ * tasklets will have no effect since the doorbells are disabled. The
+ * driver will call tg3_sge_stop() later from process context, at
+ * which time the tasklets will be stopped if they are still running.
+ */
+void t3_sge_stop_dma(struct adapter *adap)
+{
+ t3_set_reg_field(adap, A_SG_CONTROL, F_GLOBALENABLE, 0);
+}
+
+/**
+ * t3_sge_stop - disable SGE operation completly
+ * @adap: the adapter
+ *
+ * Called from process context. Disables the DMA engine and any
+ * pending queue restart tasklets.
*/
void t3_sge_stop(struct adapter *adap)
{
- t3_set_reg_field(adap, A_SG_CONTROL, F_GLOBALENABLE, 0);
- if (!in_interrupt()) {
- int i;
+ int i;
- for (i = 0; i < SGE_QSETS; ++i) {
- struct sge_qset *qs = &adap->sge.qs[i];
+ t3_sge_stop_dma(adap);
- tasklet_kill(&qs->txq[TXQ_OFLD].qresume_tsk);
- tasklet_kill(&qs->txq[TXQ_CTRL].qresume_tsk);
- }
+ for (i = 0; i < SGE_QSETS; ++i) {
+ struct sge_qset *qs = &adap->sge.qs[i];
+
+ tasklet_kill(&qs->txq[TXQ_OFLD].qresume_tsk);
+ tasklet_kill(&qs->txq[TXQ_CTRL].qresume_tsk);
}
}
--
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