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Mon, 13 Jul 2020 05:28:45 -0700 (PDT) From: rakeshs.lkm@gmail.com To: sbhatta@marvell.com, sgoutham@marvell.com, jerinj@marvell.com, rsaladi2@marvell.com, davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org Cc: Sunil Kovvuri Goutham Subject: [net-next PATCH 1/2] octeontx2-af: add npa error af interrupt handlers Date: Mon, 13 Jul 2020 17:56:39 +0530 Message-Id: <20200713122640.4155-2-rakeshs.lkm@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200713122640.4155-1-rakeshs.lkm@gmail.com> References: <20200713122640.4155-1-rakeshs.lkm@gmail.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jerin Jacob Added debug messages for NPA NPA_AF_RVU_INT, NPA_AF_GEN_INT, NPA_AF_ERR_INT and NPA_AF_RAS error AF interrupts Signed-off-by: Jerin Jacob Signed-off-by: Sunil Kovvuri Goutham Signed-off-by: Rakesh Babu Signed-off-by: Subbaraya Sundeep --- .../net/ethernet/marvell/octeontx2/af/rvu.c | 7 + .../net/ethernet/marvell/octeontx2/af/rvu.h | 2 + .../ethernet/marvell/octeontx2/af/rvu_npa.c | 230 ++++++++++++++++++ .../marvell/octeontx2/af/rvu_struct.h | 23 ++ 4 files changed, 262 insertions(+) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c index 557e4292c846..6c4027f04cfc 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c @@ -2130,6 +2130,8 @@ static void rvu_unregister_interrupts(struct rvu *rvu) { int irq; + rvu_npa_unregister_interrupts(rvu); + /* Disable the Mbox interrupt */ rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFAF_MBOX_INT_ENA_W1C, INTR_MASK(rvu->hw->total_pfs) & ~1ULL); @@ -2337,6 +2339,11 @@ static int rvu_register_interrupts(struct rvu *rvu) goto fail; } rvu->irq_allocated[offset] = true; + + ret = rvu_npa_register_interrupts(rvu); + if (ret) + goto fail; + return 0; fail: diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h index dcf25a092008..63c9f6049ad5 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h @@ -453,6 +453,8 @@ void rvu_npa_freemem(struct rvu *rvu); void rvu_npa_lf_teardown(struct rvu *rvu, u16 pcifunc, int npalf); int rvu_npa_aq_enq_inst(struct rvu *rvu, struct npa_aq_enq_req *req, struct npa_aq_enq_rsp *rsp); +int rvu_npa_register_interrupts(struct rvu *rvu); +void rvu_npa_unregister_interrupts(struct rvu *rvu); /* NIX APIs */ bool is_nixlf_attached(struct rvu *rvu, u16 pcifunc); diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c index 67471cb2b129..2476d20280cb 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c @@ -8,8 +8,10 @@ * published by the Free Software Foundation. */ +#include #include #include +#include #include "rvu_struct.h" #include "rvu_reg.h" @@ -541,3 +543,231 @@ void rvu_npa_lf_teardown(struct rvu *rvu, u16 pcifunc, int npalf) npa_ctx_free(rvu, pfvf); } + +static irqreturn_t rvu_npa_af_rvu_intr_handler(int irq, void *rvu_irq) +{ + struct rvu *rvu = (struct rvu *)rvu_irq; + int blkaddr; + u64 intr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return IRQ_NONE; + + intr = rvu_read64(rvu, blkaddr, NPA_AF_RVU_INT); + + if (intr & BIT_ULL(0)) + dev_err(rvu->dev, "NPA: Unmapped slot error\n"); + + /* Clear interrupts */ + rvu_write64(rvu, blkaddr, NPA_AF_RVU_INT, intr); + return IRQ_HANDLED; +} + +static const char *rvu_npa_inpq_to_str(u16 in) +{ + switch (in) { + case 0: + return NULL; + case BIT(NPA_INPQ_NIX0_RX): + return __stringify(NPA_INPQ_NIX0_RX); + case BIT(NPA_INPQ_NIX0_TX): + return __stringify(NPA_INPQ_NIX0_TX); + case BIT(NPA_INPQ_NIX1_RX): + return __stringify(NPA_INPQ_NIX1_RX); + case BIT(NPA_INPQ_NIX1_TX): + return __stringify(NPA_INPQ_NIX1_TX); + case BIT(NPA_INPQ_SSO): + return __stringify(NPA_INPQ_SSO); + case BIT(NPA_INPQ_TIM): + return __stringify(NPA_INPQ_TIM); + case BIT(NPA_INPQ_DPI): + return __stringify(NPA_INPQ_DPI); + case BIT(NPA_INPQ_AURA_OP): + return __stringify(NPA_INPQ_AURA_OP); + case BIT(NPA_INPQ_INTERNAL_RSV): + return __stringify(NPA_INPQ_INTERNAL_RSV); + } + + return "Reserved"; +} + +static irqreturn_t rvu_npa_af_gen_intr_handler(int irq, void *rvu_irq) +{ + struct rvu *rvu = (struct rvu *)rvu_irq; + const char *err_msg; + int blkaddr, val; + u64 intr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return IRQ_NONE; + + intr = rvu_read64(rvu, blkaddr, NPA_AF_GEN_INT); + + if (intr & BIT_ULL(32)) + dev_err(rvu->dev, "NPA: Unmapped PF func error\n"); + + val = FIELD_GET(GENMASK(31, 16), intr); + err_msg = rvu_npa_inpq_to_str(val); + if (err_msg) + dev_err(rvu->dev, "NPA: Alloc disabled for %s\n", err_msg); + + val = FIELD_GET(GENMASK(15, 0), intr); + err_msg = rvu_npa_inpq_to_str(val); + if (err_msg) + dev_err(rvu->dev, "NPA: Free disabled for %s\n", err_msg); + + /* Clear interrupts */ + rvu_write64(rvu, blkaddr, NPA_AF_GEN_INT, intr); + return IRQ_HANDLED; +} + +static irqreturn_t rvu_npa_af_err_intr_handler(int irq, void *rvu_irq) +{ + struct rvu *rvu = (struct rvu *)rvu_irq; + int blkaddr; + u64 intr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return IRQ_NONE; + + intr = rvu_read64(rvu, blkaddr, NPA_AF_ERR_INT); + + if (intr & BIT_ULL(14)) + dev_err(rvu->dev, "NPA: Memory fault on NPA_AQ_INST_S read\n"); + + if (intr & BIT_ULL(13)) + dev_err(rvu->dev, "NPA: Memory fault on NPA_AQ_RES_S write\n"); + + if (intr & BIT_ULL(12)) + dev_err(rvu->dev, "NPA: AQ doorbell error\n"); + + /* Clear interrupts */ + rvu_write64(rvu, blkaddr, NPA_AF_ERR_INT, intr); + return IRQ_HANDLED; +} + +static irqreturn_t rvu_npa_af_ras_intr_handler(int irq, void *rvu_irq) +{ + struct rvu *rvu = (struct rvu *)rvu_irq; + int blkaddr; + u64 intr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return IRQ_NONE; + + intr = rvu_read64(rvu, blkaddr, NPA_AF_RAS); + + if (intr & BIT_ULL(34)) + dev_err(rvu->dev, "NPA: Poisoned data on NPA_AQ_INST_S read\n"); + + if (intr & BIT_ULL(33)) + dev_err(rvu->dev, "NPA: Poisoned data on NPA_AQ_RES_S write\n"); + + if (intr & BIT_ULL(32)) + dev_err(rvu->dev, "NPA: Poisoned data on HW context read\n"); + + /* Clear interrupts */ + rvu_write64(rvu, blkaddr, NPA_AF_RAS, intr); + return IRQ_HANDLED; +} + +static bool rvu_npa_af_request_irq(struct rvu *rvu, int blkaddr, int offset, + const char *name, irq_handler_t fn) +{ + int rc; + + WARN_ON(rvu->irq_allocated[offset]); + rvu->irq_allocated[offset] = false; + sprintf(&rvu->irq_name[offset * NAME_SIZE], name); + rc = request_irq(pci_irq_vector(rvu->pdev, offset), fn, 0, + &rvu->irq_name[offset * NAME_SIZE], rvu); + if (rc) + dev_warn(rvu->dev, "Failed to register %s irq\n", name); + else + rvu->irq_allocated[offset] = true; + + return rvu->irq_allocated[offset]; +} + +int rvu_npa_register_interrupts(struct rvu *rvu) +{ + int blkaddr, base; + bool rc; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return blkaddr; + + /* Get NPA AF MSIX vectors offset. */ + base = rvu_read64(rvu, blkaddr, NPA_PRIV_AF_INT_CFG) & 0x3ff; + if (!base) { + dev_warn(rvu->dev, + "Failed to get NPA_AF_INT vector offsets\n"); + return 0; + } + + /* Register and enable NPA_AF_RVU_INT interrupt */ + rc = rvu_npa_af_request_irq(rvu, blkaddr, base + NPA_AF_INT_VEC_RVU, + "NPA_AF_RVU_INT", + rvu_npa_af_rvu_intr_handler); + if (!rc) + goto err; + rvu_write64(rvu, blkaddr, NPA_AF_RVU_INT_ENA_W1S, ~0ULL); + + /* Register and enable NPA_AF_GEN_INT interrupt */ + rc = rvu_npa_af_request_irq(rvu, blkaddr, base + NPA_AF_INT_VEC_GEN, + "NPA_AF_RVU_GEN", + rvu_npa_af_gen_intr_handler); + if (!rc) + goto err; + rvu_write64(rvu, blkaddr, NPA_AF_GEN_INT_ENA_W1S, ~0ULL); + + /* Register and enable NPA_AF_ERR_INT interrupt */ + rc = rvu_npa_af_request_irq(rvu, blkaddr, base + NPA_AF_INT_VEC_AF_ERR, + "NPA_AF_ERR_INT", + rvu_npa_af_err_intr_handler); + if (!rc) + goto err; + rvu_write64(rvu, blkaddr, NPA_AF_ERR_INT_ENA_W1S, ~0ULL); + + /* Register and enable NPA_AF_RAS interrupt */ + rc = rvu_npa_af_request_irq(rvu, blkaddr, base + NPA_AF_INT_VEC_POISON, + "NPA_AF_RAS", + rvu_npa_af_ras_intr_handler); + if (!rc) + goto err; + rvu_write64(rvu, blkaddr, NPA_AF_RAS_ENA_W1S, ~0ULL); + + return 0; +err: + rvu_npa_unregister_interrupts(rvu); + return rc; +} + +void rvu_npa_unregister_interrupts(struct rvu *rvu) +{ + int i, offs, blkaddr; + u64 reg; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return; + + reg = rvu_read64(rvu, blkaddr, NPA_PRIV_AF_INT_CFG); + offs = reg & 0x3FF; + + rvu_write64(rvu, blkaddr, NPA_AF_RVU_INT_ENA_W1C, ~0ULL); + rvu_write64(rvu, blkaddr, NPA_AF_GEN_INT_ENA_W1C, ~0ULL); + rvu_write64(rvu, blkaddr, NPA_AF_ERR_INT_ENA_W1C, ~0ULL); + rvu_write64(rvu, blkaddr, NPA_AF_RAS_ENA_W1C, ~0ULL); + + for (i = 0; i < NPA_AF_INT_VEC_CNT; i++) + if (rvu->irq_allocated[offs + i]) { + free_irq(pci_irq_vector(rvu->pdev, offs + i), rvu); + rvu->irq_allocated[offs + i] = false; + } +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h index a3ecb5de9000..bf5f03aeb5f0 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h @@ -60,6 +60,16 @@ enum rvu_af_int_vec_e { RVU_AF_INT_VEC_CNT = 0x5, }; +/* NPA Admin function Interrupt Vector Enumeration */ +enum npa_af_int_vec_e { + NPA_AF_INT_VEC_RVU = 0x0, + NPA_AF_INT_VEC_GEN = 0x1, + NPA_AF_INT_VEC_AQ_DONE = 0x2, + NPA_AF_INT_VEC_AF_ERR = 0x3, + NPA_AF_INT_VEC_POISON = 0x4, + NPA_AF_INT_VEC_CNT = 0x5, +}; + /** * RVU PF Interrupt Vector Enumeration */ @@ -100,6 +110,19 @@ enum npa_aq_instop { NPA_AQ_INSTOP_UNLOCK = 0x5, }; +/* ALLOC/FREE input queues Enumeration from coprocessors */ +enum npa_inpq { + NPA_INPQ_NIX0_RX = 0x0, + NPA_INPQ_NIX0_TX = 0x1, + NPA_INPQ_NIX1_RX = 0x2, + NPA_INPQ_NIX1_TX = 0x3, + NPA_INPQ_SSO = 0x4, + NPA_INPQ_TIM = 0x5, + NPA_INPQ_DPI = 0x6, + NPA_INPQ_AURA_OP = 0xe, + NPA_INPQ_INTERNAL_RSV = 0xf, +}; + /* NPA admin queue instruction structure */ struct npa_aq_inst_s { #if defined(__BIG_ENDIAN_BITFIELD) -- 2.17.1