aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--target/linux/mpc85xx/patches-3.10/200-fix_gianfar_napi_poll.patch109
-rw-r--r--target/linux/mpc85xx/patches-3.10/200-gianfar_napi_poll_revert.patch162
2 files changed, 109 insertions, 162 deletions
diff --git a/target/linux/mpc85xx/patches-3.10/200-fix_gianfar_napi_poll.patch b/target/linux/mpc85xx/patches-3.10/200-fix_gianfar_napi_poll.patch
new file mode 100644
index 0000000000..a1877be921
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.10/200-fix_gianfar_napi_poll.patch
@@ -0,0 +1,109 @@
+--- a/drivers/net/ethernet/freescale/gianfar.c
++++ b/drivers/net/ethernet/freescale/gianfar.c
+@@ -2835,7 +2835,7 @@ static int gfar_poll(struct napi_struct
+ struct gfar_priv_rx_q *rx_queue = NULL;
+ int work_done = 0, work_done_per_q = 0;
+ int i, budget_per_q = 0;
+- int has_tx_work;
++ int has_tx_work = 0;
+ unsigned long rstat_rxf;
+ int num_act_queues;
+
+@@ -2850,62 +2850,48 @@ static int gfar_poll(struct napi_struct
+ if (num_act_queues)
+ budget_per_q = budget/num_act_queues;
+
+- while (1) {
+- has_tx_work = 0;
+- for_each_set_bit(i, &gfargrp->tx_bit_map, priv->num_tx_queues) {
+- tx_queue = priv->tx_queue[i];
+- /* run Tx cleanup to completion */
+- if (tx_queue->tx_skbuff[tx_queue->skb_dirtytx]) {
+- gfar_clean_tx_ring(tx_queue);
+- has_tx_work = 1;
+- }
+- }
+-
+- for_each_set_bit(i, &gfargrp->rx_bit_map, priv->num_rx_queues) {
+- /* skip queue if not active */
+- if (!(rstat_rxf & (RSTAT_CLEAR_RXF0 >> i)))
+- continue;
+-
+- rx_queue = priv->rx_queue[i];
+- work_done_per_q =
+- gfar_clean_rx_ring(rx_queue, budget_per_q);
+- work_done += work_done_per_q;
+-
+- /* finished processing this queue */
+- if (work_done_per_q < budget_per_q) {
+- /* clear active queue hw indication */
+- gfar_write(&regs->rstat,
+- RSTAT_CLEAR_RXF0 >> i);
+- rstat_rxf &= ~(RSTAT_CLEAR_RXF0 >> i);
+- num_act_queues--;
+-
+- if (!num_act_queues)
+- break;
+- /* recompute budget per Rx queue */
+- budget_per_q =
+- (budget - work_done) / num_act_queues;
+- }
++ for_each_set_bit(i, &gfargrp->tx_bit_map, priv->num_tx_queues) {
++ tx_queue = priv->tx_queue[i];
++ /* run Tx cleanup to completion */
++ if (tx_queue->tx_skbuff[tx_queue->skb_dirtytx]) {
++ gfar_clean_tx_ring(tx_queue);
++ has_tx_work = 1;
+ }
++ }
+
+- if (work_done >= budget)
+- break;
++ for_each_set_bit(i, &gfargrp->rx_bit_map, priv->num_rx_queues) {
++ /* skip queue if not active */
++ if (!(rstat_rxf & (RSTAT_CLEAR_RXF0 >> i)))
++ continue;
++
++ rx_queue = priv->rx_queue[i];
++ work_done_per_q = gfar_clean_rx_ring(rx_queue, budget_per_q);
++ work_done += work_done_per_q;
++
++ /* finished processing this queue */
++ if (work_done_per_q < budget_per_q) {
++ /* clear active queue hw indication */
++ gfar_write(&regs->rstat, RSTAT_CLEAR_RXF0 >> i);
++ num_act_queues--;
+
+- if (!num_act_queues && !has_tx_work) {
++ if (!num_act_queues)
++ break;
++ }
++ }
+
+- napi_complete(napi);
++ if (!num_act_queues && !has_tx_work) {
++ napi_complete(napi);
+
+- /* Clear the halt bit in RSTAT */
+- gfar_write(&regs->rstat, gfargrp->rstat);
++ /* Clear the halt bit in RSTAT */
++ gfar_write(&regs->rstat, gfargrp->rstat);
+
+- gfar_write(&regs->imask, IMASK_DEFAULT);
++ gfar_write(&regs->imask, IMASK_DEFAULT);
+
+- /* If we are coalescing interrupts, update the timer
+- * Otherwise, clear it
+- */
+- gfar_configure_coalescing(priv, gfargrp->rx_bit_map,
+- gfargrp->tx_bit_map);
+- break;
+- }
++ /* If we are coalescing interrupts, update the timer
++ * Otherwise, clear it
++ */
++ gfar_configure_coalescing(priv, gfargrp->rx_bit_map,
++ gfargrp->tx_bit_map);
+ }
+
+ return work_done;
diff --git a/target/linux/mpc85xx/patches-3.10/200-gianfar_napi_poll_revert.patch b/target/linux/mpc85xx/patches-3.10/200-gianfar_napi_poll_revert.patch
deleted file mode 100644
index 7b0e6c9ef3..0000000000
--- a/target/linux/mpc85xx/patches-3.10/200-gianfar_napi_poll_revert.patch
+++ /dev/null
@@ -1,162 +0,0 @@
---- a/drivers/net/ethernet/freescale/gianfar.c
-+++ b/drivers/net/ethernet/freescale/gianfar.c
-@@ -132,7 +132,7 @@ static int gfar_poll(struct napi_struct
- static void gfar_netpoll(struct net_device *dev);
- #endif
- int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit);
--static void gfar_clean_tx_ring(struct gfar_priv_tx_q *tx_queue);
-+static int gfar_clean_tx_ring(struct gfar_priv_tx_q *tx_queue);
- static void gfar_process_frame(struct net_device *dev, struct sk_buff *skb,
- int amount_pull, struct napi_struct *napi);
- void gfar_halt(struct net_device *dev);
-@@ -2475,7 +2475,7 @@ static void gfar_align_skb(struct sk_buf
- }
-
- /* Interrupt Handler for Transmit complete */
--static void gfar_clean_tx_ring(struct gfar_priv_tx_q *tx_queue)
-+static int gfar_clean_tx_ring(struct gfar_priv_tx_q *tx_queue)
- {
- struct net_device *dev = tx_queue->dev;
- struct netdev_queue *txq;
-@@ -2575,6 +2575,8 @@ static void gfar_clean_tx_ring(struct gf
- tx_queue->dirty_tx = bdp;
-
- netdev_tx_completed_queue(txq, howmany, bytes_sent);
-+
-+ return howmany;
- }
-
- static void gfar_schedule_cleanup(struct gfar_priv_grp *gfargrp)
-@@ -2833,82 +2835,62 @@ static int gfar_poll(struct napi_struct
- struct gfar __iomem *regs = gfargrp->regs;
- struct gfar_priv_tx_q *tx_queue = NULL;
- struct gfar_priv_rx_q *rx_queue = NULL;
-- int work_done = 0, work_done_per_q = 0;
-- int i, budget_per_q = 0;
-- int has_tx_work;
-- unsigned long rstat_rxf;
-- int num_act_queues;
-+ int rx_cleaned = 0, budget_per_queue = 0, rx_cleaned_per_queue = 0;
-+ int tx_cleaned = 0, i, left_over_budget = budget;
-+ unsigned long serviced_queues = 0;
-+ int num_queues = 0;
-+
-+ num_queues = gfargrp->num_rx_queues;
-+ budget_per_queue = budget/num_queues;
-
- /* Clear IEVENT, so interrupts aren't called again
- * because of the packets that have already arrived
- */
- gfar_write(&regs->ievent, IEVENT_RTX_MASK);
-
-- rstat_rxf = gfar_read(&regs->rstat) & RSTAT_RXF_MASK;
--
-- num_act_queues = bitmap_weight(&rstat_rxf, MAX_RX_QS);
-- if (num_act_queues)
-- budget_per_q = budget/num_act_queues;
--
-- while (1) {
-- has_tx_work = 0;
-- for_each_set_bit(i, &gfargrp->tx_bit_map, priv->num_tx_queues) {
-- tx_queue = priv->tx_queue[i];
-- /* run Tx cleanup to completion */
-- if (tx_queue->tx_skbuff[tx_queue->skb_dirtytx]) {
-- gfar_clean_tx_ring(tx_queue);
-- has_tx_work = 1;
-- }
-- }
-+ while (num_queues && left_over_budget) {
-+ budget_per_queue = left_over_budget/num_queues;
-+ left_over_budget = 0;
-
- for_each_set_bit(i, &gfargrp->rx_bit_map, priv->num_rx_queues) {
-- /* skip queue if not active */
-- if (!(rstat_rxf & (RSTAT_CLEAR_RXF0 >> i)))
-+ if (test_bit(i, &serviced_queues))
- continue;
--
- rx_queue = priv->rx_queue[i];
-- work_done_per_q =
-- gfar_clean_rx_ring(rx_queue, budget_per_q);
-- work_done += work_done_per_q;
--
-- /* finished processing this queue */
-- if (work_done_per_q < budget_per_q) {
-- /* clear active queue hw indication */
-- gfar_write(&regs->rstat,
-- RSTAT_CLEAR_RXF0 >> i);
-- rstat_rxf &= ~(RSTAT_CLEAR_RXF0 >> i);
-- num_act_queues--;
--
-- if (!num_act_queues)
-- break;
-- /* recompute budget per Rx queue */
-- budget_per_q =
-- (budget - work_done) / num_act_queues;
-+ tx_queue = priv->tx_queue[rx_queue->qindex];
-+
-+ tx_cleaned += gfar_clean_tx_ring(tx_queue);
-+ rx_cleaned_per_queue =
-+ gfar_clean_rx_ring(rx_queue, budget_per_queue);
-+ rx_cleaned += rx_cleaned_per_queue;
-+ if (rx_cleaned_per_queue < budget_per_queue) {
-+ left_over_budget = left_over_budget +
-+ (budget_per_queue -
-+ rx_cleaned_per_queue);
-+ set_bit(i, &serviced_queues);
-+ num_queues--;
- }
- }
-+ }
-
-- if (work_done >= budget)
-- break;
--
-- if (!num_act_queues && !has_tx_work) {
-+ if (tx_cleaned)
-+ return budget;
-
-- napi_complete(napi);
-+ if (rx_cleaned < budget) {
-+ napi_complete(napi);
-
-- /* Clear the halt bit in RSTAT */
-- gfar_write(&regs->rstat, gfargrp->rstat);
-+ /* Clear the halt bit in RSTAT */
-+ gfar_write(&regs->rstat, gfargrp->rstat);
-
-- gfar_write(&regs->imask, IMASK_DEFAULT);
-+ gfar_write(&regs->imask, IMASK_DEFAULT);
-
-- /* If we are coalescing interrupts, update the timer
-- * Otherwise, clear it
-- */
-- gfar_configure_coalescing(priv, gfargrp->rx_bit_map,
-- gfargrp->tx_bit_map);
-- break;
-- }
-+ /* If we are coalescing interrupts, update the timer
-+ * Otherwise, clear it
-+ */
-+ gfar_configure_coalescing(priv, gfargrp->rx_bit_map,
-+ gfargrp->tx_bit_map);
- }
-
-- return work_done;
-+ return rx_cleaned;
- }
-
- #ifdef CONFIG_NET_POLL_CONTROLLER
---- a/drivers/net/ethernet/freescale/gianfar.h
-+++ b/drivers/net/ethernet/freescale/gianfar.h
-@@ -291,9 +291,7 @@ extern const char gfar_driver_version[];
- #define RCTRL_PADDING(x) ((x << 16) & RCTRL_PAL_MASK)
-
-
--#define RSTAT_CLEAR_RHALT 0x00800000
--#define RSTAT_CLEAR_RXF0 0x00000080
--#define RSTAT_RXF_MASK 0x000000ff
-+#define RSTAT_CLEAR_RHALT 0x00800000
-
- #define TCTRL_IPCSEN 0x00004000
- #define TCTRL_TUCSEN 0x00002000
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 09:37:12 +0000