Linux-libre 4.2-gnu

10 files changed, 85 insertions, 110 deletions

diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
index 4b9d9f88a..c6dc96834 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
@@ -124,7 +124,7 @@ static void fm10k_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 {
 	struct fm10k_intfc *interface = netdev_priv(dev);
 	char *p = (char *)data;
-	int i;
+	unsigned int i;
 
 	switch (stringset) {
 	case ETH_SS_TEST:
@@ -143,12 +143,13 @@ static void fm10k_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 			p += ETH_GSTRING_LEN;
 		}
 
-		if (interface->hw.mac.type != fm10k_mac_vf)
+		if (interface->hw.mac.type != fm10k_mac_vf) {
 			for (i = 0; i < FM10K_PF_STATS_LEN; i++) {
 				memcpy(p, fm10k_gstrings_pf_stats[i].stat_string,
 				       ETH_GSTRING_LEN);
 				p += ETH_GSTRING_LEN;
 			}
+		}
 
 		for (i = 0; i < interface->hw.mac.max_queues; i++) {
 			sprintf(p, "tx_queue_%u_packets", i);
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_iov.c b/drivers/net/ethernet/intel/fm10k/fm10k_iov.c
index 5b08e6284..94571e6e7 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_iov.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_iov.c
@@ -400,11 +400,31 @@ int fm10k_iov_configure(struct pci_dev *pdev, int num_vfs)
 	return num_vfs;
 }
 
+static inline void fm10k_reset_vf_info(struct fm10k_intfc *interface,
+				       struct fm10k_vf_info *vf_info)
+{
+	struct fm10k_hw *hw = &interface->hw;
+
+	/* assigning the MAC address will send a mailbox message */
+	fm10k_mbx_lock(interface);
+
+	/* disable LPORT for this VF which clears switch rules */
+	hw->iov.ops.reset_lport(hw, vf_info);
+
+	/* assign new MAC+VLAN for this VF */
+	hw->iov.ops.assign_default_mac_vlan(hw, vf_info);
+
+	/* re-enable the LPORT for this VF */
+	hw->iov.ops.set_lport(hw, vf_info, vf_info->vf_idx,
+			      FM10K_VF_FLAG_MULTI_CAPABLE);
+
+	fm10k_mbx_unlock(interface);
+}
+
 int fm10k_ndo_set_vf_mac(struct net_device *netdev, int vf_idx, u8 *mac)
 {
 	struct fm10k_intfc *interface = netdev_priv(netdev);
 	struct fm10k_iov_data *iov_data = interface->iov_data;
-	struct fm10k_hw *hw = &interface->hw;
 	struct fm10k_vf_info *vf_info;
 
 	/* verify SR-IOV is active and that vf idx is valid */
@@ -419,13 +439,7 @@ int fm10k_ndo_set_vf_mac(struct net_device *netdev, int vf_idx, u8 *mac)
 	vf_info = &iov_data->vf_info[vf_idx];
 	ether_addr_copy(vf_info->mac, mac);
 
-	/* assigning the MAC will send a mailbox message so lock is needed */
-	fm10k_mbx_lock(interface);
-
-	/* assign MAC address to VF */
-	hw->iov.ops.assign_default_mac_vlan(hw, vf_info);
-
-	fm10k_mbx_unlock(interface);
+	fm10k_reset_vf_info(interface, vf_info);
 
 	return 0;
 }
@@ -455,16 +469,10 @@ int fm10k_ndo_set_vf_vlan(struct net_device *netdev, int vf_idx, u16 vid,
 	/* record default VLAN ID for VF */
 	vf_info->pf_vid = vid;
 
-	/* assigning the VLAN will send a mailbox message so lock is needed */
-	fm10k_mbx_lock(interface);
-
 	/* Clear the VLAN table for the VF */
 	hw->mac.ops.update_vlan(hw, FM10K_VLAN_ALL, vf_info->vsi, false);
 
-	/* Update VF assignment and trigger reset */
-	hw->iov.ops.assign_default_mac_vlan(hw, vf_info);
-
-	fm10k_mbx_unlock(interface);
+	fm10k_reset_vf_info(interface, vf_info);
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_main.c b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
index c754b2027..b5b292510 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_main.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
@@ -216,7 +216,7 @@ static void fm10k_reuse_rx_page(struct fm10k_ring *rx_ring,
 
 static inline bool fm10k_page_is_reserved(struct page *page)
 {
-	return (page_to_nid(page) != numa_mem_id()) || page->pfmemalloc;
+	return (page_to_nid(page) != numa_mem_id()) || page_is_pfmemalloc(page);
 }
 
 static bool fm10k_can_reuse_rx_page(struct fm10k_rx_buffer *rx_buffer,
@@ -269,16 +269,19 @@ static bool fm10k_add_rx_frag(struct fm10k_rx_buffer *rx_buffer,
 			      struct sk_buff *skb)
 {
 	struct page *page = rx_buffer->page;
+	unsigned char *va = page_address(page) + rx_buffer->page_offset;
 	unsigned int size = le16_to_cpu(rx_desc->w.length);
 #if (PAGE_SIZE < 8192)
 	unsigned int truesize = FM10K_RX_BUFSZ;
 #else
-	unsigned int truesize = ALIGN(size, L1_CACHE_BYTES);
+	unsigned int truesize = SKB_DATA_ALIGN(size);
 #endif
+	unsigned int pull_len;
 
-	if ((size <= FM10K_RX_HDR_LEN) && !skb_is_nonlinear(skb)) {
-		unsigned char *va = page_address(page) + rx_buffer->page_offset;
+	if (unlikely(skb_is_nonlinear(skb)))
+		goto add_tail_frag;
 
+	if (likely(size <= FM10K_RX_HDR_LEN)) {
 		memcpy(__skb_put(skb, size), va, ALIGN(size, sizeof(long)));
 
 		/* page is not reserved, we can reuse buffer as-is */
@@ -290,8 +293,21 @@ static bool fm10k_add_rx_frag(struct fm10k_rx_buffer *rx_buffer,
 		return false;
 	}
 
+	/* we need the header to contain the greater of either ETH_HLEN or
+	 * 60 bytes if the skb->len is less than 60 for skb_pad.
+	 */
+	pull_len = eth_get_headlen(va, FM10K_RX_HDR_LEN);
+
+	/* align pull length to size of long to optimize memcpy performance */
+	memcpy(__skb_put(skb, pull_len), va, ALIGN(pull_len, sizeof(long)));
+
+	/* update all of the pointers */
+	va += pull_len;
+	size -= pull_len;
+
+add_tail_frag:
 	skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page,
-			rx_buffer->page_offset, size, truesize);
+			(unsigned long)va & ~PAGE_MASK, size, truesize);
 
 	return fm10k_can_reuse_rx_page(rx_buffer, page, truesize);
 }
@@ -518,44 +534,6 @@ static bool fm10k_is_non_eop(struct fm10k_ring *rx_ring,
 }
 
 /**
- * fm10k_pull_tail - fm10k specific version of skb_pull_tail
- * @skb: pointer to current skb being adjusted
- *
- * This function is an fm10k specific version of __pskb_pull_tail.  The
- * main difference between this version and the original function is that
- * this function can make several assumptions about the state of things
- * that allow for significant optimizations versus the standard function.
- * As a result we can do things like drop a frag and maintain an accurate
- * truesize for the skb.
- */
-static void fm10k_pull_tail(struct sk_buff *skb)
-{
-	struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0];
-	unsigned char *va;
-	unsigned int pull_len;
-
-	/* it is valid to use page_address instead of kmap since we are
-	 * working with pages allocated out of the lomem pool per
-	 * alloc_page(GFP_ATOMIC)
-	 */
-	va = skb_frag_address(frag);
-
-	/* we need the header to contain the greater of either ETH_HLEN or
-	 * 60 bytes if the skb->len is less than 60 for skb_pad.
-	 */
-	pull_len = eth_get_headlen(va, FM10K_RX_HDR_LEN);
-
-	/* align pull length to size of long to optimize memcpy performance */
-	skb_copy_to_linear_data(skb, va, ALIGN(pull_len, sizeof(long)));
-
-	/* update all of the pointers */
-	skb_frag_size_sub(frag, pull_len);
-	frag->page_offset += pull_len;
-	skb->data_len -= pull_len;
-	skb->tail += pull_len;
-}
-
-/**
  * fm10k_cleanup_headers - Correct corrupted or empty headers
  * @rx_ring: rx descriptor ring packet is being transacted on
  * @rx_desc: pointer to the EOP Rx descriptor
@@ -580,10 +558,6 @@ static bool fm10k_cleanup_headers(struct fm10k_ring *rx_ring,
 		return true;
 	}
 
-	/* place header in linear portion of buffer */
-	if (skb_is_nonlinear(skb))
-		fm10k_pull_tail(skb);
-
 	/* if eth_skb_pad returns an error the skb was freed */
 	if (eth_skb_pad(skb))
 		return true;
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_mbx.c b/drivers/net/ethernet/intel/fm10k/fm10k_mbx.c
index 1b2738380..1a4b52637 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_mbx.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_mbx.c
@@ -1259,16 +1259,11 @@ static s32 fm10k_mbx_process_error(struct fm10k_hw *hw,
 				   struct fm10k_mbx_info *mbx)
 {
 	const u32 *hdr = &mbx->mbx_hdr;
-	s32 err_no;
 	u16 head;
 
 	/* we will need to pull all of the fields for verification */
 	head = FM10K_MSG_HDR_FIELD_GET(*hdr, HEAD);
 
-	/* we only have lower 10 bits of error number so add upper bits */
-	err_no = FM10K_MSG_HDR_FIELD_GET(*hdr, ERR_NO);
-	err_no |= ~FM10K_MSG_HDR_MASK(ERR_NO);
-
 	switch (mbx->state) {
 	case FM10K_STATE_OPEN:
 	case FM10K_STATE_DISCONNECT:
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
index 2f4f41b7e..99228bf46 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
@@ -923,18 +923,12 @@ static int __fm10k_mc_sync(struct net_device *dev,
 	struct fm10k_intfc *interface = netdev_priv(dev);
 	struct fm10k_hw *hw = &interface->hw;
 	u16 vid, glort = interface->glort;
-	s32 err;
-
-	if (!is_multicast_ether_addr(addr))
-		return -EADDRNOTAVAIL;
 
 	/* update table with current entries */
 	for (vid = hw->mac.default_vid ? fm10k_find_next_vlan(interface, 0) : 0;
 	     vid < VLAN_N_VID;
 	     vid = fm10k_find_next_vlan(interface, vid)) {
-		err = hw->mac.ops.update_mc_addr(hw, glort, addr, vid, sync);
-		if (err)
-			return err;
+		hw->mac.ops.update_mc_addr(hw, glort, addr, vid, sync);
 	}
 
 	return 0;
@@ -1339,8 +1333,7 @@ static void fm10k_dfwd_del_station(struct net_device *dev, void *priv)
 	dglort.rss_l = fls(interface->ring_feature[RING_F_RSS].mask);
 	dglort.pc_l = fls(interface->ring_feature[RING_F_QOS].mask);
 	dglort.glort = interface->glort;
-	if (l2_accel)
-		dglort.shared_l = fls(l2_accel->size);
+	dglort.shared_l = fls(l2_accel->size);
 	hw->mac.ops.configure_dglort_map(hw, &dglort);
 
 	/* If table is empty remove it */
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
index df9fda38b..ce53ff25f 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
@@ -1559,6 +1559,7 @@ void fm10k_down(struct fm10k_intfc *interface)
 
 	/* free any buffers still on the rings */
 	fm10k_clean_all_tx_rings(interface);
+	fm10k_clean_all_rx_rings(interface);
 }
 
 /**
@@ -1740,30 +1741,18 @@ static int fm10k_probe(struct pci_dev *pdev,
 	struct fm10k_intfc *interface;
 	struct fm10k_hw *hw;
 	int err;
-	u64 dma_mask;
 
 	err = pci_enable_device_mem(pdev);
 	if (err)
 		return err;
 
-	/* By default fm10k only supports a 48 bit DMA mask */
-	dma_mask = DMA_BIT_MASK(48) | dma_get_required_mask(&pdev->dev);
-
-	if ((dma_mask <= DMA_BIT_MASK(32)) ||
-	    dma_set_mask_and_coherent(&pdev->dev, dma_mask)) {
-		dma_mask &= DMA_BIT_MASK(32);
-
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(48));
+	if (err)
 		err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
-		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
-		if (err) {
-			err = dma_set_coherent_mask(&pdev->dev,
-						    DMA_BIT_MASK(32));
-			if (err) {
-				dev_err(&pdev->dev,
-					"No usable DMA configuration, aborting\n");
-				goto err_dma;
-			}
-		}
+	if (err) {
+		dev_err(&pdev->dev,
+			"DMA configuration failed: %d\n", err);
+		goto err_dma;
 	}
 
 	err = pci_request_selected_regions(pdev,
@@ -1772,7 +1761,7 @@ static int fm10k_probe(struct pci_dev *pdev,
 					   fm10k_driver_name);
 	if (err) {
 		dev_err(&pdev->dev,
-			"pci_request_selected_regions failed 0x%x\n", err);
+			"pci_request_selected_regions failed: %d\n", err);
 		goto err_pci_reg;
 	}
 
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pf.c b/drivers/net/ethernet/intel/fm10k/fm10k_pf.c
index 891e21874..3ca0233b3 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_pf.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_pf.c
@@ -1046,6 +1046,12 @@ static s32 fm10k_iov_reset_resources_pf(struct fm10k_hw *hw,
 		fm10k_write_reg(hw, FM10K_RQMAP(qmap_idx + i), vf_q_idx + i);
 	}
 
+	/* repeat the first ring for all the remaining VF rings */
+	for (i = queues_per_pool; i < qmap_stride; i++) {
+		fm10k_write_reg(hw, FM10K_TQMAP(qmap_idx + i), vf_q_idx);
+		fm10k_write_reg(hw, FM10K_RQMAP(qmap_idx + i), vf_q_idx);
+	}
+
 	return 0;
 }
 
@@ -1345,6 +1351,14 @@ s32 fm10k_iov_msg_lport_state_pf(struct fm10k_hw *hw, u32 **results,
 			err = fm10k_update_lport_state_pf(hw, vf_info->glort,
 							  1, false);
 
+		/* we need to clear VF_FLAG_ENABLED flags in order to ensure
+		 * that we actually re-enable the LPORT state below. Note that
+		 * this has no impact if the VF is already disabled, as the
+		 * flags are already cleared.
+		 */
+		if (!err)
+			vf_info->vf_flags = FM10K_VF_FLAG_CAPABLE(vf_info);
+
 		/* when enabling the port we should reset the rate limiters */
 		hw->iov.ops.configure_tc(hw, vf_info->vf_idx, vf_info->rate);
 
@@ -1786,8 +1800,8 @@ static s32 fm10k_adjust_systime_pf(struct fm10k_hw *hw, s32 ppb)
 	if (systime_adjust > FM10K_SW_SYSTIME_ADJUST_MASK)
 		return FM10K_ERR_PARAM;
 
-	if (ppb < 0)
-		systime_adjust |= FM10K_SW_SYSTIME_ADJUST_DIR_NEGATIVE;
+	if (ppb > 0)
+		systime_adjust |= FM10K_SW_SYSTIME_ADJUST_DIR_POSITIVE;
 
 	fm10k_write_sw_reg(hw, FM10K_SW_SYSTIME_ADJUST, (u32)systime_adjust);
 
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pf.h b/drivers/net/ethernet/intel/fm10k/fm10k_pf.h
index 7ab1db4ff..40a0dbc62 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_pf.h
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_pf.h
@@ -81,26 +81,26 @@ struct fm10k_mac_update {
 	__le16	glort;
 	u8	flags;
 	u8	action;
-};
+} __packed;
 
 struct fm10k_global_table_data {
 	__le32	used;
 	__le32	avail;
-};
+} __packed;
 
 struct fm10k_swapi_error {
 	__le32				status;
 	struct fm10k_global_table_data	mac;
 	struct fm10k_global_table_data	nexthop;
 	struct fm10k_global_table_data	ffu;
-};
+} __packed;
 
 struct fm10k_swapi_1588_timestamp {
 	__le64 egress;
 	__le64 ingress;
 	__le16 dglort;
 	__le16 sglort;
-};
+} __packed;
 
 s32 fm10k_msg_lport_map_pf(struct fm10k_hw *, u32 **, struct fm10k_mbx_info *);
 extern const struct fm10k_tlv_attr fm10k_lport_map_msg_attr[];
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_ptp.c b/drivers/net/ethernet/intel/fm10k/fm10k_ptp.c
index 9043633c3..b4945e8ab 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_ptp.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_ptp.c
@@ -70,16 +70,16 @@ void fm10k_ts_tx_enqueue(struct fm10k_intfc *interface, struct sk_buff *skb)
 	 * if none are present then insert skb in tail of list
 	 */
 	skb = fm10k_ts_tx_skb(interface, FM10K_CB(clone)->fi.w.dglort);
-	if (!skb)
+	if (!skb) {
+		skb_shinfo(clone)->tx_flags |= SKBTX_IN_PROGRESS;
 		__skb_queue_tail(list, clone);
+	}
 
 	spin_unlock_irqrestore(&list->lock, flags);
 
 	/* if list is already has one then we just free the clone */
 	if (skb)
-		kfree_skb(skb);
-	else
-		skb_shinfo(clone)->tx_flags |= SKBTX_IN_PROGRESS;
+		dev_kfree_skb(clone);
 }
 
 void fm10k_ts_tx_hwtstamp(struct fm10k_intfc *interface, __le16 dglort,
@@ -103,9 +103,10 @@ void fm10k_ts_tx_hwtstamp(struct fm10k_intfc *interface, __le16 dglort,
 	if (!skb)
 		return;
 
-	/* timestamp the sk_buff and return it to the socket */
+	/* timestamp the sk_buff and free out copy */
 	fm10k_systime_to_hwtstamp(interface, &shhwtstamps, systime);
-	skb_complete_tx_timestamp(skb, &shhwtstamps);
+	skb_tstamp_tx(skb, &shhwtstamps);
+	dev_kfree_skb_any(skb);
 }
 
 void fm10k_ts_tx_subtask(struct fm10k_intfc *interface)
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_type.h b/drivers/net/ethernet/intel/fm10k/fm10k_type.h
index 4af96686c..2a17d82fa 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_type.h
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_type.h
@@ -369,7 +369,7 @@ struct fm10k_hw;
 /* Registers contained in BAR 4 for Switch management */
 #define FM10K_SW_SYSTIME_ADJUST	0x0224D
 #define FM10K_SW_SYSTIME_ADJUST_MASK		0x3FFFFFFF
-#define FM10K_SW_SYSTIME_ADJUST_DIR_NEGATIVE	0x80000000
+#define FM10K_SW_SYSTIME_ADJUST_DIR_POSITIVE	0x80000000
 #define FM10K_SW_SYSTIME_PULSE(_n)	((_n) + 0x02252)
 
 enum fm10k_int_source {