[3/3] net/bnx2x: fix fastpath SB allocation for SRIOV

Message ID 20190703234313.10782-3-rmody@marvell.com (mailing list archive)
State Accepted, archived
Delegated to: Jerin Jacob
Headers
Series [1/3] net/bnx2x: fix read VF id |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation fail Compilation issues

Commit Message

Rasesh Mody July 3, 2019, 11:43 p.m. UTC
  For SRIOV, fastpath status blocks are not allocated resulting in
segfault. Separate out fastpath DMA allocation/free from rest of
memory allocation/free. It is now done as part of NIC load/unload.

Comment indentation changes in bnx2x_alloc_hsi_mem() and
bnx2x_free_hsi_mem() APIs.

Fixes: f0219d98defd ("net/bnx2x: fix interrupt flood")
Cc: stable@dpdk.org

Signed-off-by: Rasesh Mody <rmody@marvell.com>
---
 drivers/net/bnx2x/bnx2x.c | 117 +++++++++++++++++++-------------------
 1 file changed, 60 insertions(+), 57 deletions(-)
  

Patch

diff --git a/drivers/net/bnx2x/bnx2x.c b/drivers/net/bnx2x/bnx2x.c
index 877f5b73d..1a088269f 100644
--- a/drivers/net/bnx2x/bnx2x.c
+++ b/drivers/net/bnx2x/bnx2x.c
@@ -2120,6 +2120,9 @@  bnx2x_nic_unload(struct bnx2x_softc *sc, uint32_t unload_mode, uint8_t keep_link
 		bnx2x_free_mem(sc);
 	}
 
+	/* free the host hardware/software hsi structures */
+	bnx2x_free_hsi_mem(sc);
+
 	bnx2x_free_fw_stats_mem(sc);
 
 	sc->state = BNX2X_STATE_CLOSED;
@@ -2403,9 +2406,6 @@  static void bnx2x_free_mem(struct bnx2x_softc *sc)
 	ecore_ilt_mem_op(sc, ILT_MEMOP_FREE);
 
 	bnx2x_free_ilt_lines_mem(sc);
-
-	/* free the host hardware/software hsi structures */
-	bnx2x_free_hsi_mem(sc);
 }
 
 static int bnx2x_alloc_mem(struct bnx2x_softc *sc)
@@ -2456,13 +2456,6 @@  static int bnx2x_alloc_mem(struct bnx2x_softc *sc)
 		return -1;
 	}
 
-	/* allocate the host hardware/software hsi structures */
-	if (bnx2x_alloc_hsi_mem(sc) != 0) {
-		PMD_DRV_LOG(ERR, sc, "bnx2x_alloc_hsi_mem was failed");
-		bnx2x_free_mem(sc);
-		return -ENXIO;
-	}
-
 	return 0;
 }
 
@@ -7242,6 +7235,14 @@  int bnx2x_nic_load(struct bnx2x_softc *sc)
 		}
 	}
 
+	/* allocate the host hardware/software hsi structures */
+	if (bnx2x_alloc_hsi_mem(sc) != 0) {
+		PMD_DRV_LOG(ERR, sc, "bnx2x_alloc_hsi_mem was failed");
+		sc->state = BNX2X_STATE_CLOSED;
+		rc = -ENOMEM;
+		goto bnx2x_nic_load_error0;
+	}
+
 	if (bnx2x_alloc_fw_stats_mem(sc) != 0) {
 		sc->state = BNX2X_STATE_CLOSED;
 		rc = -ENOMEM;
@@ -7457,6 +7458,7 @@  int bnx2x_nic_load(struct bnx2x_softc *sc)
 bnx2x_nic_load_error0:
 
 	bnx2x_free_fw_stats_mem(sc);
+	bnx2x_free_hsi_mem(sc);
 	bnx2x_free_mem(sc);
 
 	return rc;
@@ -8902,9 +8904,9 @@  int bnx2x_alloc_hsi_mem(struct bnx2x_softc *sc)
 	uint32_t i;
 
 	if (IS_PF(sc)) {
-/************************/
-/* DEFAULT STATUS BLOCK */
-/************************/
+		/************************/
+		/* DEFAULT STATUS BLOCK */
+		/************************/
 
 		if (bnx2x_dma_alloc(sc, sizeof(struct host_sp_status_block),
 				  &sc->def_sb_dma, "def_sb",
@@ -8914,9 +8916,9 @@  int bnx2x_alloc_hsi_mem(struct bnx2x_softc *sc)
 
 		sc->def_sb =
 		    (struct host_sp_status_block *)sc->def_sb_dma.vaddr;
-/***************/
-/* EVENT QUEUE */
-/***************/
+		/***************/
+		/* EVENT QUEUE */
+		/***************/
 
 		if (bnx2x_dma_alloc(sc, BNX2X_PAGE_SIZE,
 				  &sc->eq_dma, "ev_queue",
@@ -8927,9 +8929,9 @@  int bnx2x_alloc_hsi_mem(struct bnx2x_softc *sc)
 
 		sc->eq = (union event_ring_elem *)sc->eq_dma.vaddr;
 
-/*************/
-/* SLOW PATH */
-/*************/
+		/*************/
+		/* SLOW PATH */
+		/*************/
 
 		if (bnx2x_dma_alloc(sc, sizeof(struct bnx2x_slowpath),
 				  &sc->sp_dma, "sp",
@@ -8941,9 +8943,9 @@  int bnx2x_alloc_hsi_mem(struct bnx2x_softc *sc)
 
 		sc->sp = (struct bnx2x_slowpath *)sc->sp_dma.vaddr;
 
-/*******************/
-/* SLOW PATH QUEUE */
-/*******************/
+		/*******************/
+		/* SLOW PATH QUEUE */
+		/*******************/
 
 		if (bnx2x_dma_alloc(sc, BNX2X_PAGE_SIZE,
 				  &sc->spq_dma, "sp_queue",
@@ -8956,9 +8958,9 @@  int bnx2x_alloc_hsi_mem(struct bnx2x_softc *sc)
 
 		sc->spq = (struct eth_spe *)sc->spq_dma.vaddr;
 
-/***************************/
-/* FW DECOMPRESSION BUFFER */
-/***************************/
+		/***************************/
+		/* FW DECOMPRESSION BUFFER */
+		/***************************/
 
 		if (bnx2x_dma_alloc(sc, FW_BUF_SIZE, &sc->gz_buf_dma,
 				  "fw_buf", RTE_CACHE_LINE_SIZE) != 0) {
@@ -8982,9 +8984,9 @@  int bnx2x_alloc_hsi_mem(struct bnx2x_softc *sc)
 		fp->sc = sc;
 		fp->index = i;
 
-/*******************/
-/* FP STATUS BLOCK */
-/*******************/
+		/*******************/
+		/* FP STATUS BLOCK */
+		/*******************/
 
 		snprintf(buf, sizeof(buf), "fp_%d_sb", i);
 		if (bnx2x_dma_alloc(sc, sizeof(union bnx2x_host_hc_status_block),
@@ -9015,49 +9017,50 @@  void bnx2x_free_hsi_mem(struct bnx2x_softc *sc)
 	for (i = 0; i < sc->num_queues; i++) {
 		fp = &sc->fp[i];
 
-/*******************/
-/* FP STATUS BLOCK */
-/*******************/
+		/*******************/
+		/* FP STATUS BLOCK */
+		/*******************/
 
 		memset(&fp->status_block, 0, sizeof(fp->status_block));
 		bnx2x_dma_free(&fp->sb_dma);
 	}
 
-	/***************************/
-	/* FW DECOMPRESSION BUFFER */
-	/***************************/
-
-	bnx2x_dma_free(&sc->gz_buf_dma);
-	sc->gz_buf = NULL;
+	if (IS_PF(sc)) {
+		/***************************/
+		/* FW DECOMPRESSION BUFFER */
+		/***************************/
 
-	/*******************/
-	/* SLOW PATH QUEUE */
-	/*******************/
+		bnx2x_dma_free(&sc->gz_buf_dma);
+		sc->gz_buf = NULL;
 
-	bnx2x_dma_free(&sc->spq_dma);
-	sc->spq = NULL;
+		/*******************/
+		/* SLOW PATH QUEUE */
+		/*******************/
 
-	/*************/
-	/* SLOW PATH */
-	/*************/
+		bnx2x_dma_free(&sc->spq_dma);
+		sc->spq = NULL;
 
-	bnx2x_dma_free(&sc->sp_dma);
-	sc->sp = NULL;
+		/*************/
+		/* SLOW PATH */
+		/*************/
 
-	/***************/
-	/* EVENT QUEUE */
-	/***************/
+		bnx2x_dma_free(&sc->sp_dma);
+		sc->sp = NULL;
 
-	bnx2x_dma_free(&sc->eq_dma);
-	sc->eq = NULL;
+		/***************/
+		/* EVENT QUEUE */
+		/***************/
 
-	/************************/
-	/* DEFAULT STATUS BLOCK */
-	/************************/
+		bnx2x_dma_free(&sc->eq_dma);
+		sc->eq = NULL;
 
-	bnx2x_dma_free(&sc->def_sb_dma);
-	sc->def_sb = NULL;
+		/************************/
+		/* DEFAULT STATUS BLOCK */
+		/************************/
 
+		bnx2x_dma_free(&sc->def_sb_dma);
+		sc->def_sb = NULL;
+	}
 }
 
 /*