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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Subject: [PATCH net-next v3 3/7] octeon_ep: control mailbox for multiple PFs Date: Mon, 13 Feb 2023 21:14:18 -0800 Message-ID: <20230214051422.13705-4-vburru@marvell.com> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20230214051422.13705-1-vburru@marvell.com> References: <20230214051422.13705-1-vburru@marvell.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Proofpoint-GUID: k8xdLBEO6BulBQNNFHAEJjZthSIBvJ2Q X-Proofpoint-ORIG-GUID: k8xdLBEO6BulBQNNFHAEJjZthSIBvJ2Q X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.170.22 definitions=2023-02-14_03,2023-02-13_01,2023-02-09_01 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add control mailbox support for multiple PFs. Update control mbox base address calculation based on PF function link. Signed-off-by: Veerasenareddy Burru Signed-off-by: Abhijit Ayarekar --- v2 -> v3: * no change v1 -> v2: * no change .../ethernet/marvell/octeon_ep/octep_cn9k_pf.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c b/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c index f40ebac15a79..c82a1347eed8 100644 --- a/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c @@ -13,6 +13,9 @@ #include "octep_main.h" #include "octep_regs_cn9k_pf.h" +#define CTRL_MBOX_MAX_PF 128 +#define CTRL_MBOX_SZ ((size_t)(0x400000 / CTRL_MBOX_MAX_PF)) + /* Names of Hardware non-queue generic interrupts */ static char *cn93_non_ioq_msix_names[] = { "epf_ire_rint", @@ -199,6 +202,8 @@ static void octep_init_config_cn93_pf(struct octep_device *oct) struct octep_config *conf = oct->conf; struct pci_dev *pdev = oct->pdev; u64 val; + int pos; + u8 link = 0; /* Read ring configuration: * PF ring count, number of VFs and rings per VF supported @@ -234,7 +239,16 @@ static void octep_init_config_cn93_pf(struct octep_device *oct) conf->msix_cfg.ioq_msix = conf->pf_ring_cfg.active_io_rings; conf->msix_cfg.non_ioq_msix_names = cn93_non_ioq_msix_names; - conf->ctrl_mbox_cfg.barmem_addr = (void __iomem *)oct->mmio[2].hw_addr + (0x400000ull * 7); + pos = pci_find_ext_capability(oct->pdev, PCI_EXT_CAP_ID_SRIOV); + if (pos) { + pci_read_config_byte(oct->pdev, + pos + PCI_SRIOV_FUNC_LINK, + &link); + link = PCI_DEVFN(PCI_SLOT(oct->pdev->devfn), link); + } + conf->ctrl_mbox_cfg.barmem_addr = (void __iomem *)oct->mmio[2].hw_addr + + (0x400000ull * 8) + + (link * CTRL_MBOX_SZ); } /* Setup registers for a hardware Tx Queue */ -- 2.36.0